US20060140798A1 - Infusion device - Google Patents
Infusion device Download PDFInfo
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- US20060140798A1 US20060140798A1 US11/357,105 US35710506A US2006140798A1 US 20060140798 A1 US20060140798 A1 US 20060140798A1 US 35710506 A US35710506 A US 35710506A US 2006140798 A1 US2006140798 A1 US 2006140798A1
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- United States
- Prior art keywords
- infusion
- flow rate
- setting
- door
- dose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
- G16H20/10—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients
- G16H20/17—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients delivered via infusion or injection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3375—Acoustical, e.g. ultrasonic, measuring means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/50—General characteristics of the apparatus with microprocessors or computers
- A61M2205/502—User interfaces, e.g. screens or keyboards
- A61M2205/505—Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
- A61M2205/581—Means for facilitating use, e.g. by people with impaired vision by audible feedback
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14212—Pumping with an aspiration and an expulsion action
- A61M5/14228—Pumping with an aspiration and an expulsion action with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
- A61M5/365—Air detectors
Definitions
- the present invention relates to a infusion device such as a syringe pump or a infusion pump for administering a drug to a patient, and more particularly to a infusion pump which presses a infusion tube to infuse a liquid drug.
- an operation panel is used as an user interface that includes a setting input key for setting a flow rate, a volume to be infused or various warnings and a display unit for displaying them (Japanese Patent Laid-Open No. 9-154943 and Japanese Patent Laid-Open No. 2000-300667).
- the present invention is achieved to solve the conventional problems, and has an object to provide a infusion device that is easily usable by use with high safety, and more particularly, a infusion device including a user interface capable of providing a necessary alarm to a user (a healthcase worker) to eliminate the problems in setting a dose and flow rate before a infusion and allowing the user to set the alarm condition.
- a infusion device including: a setting unit for setting a dose and a infusion flow rate, or the like; and a display unit for displaying the dose and the infusion flow rate, or the like, wherein when the infusion flow rate (mL/h) is input via the setting unit, the flow rate is increased or decreased step by step followed by a buzzer sound for each press of an input key.
- a infusion device including: a setting unit to set a dose and a infusion flow rate, or the like; and a display unit to display the dose and the infusion flow rate, or the like, wherein thresholds of the lengths of detected air is classified into two predetermined stages so that either thereof can be selected.
- a infusion device including in a door: a setting unit to set a dose and a infusion flow rate, or the like; and a display unit to display the dose and the infusion flow rate, or the like, wherein setting an input in the setting unit is prevented while the door is kept opened and/or during the start of a infusion (during a infusion operation).
- a infusion device that allows a user to set infusion conditions safely and reliably, and also the easy setup or adjustment or selection of a necessary alarm (warning) condition via a user interface including an operation panel. Further, detailed organization of the present invention will become more apparent from the following description of the best implementation of the invention and its accompanying drawings.
- FIG. 1 is an overall appearance perspective view of a infusion device according to the present invention with its door being opened;
- FIG. 2 shows an operation switch panel according to the present invention
- FIG. 3A is a perspective view of a door side sensor (a transmitting element) 31 facing a base side sensor (a receiving element) 30 ;
- FIG. 3B is a sectional view of a state where door 4 is closed to hold a infusion tube 2 ;
- FIG. 4 shows the flow of air detection according to the present invention
- FIG. 5A shows the rear surface of the infusion device 1 ;
- FIG. 5B is a perspective view of the bottom surface of the infusion device 1 ;
- FIG. 6 is a block diagram of the infusion device according to the present invention.
- FIG. 7 shows the flow of a subroutine for setting inputs according to the present invention.
- FIG. 1 is an appearance perspective view of a state where a peristaltic infusion device 1 as an example of a infusion device is secured to a infusion pole 90 with its door being opened
- FIG. 5A is a rear perspective view
- FIG. 5B is a bottom perspective view
- FIG. 6 is a block diagram.
- a flexible infusion tube 2 (see FIG. 2 ) described later is set in the infusion device.
- the infusion device is used with the door 4 being closed.
- the outline dimension of a device body excluding handle 5 provided in the upper unit and the right and left protrusions 3 a (the right one only is shown in FIG. 1 ) is about 19 cm wide, about 16 cm high, and about 16 cm deep.
- the infusion device 1 has securing fittings 91 on its a rear surface, into which a securing knob 92 is screwed so as to be secured to the infusion pole 90 as shown in FIG. 1 .
- the infusion device 1 can be secured at any height of the infusion pole 90 as required for particular use.
- the infusion device 1 has four rubber feet 93 secured to its bottom surface so that the infusion device 1 can also be used on a desk beside a patient after being removed from the infusion pole 90 .
- the device is designed so that a user (an operator such as a healthcare worker, for example, a doctor or a nurse) presses each switch with his/her thumb with the remaining fingers resting on back sides of the right and left protrusions 3 a for an easy pressing of the various switches in order to improve usability when setting (mounting) the infusion tube 2 (see FIG. 2 ).
- the right and left protrusions 3 a (the right protrusion 3 a only is shown in FIG. 1 ) are integrally molded with a body base 3 that is made of reinforced plastic or an aluminum die casting, resistant to impact and have vertically sufficient lengths as shown.
- a body facing cover 12 of the infusion device 1 has a wider width than the door 4 , and thus even if the infusion device 1 falls onto the floor, the body facing cover 12 hits the floor before the door 4 hits the floor because of the center of gravity of the infusion device 1 , thereby protecting the infusion device 1 and the door 4 from strong impact when falling.
- Two upper and lower grooves 3 m used to laterally hold the infusion tube 2 at the center of the body base 3 as shown are integrally molded, and the user vertically sets the infusion tube 2 in the grooves 3 m .
- a pump mechanism 100 is fixed in the middle of the grooves by four screws 110 attachable and detachable using a tool.
- the pump mechanism 100 includes ten fingers 10 - n individually driven by cam drive means included in the body base 3 .
- Each of the fingers 10 - n is injection molded out of thermoplastic resin such as a polyacetal resistant to chemicals.
- jaws 3 k protruding to the front in the sheet surface are integrally molded so as to surround the groove 3 m , and if a lower side surface of a below described door facing cover 12 is placed on the jaws 3 k when the door 4 including the door facing cover 12 is closed to apply any external force, the jaws 3 k receives the external force to prevent the external force from being applied to the door facing cover 12 and the door 4 in order to prevent breakage.
- a hook 59 is secured to the right side substantially in the middle of the body base 3 , and a lock unit of a door lock lever 7 rotatably provided in the door 4 is locked to the hook 59 to maintain the door 4 secured to the body base 3 .
- a occlusion sensor 62 is provided below the pump mechanism 100 , and holds the infusion tube 2 in front and back directions together with a occlusion pressure plate 69 provided in the door 4 to face the occlusion sensor 62 .
- the occlusion sensor 62 includes a permanent magnet and a pickup sensor to detect the moving distance of the permanent magnet in an analog manner, and is adapted to detect the position of the permanent magnet moved according to internal pressure changes depending on occlusion states of the infusion tube 2 .
- the occlusion pressure plate 69 does not regulate internal pressure changes of the infusion tube 2 in any directions, and thus a shown disk is held to be freely movable by a leaf (an elastic member).
- the adjustment means (selection means) 51 (see FIG. 5B ) provided at the bottom surface of the infusion device 1 can be adjusted (selected) (a plurality of stages) within 10 stages ranging from 30 to 170 kPa using a driver manipulated by a user or a serviceman for maintenance according to the manufacturer or the type of infusion tube 2 used.
- a base side sensor 30 that forms one side of the air-in sensor 30 a that transmits and receives ultrasound to detect the presence of air entering the infusion tube 2 is secured between the upper groove 3 m and the pump mechanism 100 in a chamber unit 3 h formed in the body base 3 as shown.
- a door side sensor 31 that forms the other side of the ultrasonic air-in sensor 30 a is secured to the door 4 as shown.
- the door side sensor 31 can fit into the chamber unit 3 h of the body base 3 with the door 4 being closed to hold the infusion tube 2 with the sensors from the front and back directions, thereby maintaining the infusion tube 2 immobile.
- the pump mechanism 100 and the body base 3 are substantially colored in gray, while groove parts 94 and 95 secured to upper and lower units of the pump mechanism 100 are red or orange, so that the user sets the infusion tube 2 in the grooves to correctly hold the infusion tube 2 in a predetermined position of the pump mechanism 100 .
- the door 4 is shown opened and substantially flush with a left side surface of the body base 3 .
- the door 4 is opened to a maximum angle of approximately 105 degrees with respect to the surface of the body base 3 , and stopped at this position.
- the middle opening or closing positions for the door 4 are rotatably supported by hinges 65 so as to prevent rattling.
- the hinges 65 include unshown springs.
- the body facing cover 12 specially injection molded of thermoplastic synthetic resin is provided so as to prevent surface sink or a residue of resin flow, and is detachable so as to cover four corners of the body base 3 in the infusion device 1 .
- the body facing cover 12 is detached to be easily accessible to all check spots and parts replacement spots in the infusion device 1 , thereby facilitating assembly and also maintenance and parts replacement.
- a pressure plate 70 is provided on a rear surface of the door 4 as described later.
- a flexible cable 63 is provided with part thereof being exposed as shown between the upper and lower hinges 65 and 65 for supplying power and transmitting electric signals so that the supply of power and the transmission of electric signals to the door side sensor 31 can be performed besides the operation switch panel (see FIG. 2 ).
- FIG. 5A shows the rear surface of the infusion device 1
- FIG. 5B shows its bottom surface.
- a key lock switch 52 for disabling the operation of the operation panel after the start of a infusion operation a DC connector 53 , an drip sensor connector 54 , a infusion set display changeover switch 55 , an external communication unit mounted on each board (an external communication connector) 56 , an drip sensor holder 93 c , a fuse holder, and an AC power supply connector (a receptacle), or the like are arranged.
- an external communication connector mounted on each board
- an external communication connector an external communication connector
- an LED holder 93 c a fuse holder
- an AC power supply connector a receptacle
- adjustment means (an adjustment switch) 50 that serves as both a voice guide selection means (a voice guide selection switch) and the drip number selection display means (the drip number selection switch) is provided.
- a requested voice guide can be selected from a voice IC chip 70 , and optimum voice guidance can be performed at each medical field.
- the volume of the voice guide can be set by continuously pressing the volume to be infused setting means (a volume to be infused setting switch) 9 while pressing the flow rate setting means (a flow rate setting switch) 11 that also serves as an adjustment means (setting means) so that the display on the flow rate display unit 32 is successively changed from A-1 (volume: low) to A-2 (volume: middle), A-3 (volume: high), and A-1 (volume: low) for each press of the up switch 22 c of the up-down switch 22 .
- a infusion set selection panel 8 is configured that when a infusion tube (a infusion set) 2 is not used, user can not set the drip number for the infusion.
- the adjustment means 50 may be separately provided.
- a clamp mounting screw 93 a is also provided.
- FIG. 2 shows a front view of an operation switch panel 1000 provided in a front side of the infusion device 1 in the state after the infusion tube 2 has been set (mounted) and the door 4 has been closed.
- components described above are denoted by the same numeral reference and consequently their descriptions will be omitted.
- a infusion bag 300 containing a predetermined liquid drug is hung on the infusion pole, and the most upstream side of the infusion tube 2 is connected to the infusion bag 300 .
- the middle unit of the infusion tube 2 is set in the infusion device 1 as shown, while an intravenous needle 304 is connected via a roller clamp 303 further downstream of the infusion tube 2 , and the intravenous needle 304 is punctured into the vein of a patient to infuse the liquid drug at a predetermined rate.
- the roller clamp 303 acts in the same manner as a clamp mechanism 500 (see FIG. 1 ) in the infusion device 1 , but an operation (open/close operations) of the roller clamp 303 is sometimes forgotten, which forces the user to operate the roller clamp 303 through the voice guide.
- the infusion bag 300 is hung on an unshown infusion pole (a infusion stand) to allow high accuracy infusion to a patient lying on a bed.
- the middle unit of the infusion tube 2 is temporarily set as shown, and then the door 4 is closed and locked through lever 7 to start a infusion.
- the display units of the drip number, a volume to be infused (a dose to be infused)/volume infused, and a flow rate (a infusion flow rate) display numeral by a so-called seven segments numerical.
- the operation switch panel 1000 is provided in the door 4 .
- the display units 8 , 23 and 32 for displaying the drip number, the volume to be infused/volume infused, and the flow rate are laid out in the operation switch panel 1000 so as to be easily viewable.
- the display units are color-coded so that the display unit 32 of the flow rate is an orange LED, the display unit 23 of the volume to be infused/volume infused is a green LED, and the display unit 32 of the flow rate is displayed to be larger than the display unit 23 of the volume to be infused/volume infused.
- the key panel on which the operation switches are placed and the display units 8 , 23 and 32 of the drip number, the volume to be infused/volume infused, and the flow rate are made of a transparent resin film having a back surface on which predetermined items are printed and embossed to protrude forward in a circular shape, and bonded to cover unshown included switch keys, thereby preventing the liquid drug or the like from entering the switch keys.
- the above described switch keys are mounted on a common board, and LEDs of the display units 8 , 21 , 23 , 25 , 26 , 27 , 28 , and 32 emit light so that the displays are easily viewable even when it is dark.
- the switch keys, the display units 8 , 21 , 23 , 25 , 26 , 27 , 28 , and 32 , and lamps are connected to a below described control unit via the flexible cable 63 , and power is supplied. Electric signals of control signals and drive signals are transmitted from the cable to allow the supply of power and the transmission of the electric signals of the control signals and the drive signals to perform without trouble the opening and closing operations of the door 4 including the door facing cover 12 .
- a board provided in the door 4 handles so-called TTL level electric signals only.
- a power switch 15 provided in a lower left corner in the drawing is used for turning on/off a main power supply. It turns on the power supply if being pressed for a predetermined amount of seconds (about 2 seconds) and it turns off the power supply if being pressed again for a predetermined amount of seconds (about 3 seconds or more), which prevents the power supply from being accidentally turned on/off.
- a battery lamp 16 on the right of the power switch 15 includes a green light emitting diode to indicate the three stages as shown. It also lights up when an AC power supply or a dedicated DC power supply is connected irrespective of the on/off state of the power supply to indicate that a battery is being charged.
- the battery lamp 16 indicates the amount of charge during the charging and the remaining amount during use of the built-in battery with the LED.
- an AC/DC lamp 17 lights up only when a commercial power supply or a DC power supply is used and the power supply is on.
- a stop and silence switch 18 that is pressed during the infusion to cause a built-in buzzer to sound in order to stop the infusion is provided above the AC/DC lamp 17 .
- the stop and silence switch 18 can be pressed while the warning sound (the buzzer) is emitted to silence the sound. Also, when in a state of being ready for the infusion the stop and silence switch 18 is continuously pressed for predetermined seconds (about 2 seconds), a mode is changed to standby mode.
- an alarm state for a caution against forgetting to start is released. This can prevent the alarm (the buzzer) from being generated during the time between completion of the puncture of a needle into a patient and the start of the infusion, for example, in an operating room.
- the alarm (the buzzer sound) is generated after predetermined minutes (about 20 minutes) to urge the user to start the infusion.
- a stop display lamp 21 having a diode that emits an orange light blinking during a stop is provided in association with the stop and silence switch 18 so as to be surrounded by the same frame.
- a start switch 19 is provided on the right of the stop and silence switch 18 .
- the start switch 19 is pressed to cause a built-in buzzer to sound to start the infusion.
- the green light emitting diode of the start display lamp 20 blinks to indicate that the operation is being performed.
- An operation indicator 6 (see FIG. 1 ) provided to protrude from an upper part of the door 4 also has a green light emitting diode blinking at intervals according to the dose (the infusion rate) so that the operation state is visible from a distant position.
- a fast-forward switch 36 is provided, and when pressed it allows the liquid to be delivered at a rate higher than the set rate (mL/h) during the pressing.
- a display unit 1100 is provided above the switches, six up-down switches 22 , all are provided as shown, so as to correspond to a 3-digit display unit of the flow rate display unit (a infusion flow rate display unit) 32 .
- Up and down buttons 22 a , 22 b , and 22 c of the up-down switch 22 corresponding to the number of digits (hundreds, tens, ones) are pressed in a stop state to allow setting the input of the flow rate (the infusion flow rate) (mL/h) and the volume to be infused (the dose to be infused) (mL) within a range of 1.0 to 500 mL/h and 1 to 9999 mL, respectively.
- the flow rate setting means (the flow rate setting switch) 11 On the left of the flow rate display unit 32 , the flow rate setting means (the flow rate setting switch) 11 that is pressed to enter the setting mode is provided.
- the up and down buttons 22 a are continuously pressed to increase and decrease the value hundreds by hundreds, and a buzzer sounds synchronized with the increase and decrease of the value at each press.
- the flow rate setting means (the flow rate setting switch) 11 When setting the flow rate setting means (the flow rate setting switch) 11 is pressed to confirm the blinking state, then the value is input by the up-down switch 22 to confirm that the value is a predetermined value, and the flow rate setting means (the flow rate setting switch) 11 is pressed again to set the input.
- an volume infused and volume to be infused display unit 23 surrounded by a printed separate frame is provided above the flow rate display unit 32 .
- a set range for the volume to be infused varies between 1 to 9999 mL by pressing the up and down buttons 22 a , 22 b , and 22 c corresponding to the number of digits of the up-down switch 22 .
- This set range is programmed to be increased by 1 mL increments or set freely, and adapted to store the set value in a storing unit 71 (see FIG. 6 ).
- the volume to be infused setting switch 9 is provided on the left of the volume infused and volume to be infused display unit 23 . This switch is pressed to confirm the set volume to be infused.
- the volume infused is programmed to be displayed in 1 mL increments, thus the volume infused display range is 0.0 to 9999 mL.
- an alarm a buzzer or a voice notification
- a voice notification a voice such as “Confirm the set flow rate” previously stored in the voice IC chip 70 is used to notify to the user.
- the display unit 1100 uses LED elements and is visible even in a dark room without illumination.
- the infusion device 1 also includes a flow rate upper limit setting function.
- infusion setting means (the drip number setting means) 8 is provided to set the drip number of infusion using a drip chamber and confirm the setting afterwards.
- a completion display unit 24 displays the characters “completed” blinking.
- a timing validation display unit 13 is provided to send either a notification regarding the approach of a regular check timing or a notification regarding a regular check by illuminating either a pictographic character of a driver from a back surface or an LED display.
- the display unit 13 is made of LED, the display colors may be changed.
- the display is orange for a predetermined period of days, i.e., a few days before the regular check timing (date), and the display turns red after the regular check date.
- Setting a time period before the transfusion system lights up can be done at configuration. For example, continuously pressing the volume to be infused setting means (the volume to be infused setting switch) 9 while pressing the flow rate setting means (the flow rate setting switch) 11 enables a user to set a time using the up switch 22 b of the up-down switch 22 so that the display on the flow rate display unit 32 is successively changed from 0 (no setting) to 1 (month), 2 (months), . . . 12 (months).
- timing validation may be controlled by a host computer using an internal communication means such as a LAN connection via an external communication unit 56 .
- an occlusion display unit 26 displaying the blinking characters “occlusion” when an occlusion in the infusion tube 2 is detected by the occlusion sensor 62 , urges a user to disable the infusion.
- a door opening display unit 27 is provided to display the blinking characters “door” when the door is not closed incompletely with respect to the body base 3 and an open state is detected by the door switch.
- An air-in display unit 28 is provided to display the blinking characters “air-in” when the air-in sensor 30 a determines that an air of a predetermined length (10 mm or 5 mm) has entered the infusion tube 2 .
- An low battery display unit 29 is provided to display the blinking characters “battery” when the voltage of the built-in battery is low.
- An abnormal flow rate display unit 25 is provided to display an abnormal flow rate. All previous displays are provided as alarm display units surrounded by the same printed frame. More particularly, when the door switch 63 (see FIG. 6 ) determines that the door 4 is opened or incompletely closed with respect to the body base 3 in the stop state of the infusion operation because of an alarm or the like, any operation of the operation switch panel is prohibited to prevent setting an input. An input setting subroutine is shown in FIG. 7 regarding this last case. In FIG. 7 , it is first determined whether the operation is being stopped (Step S 101 ). When it is determined that the operation is being stopped, it is determined whether the door 4 is opened (Step S 102 ).
- Step S 101 When it is determined in Step S 101 that the operation is not being stopped, that is, the operation is being performed, the process returns to the original routine to prohibit a setting input operation (Step S 109 )).
- Step S 103 When it is determined that the door 4 is not opened (closed), it is determined whether the flow rate setting is selected (Step S 103 ).
- Step S 102 When it is determined in Step S 102 that the door 4 is opened, the process returns to the original routine to prevent the occurrence of a setting input operation (Step S 109 )).
- Step S 108 When the flow rate setting is selected, it is determined if the volume to be infused setting is selected (Step S 104 ).
- Step S 107 When the volume to be infused setting is selected, a volume to be infused setting change is performed (Step S 107 ). When the volume to be infused setting is not selected, it is determined if the drip number setting is selected (Step S 105 ). When it is determined that the drip number setting is selected, a drip number change is performed (Step S 106 ). When it is determined that the drip number setting is not selected, the process returns to the original routine to prevent the occurrence of the setting input operation (Step S 109 ). The process also returns to the original routine after the processing of Step S 106 , Step S 107 , and Step S 108 to prohibit a setting input operation (Step S 109 ).
- the order of the routine processing constitutes an example and does not limit the step of the invention.
- a door base 4 a partially shown by a broken line in the lower left part of the drawings is made of aluminum die casting or rigid resin, and has a key surface formed between the side surface and the front surface.
- FIG. 3A and FIG. 3B are perspective and sectional views of the air-in sensor 30 a .
- FIG. 3A is a perspective view of the door side sensor (a transmitting element) 31 facing the base side sensor (a receiving element) 30
- FIG. 3B is a sectional view of the state where the door 4 is closed to hold the infusion tube 2 .
- the door side sensor 31 facing the base side sensor 30 includes a pair of transmitting elements and receiving elements.
- the determination that there is an air in the infusion tube 2 is made through the following flow ( FIG. 4 ). First, the user selects the length (a threshold) of air from 5 mm (mainly for children) or 10 mm (mainly for adults) that are required to be detected.
- Air-in detection sensitivity is selected by pressing the volume to be infused setting means 9 as selection means while pressing the flow rate setting switch 11 as air-in sensor sensitivity selection means (a selection switch) so that a display on the display unit 32 is successively changed from 5 to 10, to 5, and to 10 for each pressing of the volume to be infused setting switch 9 .
- the display is “5”
- the length threshold for the detection of air in the infusion tube 2 is 5 mm
- the display shows “10” the length threshold is 10 mm. Either one of the thresholds is thus selected (Step S 1 ) to cause either “5” or “10” to be displayed as the selected (set) value (Step S 2 ).
- Step S 3 All input setting conditions such as the flow rate and the volume to be infused are ready, and the start switch 19 is then pressed to start the infusion (Step S 3 ).
- Air-in detection is performed during the infusion (Step S 4 ), and when there is an air in the infusion tube 2 , the value detected by the base side sensor (the receiving element) 30 is changed. Thus, the value is counted (in synchronization with the RPMs of a motor driving the fingers 10 - n ) to determine whether the value exceeds the air length threshold.
- Step S 5 When the value exceeds the threshold, it is determined that there is an air (Step S 5 ), a display is made on the air-in display unit 28 , and an alarm (a buzzer or a voice) is generated (Step S 6 ) to stop (Step S 7 ).
- a dedicated selection switch may be provided rather than using another switch as the selection switch.
- Thresholds of lengths of air to be detected by the air-in detection are in a plurality of stages such as “5”, “10”, “15”, “20”, or the like as default values, but the user may select either of two stages of “5” and “10” only.
- a safe design is provided such that the user cannot adjust, change, or set the thresholds of the lengths of the air to be detected by the air-in detection.
- the thresholds can be changed as required by a serviceman for maintenance or the like.
- the present invention has been described, but various improvements or changes may be made without departing from the purpose of the present invention.
- the explanations of the present invention are not limited to the embodiment of the present invention but becomes apparent from the accompanying claims.
Abstract
A user-friendly infusion device is provided, and more particularly, a infusion device including a user interface capable of providing necessary alarms to a user (a healthcare worker) when problems occur when setting a dose and a infusion flow rate before a infusion. The infusion device includes: a setting unit for setting a dose and a infusion flow rate, or the like; and a display unit for displaying the dose and the infusion flow rate, or the like, and is characterized in that when the infusion flow rate (mL/h) is input in the setting unit, the flow rate is increased or decreased step by step in synchronization with a buzzer sound for each press of a 100-digit key. Also, the infusion device includes: a setting unit for setting a dose and a infusion flow rate, or the like; and a display unit for displaying the dose and the infusion flow rate, or the like, and is characterized in that lengths thresholds of detected air is classified into two predetermined stages so that either one can be selected.
Description
- The present invention relates to a infusion device such as a syringe pump or a infusion pump for administering a drug to a patient, and more particularly to a infusion pump which presses a infusion tube to infuse a liquid drug.
- For infusions conducted in medical institutions or medical care at home, problems sometimes occur in setting a infusion flow rate and a dose to be infused. Consequentially, safer infusion devices are required. In conventional infusion devices, an operation panel is used as an user interface that includes a setting input key for setting a flow rate, a volume to be infused or various warnings and a display unit for displaying them (Japanese Patent Laid-Open No. 9-154943 and Japanese Patent Laid-Open No. 2000-300667).
- Conventional devices, however, have problems setting an input suitable for a field of use cannot be performed (for example, setting the input for many flow rates). The present invention is achieved to solve the conventional problems, and has an object to provide a infusion device that is easily usable by use with high safety, and more particularly, a infusion device including a user interface capable of providing a necessary alarm to a user (a healthcase worker) to eliminate the problems in setting a dose and flow rate before a infusion and allowing the user to set the alarm condition.
- The above described object is achieved by a infusion device including: a setting unit for setting a dose and a infusion flow rate, or the like; and a display unit for displaying the dose and the infusion flow rate, or the like, wherein when the infusion flow rate (mL/h) is input via the setting unit, the flow rate is increased or decreased step by step followed by a buzzer sound for each press of an input key. The above described object is also achieved by a infusion device including: a setting unit to set a dose and a infusion flow rate, or the like; and a display unit to display the dose and the infusion flow rate, or the like, wherein thresholds of the lengths of detected air is classified into two predetermined stages so that either thereof can be selected. The above described object is also achieved by a infusion device including in a door: a setting unit to set a dose and a infusion flow rate, or the like; and a display unit to display the dose and the infusion flow rate, or the like, wherein setting an input in the setting unit is prevented while the door is kept opened and/or during the start of a infusion (during a infusion operation).
- As described above, according to the present invention, a infusion device is provided that allows a user to set infusion conditions safely and reliably, and also the easy setup or adjustment or selection of a necessary alarm (warning) condition via a user interface including an operation panel. Further, detailed organization of the present invention will become more apparent from the following description of the best implementation of the invention and its accompanying drawings.
-
FIG. 1 is an overall appearance perspective view of a infusion device according to the present invention with its door being opened; -
FIG. 2 shows an operation switch panel according to the present invention; -
FIG. 3A is a perspective view of a door side sensor (a transmitting element) 31 facing a base side sensor (a receiving element) 30; -
FIG. 3B is a sectional view of a state wheredoor 4 is closed to hold ainfusion tube 2; -
FIG. 4 shows the flow of air detection according to the present invention; -
FIG. 5A shows the rear surface of the infusion device 1; -
FIG. 5B is a perspective view of the bottom surface of the infusion device 1; -
FIG. 6 is a block diagram of the infusion device according to the present invention; and -
FIG. 7 shows the flow of a subroutine for setting inputs according to the present invention. -
- 1 infusion device
- 2 infusion tube
- 4 door
- 6 operation indicator
- 8 the drip number setting switch
- 9 volume to be infused/volume infused setting switch
- 11 flow rate setting switch
- 13 check timing display unit
- Now, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is an appearance perspective view of a state where a peristaltic infusion device 1 as an example of a infusion device is secured to ainfusion pole 90 with its door being opened,FIG. 5A is a rear perspective view, andFIG. 5B is a bottom perspective view.FIG. 6 is a block diagram. In the state inFIG. 1 a flexible infusion tube 2 (seeFIG. 2 ) described later is set in the infusion device. The infusion device is used with thedoor 4 being closed. In this state of use, the outline dimension of a devicebody excluding handle 5 provided in the upper unit and the right andleft protrusions 3 a (the right one only is shown inFIG. 1 ) is about 19 cm wide, about 16 cm high, and about 16 cm deep. - The infusion device 1 has securing
fittings 91 on its a rear surface, into which asecuring knob 92 is screwed so as to be secured to theinfusion pole 90 as shown inFIG. 1 . The infusion device 1 can be secured at any height of theinfusion pole 90 as required for particular use. Further, the infusion device 1 has fourrubber feet 93 secured to its bottom surface so that the infusion device 1 can also be used on a desk beside a patient after being removed from theinfusion pole 90. - Thus, the device is designed so that a user (an operator such as a healthcare worker, for example, a doctor or a nurse) presses each switch with his/her thumb with the remaining fingers resting on back sides of the right and
left protrusions 3 a for an easy pressing of the various switches in order to improve usability when setting (mounting) the infusion tube 2 (seeFIG. 2 ). The right andleft protrusions 3 a (theright protrusion 3 a only is shown inFIG. 1 ) are integrally molded with abody base 3 that is made of reinforced plastic or an aluminum die casting, resistant to impact and have vertically sufficient lengths as shown. With the right and left protrusions (projections) 3 a, abody facing cover 12 of the infusion device 1 has a wider width than thedoor 4, and thus even if the infusion device 1 falls onto the floor, thebody facing cover 12 hits the floor before thedoor 4 hits the floor because of the center of gravity of the infusion device 1, thereby protecting the infusion device 1 and thedoor 4 from strong impact when falling. - Two upper and
lower grooves 3 m used to laterally hold theinfusion tube 2 at the center of thebody base 3 as shown are integrally molded, and the user vertically sets theinfusion tube 2 in thegrooves 3 m. Apump mechanism 100 is fixed in the middle of the grooves by fourscrews 110 attachable and detachable using a tool. Thepump mechanism 100 includes ten fingers 10-n individually driven by cam drive means included in thebody base 3. Each of the fingers 10-n is injection molded out of thermoplastic resin such as a polyacetal resistant to chemicals. In the lower unit of thebody base 3,jaws 3 k protruding to the front in the sheet surface are integrally molded so as to surround thegroove 3 m, and if a lower side surface of a below describeddoor facing cover 12 is placed on thejaws 3 k when thedoor 4 including thedoor facing cover 12 is closed to apply any external force, thejaws 3 k receives the external force to prevent the external force from being applied to thedoor facing cover 12 and thedoor 4 in order to prevent breakage. Ahook 59 is secured to the right side substantially in the middle of thebody base 3, and a lock unit of adoor lock lever 7 rotatably provided in thedoor 4 is locked to thehook 59 to maintain thedoor 4 secured to thebody base 3. Adoor seal rubber 66 made of an elastomer is provided in thedoor 4 at a unit facing the most upstream side of thegroove 3 m, and thedoor seal rubber 66 is deformed so as to form a joining seal surface with a shownshaping unit 3 j of thebody base 3 when thedoor 4 is closed, thereby preventing a liquid drug or the like from entering the infusion device 1. - A
occlusion sensor 62 is provided below thepump mechanism 100, and holds theinfusion tube 2 in front and back directions together with aocclusion pressure plate 69 provided in thedoor 4 to face theocclusion sensor 62. Theocclusion sensor 62 includes a permanent magnet and a pickup sensor to detect the moving distance of the permanent magnet in an analog manner, and is adapted to detect the position of the permanent magnet moved according to internal pressure changes depending on occlusion states of theinfusion tube 2. For this purpose, it is necessary that theocclusion pressure plate 69 does not regulate internal pressure changes of theinfusion tube 2 in any directions, and thus a shown disk is held to be freely movable by a leaf (an elastic member). When a occlusion threshold is detected by theocclusion sensor 62, the adjustment means (selection means) 51 (seeFIG. 5B ) provided at the bottom surface of the infusion device 1 can be adjusted (selected) (a plurality of stages) within 10 stages ranging from 30 to 170 kPa using a driver manipulated by a user or a serviceman for maintenance according to the manufacturer or the type ofinfusion tube 2 used. Abase side sensor 30 that forms one side of the air-insensor 30 a that transmits and receives ultrasound to detect the presence of air entering theinfusion tube 2 is secured between theupper groove 3 m and thepump mechanism 100 in achamber unit 3 h formed in thebody base 3 as shown. Adoor side sensor 31 that forms the other side of the ultrasonic air-insensor 30 a is secured to thedoor 4 as shown. With this organization, thedoor side sensor 31 can fit into thechamber unit 3 h of thebody base 3 with thedoor 4 being closed to hold theinfusion tube 2 with the sensors from the front and back directions, thereby maintaining theinfusion tube 2 immobile. - On the other hand, the
pump mechanism 100 and thebody base 3 are substantially colored in gray, whilegroove parts pump mechanism 100 are red or orange, so that the user sets theinfusion tube 2 in the grooves to correctly hold theinfusion tube 2 in a predetermined position of thepump mechanism 100. InFIG. 1 , thedoor 4 is shown opened and substantially flush with a left side surface of thebody base 3. Thedoor 4 is opened to a maximum angle of approximately 105 degrees with respect to the surface of thebody base 3, and stopped at this position. The middle opening or closing positions for thedoor 4 are rotatably supported byhinges 65 so as to prevent rattling. The hinges 65 include unshown springs. - The
body facing cover 12 specially injection molded of thermoplastic synthetic resin is provided so as to prevent surface sink or a residue of resin flow, and is detachable so as to cover four corners of thebody base 3 in the infusion device 1. Thus, thebody facing cover 12 is detached to be easily accessible to all check spots and parts replacement spots in the infusion device 1, thereby facilitating assembly and also maintenance and parts replacement. Apressure plate 70 is provided on a rear surface of thedoor 4 as described later. Aflexible cable 63 is provided with part thereof being exposed as shown between the upper andlower hinges door side sensor 31 can be performed besides the operation switch panel (seeFIG. 2 ). -
FIG. 5A shows the rear surface of the infusion device 1, andFIG. 5B shows its bottom surface. On the rear surface of the infusion device 1 ofFIG. 5A , akey lock switch 52 for disabling the operation of the operation panel after the start of a infusion operation, aDC connector 53, andrip sensor connector 54, a infusion setdisplay changeover switch 55, an external communication unit mounted on each board (an external communication connector) 56, andrip sensor holder 93 c, a fuse holder, and an AC power supply connector (a receptacle), or the like are arranged. In the bottom surface of the infusion device 1 ofFIG. 5B , adjustment means (an adjustment switch) 50 that serves as both a voice guide selection means (a voice guide selection switch) and the drip number selection display means (the drip number selection switch) is provided. A requested voice guide can be selected from avoice IC chip 70, and optimum voice guidance can be performed at each medical field. The volume of the voice guide can be set by continuously pressing the volume to be infused setting means (a volume to be infused setting switch) 9 while pressing the flow rate setting means (a flow rate setting switch) 11 that also serves as an adjustment means (setting means) so that the display on the flowrate display unit 32 is successively changed from A-1 (volume: low) to A-2 (volume: middle), A-3 (volume: high), and A-1 (volume: low) for each press of theup switch 22 c of the up-down switch 22. Also, a infusion setselection panel 8 is configured that when a infusion tube (a infusion set) 2 is not used, user can not set the drip number for the infusion. The adjustment means 50 may be separately provided. Aclamp mounting screw 93 a is also provided. - Next,
FIG. 2 shows a front view of anoperation switch panel 1000 provided in a front side of the infusion device 1 in the state after theinfusion tube 2 has been set (mounted) and thedoor 4 has been closed. InFIG. 2 , components described above are denoted by the same numeral reference and consequently their descriptions will be omitted. Ainfusion bag 300 containing a predetermined liquid drug is hung on the infusion pole, and the most upstream side of theinfusion tube 2 is connected to theinfusion bag 300. The middle unit of theinfusion tube 2 is set in the infusion device 1 as shown, while anintravenous needle 304 is connected via aroller clamp 303 further downstream of theinfusion tube 2, and theintravenous needle 304 is punctured into the vein of a patient to infuse the liquid drug at a predetermined rate. Theroller clamp 303 acts in the same manner as a clamp mechanism 500 (seeFIG. 1 ) in the infusion device 1, but an operation (open/close operations) of theroller clamp 303 is sometimes forgotten, which forces the user to operate theroller clamp 303 through the voice guide. As described above, theinfusion bag 300 is hung on an unshown infusion pole (a infusion stand) to allow high accuracy infusion to a patient lying on a bed. - The middle unit of the
infusion tube 2 is temporarily set as shown, and then thedoor 4 is closed and locked throughlever 7 to start a infusion. The display units of the drip number, a volume to be infused (a dose to be infused)/volume infused, and a flow rate (a infusion flow rate) display numeral by a so-called seven segments numerical. Theoperation switch panel 1000 is provided in thedoor 4. Thedisplay units operation switch panel 1000 so as to be easily viewable. The display units are color-coded so that thedisplay unit 32 of the flow rate is an orange LED, thedisplay unit 23 of the volume to be infused/volume infused is a green LED, and thedisplay unit 32 of the flow rate is displayed to be larger than thedisplay unit 23 of the volume to be infused/volume infused. The key panel on which the operation switches are placed and thedisplay units - The above described switch keys are mounted on a common board, and LEDs of the
display units display units flexible cable 63, and power is supplied. Electric signals of control signals and drive signals are transmitted from the cable to allow the supply of power and the transmission of the electric signals of the control signals and the drive signals to perform without trouble the opening and closing operations of thedoor 4 including thedoor facing cover 12. A board provided in thedoor 4 handles so-called TTL level electric signals only. - Next, the function of each switch will be described. A
power switch 15 provided in a lower left corner in the drawing is used for turning on/off a main power supply. It turns on the power supply if being pressed for a predetermined amount of seconds (about 2 seconds) and it turns off the power supply if being pressed again for a predetermined amount of seconds (about 3 seconds or more), which prevents the power supply from being accidentally turned on/off. Abattery lamp 16 on the right of thepower switch 15 includes a green light emitting diode to indicate the three stages as shown. It also lights up when an AC power supply or a dedicated DC power supply is connected irrespective of the on/off state of the power supply to indicate that a battery is being charged. Further, thebattery lamp 16 indicates the amount of charge during the charging and the remaining amount during use of the built-in battery with the LED. On the left of thebattery lamp 16, an AC/DC lamp 17 lights up only when a commercial power supply or a DC power supply is used and the power supply is on. A stop andsilence switch 18 that is pressed during the infusion to cause a built-in buzzer to sound in order to stop the infusion is provided above the AC/DC lamp 17. The stop andsilence switch 18 can be pressed while the warning sound (the buzzer) is emitted to silence the sound. Also, when in a state of being ready for the infusion the stop andsilence switch 18 is continuously pressed for predetermined seconds (about 2 seconds), a mode is changed to standby mode. By changing to standby mode, an alarm state for a caution against forgetting to start is released. This can prevent the alarm (the buzzer) from being generated during the time between completion of the puncture of a needle into a patient and the start of the infusion, for example, in an operating room. In a condition where the alarm state is not released, the alarm (the buzzer sound) is generated after predetermined minutes (about 20 minutes) to urge the user to start the infusion. On the left of the stop andsilence switch 18, astop display lamp 21 having a diode that emits an orange light blinking during a stop is provided in association with the stop andsilence switch 18 so as to be surrounded by the same frame. On the right of the stop andsilence switch 18, astart switch 19 is provided. Thestart switch 19 is pressed to cause a built-in buzzer to sound to start the infusion. The green light emitting diode of thestart display lamp 20 blinks to indicate that the operation is being performed. An operation indicator 6 (seeFIG. 1 ) provided to protrude from an upper part of thedoor 4 also has a green light emitting diode blinking at intervals according to the dose (the infusion rate) so that the operation state is visible from a distant position. On the left of the stop andsilence switch 18, a fast-forward switch 36 is provided, and when pressed it allows the liquid to be delivered at a rate higher than the set rate (mL/h) during the pressing. - A
display unit 1100 is provided above the switches, six up-downswitches 22, all are provided as shown, so as to correspond to a 3-digit display unit of the flow rate display unit (a infusion flow rate display unit) 32. Up and downbuttons down switch 22 corresponding to the number of digits (hundreds, tens, ones) are pressed in a stop state to allow setting the input of the flow rate (the infusion flow rate) (mL/h) and the volume to be infused (the dose to be infused) (mL) within a range of 1.0 to 500 mL/h and 1 to 9999 mL, respectively. On the left of the flowrate display unit 32, the flow rate setting means (the flow rate setting switch) 11 that is pressed to enter the setting mode is provided. In setting the flow rate (mL/h), the up and downbuttons 22 a are continuously pressed to increase and decrease the value hundreds by hundreds, and a buzzer sounds synchronized with the increase and decrease of the value at each press. When setting the flow rate (mL/h), first, the flow rate setting means (the flow rate setting switch) 11 is pressed to confirm the blinking state, then the value is input by the up-down switch 22 to confirm that the value is a predetermined value, and the flow rate setting means (the flow rate setting switch) 11 is pressed again to set the input. Above the flowrate display unit 32, an volume infused and volume to be infuseddisplay unit 23 surrounded by a printed separate frame is provided. A set range for the volume to be infused varies between 1 to 9999 mL by pressing the up and downbuttons down switch 22. This set range is programmed to be increased by 1 mL increments or set freely, and adapted to store the set value in a storing unit 71 (seeFIG. 6 ). On the left of the volume infused and volume to be infuseddisplay unit 23, the volume to be infused settingswitch 9 is provided. This switch is pressed to confirm the set volume to be infused. The volume infused is programmed to be displayed in 1 mL increments, thus the volume infused display range is 0.0 to 9999 mL. For the flow rate (mL/h) and the volume to be infused (mL) after setting the input, when the flow rate (mL/h) is equal to or larger than the volume to be infused (mL), an alarm (a buzzer or a voice notification) is used to notify the user. As an example of the voice notification, a voice such as “Confirm the set flow rate” previously stored in thevoice IC chip 70 is used to notify to the user. Thedisplay unit 1100 uses LED elements and is visible even in a dark room without illumination. The infusion device 1 also includes a flow rate upper limit setting function. - Above the volume infused and volume to be infused
display unit 23, infusion setting means (the drip number setting means) 8 is provided to set the drip number of infusion using a drip chamber and confirm the setting afterwards. On its right, acompletion display unit 24 displays the characters “completed” blinking. Below thecompletion display unit 24, a timingvalidation display unit 13 is provided to send either a notification regarding the approach of a regular check timing or a notification regarding a regular check by illuminating either a pictographic character of a driver from a back surface or an LED display. When thedisplay unit 13 is made of LED, the display colors may be changed. For instance, the display is orange for a predetermined period of days, i.e., a few days before the regular check timing (date), and the display turns red after the regular check date. Setting a time period before the transfusion system lights up can be done at configuration. For example, continuously pressing the volume to be infused setting means (the volume to be infused setting switch) 9 while pressing the flow rate setting means (the flow rate setting switch) 11 enables a user to set a time using the upswitch 22 b of the up-down switch 22 so that the display on the flowrate display unit 32 is successively changed from 0 (no setting) to 1 (month), 2 (months), . . . 12 (months). When setting, timing validation may be controlled by a host computer using an internal communication means such as a LAN connection via anexternal communication unit 56. - Further, an
occlusion display unit 26 displaying the blinking characters “occlusion” when an occlusion in theinfusion tube 2 is detected by theocclusion sensor 62, urges a user to disable the infusion. A dooropening display unit 27 is provided to display the blinking characters “door” when the door is not closed incompletely with respect to thebody base 3 and an open state is detected by the door switch. An air-indisplay unit 28 is provided to display the blinking characters “air-in” when the air-insensor 30 a determines that an air of a predetermined length (10 mm or 5 mm) has entered theinfusion tube 2. An lowbattery display unit 29 is provided to display the blinking characters “battery” when the voltage of the built-in battery is low. An abnormal flowrate display unit 25 is provided to display an abnormal flow rate. All previous displays are provided as alarm display units surrounded by the same printed frame. More particularly, when the door switch 63 (seeFIG. 6 ) determines that thedoor 4 is opened or incompletely closed with respect to thebody base 3 in the stop state of the infusion operation because of an alarm or the like, any operation of the operation switch panel is prohibited to prevent setting an input. An input setting subroutine is shown inFIG. 7 regarding this last case. InFIG. 7 , it is first determined whether the operation is being stopped (Step S101). When it is determined that the operation is being stopped, it is determined whether thedoor 4 is opened (Step S102). (When it is determined in Step S101 that the operation is not being stopped, that is, the operation is being performed, the process returns to the original routine to prohibit a setting input operation (Step S109)). When it is determined that thedoor 4 is not opened (closed), it is determined whether the flow rate setting is selected (Step S103). (When it is determined in Step S102 that thedoor 4 is opened, the process returns to the original routine to prevent the occurrence of a setting input operation (Step S109)). When the flow rate setting is selected, a flow rate setting change is performed (Step S108). When the flow rate setting is not selected, it is determined if the volume to be infused setting is selected (Step S104). When the volume to be infused setting is selected, a volume to be infused setting change is performed (Step S107). When the volume to be infused setting is not selected, it is determined if the drip number setting is selected (Step S105). When it is determined that the drip number setting is selected, a drip number change is performed (Step S106). When it is determined that the drip number setting is not selected, the process returns to the original routine to prevent the occurrence of the setting input operation (Step S109). The process also returns to the original routine after the processing of Step S106, Step S107, and Step S108 to prohibit a setting input operation (Step S109). The order of the routine processing constitutes an example and does not limit the step of the invention. - As described above, the operation switch panel as a user interface is designed so that the user can set and confirm the infusion conditions safely and reliably and before starting a infusion. A
door base 4 a partially shown by a broken line in the lower left part of the drawings is made of aluminum die casting or rigid resin, and has a key surface formed between the side surface and the front surface. -
FIG. 3A andFIG. 3B are perspective and sectional views of the air-insensor 30 a.FIG. 3A is a perspective view of the door side sensor (a transmitting element) 31 facing the base side sensor (a receiving element) 30, andFIG. 3B is a sectional view of the state where thedoor 4 is closed to hold theinfusion tube 2. Thedoor side sensor 31 facing thebase side sensor 30 includes a pair of transmitting elements and receiving elements. The determination that there is an air in theinfusion tube 2 is made through the following flow (FIG. 4 ). First, the user selects the length (a threshold) of air from 5 mm (mainly for children) or 10 mm (mainly for adults) that are required to be detected. Air-in detection sensitivity is selected by pressing the volume to be infused setting means 9 as selection means while pressing the flowrate setting switch 11 as air-in sensor sensitivity selection means (a selection switch) so that a display on thedisplay unit 32 is successively changed from 5 to 10, to 5, and to 10 for each pressing of the volume to be infused settingswitch 9. When the display is “5”, the length threshold for the detection of air in theinfusion tube 2 is 5 mm, and when the display shows “10”, the length threshold is 10 mm. Either one of the thresholds is thus selected (Step S1) to cause either “5” or “10” to be displayed as the selected (set) value (Step S2). All input setting conditions such as the flow rate and the volume to be infused are ready, and thestart switch 19 is then pressed to start the infusion (Step S3). Air-in detection is performed during the infusion (Step S4), and when there is an air in theinfusion tube 2, the value detected by the base side sensor (the receiving element) 30 is changed. Thus, the value is counted (in synchronization with the RPMs of a motor driving the fingers 10-n) to determine whether the value exceeds the air length threshold. When the value exceeds the threshold, it is determined that there is an air (Step S5), a display is made on the air-indisplay unit 28, and an alarm (a buzzer or a voice) is generated (Step S6) to stop (Step S7). A dedicated selection switch may be provided rather than using another switch as the selection switch. Thresholds of lengths of air to be detected by the air-in detection are in a plurality of stages such as “5”, “10”, “15”, “20”, or the like as default values, but the user may select either of two stages of “5” and “10” only. Thus, a safe design is provided such that the user cannot adjust, change, or set the thresholds of the lengths of the air to be detected by the air-in detection. The thresholds can be changed as required by a serviceman for maintenance or the like. The present invention has been described, but various improvements or changes may be made without departing from the purpose of the present invention. The explanations of the present invention are not limited to the embodiment of the present invention but becomes apparent from the accompanying claims.
Claims (4)
1. A infusion device comprising:
a setting unit for setting a dose and a infusion flow rate, or the like; and
a display unit for displaying said dose and said infusion flow rate, or the like,
wherein when said infusion flow rate (mL/h) is input in said setting unit, the flow rate is increased or decreased step by step in synchronization with a buzzer sound for each press of a 100-digit key.
2. A infusion device comprising:
a setting unit for setting a dose and a infusion flow rate, or the like; and
a display unit for displaying said dose and said infusion flow rate, or the like,
wherein lengths thresholds of detected air is classified into two stages so that either one can be selected.
3. A infusion device comprising in a door:
a setting unit for setting a dose and a infusion flow rate, or the like; and
a display unit for displaying said dose and said infusion flow rate, or the like,
wherein setting input in said setting unit is being prohibited when said door is opened and/or during a temporary stop.
4. A infusion device comprising in a door:
a setting unit for setting a dose and a infusion flow rate, or the like; and
a display unit for displaying said dose and said infusion flow rate, or the like,
wherein setting input in said setting unit is being prohibited when said door is opened and/or during a start of a infusion.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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JP2003-208262 | 2003-08-21 | ||
JP2003208262 | 2003-08-21 | ||
JP2004175000A JP4638694B2 (en) | 2003-08-21 | 2004-06-14 | Infusion device |
JP2004-175000 | 2004-06-14 | ||
PCT/JP2004/010727 WO2005018716A1 (en) | 2003-08-21 | 2004-07-28 | Transfusion device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/010727 Continuation WO2005018716A1 (en) | 2003-08-21 | 2004-07-28 | Transfusion device |
Publications (1)
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US20060140798A1 true US20060140798A1 (en) | 2006-06-29 |
Family
ID=34220639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/357,105 Abandoned US20060140798A1 (en) | 2003-08-21 | 2006-02-21 | Infusion device |
Country Status (5)
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US (1) | US20060140798A1 (en) |
JP (1) | JP4638694B2 (en) |
KR (1) | KR100753748B1 (en) |
CN (1) | CN1838972B (en) |
WO (1) | WO2005018716A1 (en) |
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WO2007000427A1 (en) | 2005-06-27 | 2007-01-04 | Novo Nordisk A/S | User interface for delivery system providing dual setting of parameters |
EP1952835A1 (en) * | 2007-01-30 | 2008-08-06 | Animas Corporation | Water-proof infusion pump keypad assembly and method for making the same |
US20080221495A1 (en) * | 2007-03-08 | 2008-09-11 | Steffens Brian J | Blood pump system user interface alarm management |
US20080243055A1 (en) * | 2007-02-28 | 2008-10-02 | Hospira, Inc. | System and method for sequencing channels in a multi-channel infusion pump |
US20090137907A1 (en) * | 2007-11-22 | 2009-05-28 | Kabushiki Kaisha Toshiba | Imaging diagnosis apparatus having needling navigation control system and a needling navigation controlling method |
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Also Published As
Publication number | Publication date |
---|---|
CN1838972A (en) | 2006-09-27 |
JP4638694B2 (en) | 2011-02-23 |
KR100753748B1 (en) | 2007-08-31 |
CN1838972B (en) | 2011-11-09 |
WO2005018716A1 (en) | 2005-03-03 |
KR20060034731A (en) | 2006-04-24 |
JP2005095577A (en) | 2005-04-14 |
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AS | Assignment |
Owner name: TERUMO KABUSHIKI KAISHA, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KUTSUZAWA, AKIO;REEL/FRAME:017597/0601 Effective date: 20060207 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |