US20100262162A1 - Medical manipulator and medical robot system - Google Patents
Medical manipulator and medical robot system Download PDFInfo
- Publication number
- US20100262162A1 US20100262162A1 US12/821,716 US82171610A US2010262162A1 US 20100262162 A1 US20100262162 A1 US 20100262162A1 US 82171610 A US82171610 A US 82171610A US 2010262162 A1 US2010262162 A1 US 2010262162A1
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- Prior art keywords
- distal
- rod
- shaped member
- intermediate joint
- joint
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- Abandoned
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00147—Holding or positioning arrangements
- A61B1/00149—Holding or positioning arrangements using articulated arms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/70—Manipulators specially adapted for use in surgery
- A61B34/71—Manipulators operated by drive cable mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/30—Surgical robots
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/30—Surgical robots
- A61B34/37—Master-slave robots
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/70—Manipulators specially adapted for use in surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2901—Details of shaft
- A61B2017/2908—Multiple segments connected by articulations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/70—Manipulators specially adapted for use in surgery
- A61B34/74—Manipulators with manual electric input means
- A61B2034/742—Joysticks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/361—Image-producing devices, e.g. surgical cameras
Definitions
- the present invention relates to a medical manipulator having a distal-end joint operable by flexible members that are actuated by actuators, and a medical robot system for actuating such a medical manipulator with a robot arm.
- a laparoscopic surgical operation process small holes are opened in the abdominal region, for example, of a patient, and an endoscope and manipulators or forceps are inserted into such holes.
- the surgeon performs a surgical operation on the patient with the manipulators or forceps, while watching an image captured by the endoscope and displayed on a display monitor. Since the laparoscopic surgical operation process does not require a laparotomy to be performed, the operation is less burdensome on the patient and greatly reduces the number of days required for the patient to spend in the hospital before recovering from the operation and being released from the hospital. Therefore, the range of surgical operations in which the endoscopic surgical operation process may be applied is expected to increase.
- a manipulator system comprises a manipulator and a controller for controlling the manipulator.
- the manipulator comprises an operating unit, which is manually operated, and a working unit replaceably mounted on the operating unit.
- the working unit comprises a long joint shaft and a distal-end working unit (referred to as an “end effector”) mounted on the distal end of the joint shaft.
- the operating unit has motors for actuating the working unit through wires.
- the wires have proximal end portions wound around respective pulleys.
- the controller energizes the motors of the operating unit to cause the pulleys to move the wires circulatively.
- the medical robot system can be remotely controlled by a master arm, and can be moved in various ways under a programmed control.
- the medical robot system has the robot arms, which can selectively be used depending on the surgical technique required.
- One of the robot arms incorporates an endoscope therein for capturing an image representing the inside of a body cavity, which is capable of being visually confirmed on a display monitor.
- the laparoscopic surgical operation process it is desirable to provide a wider operative field in the body cavity being operated on of the patient because the wider operative field allows the manipulators to operate with greater freedom in the body cavity.
- the body cavity may contain various organs in addition to the organ as the affected region, which make it difficult to provide a wide operative field in the body cavity.
- the manipulator on one of the robot arms of medical robot systems may be used as a retractor for retracting an organ or organs other than the affected region to a position out of interference with the surgical operation.
- the retractor when the organ or organs are retracted by the retractor, the retractor itself may be positioned across the body cavity, and present itself as an obstacle in the operative field.
- a medical manipulator includes a rod-shaped member housing therein a first flexible member actuatable by a first actuator and a second flexible member actuatable by a second actuator, the rod-shaped member being flexible at least partly, at least one distal-end joint disposed on a distal end of the rod-shaped member, the distal-end joint being angularly movable by a rotor around which the first flexible member is wound, and at least one intermediate joint disposed on the rod-shaped member more closely to a proximal end thereof than the distal-end joint, the intermediate joint being bendable in response to back-and-forth movement of the second flexible member.
- the medical manipulator allows the distal-end joint to perform an appropriate surgical procedure, and also allows the rod-shaped member to be appropriately placed because it can be bent at the intermediate joint, particularly for avoiding physical interference with other medical manipulators.
- the medical manipulator thus provides a wide operative field in a body cavity.
- the rod-shaped member may include at least one guide plate having a hole defined therein through which the first flexible member extends.
- the guide plate allows the first flexible member to be placed in an appropriate position even when the intermediate joint is bent.
- the medical manipulator may be connected to a robot arm, and the robot arm is controlled to insert the rod-shaped member through a trocar into a body cavity and to move back and forth and tilt the rod-shaped member with respect to the trocar.
- the medical manipulator can thus be appropriately moved with respect to the trocar.
- the intermediate joint may include a first intermediate joint and a second intermediate joint which are successively arranged from the distal end of the rod-shaped member.
- the first intermediate joint may be disposed in a position within a range from 3 cm to 5 cm from the distal end of the rod-shaped member
- the second intermediate joint may be disposed in a position within a range from 7 cm to 12 cm from the distal end of the rod-shaped member.
- the rod-shaped member can thus be placed appropriately in the body cavity.
- a medical robot system includes a plurality of first robot arms supporting respective manipulators thereon, a second robot arm supporting an endoscope thereon, and a controller for controlling the first robot arms and the second robot arm, each of the manipulators including a rod-shaped member for insertion through a trocar into a body cavity, and a distal-end working unit mounted on a distal end of the rod-shaped member and having at least one joint, wherein at least one of the manipulators comprises a retractor and has at least one intermediate joint disposed in the rod-shaped member for bending the rod-shaped member.
- the medical robot system allows the retractor to retract an organ or the like in a body cavity to a given region for thereby providing a wide operative field in the body cavity.
- the rod-shaped member As the rod-shaped member is bendable at the intermediate joint, the rod-shaped member can appropriately be positioned in the body cavity for providing a wider operative field in the body cavity. The rod-shaped member can thus avoid physical interference with other manipulators for performing a surgical procedure with ease.
- the retractor may coact with one of the first robot arms connected thereto in a predetermined operation mode for moving the distal-end working unit back and forth while keeping a posture of the distal-end working unit constant, in a coordinate system based on the posture of the distal-end working unit.
- the retractor can thus easily be operated to retract the organ or the like in the body cavity.
- the retractor may coact with one of the first robot arms connected thereto in a predetermined operation mode for bending the intermediate joint while keeping a position and a posture of the distal-end working unit constant.
- the intermediate joint can thus be bent appropriately with ease.
- the medical robot system may further include rotary input means for moving the intermediate joint on a hypothetical sphere or a hypothetical arc around a predetermined reference point on the rod-shaped member, depending on the angular amount by which and the direction in which the rotary input means is angularly moved.
- the rotary input means allows the user to bend the intermediate joint appropriately with ease and intuitively.
- the rotary input means may comprise a trackball for easy operation.
- the medical robot system may further include a switch for selectively enabling and disabling the rotary input means.
- the switch prevents the intermediate joint from being operated carelessly.
- a medical robot system includes a plurality of first robot arms supporting respective manipulators thereon, a second robot arm supporting an endoscope thereon, and a controller for controlling the first robot arms and the second robot arm, the manipulators and the endoscope being inserted into a body cavity through a common trocar supporting member, wherein each of the manipulators includes a rod-shaped member for insertion through the trocar supporting member into the body cavity, a distal-end working unit mounted on a distal end of the rod-shaped member and having at least one joint, and at least one intermediate joint disposed in the rod-shaped member for bending the rod-shaped member.
- the distal-end working units having the end effectors can be moved closer to each other by bending the rod-shaped members of the two manipulators which intersect with each other at the trocar supporting member, by means of the intermediate joints. Accordingly, for example, an operator can grip an affected region to be treated, with a gripper provided as an end effector at one distal-end working unit, while the operator can perform a procedure (incision etc.) on a portion around the region gripped by the gripper, with scissors provided as an end effector at another distal-end working unit. Additionally, the robot arms do not interfere with each other outside the body of the patient. Thus, a surgical procedure by single port access can be performed suitably.
- At least one of the manipulators may serve as a retractor, and the rod-shaped member of the at least one manipulator serving as the retractor may include a plurality of the intermediate joints.
- the manipulator serving as a retractor performs an operation (e.g., gripping) on an affected region with the end effector provided at the distal end thereof, while the manipulator pushes aside (retracts) the organ (obstacle to the operative field) with the rod-shaped member having a plurality of intermediate joints.
- an operation e.g., gripping
- the manipulator pushes aside (retracts) the organ (obstacle to the operative field) with the rod-shaped member having a plurality of intermediate joints.
- one manipulator doubles as a forceps and a retractor.
- a surgical procedure can be performed using a smaller number of manipulators.
- the trocar for a retractor can be omitted, and thus a much less-invasive surgery can be achieved.
- the medical robot system may further comprise a monitor for displaying an image captured with the endoscope, first input means which is operated by the left hand of an operator, and second input means which is operated by the right hand of the operator, wherein, when the rod-shaped members of two of the manipulators intersect with each other at the trocar supporting member, the manipulator that is located on the left side on a screen of the monitor is operated based on input operation by the first input means, and the manipulator that is located on the right side on the screen of the monitor is operated based on input operation by the second input means.
- the operator can operate the manipulators intuitively in a manner to fit the feeling of the operator, because operation by the left hand of the operator is reflected on the movement of the manipulator that is located on the left side on the screen, and operation by the right hand of the operator is reflected on the movement of the manipulator that is located on the right side on the screen.
- FIG. 1 is a perspective view of a medical robot system according to a first embodiment of the present invention
- FIG. 2 is a side elevational view, partly in cross section, of a manipulator according to the first embodiment of the present invention
- FIG. 3 is a plan view of a pulley and an arm
- FIG. 4 is an exploded perspective view of a first intermediate joint
- FIG. 5 is an exploded perspective view of a second intermediate joint
- FIG. 6 is a perspective view of a distal-end working unit
- FIG. 7 is a perspective view of a console
- FIG. 8 is a view illustrative of a tool coordinate operation mode
- FIG. 9 is a perspective view of a master arm
- FIG. 10 is a view illustrative of a bending motion of the first intermediate joint in an intermediate joint operation mode
- FIG. 11 is a view illustrative of a hypothetical hemisphere used as a reference for bending the first intermediate joint in the intermediate joint operation mode;
- FIG. 12 is a view illustrative of a bending motion of the second intermediate joint according to a first control process in the intermediate joint operation mode
- FIG. 13 is a view illustrative of a bending motion of the second intermediate joint according to a second control process in the intermediate joint operation mode
- FIG. 14 is a perspective view showing the manner in which a gripper of the manipulator grips a large intestine
- FIG. 15 is a perspective view showing the manner in which the gripper of the manipulator retracts the large intestine
- FIG. 16 is a perspective view showing the manner in which the first intermediate joint is bent
- FIG. 17 is a perspective view showing the manner in which the second intermediate joint is bent
- FIG. 18 is a perspective view of a distal-end action unit having a fan-like mechanism
- FIG. 19 is a schematic view illustrative of a medical robot system according to a second embodiment of the present invention.
- FIG. 20 is a schematic view illustrative of a medical robot system according to a third embodiment of the present invention.
- FIG. 21 is a schematic perspective view of a console of the medical robot system according to the third embodiment.
- FIGS. 1 through 21 A medical manipulator and a medical robot system according to embodiments of the present invention will be described below with reference to FIGS. 1 through 21 .
- a medical manipulator 10 c and a medical robot system 12 are particularly suitable for performing a laparoscopic surgical operation on a patient 14 .
- the medical robot system 12 comprises a station 16 disposed near a surgical bed 15 , four robot arms 18 a , 18 b , 18 c , 18 d mounted on the station 16 , and a console (controller) 20 for controlling the medical robot system 12 in its entirety.
- the robot arm 18 c will also be referred to as a first robot arm, and the robot arm 18 d as a second robot arm.
- the robot arms 18 a through 18 d and the console 20 may be connected to each other by a communication means comprising a wired link, a wireless link, a network, or a combination thereof.
- the console 20 is not required to control the medical robot system 12 in its entirety, but the robot arms 18 a through 18 d may be feedback-controlled by internal controllers combined with the medical robot system 12 .
- the robot arms 18 a through 18 c may be actuated under the control of the console 20 for being operated according to automatic programmed operations or may be manually actuated by respective joysticks 80 a , 80 b , 80 c on the console 20 .
- the robot arms 18 a through 18 d also may be actuated through a combination of automatic programmed operations and manually controlled operations.
- the robot arms 18 a through 18 c have manipulators 10 a , 10 b , 10 c disposed respectively on distal ends thereof.
- the robot arm 18 d has an endoscope 24 on the distal end thereof.
- the manipulators 10 a through 10 c and the endoscope 24 are inserted into a body cavity 27 of the patient 14 through respective trocars 25 .
- the station 16 may comprise a plurality of stations supporting the respective robot arms 18 a through 18 d .
- the manipulators 10 a through 10 c and the endoscope 24 are removably mounted onto the respective robot arms 18 a through 18 d.
- Each of the robot arms 18 a through 18 d has an articulated mechanism, e.g., a mechanism with six independent axes.
- the robot arms 18 a through 18 d are controlled by the console 20 , so as to set the manipulators 10 a through 10 c and the endoscope 24 at arbitrary postures and at arbitrary positions, within the operating ranges of the robot arms 18 a through 18 d .
- the robot arms 18 a through 18 c have respective joint mechanisms including rotary mechanisms 22 for rotating the manipulators 10 a through 10 c about respective joints shafts (rod-shaped members) 44 .
- the robot arms 18 a through 18 d have respective slide mechanisms 26 for moving the manipulators 10 a through 10 c and the endoscope 24 back and forth along the axes defined by the distal ends thereof, and respective lifting and lowering mechanisms 28 , which are movable vertically along the station 16 .
- the robot arms 18 a through 18 d may be structurally identical to each other, or may have different structures depending on the types of manipulators 10 a through 10 c and the endoscope 24 that are utilized.
- the manipulators 10 a , 10 b mounted respectively on the robot arms 18 a , 18 b serve to perform direct surgical techniques on an affected region of the patient 14 .
- a gripper, scissors, an electrosurgical knife, for example, are mounted onto distal-end working units of the manipulators 10 a , 10 b .
- the manipulator 10 c mounted on the robot arm 18 c comprises a retractor for retracting an organ in a body cavity 27 or the like to a given place to allow the surgeon to have a wider operative field.
- directions established with respect to the manipulator 10 c include X directions representing horizontal transverse directions of the manipulator 10 c , Y directions representing vertical transverse directions of the manipulator 10 c , and Z directions representing longitudinal directions of the manipulator 10 c , i.e., a joint shaft (rod-shaped member) 44 thereof.
- the X directions include an X 1 direction representing a rightward direction as viewed from the front of the manipulator 10 c and an X 2 direction representing a leftward direction as viewed from the front of the manipulator 10 c .
- the Y directions include a Y 1 direction representing an upward direction and a Y 2 direction representing a downward direction.
- the Z directions include a Z 1 direction representing a forward direction and a Z 2 direction representing a rearward direction.
- the manipulator 10 c is removably mounted on a slider 40 , which is disposed on the distal end of the robot arm 18 c .
- the slider 40 is slidable by the slide mechanism 26 .
- the slider 40 supports seven motors 30 a , 30 b , 30 c , 30 d , 30 e , 30 f , 30 g mounted therein in an array along the Z directions.
- the motors 30 a through 30 c (first actuator) serve to actuate a distal-end working unit 46
- the motors 30 d through 30 g serve to actuate a first intermediate joint 58 and a second intermediate joint 60 .
- the manipulator 10 c comprises a connecting block 42 for connection to the slider 40 , a hollow joint shaft 44 extending from the connecting block 42 in the Z 1 direction, and a distal-end working unit 46 mounted on the distal end of the joint shaft 44 .
- the connecting block 42 is removably and replaceably mounted on the slider 40 by a removable mounting mechanism.
- the connecting block 42 supports pulleys 48 a , 48 b , 48 c , 48 d , 48 e , 48 f , 48 g mounted thereon in an array along the Z directions and held in engagement with the respective motors 30 a through 38 g .
- the motors 30 a through 30 g or the pulleys 48 a through 48 g have noncircular teeth, while the pulleys 48 a through 48 g or the motors 30 a through 30 g have noncircular recesses.
- the noncircular teeth engage with the respective noncircular recesses for transmitting rotation of the motors 30 a through 30 g to the pulleys 48 a through 48 g.
- Wires 50 a , 50 b , 50 c , 50 d , 50 e , 50 f , 50 g are wound respectively around the pulleys 48 a through 48 g .
- the wires 50 a through 50 c (first flexible member) are annular in shape, wherein portions thereof are fixed to the pulleys 48 a through 48 c for preventing slippage on the pulleys 48 a through 48 c .
- the wires 50 a through 50 c are wound in 1.5 turns around the pulleys 48 a through 48 c , and extend in the Z 1 direction inside the joint shaft 44 .
- the pulleys 48 e , 48 g have respective winding members 52 around which the wires 50 e , 50 g (second flexible member) are wound.
- the connecting block 42 houses therein pairs of idlers 54 a , 54 b for guiding the wires 50 e , 50 g from the winding members 52 to the joint shaft 44 .
- the idlers 54 a , 54 b in the pairs are disposed in obliquely upward and downward positions that are spaced from the winding members 52 of the pulleys 48 e , 48 g in directions between the Z 1 and Y 1 directions and between the Z 1 and Y 2 directions, for guiding the wires 50 e , 50 g to upper and lower positions above and below the central axis of the joint shaft 44 .
- the pulley 48 d has an arm 56 extending in the X directions, and the wire 50 d has opposite ends connected to the respective ends of the arm 56 .
- the pulley 48 d is rotated about its own axis by the motor 30 d , one of the two left and right turns of the wire 50 d is wound in, and the other turn is wound off.
- the pulley 48 f and the wire 50 f are of a structure identical to the pulley 48 d and the wire 50 d .
- the pulleys 48 d , 48 f do not operate as pulleys, but are referred to as pulleys for the sake of convenience.
- the joint shaft 44 extends from the connecting block 42 in the Z 1 direction, and the distal-end working unit 46 is mounted on the distal end of the joint shaft 44 .
- the joint shaft 44 has a first intermediate joint 58 and a second intermediate joint 60 which are successively spaced from the distal end thereof.
- the first intermediate joint 58 and the second intermediate joint 60 are bent when the wires 50 d through 50 g are displaced back and forth in the joint shaft 44 .
- the first intermediate joint 58 may be located in any position (distance L 1 in FIG. 2 ) within a range from 3 cm to 5 cm from the distal end of the joint shaft 44 including the distal-end working unit 46 .
- the second intermediate joint 60 may be located in any position (distance L 2 in FIG. 2 ) within a range from 7 cm to 12 cm from the distal end of the joint shaft 44 including the distal-end working unit 46 .
- the manipulator 10 c suitably operates as a retractor in surgical techniques (see FIGS. 14 through 17 ) inside the body cavity 27 .
- the first intermediate joint 58 comprises a stacked array of joint rings 62 that are angularly movable with respect to each other.
- the first intermediate joint 58 is shown as comprising three joint rings 62 .
- the number of joint rings 62 is not limited to three, and the first intermediate joint 58 may comprise a suitable number of joint rings 62 , e.g., 4 through 30 joint rings 62 .
- Each of the joint rings 62 has a pair of V-shaped grooves 64 defined in one surface thereof in diametrically opposite relation to each other across the center of the joint ring 62 , and also has a pair of semicylindrical ridges 66 disposed on the other surface thereof in diametrically opposite relation to each other across the center of the joint ring 62 .
- the grooves 64 and the ridges 66 are angularly spaced 90° from each other.
- Adjacent two of the joint rings 62 are arranged such that their pairs of grooves 64 are angularly spaced 90° from each other, and are also joined to each other such that the ridges 66 of one of the joint rings 62 are inserted in the respective grooves 64 of the other joint ring 62 .
- Each of the joint rings 62 has four through holes 67 defined therein at positions of the grooves 64 and the ridges 66 .
- the wires 50 d , 50 e extend respectively through the through holes 67 in the joint rings 62 and have respective tip ends coupled to the joint ring 62 at the distal end side of the first intermediate joint 58 in the Z 1 direction.
- the joint rings 62 are joined together into a substantially integral assembly.
- the adjacent ones of the joint rings 62 can be angularly moved with respect to each other.
- the joint rings 62 of each adjacent pair are angularly movable through a small angle with respect to each other, the sum of the angles through which the joint rings 62 of all adjacent pairs are angularly movable is large enough to allow the first intermediate joint 58 to be bent through a desired angle, for example, in the range from about 60° to 120°. Accordingly, the distal-end working unit 46 can be bent into an orientation not parallel to the longitudinal axis of the joint shaft 44 .
- the wires 50 d , 50 e are displaced back and forth by the corresponding distance for thereby bending the first intermediate joint 58 through a desired angle vertically and horizontally in a plane transverse to the joint shaft 44 .
- the first intermediate joint 58 is bent or curved actively by being pulled by the wires 50 d , 50 e .
- the first intermediate joint 58 may be bent in desired directions and with a desired degree of freedom.
- the outer circumferential surface of each of the joint rings 62 may be covered with a layer made of an elastic or flexible material.
- Each of the joint rings 62 has a central guide plate 70 having six guide holes 68 defined therein, through which the wires 50 a , 50 b , 50 c extend.
- the six guide holes 68 are arranged in three pairs spaced apart in the Y directions, and are arrayed in two vertical rows spaced apart in the X directions.
- the six guide holes 68 are clustered near the central axis of the guide plate 70 .
- the joint rings 62 are shown as having the respective guide plates 70 , at least one of the joint rings 62 may have a central guide plate 70 .
- the wires 50 a though 50 c are guided through the guide holes 68 against being unduly displaced or bent, and are held out of contact with each other and remain in respective appropriate positions.
- the second intermediate joint 60 is essentially identical in structure to the first intermediate joint 58 , and comprises a stacked array of joint rings 62 each having four additional through holes 72 defined respectively adjacent to the four through holes 67 .
- the wires 50 f , 50 g extend respectively through the through holes 67 in the joint rings 62 , and act in the same manner as the wires 50 d , 50 e in the first intermediate joint 58 , for actively bending or curving the second intermediate joint 60 .
- the wires 50 d , 50 e extend respectively through the through holes 72 and further extend toward the first intermediate joint 58 in the Z 1 direction.
- the first intermediate joint 58 and the second intermediate joint 60 are covered with respective bellows-like or flexible and bendable sheaths.
- the other portion of the joint shaft 44 than the first intermediate joint 58 and the second intermediate joint 60 is made of a hard material.
- the distal-end working unit 46 is mounted on the distal end of the joint shaft 44 , and comprises at least a pulley (rotor) around which the wire 50 a is wound, a pulley around which the wire 50 b is wound, and a pulley around which the wire 50 c is wound.
- the pulleys in the distal-end working unit 46 are driven to rotate, causing the distal-end working unit 46 to move about three axes.
- the motions of the distal-end working unit 46 include angular motions about a pitch axis (distal-end joint) 74 and a yaw axis (distal-end joint) 75 and opening and closing motions of a gripper 78 , for example.
- the gripper 78 comprises a pair of gripper arms, one or both of which are openable.
- the distal-end working unit 46 may be of the same mechanism as the distal-end working unit of the medical manipulator disclosed in Japanese Laid-Open Patent Publication No. 2003-061969, for example.
- the console 20 calculates an amount of interference and controls the wires 50 a through 50 g to move back and forth to compensate for an interfering movement. In other words, the console 20 controls the wires 50 a through 50 g such that when it moves one of the movable members, it prevents the other from unnecessarily moving due to such an interfering movement.
- the manipulators 10 a , 10 b may be of a structure which is free from the first intermediate joint 58 , the second intermediate joint 60 , the motors 30 d through 30 f , the wires 50 d through 50 f , and the pulleys 48 d through 48 f of the manipulator 10 c , and which is otherwise the same as the manipulator 10 c .
- the manipulators 10 a , 10 b may be structurally identical to the manipulator 10 c.
- the console 20 has three joysticks 80 a , 80 b , 80 c as manual control units, a display monitor 82 (see FIG. 1 ), two trackballs (rotary input means) 84 a , 84 b , enable switches 86 a , 86 b for enabling or disabling input actions of the trackballs 84 a , 84 b , and return switches 88 a , 88 b .
- the display monitor 82 displays information about an endoscopic image captured by the endoscope 24 and other information.
- the trackballs 84 a , 84 b are spaced from each other at a central area on the upper surface of the control table of the console 20 .
- the return switches 88 a , 88 b are disposed behind the respective trackballs 84 a , 84 b .
- the enable switches 86 a , 86 b comprise arcuately-shaped momentary switches disposed around respectively partly circumferential surfaces of the trackballs 84 a , 84 b.
- the operator can operate the joysticks 80 a , 80 b , 80 c to move the robot arms 18 a , 18 b , 18 c individually.
- the robot arm 18 d can be operated by another input means, not shown.
- the joysticks 80 a , 80 b are positioned at respective left and right positions where they can easily be operated by the operator.
- the joystick 80 c is positioned in a central position behind the joysticks 80 a , 80 b.
- the joysticks 80 a , 80 b , 80 c are vertically movable, twistable, and tiltable in all directions for moving the robot arms 18 a , 18 b , 18 c according to the joystick motions.
- the joysticks 80 a , 80 b , 80 c are released from the hands of the operator, they automatically return to their upright reference orientations shown in FIG. 7 with the robot arms 18 a , 18 b , 18 c being kept in their displaced positions.
- the joysticks 80 a , 80 b , 80 c are basically identical in structure to each other, and have a handle grip 100 which is gripped by a human hand, a trigger lever 102 which is pushed and pulled mainly by an index finger and a middle finger, and a composite input pad 104 which is gripped mainly by a thumb.
- the gripper 78 is opened and closed.
- the composite input pad 104 includes horizontal and vertical see-saw switches 104 a , 104 b disposed centrally thereof in a crisscross pattern.
- the distal-end working unit 46 When the horizontal see-saw switch 104 a is operated, the distal-end working unit 46 is tilted about the yaw axis 75 , and when the vertical see-saw switch 104 b is operated, the distal-end working unit 46 is tilted about the pitch axis 74 .
- the robot arms 18 a , 18 b , 18 c can be operated in an absolute coordinate (world coordinate) operation mode and a tool coordinate operation mode, for example.
- the manipulator 10 c coacts with the robot arm 18 c (including the slide mechanism 26 ) connected thereto based on an input action of the joystick 80 c .
- the position of the distal-end working unit 46 is set based on absolute coordinates depending on the movement of the handle grip 100
- the orientation of the distal-end working unit 46 is set based on input actions of the see-saw switches 104 a , 104 b.
- the manipulator 10 c coacts with the robot arm 18 c (including the slide mechanism 26 ) connected thereto based on an input action of the joystick 80 c , for moving the distal-end working unit 46 back and forth in a constant posture based on a tool coordinate system according to the posture of the distal-end working unit 46 .
- a tool coordinate system having orthogonal axes Zt 0 , Xt 0 , Yt 0 (the axis Yt 0 is omitted from illustration) is established, and the distal-end working unit 46 is operated based on the established tool coordinate system.
- the distal-end working unit 46 is moved from an imaginary-line position to a solid-line position while the gripper 78 is extending along the coordinate axis Zt 0 .
- the position of a hypothetical reference point P 1 at the trocar 25 (pivot point) and the posture of the distal-end working unit 46 are kept constant.
- the joysticks 80 a , 80 b , 80 c may be replaced with a master arm 200 shown in FIG. 9 .
- the master arm 200 comprises a pivot shaft 202 , a first U-shaped member 204 , a second U-shaped member 206 , and a pair of tongue members 208 .
- the first U-shaped member 204 is open upwardly and rotatably mounted on the upper end of the pivot shaft 202 for rotation in a horizontal plane.
- the angle through which the first U-shaped member 204 is rotated with respect to the pivot shaft 202 is detected by a rotation sensor 210 and reflected in the motion of the distal-end working unit 46 about the yaw axis 75 .
- the second U-shaped member 206 is smaller in size than the first U-shaped member 204 , and is disposed in the first U-shaped member 204 .
- the first U-shaped member 204 and the second U-shaped member 206 have their ends rotatably connected to each other.
- the second U-shaped member 206 is rotatable in a vertical plane with respect to the first U-shaped member 204 .
- the angle through which the second U-shaped member 206 is rotated with respect to the first U-shaped member 204 is detected by a rotation sensor 212 and reflected in the motion of the distal-end working unit 46 about the pitch axis 74 .
- the tongue members 208 are rotatably mounted on an intermediate portion of the second U-shaped member 206 by a shaft 214 .
- the angle through which the shaft 214 is rotated with respect to the second U-shaped member 206 is detected by a rotation sensor 216 and reflected in the operation of the rotary mechanisms 22 (see FIG. 1 ).
- the tongue members 208 are openable and closable with respect to, i.e., movable toward and away from, each other about the shaft 214 .
- the angle through which the tongue members 208 are opened or closed with respect to each other is detected by an internal sensor 218 and reflected in the opening and closing motion of the gripper 78 .
- the master arm 200 is displaceable as a whole in the X, Y, and Z directions shown in FIG. 9 .
- the positions of the master arm 200 in the X, Y, and Z directions with respect to the console 20 can be detected by a sensor, not shown.
- the master arm 200 may be tilted in the X and Y directions with respect to the console 20 by tilting mechanisms.
- the detected position of the master arm 200 in the X, Y, and Z directions with respect to the console 20 are reflected in the absolute coordinates of the distal-end working unit 46 .
- the master arm 200 is thus capable of indicating six parameters with respect to the position and orientation of the distal-end working unit 46 , and also of instructing the gripper 78 to be opened and closed.
- the master arm 200 When the master arm 200 is released from the operator's hands, the master arm 200 may be returned to its home position shown in FIG. 9 under the bias of resilient members, not shown, with the robot arms 18 a , 18 b , 18 c being kept in their displaced positions.
- the distal-end working unit 46 may be moved along another coordinate axis Zt or in directions along the coordinate axis Zt or in a combination of those directions.
- the directions in which the distal-end working unit 46 moves laterally i.e., the X directions in FIG. 9
- the directions in which the distal-end working unit 46 moves back and forth i.e., the Y directions in FIG. 9
- the directions in which the distal-end working unit 46 moves vertically i.e., in the Z directions in FIG. 9
- correspond to a coordinate axis Zt correspond to a coordinate axis Zt.
- the posture of the robot arm 18 c may be determined by setting the position and posture of the distal-end working unit 46 , defining the position of the hypothetical reference point P 1 , and performing known matrix transform calculations.
- the distal-end working unit 46 may also be operated in the tool coordinate operation mode with the joystick 80 c or the master arm 200 .
- the distal-end working unit 46 can easily be operated to retract an organ in the body cavity 27 .
- the trackball 84 a serves as an input means for operating the first intermediate joint 58 of the manipulator 10 c.
- the manipulator 10 c Based on an input action of the trackball 84 a in an intermediate joint operation mode, the manipulator 10 c coacts with the robot arm 18 c (including the slide mechanism 26 ) connected thereto to bend the first intermediate joint 58 with the distal-end working unit 46 being kept in constant position and posture.
- a sphere (hypothetical spherical surface) 110 defined around the position P 2 of the distal-end joint (the pitch axis 74 and the yaw axis 75 ) of the distal-end working unit 46 at the time, the sphere 110 having a radius equal to the distance r 1 from the position P 2 to the first intermediate joint 58 , and the first intermediate joint 58 (indicated by a point P 3 in FIGS. 10 and 11 ) is moved along the surface of the sphere 110 from an imaginary-line position to a solid-line position.
- the position of the hypothetical reference point P 1 at the trocar 25 and the position and posture of the distal-end working unit 46 are kept constant.
- first intermediate joint 58 can be bent either vertically or laterally only, then the first intermediate joint 58 may be moved along a given hypothetical arc instead of the sphere 110 .
- orthogonal coordinate axes Xp, Yp extending across the first intermediate joint 58 along the sphere 110 are established based on the orientation of the distal-end working unit 46 or the orientation of the overall manipulator 10 c at the time.
- the directions in which it is angularly moved laterally correspond to the coordinate axis Xp
- the directions in which it is angularly moved back and forth correspond to the coordinate axis Yp.
- the first intermediate joint 58 is also bendable in all directions other than the coordinate axes Xp, Yp.
- the first intermediate joint 58 is bent depending on the direction in which the trackball 84 a is angularly moved and the angular amount by which the trackball 84 a is angularly moved.
- the trackball 84 a is stopped, the first intermediate joint 58 stops being bent.
- the first intermediate joint 58 reaches a limit of its bending range in a given direction, a bending command for bending the first intermediate joint 58 further in that direction is disabled.
- another rotary input means may be employed rather than the trackball 84 a .
- the joystick 80 c may be employed such that the directions in which it is tilted laterally correspond to the coordinate axis Xp and the directions in which it is tilted back and forth correspond to the coordinate axis Yp.
- the posture of the robot arm 18 c may be determined by setting the position and posture of the distal-end working unit 46 , defining the positions of the hypothetical reference point P 1 and the first intermediate joint 58 , and performing known matrix transform calculations.
- the enable switch 86 a is pressed to enable the trackball 84 a . If the enable switch 86 a is not pressed, then the trackball 84 a remains disabled, and the first intermediate joint 58 is prevented from being moved when the trackball 84 a is operated carelessly.
- the first intermediate joint 58 When the return switch 88 a is pressed, the first intermediate joint 58 automatically returns to a zero-bend-angle state (see FIG. 2 ) at a predetermined speed. With the first intermediate joint 58 in the zero-bend-angle state, the joint shaft 44 can easily be pulled out of the trocar 25 .
- the return switch 88 a is a momentary switch which is enabled only when it is pressed. When the return switch 88 a is released, the returning motion of the first intermediate joint 58 is interrupted, allowing the operator to confirm the state of the first intermediate joint 58 .
- the second intermediate joint 60 can also be bent by the trackball 84 b , the enable switch 86 b , and the return switch 88 b .
- the trackball 84 b , the enable switch 86 b , and the return switch 88 b operate in the same manner as the trackball 84 a , the enable switch 86 a , and the return switch 88 a.
- the second intermediate joint 60 can be controlled according to a plurality of control processes, which can be selected.
- a first control process as shown in FIG. 12 , there is assumed a sphere 112 around the first intermediate joint 58 , the sphere 112 having a radius equal to the distance r 2 from the first intermediate joint 58 to the second intermediate joint 60 , and the second intermediate joint 60 is moved along the surface of the sphere 112 from an imaginary-line position to a solid-line position.
- the position of the hypothetical reference point P 1 at the trocar 25 , the position and posture of the distal-end working unit 46 , and the position and posture of a link 114 extending from the point P 2 to the first intermediate joint 58 are kept constant.
- the first intermediate joint 58 is also bent in coaction with the second intermediate joint 60 as it is bent.
- a second control process as shown in FIG. 13 , there is assumed a sphere 116 defined around the position P 2 of the distal-end joint (the pitch axis 74 and the yaw axis 75 ) of the distal-end working unit 46 at the time, the sphere 116 having a radius equal to the distance r 3 from the position P 2 to the second intermediate joint 60 , and the second intermediate joint 60 is moved along the surface of the sphere 116 from an imaginary-line position to a solid-line position.
- the position of the hypothetical reference point P 1 at the trocar 25 and the position and posture of the distal-end working unit 46 are kept constant.
- the first intermediate joint 58 remains bent.
- the first intermediate joint 58 and the second intermediate joint 60 may automatically be moved according to a program or a teaching process, rather than being controlled based on the operation of the trackballs 84 a , 84 b.
- a gas is introduced around the affected region of the patient to form the body cavity 27 , and the distal-end working units 46 and the joint shaft 44 of the manipulator 10 c are inserted through the trocar 25 .
- the state in the body cavity 27 is confirmed based on an endoscopic image captured by the endoscope 24 that has been inserted into the body cavity 27 .
- the distal-end working unit 46 is bent around the pitch axis 74 and the yaw axis 75 into an orientation substantially perpendicularly to an appropriate portion of the large intestine 120 . Thereafter, the gripper 78 grips the large intestine 120 lightly.
- the distal-end working unit 46 is moved forward to retract the large intestine 120 to a deeper region.
- the distal-end working unit 46 may be pushed in the direction of a coordinate axis Zt 1 in the tool coordinate operation mode (see FIG. 8 ).
- the manipulator 10 c By thus retracting the large intestine 120 , the large intestine 120 is sufficiently spaced from the affected region 118 , allowing the surgeon to perform a surgical operation on the affected region 118 .
- the manipulator 10 c thus acts as a retractor. In some instances, even when the large intestine 120 is retracted away from the affected region 118 by the manipulator 10 c , the manipulator 10 c may be positioned across the body cavity 27 , failing to provide a wide operative field in the body cavity 27 .
- At least one of the first intermediate joint 58 and the second intermediate joint 60 of the manipulator 10 c is bent.
- the first intermediate joint 58 is bent to make the link 114 substantially parallel to the large intestine 120 .
- the joint shaft 44 is spaced from the affected region 118 , providing a wide operative field 122 around the affected region 118 .
- the surgeon finds it easy to perform a surgical procedure on the affected region 118 with the other manipulators 10 a , 10 b . As a result, the time required to perform the surgical operation may be shortened.
- the wide operative field 122 is provided simply by bending the first intermediate joint 58
- the second intermediate joint 60 may instead be bent to provide a wider operative field 124 , as shown in FIG. 17 .
- the first control process see FIG. 12
- the second control process see FIG. 13
- the distal-end working unit 46 has an axis S 1
- the link 114 has an axis S 2
- a link 129 extending from the first intermediate joint 58 to the second intermediate joint 60 has an axis S 3 .
- the second intermediate joint 60 may be bent such that the axes S 2 , S 3 are held in alignment with each other.
- the distal-end action unit 130 may comprise a membrane extending between two openable gripper arms. Since the distal-end action unit 130 does not grip the large intestine 120 , it is less detrimental to the large intestine 120 . When the distal-end action unit 130 is folded by closing the openable gripper arms, it can easily be inserted through the trocar 25 .
- the gripper 78 can be adjusted in orientation about the pitch axis 74 and the yaw axis 75 of the distal-end joint for performing an appropriate surgical procedure on the affected region. If the manipulator 10 c is used as a retractor, then the gripper 78 can appropriately be oriented to an organ such as the large intestine 120 . Furthermore, since the joint shaft 44 of the manipulator 10 c can be bent at the first intermediate joint 58 and the second intermediate joint 60 , the joint shaft 44 can be appropriately placed around the affected region to provide a wide operative field in the body cavity 27 . Particularly, the bendable joint shaft 44 is preferable to avoid physical interference with the other manipulators 10 a , 10 b in the body cavity 27 .
- the manipulator 10 c is connected to the robot arm 18 c , and the robot arm 18 c coacts with the manipulator 10 c to move the manipulator 10 c back and forth and tilt the manipulator 10 c with respect to the reference point P 1 at the trocar 25 for achieving appropriate manipulator motions.
- the manipulator 10 c is used to retract an organ or organs in the body cavity 27 to a given region to provide a wide operative field in the body cavity 27 .
- the joint shaft 44 is bendable at the first intermediate joint 58 and the second intermediate joint 60 , the joint shaft 44 can appropriately be positioned in the body cavity 27 to provide a wider operative field in the body cavity 27 and also to avoid physical interference with the other manipulators 10 a , 10 b for allowing the surgeon to perform a surgical procedure with ease.
- the first intermediate joint 58 and the second intermediate joint 60 are movable on a hypothetical sphere or a hypothetical arc around a given reference point depending on the angular amount by which and the direction in which the trackballs 84 a , 84 b are angularly moved.
- the trackballs 84 a , 84 b allow the operator to bend the first intermediate joint 58 and the second intermediate joint 60 appropriately with ease and also intuitively in a manner to fit the feeling of the operator.
- FIG. 19 is a schematic view illustrative of a medical robot system according to a second embodiment of the present invention.
- FIG. 19 shows manipulators 10 d , 10 e and an endoscope 24 , which are constituent elements of the medical robot system.
- the medical robot system according to the second embodiment differs from the medical robot system 10 according to the first embodiment in that the manipulator 10 d having a different structure from the manipulator 10 a is provided at the distal end of the robot arm 18 a and the manipulator 10 e having a different structure from the manipulator 10 b is provided at the distal end of the robot arm 18 b.
- a rod-shaped member 44 d of the manipulator 10 d has an intermediate joint 60 d in an intermediate portion thereof, and a rod-shaped member 44 e of the manipulator 10 e has an intermediate joint 60 e in an intermediate portion thereof.
- the intermediate joints 60 d , 60 e have the same structure as the first intermediate joint 58 shown in FIGS. 2 and 4 . More specifically, the manipulators 10 d , 10 e have such a structure that the second intermediate joint 60 is eliminated from the manipulator 10 shown in FIG. 2 .
- an end effector provided at the distal end of the manipulator 10 d is configured as scissors 79
- an end effector provided at the distal end of the manipulator 10 e is configured as a gripper 78 .
- the manipulators 10 d , 10 e can be operated using operation input means shown in FIG. 7 . More specifically, an operator operates joysticks (first and second input means) 80 a , 80 b to move and open/close distal-end working units 76 d , 76 e of the manipulators 10 d , 10 e and change the posture thereof. Further, the operator can operate trackballs 84 a , 84 b to move the intermediate joints 60 d , 60 e . Incidentally, the trackballs 84 a , 84 b may be omitted. In this case, a switch may be provided to select an object(s) to be operated, and the operator may operate the joysticks 80 a , 80 b to move the intermediate joints 60 d , 60 e.
- the manipulators 10 d , 10 e and the endoscope 24 are inserted into a body cavity 27 of a patient 14 through a common trocar supporting member 125 .
- the operator captures images of an affected region and its peripheral portions with the endoscope 24 , while performs a given surgical procedure on the affected region with the end effectors (gripper 78 and scissors 79 ) provided at the distal end of the manipulators 10 d , 10 e . That is, the medical robot system according to the second embodiment enables the operator to perform a surgical procedure by single port access.
- the trocar supporting member 125 has a plurality of holes (three holes in the present embodiment), into which the trocars 25 a to 25 c are hermetically inserted, respectively.
- the trocars 25 a , 25 b are adapted for the manipulators 10 d , 10 e
- the trocar 25 c is adapted for the endoscope 24 . If the outer diameter of the rod-shaped members 44 d , 44 e of the manipulators 10 d , 10 e has the same size as the inner diameter of the endoscope 24 , the trocars 25 a , 25 b and the trocar 25 c may have the same structure.
- a laparoscopic surgical operation process is performed using the medical robot system according to the second embodiment by single port access in the following manner.
- the trocar supporting member 125 is inserted into the patient 14 .
- the trocars 25 a , 25 b for the manipulators 10 d , 10 e and the trocar 25 c for the endoscope 24 are inserted into the trocar supporting member 125 .
- the two manipulators 10 d , 10 e and the endoscope 24 are inserted into the body cavity 27 of the patient 14 through the trocars 25 a , 25 b , 25 c , respectively.
- the rod-shaped members 44 d , 44 e of the manipulators 10 d , 10 e are straightened, and then they are inserted such that the rod-shaped members 44 d , 44 e intersect with each other.
- the intermediate joints 60 d , 60 e are bent in such a direction that the end effectors (gripper 78 and scissors 79 ) approach each other.
- an observing point of the endoscope 24 is secured in order that images of a portion to be treated and the distal-end working units 76 d , 76 e can be captured with the endoscope 24 .
- the operator performs a given surgical procedure on the portion to be treated, with the end effectors.
- a tissue 121 within the body cavity 27 is gripped with the gripper 78 , while a membranous tissue 140 near the tissue 121 is cut out with the scissors 79 .
- the distal-end working units 76 having the end effectors can be moved closer to each other by bending the rod-shaped members 44 d , 44 e of the two manipulators 10 d , 10 e which intersect with each other at the trocar supporting member 125 , by means of the intermediate joints 60 d , 60 e .
- a surgical procedure by single port access can be performed suitably.
- the proximal end portion of the manipulator 10 d is located on the left side, while the proximal end portion of the manipulator 10 e is located on the right side. Accordingly, the positional relation of the proximal end portions is opposite to the positional relation of the distal-end working units 76 d , 76 e .
- the field of view of the endoscope 24 (image captured with the endoscope 24 ), i.e., the area that is displayed on the screen of the monitor 82 (see FIG. 1 ), is represented by reference character A.
- the proximal end of the manipulator 10 d is located on the left side whereas the distal-end working unit 76 d of the manipulator 10 d is located on the right side on the screen of the monitor 82 .
- the proximal end of the manipulator 10 e is located on the right side whereas the distal-end working unit 76 e of the manipulator 10 e is located on the left side on the screen of the monitor 82 .
- the left joystick 80 a in FIG. 7 always serves to operate the left manipulator 10 d and the right joystick 80 b always serves to operate the right manipulator 10 e , an operator has to operate the joysticks 80 a , 80 b while imagining a positional relation that is left-and-right reverse to the positional relation of the distal-end working units 76 d , 76 e on the screen. Accordingly, the operator can not operate the manipulators intuitively.
- the console 20 may control operation of the manipulators 10 d , 10 e in a left-and-right reverse operation mode to be described below.
- the console 20 operates the manipulator 10 e whose distal-end working unit 76 e is located on the left side on the screen of the monitor 82 , based on input operation of the left joystick 80 a , while the console 20 operates the manipulator 10 d whose distal-end working unit 76 d is located on the right side on the screen of the monitor 82 , based on input operation of the right joystick 80 b.
- the operator can operate the manipulators intuitively in a manner to fit the feeling of the operator, because operation by the left hand of the operator is reflected on the movement of the manipulator 10 e whose distal-end working unit 76 e is located on the left side on the screen, and operation by the right hand of the operator is reflected on the movement of the manipulator 10 d whose distal-end working unit 76 d is located on the right side on the screen.
- a switch may be provided onto the console 20 , for enabling/disabling the left-and-right reverse operation mode, and the operator may manually operate the switch to cause the console to control operation of the manipulators in the left-and-right reverse operation mode.
- the console 20 may determine whether the rod-shaped members 44 d , 44 e intersect with each other or not, based on the positional coordinates of the manipulators 10 d , 10 e , and when the console 20 determines that the rod-shaped members 44 d , 44 e intersect with each other, the console 20 may automatically set the left-and-right reverse operation mode. In this case, the operator does not need to determine by oneself whether the rod-shaped members 44 d , 44 e intersect with each other or not, and burden on the operator is thus reduced.
- FIG. 20 is a schematic view illustrative of a medical robot system according to a third embodiment of the present invention.
- FIG. 20 shows manipulators 10 c , 10 d and an endoscope 24 , which are constituent elements of the medical robot system.
- the medical robot system according to the third embodiment is a medical robot system in which the manipulator 10 c (see FIG. 2 ) of the medical robot according to the first embodiment, instead of the manipulator 10 e , is applied to the medical robot system according to the second embodiment.
- the manipulator 10 d that is provided at the distal end of the robot arm 18 a has the same structure as the manipulator 10 d according to the second embodiment.
- the manipulator 10 c has the first intermediate joint 58 and the second intermediate joint 60 , and accordingly the rod-shaped member 44 can be bent at two points.
- the manipulator 10 c has greater flexibility to its possible shape, compared to the manipulator 10 e (see FIG. 19 ).
- the trocar supporting member 125 and the trocars 25 a to 25 c have the same structures as the trocar supporting member 125 and the trocars 25 a to 25 c shown in FIG. 19 , respectively.
- the manipulators 10 c , 10 d can be operated by means of operation input means 21 of a console 20 a shown in FIG. 21 .
- the console 20 a having the operation input means 21 differs from the console 20 shown in FIG. 7 in that the console 20 a further comprises two trackballs 84 c , 84 d and two enable switches 86 c , 86 d .
- an operator can operate the joysticks 80 a , 80 b to move and open/close distal-end working units 76 , 76 d of the manipulators 10 c , 10 d and change the posture thereof, and also operate the trackballs 84 a to 84 d to actuate the intermediate joint 60 d , the first intermediate joint 58 and the second intermediate joint 60 .
- the console 20 a can execute the left-and-right reverse operation mode, as with the console 20 according to the second embodiment. Accordingly, when the manipulators 10 c , 10 d intersect with each other, the manipulator 10 c whose distal-end working unit 76 is located on the left side is operated based on input operation by the left joystick 80 a , and the manipulator 10 d whose distal-end working unit 76 d is located on the right side is operated based on input operation by the right joystick 80 b .
- one (e.g., trackball 84 a at the back) of the two left trackballs 84 a , 84 c serves to operate the first intermediate joint 58
- the other trackball (e.g., trackball 84 c at the front) serves to operate the second intermediate joint 60
- one of the two right trackballs 84 b , 84 d serves to operate the intermediate joint 60 d.
- the manipulator 10 d is operated based on input operation by the left joystick 80 a
- the manipulator 10 c is operated based on input operation by the right joystick 80 b
- one of the two left trackballs 84 a , 84 c serves to operate the intermediate joint 60 d
- one (e.g., trackball 84 b at the back) of the two right trackballs 84 b , 84 d serves to operate the first intermediate joint 58
- the other trackball (e.g., trackball 84 d at the front) serves to operate the second intermediate joint 60 .
- the trackballs 84 a , 84 b may be provided on the left side and on the right side, respectively.
- a switch may be provided to select an object to be operated based on input operation by each of the trackballs 84 a , 84 b .
- the switch may be configured such that the operator can switch between one mode where operation by the trackball 84 a (or the trackball 84 b ) is reflected on the movement of the intermediate joint 60 d and anther mode where operations by the trackballs 84 a , 84 b are reflected on the movements of the first and second intermediate joints 58 , 60 , respectively.
- a laparoscopic surgical operation process is performed using the medical robot system according to the third embodiment by single port access in the following manner.
- the trocar supporting member 125 is inserted into the patient 14 .
- the trocars 25 a , 25 b for the manipulators 10 c , 10 d and the trocar 25 c for the endoscope 24 are inserted into the trocar supporting member 125 .
- the two manipulators 10 c , 10 d and the endoscope 24 are inserted into the body cavity 27 of the patient 14 through the trocars 25 a , 25 b , 25 c , respectively.
- the rod-shaped members 44 , 44 d of the manipulators 10 c , 10 d are straightened, and then they are inserted such that the rod-shaped members 44 , 44 d intersect with each other.
- the first and second intermediate joints 58 , 60 of the manipulator 10 c are bent, so that an organ 142 (obstacle to an operative field) is pushed aside (retracted) with the rod-shaped member 44 (link 114 in FIG. 20 ) for a wider operative field.
- the intermediate joint 60 d of the rod-shaped member 44 d are bent and the first and second intermediate joints 58 , 60 are further bent so as to move the end effectors closer to each other.
- an observing point of the endoscope 24 is secured in order that images of a portion to be treated and the distal-end working units 76 , 76 d can be captured with the endoscope 24 .
- the operator performs a given surgical procedure on the portion to be treated, with the end effectors.
- a tissue 121 within the body cavity 27 is gripped with the gripper 78 , while a membranous tissue 140 near the tissue 121 is cut out with the scissors 79 .
- the distal-end working units 76 , 76 d having the end effectors can be moved closer to each other by operation of the intermediate joint 60 d and the first and second intermediate joints 58 , 60 .
- a surgical procedure can be performed suitably by single port access, as in the second embodiment.
- the manipulator 10 c serving as a retractor performs an operation (e.g., gripping) on an affected region with the end effector provided at the distal end thereof, while the manipulator 10 c pushes aside the organ 142 (obstacle to the operative field) with the rod-shaped member 44 having a plurality of intermediate joints.
- an operation e.g., gripping
- the manipulator 10 c pushes aside the organ 142 (obstacle to the operative field) with the rod-shaped member 44 having a plurality of intermediate joints.
- one manipulator 10 c doubles as a forceps and a retractor.
- a surgical procedure can be performed using a smaller number of manipulators.
- the trocar for a retractor can be omitted, and thus a much less-invasive surgery can be achieved.
Abstract
The present invention relates to a medical manipulator and a medical robot system. The manipulator has a connecting block, a joint shaft, and a distal-end working unit. The distal-end working unit has a gripper, a pitch axis, and a yaw axis which serve as distal-end joints for changing the orientation of the gripper. The gripper, the pitch axis, and the yaw axis are operated by rotors around which wires are wound. The joint shaft has a first intermediate joint and a second intermediate joint which are bendable by the wires which are moved back and forth. Since the manipulator can be bent at the first intermediate joint and the second intermediate joint, the joint shaft can appropriately be placed, and the gripper can be adjusted to an appropriate orientation with respect to an organ by being turned around the pitch axis and the yaw axis.
Description
- This application is a continuation-in-part and claims the benefit of priority from U.S. application Ser. No. 12/327,189 filed Dec. 3, 2008, the entire contents of which are hereby incorporated by reference. U.S. application Ser. No. 12/327,189, claims the benefit of Priority to Japanese Patent Application No. 2007-339211, filed on Dec. 28, 2007.
- 1. Field of the Invention
- The present invention relates to a medical manipulator having a distal-end joint operable by flexible members that are actuated by actuators, and a medical robot system for actuating such a medical manipulator with a robot arm.
- 2. Description of the Related Art
- According to a laparoscopic surgical operation process, small holes are opened in the abdominal region, for example, of a patient, and an endoscope and manipulators or forceps are inserted into such holes. The surgeon performs a surgical operation on the patient with the manipulators or forceps, while watching an image captured by the endoscope and displayed on a display monitor. Since the laparoscopic surgical operation process does not require a laparotomy to be performed, the operation is less burdensome on the patient and greatly reduces the number of days required for the patient to spend in the hospital before recovering from the operation and being released from the hospital. Therefore, the range of surgical operations in which the endoscopic surgical operation process may be applied is expected to increase.
- As disclosed in Japanese Laid-open Patent Publication No. 2002-102248 and Japanese Laid-open Patent Publication No. 2003-061969, a manipulator system comprises a manipulator and a controller for controlling the manipulator. The manipulator comprises an operating unit, which is manually operated, and a working unit replaceably mounted on the operating unit.
- The working unit comprises a long joint shaft and a distal-end working unit (referred to as an “end effector”) mounted on the distal end of the joint shaft. The operating unit has motors for actuating the working unit through wires. The wires have proximal end portions wound around respective pulleys. The controller energizes the motors of the operating unit to cause the pulleys to move the wires circulatively.
- There has also been proposed a medical robot system for actuating medical manipulators with robot arms (see, for example, U.S. Pat. No. 6,331,181). The medical robot system can be remotely controlled by a master arm, and can be moved in various ways under a programmed control.
- The medical robot system has the robot arms, which can selectively be used depending on the surgical technique required. One of the robot arms incorporates an endoscope therein for capturing an image representing the inside of a body cavity, which is capable of being visually confirmed on a display monitor.
- According to the laparoscopic surgical operation process, it is desirable to provide a wider operative field in the body cavity being operated on of the patient because the wider operative field allows the manipulators to operate with greater freedom in the body cavity.
- The body cavity may contain various organs in addition to the organ as the affected region, which make it difficult to provide a wide operative field in the body cavity. The manipulator on one of the robot arms of medical robot systems may be used as a retractor for retracting an organ or organs other than the affected region to a position out of interference with the surgical operation.
- However, when the organ or organs are retracted by the retractor, the retractor itself may be positioned across the body cavity, and present itself as an obstacle in the operative field.
- It is an object of the present invention to provide a medical manipulator which is capable of keeping a wide operative field in a body cavity and a medical robot system incorporating such a medical manipulator.
- A medical manipulator according to an aspect of the present invention includes a rod-shaped member housing therein a first flexible member actuatable by a first actuator and a second flexible member actuatable by a second actuator, the rod-shaped member being flexible at least partly, at least one distal-end joint disposed on a distal end of the rod-shaped member, the distal-end joint being angularly movable by a rotor around which the first flexible member is wound, and at least one intermediate joint disposed on the rod-shaped member more closely to a proximal end thereof than the distal-end joint, the intermediate joint being bendable in response to back-and-forth movement of the second flexible member.
- The medical manipulator allows the distal-end joint to perform an appropriate surgical procedure, and also allows the rod-shaped member to be appropriately placed because it can be bent at the intermediate joint, particularly for avoiding physical interference with other medical manipulators. The medical manipulator thus provides a wide operative field in a body cavity.
- The rod-shaped member may include at least one guide plate having a hole defined therein through which the first flexible member extends. The guide plate allows the first flexible member to be placed in an appropriate position even when the intermediate joint is bent.
- The medical manipulator may be connected to a robot arm, and the robot arm is controlled to insert the rod-shaped member through a trocar into a body cavity and to move back and forth and tilt the rod-shaped member with respect to the trocar. The medical manipulator can thus be appropriately moved with respect to the trocar.
- The intermediate joint may include a first intermediate joint and a second intermediate joint which are successively arranged from the distal end of the rod-shaped member. The first intermediate joint may be disposed in a position within a range from 3 cm to 5 cm from the distal end of the rod-shaped member, and the second intermediate joint may be disposed in a position within a range from 7 cm to 12 cm from the distal end of the rod-shaped member. The rod-shaped member can thus be placed appropriately in the body cavity.
- A medical robot system according to another aspect of the present invention includes a plurality of first robot arms supporting respective manipulators thereon, a second robot arm supporting an endoscope thereon, and a controller for controlling the first robot arms and the second robot arm, each of the manipulators including a rod-shaped member for insertion through a trocar into a body cavity, and a distal-end working unit mounted on a distal end of the rod-shaped member and having at least one joint, wherein at least one of the manipulators comprises a retractor and has at least one intermediate joint disposed in the rod-shaped member for bending the rod-shaped member.
- The medical robot system allows the retractor to retract an organ or the like in a body cavity to a given region for thereby providing a wide operative field in the body cavity. As the rod-shaped member is bendable at the intermediate joint, the rod-shaped member can appropriately be positioned in the body cavity for providing a wider operative field in the body cavity. The rod-shaped member can thus avoid physical interference with other manipulators for performing a surgical procedure with ease.
- The retractor may coact with one of the first robot arms connected thereto in a predetermined operation mode for moving the distal-end working unit back and forth while keeping a posture of the distal-end working unit constant, in a coordinate system based on the posture of the distal-end working unit. The retractor can thus easily be operated to retract the organ or the like in the body cavity.
- The retractor may coact with one of the first robot arms connected thereto in a predetermined operation mode for bending the intermediate joint while keeping a position and a posture of the distal-end working unit constant. The intermediate joint can thus be bent appropriately with ease.
- The medical robot system may further include rotary input means for moving the intermediate joint on a hypothetical sphere or a hypothetical arc around a predetermined reference point on the rod-shaped member, depending on the angular amount by which and the direction in which the rotary input means is angularly moved. The rotary input means allows the user to bend the intermediate joint appropriately with ease and intuitively.
- The rotary input means may comprise a trackball for easy operation.
- The medical robot system may further include a switch for selectively enabling and disabling the rotary input means. The switch prevents the intermediate joint from being operated carelessly.
- A medical robot system according to another aspect of the present invention includes a plurality of first robot arms supporting respective manipulators thereon, a second robot arm supporting an endoscope thereon, and a controller for controlling the first robot arms and the second robot arm, the manipulators and the endoscope being inserted into a body cavity through a common trocar supporting member, wherein each of the manipulators includes a rod-shaped member for insertion through the trocar supporting member into the body cavity, a distal-end working unit mounted on a distal end of the rod-shaped member and having at least one joint, and at least one intermediate joint disposed in the rod-shaped member for bending the rod-shaped member.
- With the above structure, when a surgical procedure is performed by single port access, the distal-end working units having the end effectors can be moved closer to each other by bending the rod-shaped members of the two manipulators which intersect with each other at the trocar supporting member, by means of the intermediate joints. Accordingly, for example, an operator can grip an affected region to be treated, with a gripper provided as an end effector at one distal-end working unit, while the operator can perform a procedure (incision etc.) on a portion around the region gripped by the gripper, with scissors provided as an end effector at another distal-end working unit. Additionally, the robot arms do not interfere with each other outside the body of the patient. Thus, a surgical procedure by single port access can be performed suitably.
- At least one of the manipulators may serve as a retractor, and the rod-shaped member of the at least one manipulator serving as the retractor may include a plurality of the intermediate joints.
- With the above structure, the manipulator serving as a retractor performs an operation (e.g., gripping) on an affected region with the end effector provided at the distal end thereof, while the manipulator pushes aside (retracts) the organ (obstacle to the operative field) with the rod-shaped member having a plurality of intermediate joints. In this manner, one manipulator doubles as a forceps and a retractor. As a result, a surgical procedure can be performed using a smaller number of manipulators. Also, the trocar for a retractor can be omitted, and thus a much less-invasive surgery can be achieved.
- The medical robot system may further comprise a monitor for displaying an image captured with the endoscope, first input means which is operated by the left hand of an operator, and second input means which is operated by the right hand of the operator, wherein, when the rod-shaped members of two of the manipulators intersect with each other at the trocar supporting member, the manipulator that is located on the left side on a screen of the monitor is operated based on input operation by the first input means, and the manipulator that is located on the right side on the screen of the monitor is operated based on input operation by the second input means.
- With the above structure, even if the manipulators are inserted into the body cavity with the rod-shaped members thereof intersecting with each other, the operator can operate the manipulators intuitively in a manner to fit the feeling of the operator, because operation by the left hand of the operator is reflected on the movement of the manipulator that is located on the left side on the screen, and operation by the right hand of the operator is reflected on the movement of the manipulator that is located on the right side on the screen.
- The above and other objects, features, and advantages of the present invention will become more apparent from the following description when taken in conjunction with the accompanying drawings in which preferred embodiments of the present invention are shown by way of illustrative example.
-
FIG. 1 is a perspective view of a medical robot system according to a first embodiment of the present invention; -
FIG. 2 is a side elevational view, partly in cross section, of a manipulator according to the first embodiment of the present invention; -
FIG. 3 is a plan view of a pulley and an arm; -
FIG. 4 is an exploded perspective view of a first intermediate joint; -
FIG. 5 is an exploded perspective view of a second intermediate joint; -
FIG. 6 is a perspective view of a distal-end working unit; -
FIG. 7 is a perspective view of a console; -
FIG. 8 is a view illustrative of a tool coordinate operation mode; -
FIG. 9 is a perspective view of a master arm; -
FIG. 10 is a view illustrative of a bending motion of the first intermediate joint in an intermediate joint operation mode; -
FIG. 11 is a view illustrative of a hypothetical hemisphere used as a reference for bending the first intermediate joint in the intermediate joint operation mode; -
FIG. 12 is a view illustrative of a bending motion of the second intermediate joint according to a first control process in the intermediate joint operation mode; -
FIG. 13 is a view illustrative of a bending motion of the second intermediate joint according to a second control process in the intermediate joint operation mode; -
FIG. 14 is a perspective view showing the manner in which a gripper of the manipulator grips a large intestine; -
FIG. 15 is a perspective view showing the manner in which the gripper of the manipulator retracts the large intestine; -
FIG. 16 is a perspective view showing the manner in which the first intermediate joint is bent; -
FIG. 17 is a perspective view showing the manner in which the second intermediate joint is bent; -
FIG. 18 is a perspective view of a distal-end action unit having a fan-like mechanism; -
FIG. 19 is a schematic view illustrative of a medical robot system according to a second embodiment of the present invention; -
FIG. 20 is a schematic view illustrative of a medical robot system according to a third embodiment of the present invention; and -
FIG. 21 is a schematic perspective view of a console of the medical robot system according to the third embodiment. - Like or corresponding parts shall be denoted by like or corresponding reference characters throughout the views.
- A medical manipulator and a medical robot system according to embodiments of the present invention will be described below with reference to
FIGS. 1 through 21 . - As shown in
FIG. 1 , amedical manipulator 10 c and amedical robot system 12 according to a first embodiment of the present invention are particularly suitable for performing a laparoscopic surgical operation on apatient 14. - The
medical robot system 12 comprises astation 16 disposed near asurgical bed 15, fourrobot arms station 16, and a console (controller) 20 for controlling themedical robot system 12 in its entirety. Therobot arm 18 c will also be referred to as a first robot arm, and therobot arm 18 d as a second robot arm. Therobot arms 18 a through 18 d and theconsole 20 may be connected to each other by a communication means comprising a wired link, a wireless link, a network, or a combination thereof. Theconsole 20 is not required to control themedical robot system 12 in its entirety, but therobot arms 18 a through 18 d may be feedback-controlled by internal controllers combined with themedical robot system 12. Therobot arms 18 a through 18 c may be actuated under the control of theconsole 20 for being operated according to automatic programmed operations or may be manually actuated byrespective joysticks console 20. Therobot arms 18 a through 18 d also may be actuated through a combination of automatic programmed operations and manually controlled operations. - The
robot arms 18 a through 18 c havemanipulators robot arm 18 d has anendoscope 24 on the distal end thereof. Themanipulators 10 a through 10 c and theendoscope 24 are inserted into abody cavity 27 of the patient 14 throughrespective trocars 25. Thestation 16 may comprise a plurality of stations supporting therespective robot arms 18 a through 18 d. Themanipulators 10 a through 10 c and theendoscope 24 are removably mounted onto therespective robot arms 18 a through 18 d. - Each of the
robot arms 18 a through 18 d has an articulated mechanism, e.g., a mechanism with six independent axes. Therobot arms 18 a through 18 d are controlled by theconsole 20, so as to set themanipulators 10 a through 10 c and theendoscope 24 at arbitrary postures and at arbitrary positions, within the operating ranges of therobot arms 18 a through 18 d. Therobot arms 18 a through 18 c have respective joint mechanisms includingrotary mechanisms 22 for rotating themanipulators 10 a through 10 c about respective joints shafts (rod-shaped members) 44. - The
robot arms 18 a through 18 d haverespective slide mechanisms 26 for moving themanipulators 10 a through 10 c and theendoscope 24 back and forth along the axes defined by the distal ends thereof, and respective lifting and loweringmechanisms 28, which are movable vertically along thestation 16. Therobot arms 18 a through 18 d may be structurally identical to each other, or may have different structures depending on the types ofmanipulators 10 a through 10 c and theendoscope 24 that are utilized. - The
manipulators robot arms patient 14. A gripper, scissors, an electrosurgical knife, for example, are mounted onto distal-end working units of themanipulators manipulator 10 c mounted on therobot arm 18 c comprises a retractor for retracting an organ in abody cavity 27 or the like to a given place to allow the surgeon to have a wider operative field. - Further structural details of the
manipulator 10 c and a joint between themanipulator 10 c and therobot arm 18 c will be described below. As shown inFIGS. 2 through 6 , it is assumed that directions established with respect to themanipulator 10 c include X directions representing horizontal transverse directions of themanipulator 10 c, Y directions representing vertical transverse directions of themanipulator 10 c, and Z directions representing longitudinal directions of themanipulator 10 c, i.e., a joint shaft (rod-shaped member) 44 thereof. The X directions include an X1 direction representing a rightward direction as viewed from the front of themanipulator 10 c and an X2 direction representing a leftward direction as viewed from the front of themanipulator 10 c. The Y directions include a Y1 direction representing an upward direction and a Y2 direction representing a downward direction. The Z directions include a Z1 direction representing a forward direction and a Z2 direction representing a rearward direction. - As shown in
FIG. 2 , themanipulator 10 c is removably mounted on aslider 40, which is disposed on the distal end of therobot arm 18 c. Theslider 40 is slidable by theslide mechanism 26. Theslider 40 supports sevenmotors motors 30 a through 30 c (first actuator) serve to actuate a distal-end working unit 46, and themotors 30 d through 30 g (second actuator) serve to actuate a first intermediate joint 58 and a second intermediate joint 60. - The
manipulator 10 c comprises a connectingblock 42 for connection to theslider 40, a hollowjoint shaft 44 extending from the connectingblock 42 in the Z1 direction, and a distal-end working unit 46 mounted on the distal end of thejoint shaft 44. - The connecting
block 42 is removably and replaceably mounted on theslider 40 by a removable mounting mechanism. The connectingblock 42 supports pulleys 48 a, 48 b, 48 c, 48 d, 48 e, 48 f, 48 g mounted thereon in an array along the Z directions and held in engagement with therespective motors 30 a through 38 g. Themotors 30 a through 30 g or thepulleys 48 a through 48 g have noncircular teeth, while thepulleys 48 a through 48 g or themotors 30 a through 30 g have noncircular recesses. The noncircular teeth engage with the respective noncircular recesses for transmitting rotation of themotors 30 a through 30 g to thepulleys 48 a through 48 g. -
Wires pulleys 48 a through 48 g. Thewires 50 a through 50 c (first flexible member) are annular in shape, wherein portions thereof are fixed to thepulleys 48 a through 48 c for preventing slippage on thepulleys 48 a through 48 c. Thewires 50 a through 50 c are wound in 1.5 turns around thepulleys 48 a through 48 c, and extend in the Z1 direction inside thejoint shaft 44. When thepulleys 48 a through 48 c are rotated about their own axes by themotors 30 a through 30 c, one of the two left and right turns of each of thewires 50 a through 50 c is wound around the pulley, and the other turn is paid out from the pulley. Thewires 50 a through 50 c are spaced from each other in the Y directions so as to be held out of interference with each other. - The
pulleys members 52 around which thewires block 42 houses therein pairs ofidlers wires members 52 to thejoint shaft 44. Theidlers members 52 of thepulleys wires joint shaft 44. - When the
pulleys motors wires - As shown in
FIG. 3 , thepulley 48 d has anarm 56 extending in the X directions, and thewire 50 d has opposite ends connected to the respective ends of thearm 56. When thepulley 48 d is rotated about its own axis by themotor 30 d, one of the two left and right turns of thewire 50 d is wound in, and the other turn is wound off. Although not shown, thepulley 48 f and thewire 50 f are of a structure identical to thepulley 48 d and thewire 50 d. As thewires pulleys pulleys - As shown in
FIG. 2 , thejoint shaft 44 extends from the connectingblock 42 in the Z1 direction, and the distal-end working unit 46 is mounted on the distal end of thejoint shaft 44. Thejoint shaft 44 has a first intermediate joint 58 and a second intermediate joint 60 which are successively spaced from the distal end thereof. The first intermediate joint 58 and the second intermediate joint 60 are bent when thewires 50 d through 50 g are displaced back and forth in thejoint shaft 44. The first intermediate joint 58 may be located in any position (distance L1 inFIG. 2 ) within a range from 3 cm to 5 cm from the distal end of thejoint shaft 44 including the distal-end working unit 46. The second intermediate joint 60 may be located in any position (distance L2 inFIG. 2 ) within a range from 7 cm to 12 cm from the distal end of thejoint shaft 44 including the distal-end working unit 46. With the first intermediate joint 58 and the second intermediate joint 60 being thus positioned, themanipulator 10 c suitably operates as a retractor in surgical techniques (seeFIGS. 14 through 17 ) inside thebody cavity 27. - As shown in
FIG. 4 , the first intermediate joint 58 comprises a stacked array ofjoint rings 62 that are angularly movable with respect to each other. InFIG. 4 , the first intermediate joint 58 is shown as comprising threejoint rings 62. However, the number ofjoint rings 62 is not limited to three, and the first intermediate joint 58 may comprise a suitable number ofjoint rings 62, e.g., 4 through 30 joint rings 62. - Each of the joint rings 62 has a pair of V-shaped
grooves 64 defined in one surface thereof in diametrically opposite relation to each other across the center of thejoint ring 62, and also has a pair ofsemicylindrical ridges 66 disposed on the other surface thereof in diametrically opposite relation to each other across the center of thejoint ring 62. Thegrooves 64 and theridges 66 are angularly spaced 90° from each other. Adjacent two of the joint rings 62 are arranged such that their pairs ofgrooves 64 are angularly spaced 90° from each other, and are also joined to each other such that theridges 66 of one of the joint rings 62 are inserted in therespective grooves 64 of the otherjoint ring 62. - Each of the joint rings 62 has four through
holes 67 defined therein at positions of thegrooves 64 and theridges 66. Thewires holes 67 in the joint rings 62 and have respective tip ends coupled to thejoint ring 62 at the distal end side of the first intermediate joint 58 in the Z1 direction. The joint rings 62 are joined together into a substantially integral assembly. - With the
ridges 66 being inserted in therespective grooves 64, gaps are left between the adjacent ones of the joint rings 62, allowing theridges 66 to being angularly moved in therespective grooves 64. Therefore, the adjacent ones of the joint rings 62 can be angularly moved with respect to each other. Although the joint rings 62 of each adjacent pair are angularly movable through a small angle with respect to each other, the sum of the angles through which the joint rings 62 of all adjacent pairs are angularly movable is large enough to allow the first intermediate joint 58 to be bent through a desired angle, for example, in the range from about 60° to 120°. Accordingly, the distal-end working unit 46 can be bent into an orientation not parallel to the longitudinal axis of thejoint shaft 44. - When the
pulleys console 20, thewires joint shaft 44. In other words, the first intermediate joint 58 is bent or curved actively by being pulled by thewires - Each of the joint rings 62 has a
central guide plate 70 having sixguide holes 68 defined therein, through which thewires guide holes 68 are arranged in three pairs spaced apart in the Y directions, and are arrayed in two vertical rows spaced apart in the X directions. The sixguide holes 68 are clustered near the central axis of theguide plate 70. When the first intermediate joint 58 is not bent, thewires respective guide plates 70, at least one of the joint rings 62 may have acentral guide plate 70. - When the first intermediate joint 58 is bent, the
wires 50 a though 50 c are guided through the guide holes 68 against being unduly displaced or bent, and are held out of contact with each other and remain in respective appropriate positions. - As shown in
FIG. 5 , the second intermediate joint 60 is essentially identical in structure to the first intermediate joint 58, and comprises a stacked array ofjoint rings 62 each having four additional throughholes 72 defined respectively adjacent to the four throughholes 67. Thewires holes 67 in the joint rings 62, and act in the same manner as thewires wires holes 72 and further extend toward the first intermediate joint 58 in the Z1 direction. - The first intermediate joint 58 and the second intermediate joint 60 are covered with respective bellows-like or flexible and bendable sheaths. The other portion of the
joint shaft 44 than the first intermediate joint 58 and the second intermediate joint 60 is made of a hard material. - As shown in
FIG. 6 , the distal-end working unit 46 is mounted on the distal end of thejoint shaft 44, and comprises at least a pulley (rotor) around which thewire 50 a is wound, a pulley around which thewire 50 b is wound, and a pulley around which thewire 50 c is wound. When thewires pulleys block 42, the pulleys in the distal-end working unit 46 are driven to rotate, causing the distal-end working unit 46 to move about three axes. The motions of the distal-end working unit 46 include angular motions about a pitch axis (distal-end joint) 74 and a yaw axis (distal-end joint) 75 and opening and closing motions of agripper 78, for example. Thegripper 78 comprises a pair of gripper arms, one or both of which are openable. The distal-end working unit 46 may be of the same mechanism as the distal-end working unit of the medical manipulator disclosed in Japanese Laid-Open Patent Publication No. 2003-061969, for example. - Since the first intermediate joint 58, the second intermediate joint 60, the
pitch axis 74, the yaw axis 75, and thegripper 78 can possibly cause a mutual interference, theconsole 20 calculates an amount of interference and controls thewires 50 a through 50 g to move back and forth to compensate for an interfering movement. In other words, theconsole 20 controls thewires 50 a through 50 g such that when it moves one of the movable members, it prevents the other from unnecessarily moving due to such an interfering movement. - The
manipulators motors 30 d through 30 f, thewires 50 d through 50 f, and thepulleys 48 d through 48 f of themanipulator 10 c, and which is otherwise the same as themanipulator 10 c. Alternatively, themanipulators manipulator 10 c. - As shown in
FIG. 7 , theconsole 20 has threejoysticks FIG. 1 ), two trackballs (rotary input means) 84 a, 84 b, enableswitches trackballs switches endoscope 24 and other information. Thetrackballs console 20. The return switches 88 a, 88 b are disposed behind therespective trackballs trackballs - The operator can operate the
joysticks robot arms robot arm 18 d can be operated by another input means, not shown. Thejoysticks joystick 80 c is positioned in a central position behind thejoysticks - The
joysticks robot arms joysticks FIG. 7 with therobot arms joysticks handle grip 100 which is gripped by a human hand, atrigger lever 102 which is pushed and pulled mainly by an index finger and a middle finger, and acomposite input pad 104 which is gripped mainly by a thumb. When thetrigger lever 102 is operated, thegripper 78 is opened and closed. Thecomposite input pad 104 includes horizontal and vertical see-saw switches saw switch 104 a is operated, the distal-end working unit 46 is tilted about the yaw axis 75, and when the vertical see-saw switch 104 b is operated, the distal-end working unit 46 is tilted about thepitch axis 74. - The
robot arms - In the absolute coordinate operation mode, the
manipulator 10 c coacts with therobot arm 18 c (including the slide mechanism 26) connected thereto based on an input action of thejoystick 80 c. At this time, the position of the distal-end working unit 46 is set based on absolute coordinates depending on the movement of thehandle grip 100, and the orientation of the distal-end working unit 46 is set based on input actions of the see-saw switches - In the tool coordinate operation mode, the
manipulator 10 c coacts with therobot arm 18 c (including the slide mechanism 26) connected thereto based on an input action of thejoystick 80 c, for moving the distal-end working unit 46 back and forth in a constant posture based on a tool coordinate system according to the posture of the distal-end working unit 46. - For example, as shown in
FIG. 8 , according to the posture of the distal-end working unit 46 at the time, a tool coordinate system having orthogonal axes Zt0, Xt0, Yt0 (the axis Yt0 is omitted from illustration) is established, and the distal-end working unit 46 is operated based on the established tool coordinate system. The distal-end working unit 46 is moved from an imaginary-line position to a solid-line position while thegripper 78 is extending along the coordinate axis Zt0. At this time, the position of a hypothetical reference point P1 at the trocar 25 (pivot point) and the posture of the distal-end working unit 46 are kept constant. - The
joysticks master arm 200 shown inFIG. 9 . - As shown in
FIG. 9 , themaster arm 200 comprises apivot shaft 202, a firstU-shaped member 204, a secondU-shaped member 206, and a pair oftongue members 208. The firstU-shaped member 204 is open upwardly and rotatably mounted on the upper end of thepivot shaft 202 for rotation in a horizontal plane. The angle through which the firstU-shaped member 204 is rotated with respect to thepivot shaft 202 is detected by arotation sensor 210 and reflected in the motion of the distal-end working unit 46 about the yaw axis 75. - The second
U-shaped member 206 is smaller in size than the firstU-shaped member 204, and is disposed in the firstU-shaped member 204. The firstU-shaped member 204 and the secondU-shaped member 206 have their ends rotatably connected to each other. The secondU-shaped member 206 is rotatable in a vertical plane with respect to the firstU-shaped member 204. The angle through which the secondU-shaped member 206 is rotated with respect to the firstU-shaped member 204 is detected by arotation sensor 212 and reflected in the motion of the distal-end working unit 46 about thepitch axis 74. - The
tongue members 208 are rotatably mounted on an intermediate portion of the secondU-shaped member 206 by ashaft 214. The angle through which theshaft 214 is rotated with respect to the secondU-shaped member 206 is detected by arotation sensor 216 and reflected in the operation of the rotary mechanisms 22 (seeFIG. 1 ). - The
tongue members 208 are openable and closable with respect to, i.e., movable toward and away from, each other about theshaft 214. The angle through which thetongue members 208 are opened or closed with respect to each other is detected by aninternal sensor 218 and reflected in the opening and closing motion of thegripper 78. - The
master arm 200 is displaceable as a whole in the X, Y, and Z directions shown inFIG. 9 . The positions of themaster arm 200 in the X, Y, and Z directions with respect to theconsole 20 can be detected by a sensor, not shown. Themaster arm 200 may be tilted in the X and Y directions with respect to theconsole 20 by tilting mechanisms. The detected position of themaster arm 200 in the X, Y, and Z directions with respect to theconsole 20 are reflected in the absolute coordinates of the distal-end working unit 46. Themaster arm 200 is thus capable of indicating six parameters with respect to the position and orientation of the distal-end working unit 46, and also of instructing thegripper 78 to be opened and closed. - When the
master arm 200 is released from the operator's hands, themaster arm 200 may be returned to its home position shown inFIG. 9 under the bias of resilient members, not shown, with therobot arms - In the tool coordinate operation mode, the distal-
end working unit 46 may be moved along another coordinate axis Zt or in directions along the coordinate axis Zt or in a combination of those directions. In the tool coordinate operation mode, when themaster arm 200 is operated, the directions in which the distal-end working unit 46 moves laterally, i.e., the X directions inFIG. 9 , correspond to a coordinate axis Xt, the directions in which the distal-end working unit 46 moves back and forth, i.e., the Y directions inFIG. 9 , correspond to a coordinate axis Yt, and the directions in which the distal-end working unit 46 moves vertically, i.e., in the Z directions inFIG. 9 , correspond to a coordinate axis Zt. - In the tool coordinate operation mode, the posture of the
robot arm 18 c may be determined by setting the position and posture of the distal-end working unit 46, defining the position of the hypothetical reference point P1, and performing known matrix transform calculations. The distal-end working unit 46 may also be operated in the tool coordinate operation mode with thejoystick 80 c or themaster arm 200. - In the tool coordinate operation mode, the distal-
end working unit 46 can easily be operated to retract an organ in thebody cavity 27. - The
trackball 84 a serves as an input means for operating the first intermediate joint 58 of themanipulator 10 c. - Based on an input action of the
trackball 84 a in an intermediate joint operation mode, themanipulator 10 c coacts with therobot arm 18 c (including the slide mechanism 26) connected thereto to bend the first intermediate joint 58 with the distal-end working unit 46 being kept in constant position and posture. - For example, as shown in
FIG. 10 , there is assumed a sphere (hypothetical spherical surface) 110 defined around the position P2 of the distal-end joint (thepitch axis 74 and the yaw axis 75) of the distal-end working unit 46 at the time, thesphere 110 having a radius equal to the distance r1 from the position P2 to the first intermediate joint 58, and the first intermediate joint 58 (indicated by a point P3 inFIGS. 10 and 11 ) is moved along the surface of thesphere 110 from an imaginary-line position to a solid-line position. At this time, the position of the hypothetical reference point P1 at thetrocar 25 and the position and posture of the distal-end working unit 46 are kept constant. - If the first intermediate joint 58 can be bent either vertically or laterally only, then the first intermediate joint 58 may be moved along a given hypothetical arc instead of the
sphere 110. - In the intermediate joint operation mode, as shown in
FIG. 11 , orthogonal coordinate axes Xp, Yp extending across the first intermediate joint 58 along thesphere 110 are established based on the orientation of the distal-end working unit 46 or the orientation of theoverall manipulator 10 c at the time. At this time, when thetrackball 84 a is operated, the directions in which it is angularly moved laterally correspond to the coordinate axis Xp, and the directions in which it is angularly moved back and forth correspond to the coordinate axis Yp. The first intermediate joint 58 is also bendable in all directions other than the coordinate axes Xp, Yp. When thetrackball 84 a is angularly moved in a given direction, the first intermediate joint 58 is bent depending on the direction in which thetrackball 84 a is angularly moved and the angular amount by which thetrackball 84 a is angularly moved. When thetrackball 84 a is stopped, the first intermediate joint 58 stops being bent. When the first intermediate joint 58 reaches a limit of its bending range in a given direction, a bending command for bending the first intermediate joint 58 further in that direction is disabled. - In the intermediate joint operation mode, another rotary input means may be employed rather than the
trackball 84 a. For example, thejoystick 80 c may be employed such that the directions in which it is tilted laterally correspond to the coordinate axis Xp and the directions in which it is tilted back and forth correspond to the coordinate axis Yp. - In the intermediate joint operation mode, the posture of the
robot arm 18 c may be determined by setting the position and posture of the distal-end working unit 46, defining the positions of the hypothetical reference point P1 and the first intermediate joint 58, and performing known matrix transform calculations. - For operating the first intermediate joint 58, the enable switch 86 a is pressed to enable the
trackball 84 a. If the enable switch 86 a is not pressed, then thetrackball 84 a remains disabled, and the first intermediate joint 58 is prevented from being moved when thetrackball 84 a is operated carelessly. - When the return switch 88 a is pressed, the first intermediate joint 58 automatically returns to a zero-bend-angle state (see
FIG. 2 ) at a predetermined speed. With the first intermediate joint 58 in the zero-bend-angle state, thejoint shaft 44 can easily be pulled out of thetrocar 25. The return switch 88 a is a momentary switch which is enabled only when it is pressed. When the return switch 88 a is released, the returning motion of the first intermediate joint 58 is interrupted, allowing the operator to confirm the state of the first intermediate joint 58. - In the intermediate joint operation mode, the second intermediate joint 60 can also be bent by the
trackball 84 b, the enableswitch 86 b, and thereturn switch 88 b. Thetrackball 84 b, the enableswitch 86 b, and thereturn switch 88 b operate in the same manner as thetrackball 84 a, the enable switch 86 a, and the return switch 88 a. - The second intermediate joint 60 can be controlled according to a plurality of control processes, which can be selected. According to a first control process, as shown in
FIG. 12 , there is assumed asphere 112 around the first intermediate joint 58, thesphere 112 having a radius equal to the distance r2 from the first intermediate joint 58 to the second intermediate joint 60, and the second intermediate joint 60 is moved along the surface of thesphere 112 from an imaginary-line position to a solid-line position. At this time, the position of the hypothetical reference point P1 at thetrocar 25, the position and posture of the distal-end working unit 46, and the position and posture of alink 114 extending from the point P2 to the first intermediate joint 58 are kept constant. According to the first control process, the first intermediate joint 58 is also bent in coaction with the second intermediate joint 60 as it is bent. - According to a second control process, as shown in FIG. 13, there is assumed a
sphere 116 defined around the position P2 of the distal-end joint (thepitch axis 74 and the yaw axis 75) of the distal-end working unit 46 at the time, thesphere 116 having a radius equal to the distance r3 from the position P2 to the second intermediate joint 60, and the second intermediate joint 60 is moved along the surface of thesphere 116 from an imaginary-line position to a solid-line position. At this time, the position of the hypothetical reference point P1 at thetrocar 25 and the position and posture of the distal-end working unit 46 are kept constant. According to the second control process, the first intermediate joint 58 remains bent. - The first intermediate joint 58 and the second intermediate joint 60 may automatically be moved according to a program or a teaching process, rather than being controlled based on the operation of the
trackballs - Operation of the
manipulator 10 c and themedical robot system 12 thus constructed will be described below. - First, a gas is introduced around the affected region of the patient to form the
body cavity 27, and the distal-end working units 46 and thejoint shaft 44 of themanipulator 10 c are inserted through thetrocar 25. The state in thebody cavity 27 is confirmed based on an endoscopic image captured by theendoscope 24 that has been inserted into thebody cavity 27. - Prior to a surgical technique to be performed on an
affected region 118, other organs that exist around theaffected region 118 are retracted to given regions to provide a wide operative field in thebody cavity 27. - For example, as shown in
FIG. 14 , for retracting alarge intestine 120, the distal-end working unit 46 is bent around thepitch axis 74 and the yaw axis 75 into an orientation substantially perpendicularly to an appropriate portion of thelarge intestine 120. Thereafter, thegripper 78 grips thelarge intestine 120 lightly. - Then, as shown in
FIG. 15 , the distal-end working unit 46 is moved forward to retract thelarge intestine 120 to a deeper region. At this time, in order to keep the distal-end working unit 46 and the gripped portion of thelarge intestine 120 oriented relatively to each other, the distal-end working unit 46 may be pushed in the direction of a coordinate axis Zt1 in the tool coordinate operation mode (seeFIG. 8 ). - By thus retracting the
large intestine 120, thelarge intestine 120 is sufficiently spaced from the affectedregion 118, allowing the surgeon to perform a surgical operation on theaffected region 118. Themanipulator 10 c thus acts as a retractor. In some instances, even when thelarge intestine 120 is retracted away from the affectedregion 118 by themanipulator 10 c, themanipulator 10 c may be positioned across thebody cavity 27, failing to provide a wide operative field in thebody cavity 27. - To avoid the above difficulty, at least one of the first intermediate joint 58 and the second intermediate joint 60 of the
manipulator 10 c is bent. - For example, as shown in
FIG. 16 , in the intermediate joint operation mode, the first intermediate joint 58 is bent to make thelink 114 substantially parallel to thelarge intestine 120. Thus, thejoint shaft 44 is spaced from the affectedregion 118, providing a wideoperative field 122 around theaffected region 118. The surgeon finds it easy to perform a surgical procedure on theaffected region 118 with theother manipulators - Although the wide
operative field 122 is provided simply by bending the first intermediate joint 58, the second intermediate joint 60 may instead be bent to provide a wideroperative field 124, as shown inFIG. 17 . For bending the second intermediate joint 60, one or both of the first control process (seeFIG. 12 ) and the second control process (seeFIG. 13 ) may be carried out. - In this case, it is assumed that the distal-
end working unit 46 has an axis S1, thelink 114 has an axis S2, and alink 129 extending from the first intermediate joint 58 to the second intermediate joint 60 has an axis S3. The second intermediate joint 60 may be bent such that the axes S2, S3 are held in alignment with each other. - For retracting the
large intestine 120, it may not be gripped by thegripper 78, but may be engaged and pushed by a distal-end action unit 130 (seeFIG. 18 ) having a folding-fan-like mechanism. The distal-end action unit 130 may comprise a membrane extending between two openable gripper arms. Since the distal-end action unit 130 does not grip thelarge intestine 120, it is less detrimental to thelarge intestine 120. When the distal-end action unit 130 is folded by closing the openable gripper arms, it can easily be inserted through thetrocar 25. - With the
manipulator 10 c according to the present embodiment, thegripper 78 can be adjusted in orientation about thepitch axis 74 and the yaw axis 75 of the distal-end joint for performing an appropriate surgical procedure on the affected region. If themanipulator 10 c is used as a retractor, then thegripper 78 can appropriately be oriented to an organ such as thelarge intestine 120. Furthermore, since thejoint shaft 44 of themanipulator 10 c can be bent at the first intermediate joint 58 and the second intermediate joint 60, thejoint shaft 44 can be appropriately placed around the affected region to provide a wide operative field in thebody cavity 27. Particularly, the bendablejoint shaft 44 is preferable to avoid physical interference with theother manipulators body cavity 27. - The
manipulator 10 c is connected to therobot arm 18 c, and therobot arm 18 c coacts with themanipulator 10 c to move themanipulator 10 c back and forth and tilt themanipulator 10 c with respect to the reference point P1 at thetrocar 25 for achieving appropriate manipulator motions. - With the
medical robot system 12 according to the present embodiment, themanipulator 10 c is used to retract an organ or organs in thebody cavity 27 to a given region to provide a wide operative field in thebody cavity 27. Inasmuch as thejoint shaft 44 is bendable at the first intermediate joint 58 and the second intermediate joint 60, thejoint shaft 44 can appropriately be positioned in thebody cavity 27 to provide a wider operative field in thebody cavity 27 and also to avoid physical interference with theother manipulators - The first intermediate joint 58 and the second intermediate joint 60 are movable on a hypothetical sphere or a hypothetical arc around a given reference point depending on the angular amount by which and the direction in which the
trackballs trackballs -
FIG. 19 is a schematic view illustrative of a medical robot system according to a second embodiment of the present invention.FIG. 19 showsmanipulators endoscope 24, which are constituent elements of the medical robot system. - The medical robot system according to the second embodiment differs from the medical robot system 10 according to the first embodiment in that the
manipulator 10 d having a different structure from themanipulator 10 a is provided at the distal end of therobot arm 18 a and themanipulator 10 e having a different structure from themanipulator 10 b is provided at the distal end of therobot arm 18 b. - A rod-shaped
member 44d of themanipulator 10 d has an intermediate joint 60 d in an intermediate portion thereof, and a rod-shapedmember 44e of themanipulator 10 e has an intermediate joint 60 e in an intermediate portion thereof. Theintermediate joints FIGS. 2 and 4 . More specifically, themanipulators FIG. 2 . In the structure shown inFIG. 19 , an end effector provided at the distal end of themanipulator 10 d is configured asscissors 79, and an end effector provided at the distal end of themanipulator 10 e is configured as agripper 78. - The
manipulators FIG. 7 . More specifically, an operator operates joysticks (first and second input means) 80 a, 80 b to move and open/close distal-end working units manipulators trackballs intermediate joints trackballs joysticks intermediate joints - As shown in
FIG. 19 , themanipulators endoscope 24 are inserted into abody cavity 27 of a patient 14 through a commontrocar supporting member 125. The operator captures images of an affected region and its peripheral portions with theendoscope 24, while performs a given surgical procedure on the affected region with the end effectors (gripper 78 and scissors 79) provided at the distal end of themanipulators - More specifically, the
trocar supporting member 125 has a plurality of holes (three holes in the present embodiment), into which thetrocars 25 a to 25 c are hermetically inserted, respectively. Thetrocars manipulators trocar 25 c is adapted for theendoscope 24. If the outer diameter of the rod-shapedmembers manipulators endoscope 24, thetrocars trocar 25 c may have the same structure. - A laparoscopic surgical operation process is performed using the medical robot system according to the second embodiment by single port access in the following manner.
- First, the
trocar supporting member 125 is inserted into thepatient 14. Next, thetrocars manipulators trocar 25 c for theendoscope 24 are inserted into thetrocar supporting member 125. Then, the twomanipulators endoscope 24 are inserted into thebody cavity 27 of the patient 14 through thetrocars FIG. 19 , the rod-shapedmembers manipulators members - After the rod-shaped
members intermediate joints gripper 78 and scissors 79) approach each other. Next, an observing point of theendoscope 24 is secured in order that images of a portion to be treated and the distal-end working units endoscope 24. Then, the operator performs a given surgical procedure on the portion to be treated, with the end effectors. In a surgical example shown inFIG. 19 , atissue 121 within thebody cavity 27 is gripped with thegripper 78, while amembranous tissue 140 near thetissue 121 is cut out with thescissors 79. - With the medical robot system according to the second embodiment, when a surgical procedure is performed by single port access, the distal-
end working units 76 having the end effectors can be moved closer to each other by bending the rod-shapedmembers manipulators trocar supporting member 125, by means of theintermediate joints - As shown in
FIG. 19 , when the rod-shapedmembers manipulators manipulator 10 d is located on the left side, while the proximal end portion of themanipulator 10 e is located on the right side. Accordingly, the positional relation of the proximal end portions is opposite to the positional relation of the distal-end working units FIG. 1 ), is represented by reference character A. As described above, the proximal end of themanipulator 10 d is located on the left side whereas the distal-end working unit 76 d of themanipulator 10 d is located on the right side on the screen of themonitor 82. Similarly, the proximal end of themanipulator 10 e is located on the right side whereas the distal-end working unit 76 e of themanipulator 10 e is located on the left side on the screen of themonitor 82. - If the
left joystick 80 a inFIG. 7 always serves to operate theleft manipulator 10 d and theright joystick 80 b always serves to operate theright manipulator 10 e, an operator has to operate thejoysticks end working units - Thus, when the
manipulators body cavity 27 such that the rod-shapedmembers FIG. 1 ) may control operation of themanipulators console 20 operates themanipulator 10 e whose distal-end working unit 76 e is located on the left side on the screen of themonitor 82, based on input operation of theleft joystick 80 a, while theconsole 20 operates themanipulator 10 d whose distal-end working unit 76 d is located on the right side on the screen of themonitor 82, based on input operation of theright joystick 80 b. - By setting the left-and-right reverse operation mode, even if the
manipulators body cavity 27 with the rod-shapedmembers manipulator 10 e whose distal-end working unit 76 e is located on the left side on the screen, and operation by the right hand of the operator is reflected on the movement of themanipulator 10 d whose distal-end working unit 76 d is located on the right side on the screen. - In this case, a switch may be provided onto the
console 20, for enabling/disabling the left-and-right reverse operation mode, and the operator may manually operate the switch to cause the console to control operation of the manipulators in the left-and-right reverse operation mode. - Alternatively, the
console 20 may determine whether the rod-shapedmembers manipulators console 20 determines that the rod-shapedmembers console 20 may automatically set the left-and-right reverse operation mode. In this case, the operator does not need to determine by oneself whether the rod-shapedmembers -
FIG. 20 is a schematic view illustrative of a medical robot system according to a third embodiment of the present invention.FIG. 20 showsmanipulators endoscope 24, which are constituent elements of the medical robot system. - The medical robot system according to the third embodiment is a medical robot system in which the
manipulator 10 c (seeFIG. 2 ) of the medical robot according to the first embodiment, instead of themanipulator 10 e, is applied to the medical robot system according to the second embodiment. Themanipulator 10 d that is provided at the distal end of therobot arm 18 a has the same structure as themanipulator 10 d according to the second embodiment. - As described above, the
manipulator 10 c has the first intermediate joint 58 and the second intermediate joint 60, and accordingly the rod-shapedmember 44 can be bent at two points. Thus, themanipulator 10 c has greater flexibility to its possible shape, compared to themanipulator 10 e (seeFIG. 19 ). Thetrocar supporting member 125 and thetrocars 25 a to 25 c have the same structures as thetrocar supporting member 125 and thetrocars 25 a to 25 c shown inFIG. 19 , respectively. - The
manipulators console 20 a shown inFIG. 21 . Theconsole 20 a having the operation input means 21 differs from theconsole 20 shown inFIG. 7 in that theconsole 20 a further comprises twotrackballs switches joysticks end working units manipulators trackballs 84 a to 84 d to actuate the intermediate joint 60 d, the first intermediate joint 58 and the second intermediate joint 60. - The
console 20 a can execute the left-and-right reverse operation mode, as with theconsole 20 according to the second embodiment. Accordingly, when themanipulators manipulator 10 c whose distal-end working unit 76 is located on the left side is operated based on input operation by theleft joystick 80 a, and themanipulator 10 d whose distal-end working unit 76 d is located on the right side is operated based on input operation by theright joystick 80 b. In this case, one (e.g., trackball 84 a at the back) of the twoleft trackballs trackball 84 c at the front) serves to operate the second intermediate joint 60. Further, one of the tworight trackballs - When the
manipulators manipulator 10 d is operated based on input operation by theleft joystick 80 a, while themanipulator 10 c is operated based on input operation by theright joystick 80 b. In this case, one of the twoleft trackballs trackball 84 b at the back) of the tworight trackballs trackball 84 d at the front) serves to operate the second intermediate joint 60. - Incidentally, as with the operation input means of the
console 20 shown inFIG. 7 , thetrackballs trackballs trackball 84 a (or thetrackball 84 b) is reflected on the movement of the intermediate joint 60 d and anther mode where operations by thetrackballs intermediate joints - A laparoscopic surgical operation process is performed using the medical robot system according to the third embodiment by single port access in the following manner. First, the
trocar supporting member 125 is inserted into thepatient 14. Next, thetrocars manipulators trocar 25 c for theendoscope 24 are inserted into thetrocar supporting member 125. Then, the twomanipulators endoscope 24 are inserted into thebody cavity 27 of the patient 14 through thetrocars FIG. 20 , the rod-shapedmembers manipulators members - After the rod-shaped
members intermediate joints manipulator 10 c are bent, so that an organ 142 (obstacle to an operative field) is pushed aside (retracted) with the rod-shaped member 44 (link 114 inFIG. 20 ) for a wider operative field. After the wider operative field has been thus secured, the intermediate joint 60 d of the rod-shapedmember 44 d are bent and the first and secondintermediate joints - Next, an observing point of the
endoscope 24 is secured in order that images of a portion to be treated and the distal-end working units endoscope 24. Then, the operator performs a given surgical procedure on the portion to be treated, with the end effectors. In a surgical example shown inFIG. 20 , atissue 121 within thebody cavity 27 is gripped with thegripper 78, while amembranous tissue 140 near thetissue 121 is cut out with thescissors 79. - With the medical robot system according to the third embodiment, the distal-
end working units intermediate joints - Also, with the third embodiment, the
manipulator 10 c serving as a retractor performs an operation (e.g., gripping) on an affected region with the end effector provided at the distal end thereof, while themanipulator 10 c pushes aside the organ 142 (obstacle to the operative field) with the rod-shapedmember 44 having a plurality of intermediate joints. In this manner, onemanipulator 10 c doubles as a forceps and a retractor. As a result, a surgical procedure can be performed using a smaller number of manipulators. Also, the trocar for a retractor can be omitted, and thus a much less-invasive surgery can be achieved. - Although certain preferred embodiments of the present invention have been shown and described in detail, it should be understood that various changes and modifications may be made therein without departing from the scope of the appended claims.
Claims (13)
1. A medical manipulator comprising:
a rod-shaped member housing therein a first flexible member actuatable by a first actuator and a second flexible member actuatable by a second actuator, said rod-shaped member being flexible at least partly;
at least one distal-end joint disposed on a distal end of said rod-shaped member, said distal-end joint being angularly movable by a rotor around which said first flexible member is wound; and
at least one intermediate joint disposed on said rod-shaped member more closely to a proximal end thereof than said distal-end joint, said intermediate joint being bendable in response to back-and-forth movement of said second flexible member.
2. A medical manipulator according to claim 1 , wherein said rod-shaped member includes at least one guide plate having a hole defined therein through which said first flexible member extends.
3. A medical manipulator according to claim 1 , which is connected to a robot arm, wherein said robot arm is controlled to insert said rod-shaped member through a trocar into a body cavity and to move back and forth and tilt said rod-shaped member with respect to said trocar.
4. A medical manipulator according to claim 1 , wherein said intermediate joint includes a first intermediate joint and a second intermediate joint which are successively arranged from the distal end of said rod-shaped member;
said first intermediate joint is disposed in a position within a range from 3 cm to 5 cm from the distal end of said rod-shaped member; and
said second intermediate joint is disposed in a position within a range from 7 cm to 15 cm from the distal end of said rod-shaped member.
5. A medical robot system comprising:
a plurality of first robot arms supporting respective manipulators thereon;
a second robot arm supporting an endoscope thereon; and
a controller for controlling said first robot arms and said second robot arm;
each of said manipulators including a rod-shaped member for insertion through a trocar into a body cavity, and a distal-end working unit mounted on a distal end of said rod-shaped member and having at least one joint;
wherein at least one of said manipulators comprises a retractor and has at least one intermediate joint disposed in said rod-shaped member for bending said rod-shaped member.
6. A medical robot system according to claim 5 , wherein said retractor coacts with one of said first robot arms connected thereto in a predetermined operation mode for moving said distal-end working unit back and forth while keeping a posture of the distal-end working unit constant, in a coordinate system based on the posture of said distal-end working unit.
7. A medical robot system according to claim 5 , wherein said retractor coacts with one of said first robot arms connected thereto in a predetermined operation mode for bending said intermediate joint while keeping a position and a posture of said distal-end working unit constant.
8. A medical robot system according to claim 7 , further comprising:
rotary input means for moving said intermediate joint on a hypothetical sphere or a hypothetical arc around a predetermined reference point on said rod-shaped member, depending on an angular amount by which and a direction in which said rotary input means is angularly moved.
9. A medical robot system according to claim 8 , wherein said rotary input means comprises a trackball.
10. A medical robot system according to claim 8 , further comprising:
a switch for selectively enabling and disabling said rotary input means.
11. A medical robot system comprising:
a plurality of first robot arms supporting respective manipulators thereon;
a second robot arm supporting an endoscope thereon; and
a controller for controlling said first robot arms and said second robot arm;
said manipulators and said endoscope being inserted into a body cavity through a common trocar supporting member,
wherein each of said manipulators includes a rod-shaped member for insertion through said trocar supporting member into said body cavity, a distal-end working unit mounted on a distal end of said rod-shaped member and having at least one joint, and at least one intermediate joint disposed in said rod-shaped member for bending said rod-shaped member.
12. A medical robot system according to claim 11 , wherein at least one of said manipulators serves as a retractor, and said rod-shaped member of said at least one manipulator serving as the retractor includes a plurality of said intermediate joints.
13. A medical robot system according to claim 11 , further comprising:
a monitor for displaying an image captured with said endoscope;
first input means which is operated by the left hand of an operator; and
second input means which is operated by the right hand of said operator,
wherein, when said rod-shaped members of two of said manipulators intersect with each other at said trocar supporting member, said manipulator that is located on the left side on a screen of said monitor is operated based on input operation by said first input means, and said manipulator that is located on the right side on said screen of said monitor is operated based on input operation by said second input means.
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Cited By (64)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120065470A1 (en) * | 2010-09-14 | 2012-03-15 | The Johns Hopkins University | Robotic system to augment endoscopes |
WO2012109598A3 (en) * | 2011-02-10 | 2013-11-14 | Sherwinter Danny A | Laparoscopic retractor |
US20140257329A1 (en) * | 2013-03-08 | 2014-09-11 | Samsung Electronics Co., Ltd. | Control methods of single-port surgical robot |
WO2014160086A2 (en) * | 2013-03-14 | 2014-10-02 | Board Of Regents Of The University Of Nebraska | Methods, systems, and devices relating to robotic surgical devices, end effectors, and controllers |
US20150031953A1 (en) * | 2012-02-29 | 2015-01-29 | M.S.T. Medical Surgery Technologies Ltd. | Manual control system for maneuvering an endoscope |
US8968332B2 (en) | 2006-06-22 | 2015-03-03 | Board Of Regents Of The University Of Nebraska | Magnetically coupleable robotic surgical devices and related methods |
US8968267B2 (en) | 2010-08-06 | 2015-03-03 | Board Of Regents Of The University Of Nebraska | Methods and systems for handling or delivering materials for natural orifice surgery |
US8974440B2 (en) | 2007-08-15 | 2015-03-10 | Board Of Regents Of The University Of Nebraska | Modular and cooperative medical devices and related systems and methods |
US9010214B2 (en) | 2012-06-22 | 2015-04-21 | Board Of Regents Of The University Of Nebraska | Local control robotic surgical devices and related methods |
US9060781B2 (en) | 2011-06-10 | 2015-06-23 | Board Of Regents Of The University Of Nebraska | Methods, systems, and devices relating to surgical end effectors |
CN104783846A (en) * | 2015-01-22 | 2015-07-22 | 天津手智医疗科技有限责任公司 | Surgery operational method by adopting intelligentized minimally invasive surgery instrument |
US9089353B2 (en) | 2011-07-11 | 2015-07-28 | Board Of Regents Of The University Of Nebraska | Robotic surgical devices, systems, and related methods |
US9179981B2 (en) | 2007-06-21 | 2015-11-10 | Board Of Regents Of The University Of Nebraska | Multifunctional operational component for robotic devices |
EP2822445A4 (en) * | 2012-03-07 | 2015-12-16 | Mst Medical Surgery Technologies Ltd | Overall endoscopic control system |
US20160192827A1 (en) * | 2012-12-20 | 2016-07-07 | avateramedical GmBH | Endoscope Comprising a System with Multiple Cameras for Use in Minimal-Invasive Surgery |
US9403281B2 (en) | 2003-07-08 | 2016-08-02 | Board Of Regents Of The University Of Nebraska | Robotic devices with arms and related methods |
US9498292B2 (en) | 2012-05-01 | 2016-11-22 | Board Of Regents Of The University Of Nebraska | Single site robotic device and related systems and methods |
US20160345807A1 (en) * | 2014-02-13 | 2016-12-01 | Olympus Corporation | Manipulator and manipulator system |
US9579088B2 (en) | 2007-02-20 | 2017-02-28 | Board Of Regents Of The University Of Nebraska | Methods, systems, and devices for surgical visualization and device manipulation |
WO2017098264A1 (en) * | 2015-12-10 | 2017-06-15 | Cambridge Medical Robotics Ltd | Drive assembly interface |
US9770305B2 (en) | 2012-08-08 | 2017-09-26 | Board Of Regents Of The University Of Nebraska | Robotic surgical devices, systems, and related methods |
CN107374733A (en) * | 2017-07-31 | 2017-11-24 | 成都中科博恩思医学机器人有限公司 | One kind operation chassis |
US9833254B1 (en) * | 2014-10-03 | 2017-12-05 | Verily Life Sciences Llc | Controlled dissection of biological tissue |
CN107683120A (en) * | 2015-07-09 | 2018-02-09 | 川崎重工业株式会社 | Operation manipulator |
US9888966B2 (en) | 2013-03-14 | 2018-02-13 | Board Of Regents Of The University Of Nebraska | Methods, systems, and devices relating to force control surgical systems |
US9956043B2 (en) | 2007-07-12 | 2018-05-01 | Board Of Regents Of The University Of Nebraska | Methods, systems, and devices for surgical access and procedures |
USD822735S1 (en) * | 2017-03-17 | 2018-07-10 | Donald Dimattia, Jr. | Positionable end effector link |
US10085806B2 (en) * | 2012-05-09 | 2018-10-02 | DEUTSCHES ZENTRUM FüR LUFT-UND RAUMFAHRT E.V. | Minimally invasive instrument for robotic surgery |
EP3311729A4 (en) * | 2015-06-16 | 2019-02-06 | Olympus Corporation | Joint ring and medical manipulator |
US10335024B2 (en) | 2007-08-15 | 2019-07-02 | Board Of Regents Of The University Of Nebraska | Medical inflation, attachment and delivery devices and related methods |
US10342561B2 (en) | 2014-09-12 | 2019-07-09 | Board Of Regents Of The University Of Nebraska | Quick-release end effectors and related systems and methods |
US10376322B2 (en) | 2014-11-11 | 2019-08-13 | Board Of Regents Of The University Of Nebraska | Robotic device with compact joint design and related systems and methods |
US10441132B2 (en) * | 2013-12-05 | 2019-10-15 | Olympus Corporation | Method of controlling endoscopes, and endoscope system |
US10582973B2 (en) | 2012-08-08 | 2020-03-10 | Virtual Incision Corporation | Robotic surgical devices, systems, and related methods |
EP3620128A1 (en) * | 2012-06-01 | 2020-03-11 | Intuitive Surgical Operations Inc. | Multi-port surgical robotic system architecture |
US10653489B2 (en) | 2015-05-11 | 2020-05-19 | Covidien Lp | Coupling instrument drive unit and robotic surgical instrument |
US10667883B2 (en) | 2013-03-15 | 2020-06-02 | Virtual Incision Corporation | Robotic surgical devices, systems, and related methods |
US10667877B2 (en) | 2015-06-19 | 2020-06-02 | Covidien Lp | Controlling robotic surgical instruments with bidirectional coupling |
US10702347B2 (en) | 2016-08-30 | 2020-07-07 | The Regents Of The University Of California | Robotic device with compact joint design and an additional degree of freedom and related systems and methods |
US20200229879A1 (en) * | 2019-01-23 | 2020-07-23 | Siemens Healthcare Gmbh | Medical engineering robot, medical system, method for operation thereof, computer program, and storage medium |
US10722319B2 (en) | 2016-12-14 | 2020-07-28 | Virtual Incision Corporation | Releasable attachment device for coupling to medical devices and related systems and methods |
CN111529067A (en) * | 2020-05-29 | 2020-08-14 | 哈尔滨思哲睿智能医疗设备有限公司 | Positioning device and positioning method for mechanical arm of surgical robot |
US10751136B2 (en) | 2016-05-18 | 2020-08-25 | Virtual Incision Corporation | Robotic surgical devices, systems and related methods |
WO2020188390A1 (en) * | 2019-03-15 | 2020-09-24 | Ethicon Llc | Input controls for robotic surgery |
US10806538B2 (en) | 2015-08-03 | 2020-10-20 | Virtual Incision Corporation | Robotic surgical devices, systems, and related methods |
CN111885979A (en) * | 2018-02-07 | 2020-11-03 | 迪斯透莫森公司 | Surgical robotic system including robotic telemanipulator and integrated laparoscopy |
US20200409477A1 (en) * | 2019-06-27 | 2020-12-31 | Intuitive Surgical Operations, Inc. | System and method for motion mode management |
US10966700B2 (en) | 2013-07-17 | 2021-04-06 | Virtual Incision Corporation | Robotic surgical devices, systems and related methods |
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Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105101905B (en) * | 2013-03-29 | 2017-08-04 | 奥林巴斯株式会社 | master-slave system |
WO2016164824A1 (en) * | 2015-04-09 | 2016-10-13 | Auris Surgical Robotics, Inc. | Surgical system with configurable rail-mounted mechanical arms |
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US11389360B2 (en) * | 2016-09-16 | 2022-07-19 | Verb Surgical Inc. | Linkage mechanisms for mounting robotic arms to a surgical table |
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WO2018081931A1 (en) * | 2016-11-01 | 2018-05-11 | Bio-Medical Engineering (HK) Limited | Surgical robotic devices and systems for use in performing minimally invasive and natural orifice transluminal endoscopic surgical actions |
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EP3740152A4 (en) | 2018-01-17 | 2021-11-03 | Auris Health, Inc. | Surgical platform with adjustable arm supports |
DE102019007290A1 (en) * | 2019-10-21 | 2021-04-22 | Karl Storz Se & Co. Kg | Sensor-based surgery set and procedure |
USD1022197S1 (en) | 2020-11-19 | 2024-04-09 | Auris Health, Inc. | Endoscope |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6331181B1 (en) * | 1998-12-08 | 2001-12-18 | Intuitive Surgical, Inc. | Surgical robotic tools, data architecture, and use |
US6889116B2 (en) * | 2000-09-29 | 2005-05-03 | Kabushiki Kaisha Toshiba | Manipulator |
US20080065100A1 (en) * | 2006-06-13 | 2008-03-13 | Intuitive Surgical, Inc. | Minimally invasive surgical instrument system |
US20080262480A1 (en) * | 2007-02-15 | 2008-10-23 | Stahler Gregory J | Instrument assembly for robotic instrument system |
US7608083B2 (en) * | 2001-02-15 | 2009-10-27 | Hansen Medical, Inc. | Robotically controlled medical instrument with a flexible section |
US7930065B2 (en) * | 2005-12-30 | 2011-04-19 | Intuitive Surgical Operations, Inc. | Robotic surgery system including position sensors using fiber bragg gratings |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3419869B2 (en) | 1993-12-28 | 2003-06-23 | オリンパス光学工業株式会社 | Medical equipment |
JP2843507B2 (en) | 1994-08-09 | 1999-01-06 | 三鷹光器株式会社 | Articulated instrument holding arm |
JP3191092B2 (en) | 1997-09-26 | 2001-07-23 | 技術研究組合医療福祉機器研究所 | Guide manipulator and work support device |
JP3631450B2 (en) | 2001-08-22 | 2005-03-23 | 株式会社東芝 | manipulator |
JP2008188113A (en) | 2007-02-01 | 2008-08-21 | Olympus Corp | Operational field securing device |
JP4891823B2 (en) | 2007-03-29 | 2012-03-07 | オリンパスメディカルシステムズ株式会社 | Endoscope device |
JP2008237812A (en) | 2007-03-29 | 2008-10-09 | Olympus Medical Systems Corp | Multi-joint bending mechanism and medical instrument with multi-joint bending mechanism |
-
2010
- 2010-06-23 US US12/821,716 patent/US20100262162A1/en not_active Abandoned
-
2013
- 2013-02-07 US US13/761,824 patent/US20130150866A1/en not_active Abandoned
- 2013-07-25 US US13/950,382 patent/US9173548B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6331181B1 (en) * | 1998-12-08 | 2001-12-18 | Intuitive Surgical, Inc. | Surgical robotic tools, data architecture, and use |
US6889116B2 (en) * | 2000-09-29 | 2005-05-03 | Kabushiki Kaisha Toshiba | Manipulator |
US7608083B2 (en) * | 2001-02-15 | 2009-10-27 | Hansen Medical, Inc. | Robotically controlled medical instrument with a flexible section |
US7930065B2 (en) * | 2005-12-30 | 2011-04-19 | Intuitive Surgical Operations, Inc. | Robotic surgery system including position sensors using fiber bragg gratings |
US20080065100A1 (en) * | 2006-06-13 | 2008-03-13 | Intuitive Surgical, Inc. | Minimally invasive surgical instrument system |
US20080262480A1 (en) * | 2007-02-15 | 2008-10-23 | Stahler Gregory J | Instrument assembly for robotic instrument system |
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US11717358B2 (en) * | 2019-01-23 | 2023-08-08 | Siemens Healthcare Gmbh | Medical engineering robot, medical system, method for operation thereof, computer program, and storage medium |
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US20200409477A1 (en) * | 2019-06-27 | 2020-12-31 | Intuitive Surgical Operations, Inc. | System and method for motion mode management |
US11880513B2 (en) | 2019-06-27 | 2024-01-23 | Intuitive Surgical Operations, Inc. | System and method for motion mode management |
US11625107B2 (en) * | 2019-06-27 | 2023-04-11 | Intuitive Surgical Operations, Inc. | System and method for motion mode management |
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US20130310639A1 (en) | 2013-11-21 |
US9173548B2 (en) | 2015-11-03 |
US20130150866A1 (en) | 2013-06-13 |
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