WO2010082722A1

WO2010082722A1 - Multi-channel trocar with an attachable/detachable sealing member

Info

Publication number: WO2010082722A1
Application number: PCT/KR2009/006111
Authority: WO
Inventors: 홍두표
Original assignee: (주)다림써지넷
Priority date: 2009-01-16
Filing date: 2009-10-22
Publication date: 2010-07-22
Also published as: KR100909672B1

Abstract

The present invention relates to a trocar which makes a small puncture in the abdominal wall of a patient to perform laparoscopic surgery without making an abdominal incision. More particularly, the present invention relates to a multi-channel trocar having an attachable/detachable sealing member, in which one trocar can be equipped with various types of surgical instruments to perform laparoscopic surgery with a minimized abdominal incision and relieve the cost burden on the patient, and in which the sealing member for preventing the inflow/outflow of air to/from the trocar is attachable/detachable to/from the trocar such that the sealing member is removed from the trocar of the present invention and used in a conventional trocar in the event the condition of the patient worsens, requiring a plurality of incisions to be made at the abdomen of the patient and a plurality of conventional trocars (which enables only one surgical instrument to be inserted into one trocar) to be used. The multi-channel trocar having the attachable/detachable sealing member according to the present invention comprises: a main body having an upper part with a plurality of mounting portions and an open lower part; a cannula which is coupled to the lower part of the main body to close the opening of the lower part, and inserted into the abdomen of the patient; and a plurality of sealing members which are removably fitted to the mounting portions of the main body, and seal the outer circumference of the laparoscopic surgical instrument inserted into the trocar to prevent the inflow/outflow of air to/from the trocar.

Description

Multichannel trocar with detachable sealing member

The present invention relates to a trocar that supports laparoscopic surgery by opening a small hole without opening the stomach of the patient,

More specifically, it is possible to minimize the incision site of the patient's abdomen by using various types of surgical instruments in one trocar and to reduce the patient's cost by using a small number of trocars.

The sealing member, which seals the outer periphery of the surgical instrument inserted through the trocar and prevents the internal air from leaking out, can be detached and detached from the trocar. In a situation where a car (that is, a trocar into which only one surgical instrument is inserted) is to be used, the sealing member is detachable from the trocar of the present invention and has a detachable sealing member that can be mounted and used on an existing trocar. A multichannel trocar.

Laparoscopic surgery is a method of drilling a small hole in the abdomen of the patient and observing the inside of the abdominal cavity through the hole, and is widely used for gallbladder resection, appendectomy, stone removal, and general surgery.

In conventional laparoscopic surgery, several holes are drilled in the abdomen, a trocar is inserted into each hole, and a surgical instrument such as an endoscope, a gas injector, a laser generator, a cutter, etc. is inserted into each trocar and the inside is observed. The operation was performed.

That is, the conventional trocar has a single channel structure in which only one surgical instrument is inserted through one trocar.

Laparoscopic surgery requires at least three surgical instruments. The first is a laparoscopic forcep to hold tissue during surgery, the second is an endoscope for the doctor to observe the inside of the abdominal cavity, and the third is a therapeutic device (eg, a laser generator, an ultrasound generator) to directly treat the affected part of the patient. , Cutters, etc.).

Therefore, in order to perform laparoscopic surgery using a conventional trocar, in which a trocar and a surgical instrument are combined one-to-one, multiple holes must be drilled in the abdomen of a patient. This damages the patient's skin as much, and the use of multiple trocars is a burden on the patient.

The present invention has been made to solve the above problems, to minimize the damage to the patient's skin by reducing the number of patient's skin damage by reducing the cost of the patient and the material cost of the hospital by allowing a plurality of surgical instruments can be inserted through a single trocar To do it,

In addition, the sealing member, which constitutes the core of the trocar, is made detachable, so that the patient's condition is deteriorated, and inevitably, a plurality of existing single channel trocars in which the trocar and surgical instruments are combined in one-to-one laparoscope are used. In case of surgery, the sealing member mounted on the multi-channel trocar of the present invention can be detached and mounted on the existing single-channel trocar to be used, thereby having a plurality of detachable sealing members that can reduce the patient's cost. The purpose is to provide a multichannel trocar.

Multi-channel trocar having a removable sealing member of the present invention for achieving the above object

main body;

A bushing coupled to the lower body and inserted into the abdomen of the patient;

It is detachably mounted to the main body, sealing member for sealing the outer periphery of the laparoscopic surgical instruments inserted through to block the outflow of air;

And the upper portion of the main body is characterized in that the sealing member is provided with a plurality of mounting portion detachably coupled,

In addition, the main body is

A body having a space penetrating up and down, and wherein the bushing is coupled to the lower portion;

A soft mounting member having the plurality of mounting portions,

And a close cover configured to press the edge of the mounting member to the upper edge of the body to be tightly coupled.

The upper outer periphery of the body is formed with a plurality of communication holes in communication with the space, the outer periphery of the body below the communication hole, the support portion is formed to protrude in an annular shape,

The main body includes a gas inlet and a gas outlet, and further includes a valve member inserted into the outer periphery of the body to be rotatably mounted on the support,

It is characterized in that the injection amount and discharge of the gas is adjusted step by step according to the difference in the size of the diameter of the communication holes and the position change of the inlet and outlet according to the rotation of the valve member,

The main body

An isolation member provided between the valve member and the body to spatially separate the inlet and outlet;

Further comprising a filter member for filtering the gas discharged through the outlet of the valve member,

The bushing is

The inner diameter is gradually longer while going up and down from the center,

The shape is changed by external force, made of elastic material with restoring force,

At the top and the bottom is provided with a ring member for maintaining the shape, respectively

The lower inner surface is characterized in that the gripping portion for projecting the separation from the abdomen after laparoscopic surgery is formed,

At least one sealing member of the plurality of sealing members is characterized in that the diameter is different from the other sealing member.

The present invention having the configuration as described above can use a variety of surgical instruments with only one multi-channel trocar can minimize the number of abdominal incision site of the patient, also reduce the medical cost burden of the patient, the hospital side Again, fewer trocars can be used to reduce material costs.

And due to the sealing member of the detachable structure as in the present invention, if an unexpected situation occurs during the procedure by separating only the sealing member to be used in the existing single-channel trocar, further increase the effect of cost reduction and material cost reduction Can be.

In addition, the multi-channel trocar of the present invention has a trocar structure of the trocar using the characteristics of the navel tissue in the treatment site of the patient, thereby obtaining a trocar having a simple structure, thereby reducing the manufacturing cost. .

1 is a perspective view of a combined multi-channel trocar according to the present invention.

2 is an exploded perspective view of FIG.

3 is a partial cutaway perspective view of the bushing;

4 and 5 are a partially cutaway perspective view and an exploded perspective view of the main body.

6 and 7 are a partially cutaway perspective view and an exploded perspective view of the sealing member.

8 and 9 are combined and exploded perspective views of the single channel trocar.

100: body 110: body

120: mounting member 130: close cover

140: valve member 150: isolation member

160: filter member 200: bushing

300: sealing member 310: upper body

320: shape holding member 330: sealing member

340: lower body 600: single channel trocar

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is a combined perspective view of a multi-channel trocar according to the present invention, FIG. 2 is an exploded perspective view of FIG. 1, FIG. 3 is a partially cutaway perspective view of a bushing, and is a partially cutaway perspective view and an exploded perspective view of the main body of FIGS. 6 and 7 are partial cutaway perspective views and exploded perspective views of the sealing member;

1 and 2, the trocar of the present invention seals the trocar 200 inserted into the abdomen of the patient and the outer periphery of the surgical instrument inserted therethrough, thereby preventing a plurality of air from leaking into and out of the abdominal cavity. It comprises a sealing member 300, the body 100 for connecting the bushing 200 and the sealing member 30.

As shown in FIG. 3, the bushing 200 has a short inner shape of the center and gradually increases in length as it goes up and down, and upper and

lower ring members

210 and 220 are respectively coupled to maintain their shape. A grip portion 230 protrudes from an inner surface of the lower portion. Thus, the upper part is coupled with the main body 100 and the lower part is inserted into the patient's abdomen to prevent departure.

The bushing 200 is inserted into the navel of the abdomen of the patient. It is preferable that the trocar of the present invention is inserted into the navel of the patient's abdomen having softness compared to other tissues, considering that the procedure is performed by inserting a plurality of surgical instruments. This is because it has the advantage of not displaying the incision afterwards.

And the bushing 200 should be inserted into the small hole that is cut into the abdomen of the patient, so that the diameter (especially the diameter of the lower) has a soft material so as to reduce the external force, but after being inserted into the abdominal hole is easily removed In order to provide a working environment of surgical instruments that are inserted into the abdomen inner skin and then inserted for the procedure, it has an elastic material that is restored to a circular shape without external force being applied. Soft silicone or natural rubber may be used as a material having such characteristics.

And ring members (210, 220) are provided at the top and bottom of the bushing, respectively, the bushing is more firmly coupled to the main body 100, so as not to be easily detached from the abdomen of the patient, so as not to deform the shape of the bushing even after long-term use. .

And the grip portion 220 provided on the lower inner surface of the bushing is used to separate the bushing 200 from the abdomen of the patient after the surgery is completed.

That is, when the operation is completed, the main body 100 is separated from the bushing 200, and the finger is put into the bushing to grasp the grip 220, or the hook is put into the bushing and pulled on the grip 220 to pull the bushing. Separate from the abdomen. By removing the trocar in this manner, the trocar can be easily separated while minimizing irritation to the patient's abdominal skin during the trocar removal process.

The gripping portion 220 is provided on the inner surface of the lower portion of the bushing 200 so that the gripping portion 220 is not in contact with the surgical instrument during the surgical procedure and does not disturb the operation.

As shown in FIGS. 4 and 5, the main body 100 includes a body 110, a mounting member 120, a close cover 130, a valve member 140, an isolation member 150, and a filter member 160. It is made, including, the bushing 200 is coupled to the bottom, the sealing member 300 is mounted on the top.

The body 110 has a space 111 penetrating up and down,

A coupling groove 117 to which the bushing 200 is coupled is formed in the lower portion in an annular shape,

The support portion 113 on which the valve member 140 is mounted and supported is protruded from the coupling groove 117.

The communication part 112 is connected to the inlet 141 and the outlet 142 of the valve member 140 and communicates with the space 111 on the support part 113.

The communication holes 112 have different diameters, such that the amount of gas injected through the inlet 141 and the outlet 142 as the valve member 140 is supported by the support 113 and rotates in stages. The amount of gas discharged through) can be adjusted step by step.

A step groove 114 into which the step protrusion 144 protruding from the bottom surface of the valve member 140 is inserted into and coupled to an upper surface of the support part 113 so that the valve member 140 can be rotated step by step. Many are formed at regular intervals.

The filter member 160 is inserted and seated on the upper portion of the body 110 so that the filter member 160 is disposed on the communication hole 112 connected to the outlet 142 of the valve member 140. The seating portion 116 is formed,

A plurality of coupling pin holes 115 are inserted into the coupling pin 135 protruding from the lower portion of the close cover 130 is formed.

The mounting member 120 includes a plurality of mounting portions 121 on which the plurality of sealing members 300 are mounted, and is more closely attached to the sealing member 300 and the body 110 so that the gas does not leak through the gap. It is made of material.

In addition, the inner surface of each mounting portion 121 is provided with a locking stepped portion 122 to which the locking protrusion 342 is formed at the lower portion of the sealing member 300, and the close cover of the mounting member 120 A plurality of coupling pin holes 125 through which the coupling pin 135 of the 130 is inserted are formed.

The close cover 130 is coupled to the body 110 by pressing the mounting member 120,

While pressing the edge of the mounting member 120 has an opening 131 in the center to expose the mounting portion 121, the lower surface penetrates the coupling pin hole 125 of the mounting member 120 and the body 110 The coupling pin 135 is inserted into the coupling pin hole 125 of the protrusion is formed.

The valve member 140 has an inlet 141 through which gas is injected from the outside, and an outlet 142 through which gas inside is discharged.

The inner surface is provided with a catching piece 143 is caught by the isolation member 150 to spatially isolate the inlet 141 and the outlet 142,

Step projections (144) are formed on the lower surface to adjust the rotational angle of the valve member (140) step by step to adjust the injection amount and discharge of the gas step by step.

As the valve member 140 is rotated in stages, the inlet 141 and the outlet 142 are blocked (connected) or not connected to the communication hole 112, respectively, and are connected when connected to the communication hole 112, respectively. By varying the diameter of the communication hole 112 to adjust the amount of gas injected or discharged in stages.

That is, only gas can be injected, only gas can be discharged, or gas can be injected and discharged at the same time, and the amount of gas can be controlled at the time of gas injection and discharge.

The isolation member 150 is disposed between the body 110 and the valve member 140 to isolate the inlet 141 and the outlet 142.

That is, the gas injected from the inlet 141 flows through the space between the body 110 and the valve member 140 to be discharged to the outlet 142 or vice versa to the inlet 141. The space between the body 110 and the valve member 140 is blocked so as not to be introduced.

To this end, the isolation member 150 includes a plurality of isolation portions 151 and a plurality of communication portions 153, and the engaging portion 143 of the valve member 140 is inserted into the communication portion 153. Combined.

The isolation member 150 rotates together with the valve member 140, and one communication unit 153 communicates with the inlet 141, and another communication unit 153 communicates with the outlet 142. do. In addition to the communicating portion 153 in communication with the inlet 141 and the outlet 142, the more communicating portion 153 is provided to enhance the effect of space isolation.

The filter member 160 is inserted and seated in the filter seating portion 116 of the body 110 and is disposed on the communication holes 112 connected to the outlet 142 among the communication holes 112. Thus, noxious components are removed from the emitted gases. The drawing does not show the filter net which directly removes harmful components.

6 and 7, the sealing member 300 includes an upper body 310 and a lower body 340, a sealing member 330, and a shape maintaining member 320. A plurality of having various sizes (diameters) to fit the diameter of the main body 100 is detachably mounted to the mounting member 120.

The upper body 310 and the lower body 340 are combined to form a receiving space in which the sealing member 330 and the shape maintaining member 320 is accommodated, and the sealing member 330 of the surgical instrument inserted through The outer circumference surrounds the gas so that the gas does not flow out through the sealing member 300, and the shape maintaining member 320 has a shape in which the sealing member 330, which is in contact with the continuously moving surgical instrument, moves in accordance with the operation of the surgical instrument. The shape of the sealing member 330 is prevented from being deformed so as not to be deformed to form a gap with the surgical instrument.

A plurality of fixing pins 311 are formed on the lower surface of the upper body for coupling the upper body 310 and the lower body 340, and the fixing pins 311 are formed on the upper surface of the lower body 340. ) Is provided with a plurality of fixing pin holes 341 are inserted.

In addition, the lower protrusion 342 is formed at the lower portion of the lower body 340 to be inserted into the mounting portion 121 of the mounting member 120 and to be caught by the locking step jaw portion 122. A locking portion 343 that is caught on the upper surface of the 121 is formed.

The lower body 340 is tightly coupled to the mounting portion 121 to prevent the outflow of gas through the gap, it is preferably made of a soft material so as to be separated from the mounting portion 121 by an external force.

The sealing member 330 is made of a soft material such as silicone or natural rubber to closely wrap the outer periphery of the surgical instrument to be inserted through,

The center portion is formed in a shape having a smaller inner diameter than the upper portion and the lower portion, a close contact portion 331 which wraps close to the outer circumference of the inserted surgical nose, and is provided at the upper and lower ends of the close contact portion 331 to the shape-retaining member 320. It consists of a flat portion 333 supported by.

The shape maintaining member 320 is formed in a cylindrical shape and the sealing member 330 is inserted, the operation is moved in contact by supporting the inner surface of the flat portion 333 provided in the upper and lower portions of the inserted sealing member 330 The mechanism prevents deformation such as the sealing member 330 from crushing.

When a patient is inserted into a multi-channel trocar according to the present invention and a patient is operated, an unexpected situation occurs and the patient's abdomen must be incised and a plurality of single-channel trocars are required. Only the sealing member in the invention is removed and mounted on a single channel trocar to perform the procedure.

8 and 9 illustrate a perspective view and an exploded perspective view according to an example of the single channel trocar in which the sealing members separated in the multi-channel trocar of the present invention are coupled in a one-to-one manner.

The single channel trocar 600 shown in Figs. 8 and 9 is a bigo that reveals that it is another invention by the present applicant, not a known trocar, and the names of each component are the names used in the multi channel trocar according to their function. The components described in the multi-channel trocar and the components performing finite functions are briefly described.

The single channel trocar 600 has an injection tube 610, a body 620, a valve member 630, a filter member 670, a cap 640, and an upper fixing member as shown in FIGS. 8 and 9. 650) and the lower fixing member 660, the sealing member 300 separated from the multi-channel trocar is coupled to the upper fixing member 650 and the lower fixing member 660 to the body 620 It is placed inside.

The inlet tube 610 is inserted into the abdomen of the patient to guide the surgical instrument to be inserted into the patient abdomen, and the sucker shape projection 611 to increase the adhesion so that it is not easily separated from the inserted patient abdomen in the outer peripheral section Many are formed.

The body 620 is the inlet pipe 610 is connected to the bottom, the cap 640 is coupled to the top. A valve member 630 is inserted into and coupled to the upper outer circumference stepwise to adjust the injection amount and the discharge amount of the gas, and a lower fixing member 660 is provided at the inner lower portion thereof to fix and seal the sealing member 300.

And at the outer periphery of the central portion of the body 620 into which the valve member 630 is inserted is formed a support portion 621 on which the lower surface of the valve member 630 is supported.

A plurality of communication holes 625 are formed in the upper portion and communicate with the inside of the body, and the communication holes 625 vary in diameter and are connected to the inlet 631 and the outlet 633 of the valve member.

In addition, a plurality of step grooves 627 are formed in the support part 621 to adjust the rotational angle of the valve member 630 step by step to adjust the injection amount and discharge amount of the gas. The step groove 627 is coupled to the step protrusion 637 protruding from the lower surface of the valve member 630.

In addition, a filter member 670 is disposed in the communication hole 625 communicating with the discharge port 633 to remove harmful components of the discharged gas, and a filter seat 629 in which the filter member 670 is seated is disposed inside the body. Formed.

And the upper portion of the body 'b' shaped detachable groove 623 is formed so that the detachable protrusion 645 protruding on the inner surface of the cap 640 is horizontally moved after the vertical movement is detachably coupled.

The valve member 630 has an injection port 631 through which gas is injected and a discharge port 633 through which gas is discharged, and a step protrusion 637 coupled to the step groove 627 of the body 620 is provided at a lower surface of the valve member 630. Formed,

It is inserted into and coupled to the upper outer periphery of the body 620, and the cap 640 is coupled to cover the opening of the upper portion.

The lower fixing member 660 is fixed to the inside of the body 620 and in communication with the inlet pipe 610.

In the center, a through hole 661 is formed to be connected to the sealing member and the surgical instrument is inserted therethrough, and the inner wall forming the through hole is inclined to be in close contact with the lower outer surface of the sealing member.

Next, the through hole 661 is formed with a moving hole 663 connected to the inlet tube 610 to allow gas to move between the abdomen and the inner space of the body. A fixing hole 665 for fixing is formed.

The upper fixing member 650 includes an insertion part 651 into which the protrusion 643 protruding from the cap 640 is inserted and fixed, and a cover part 653 covering the upper outer circumference of the sealing member 300. )

The cap 640 has an insertion hole 641 through which the surgical instrument is inserted through the top and bottom thereof, and a protrusion 643 in which the upper fixing member 650 is inserted and the insertion hole is formed in the lower inner surface thereof. ) Is formed, the lower inner wall is formed with a detachable protrusion 645 detachably coupled to the detachable groove 623 of the body 620.

In the above description of the present invention, a multi-channel trocar having a detachable sealing member having a specific shape and structure has been described with reference to the accompanying drawings, but the present invention can be variously modified and changed by those skilled in the art. And modifications should be construed as falling within the protection scope of the present invention.

Claims

A main body including a body having a space portion penetrating up and down, and a soft mounting member coupled to the upper portion of the body and having a plurality of mounting portions;

A bushing coupled to the lower body and inserted into the abdomen of the patient;

And a sealing member detachably mounted to the mounting portion of the main body and sealing the outer periphery of the laparoscopic surgical instrument inserted therethrough to block the outflow of air.
The method of claim 1, wherein the body is

The multi-channel trocar having a detachable sealing member, characterized in that it further comprises a close cover for pressing close to the edge of the mounting member to the upper edge of the body.
The method of claim 2,

The upper outer periphery of the body is formed with a plurality of communication holes in communication with the space, the outer periphery of the body below the communication hole, the support portion is formed to protrude in an annular shape,

The main body includes a gas inlet and a gas outlet, and further includes a valve member inserted into the outer periphery of the body to be rotatably mounted on the support,

Multi-channel trocar with a removable sealing member, characterized in that the injection amount and discharge of the gas is adjusted in stages according to the difference in the size of the diameter of the communication hole and the position of the inlet and outlet according to the rotation of the valve member.
The method according to any one of claims 1 to 3, wherein the bushing

The inner diameter is gradually longer while going up and down from the center,

The shape is changed by external force, made of elastic material with restoring force,

Multi-channel trocar with a detachable sealing member, characterized in that the upper and lower ring members for retaining shape, respectively.
5. The multi-channel trocar having a detachable sealing member according to claim 4, wherein a grip portion for separating the bushing from the abdomen is formed on the lower inner surface of the bushing.
The method according to any one of claims 1 to 3,

At least one sealing member of the plurality of sealing member is a multi-channel trocar having a detachable sealing member, characterized in that the diameter is different from the other sealing member.