WO2005018716A1

WO2005018716A1 - Transfusion device

Info

Publication number: WO2005018716A1
Application number: PCT/JP2004/010727
Authority: WO
Inventors: Akio Kutsuzawa
Original assignee: Terumo Kabushiki Kaisha
Priority date: 2003-08-21
Filing date: 2004-07-28
Publication date: 2005-03-03
Also published as: JP2005095577A; JP4638694B2; US20060140798A1; KR100753748B1; KR20060034731A; CN1838972B; CN1838972A

Abstract

A transfusion device easily usable for a user, particularly having a user interface capable of giving a necessary alarm to the user (person engaged in medical care) on troubles occurring when transfusion amount and transfusion flow are set before transfusion. The transfusion device comprises a setting part for setting the transfusion amount and the transfusion flow and a display part for displaying the transfusion amount and the transfusion flow and is characterized in that when a transfusion flow (mL/h) is inputted at the setting part, the flow is increased or decreased one by one in synchronism with buzzer sound each time a 100-digit keypad is pressed. Also, the transfusion device comprises the setting part for setting the transfusion amount and the transfusion flow and a display part for displaying the transfusion amount and the transfusion flow, and is characterized in that the thresholds of the detected lengths of air bubbles are classified into specified two groups so that either thereof can be selected.

Description

Specification

Infusion device

Technical field

The present invention relates to a drug infusion device such as a syringe pump and an infusion pump for administering a drug to a patient, and more particularly to an infusion pump that injects a drug solution by sequentially pressing an infusion tube. Background art

[0002] Infusions in medical institutions and home care may have problems in setting the infusion flow rate and the planned infusion volume, and the need for a safer infusion device is required. Conventionally, infusion devices have used a user's interface including an operation panel for setting and inputting and displaying setting input keys, a flow rate including a display unit, a scheduled volume, various alarms, etc. (Patent Document 1, Patent Document 2).

Patent Document 1: JP-A-9-154943

Patent Document 2: JP-A-2000-300667

Disclosure of the invention

Problems to be solved by the invention

[0003] There have been problems such as the difficulty of setting and inputting a large amount of flow while setting and inputting settings suitable for the site of use.

This application was made in order to solve the conventional problems, and is excellent in user-friendliness and highly safe infusion device, particularly, inconvenience in setting the infusion volume and infusion flow rate before performing infusion. It is an object of the present invention to provide an infusion device having a user interface capable of giving an alarm or the like to a user (medical worker) as necessary, and setting an alarm condition as appropriate by the user.

Means for solving the problem

[0004] The above object is an infusion apparatus including a setting unit for setting an infusion amount, an infusion flow rate, and the like, and a display unit for displaying the infusion amount, the infusion flow amount, and the like. This is achieved by an infusion device that is characterized by incrementing or decrementing by 1 each time a 100 digit key is pressed when entering / h). The above purpose is also to set the infusion volume, infusion flow rate, etc. This is an infusion apparatus provided with a setting unit for displaying the infusion amount, the infusion flow rate, and the like, wherein the threshold value of the bubble length at which bubbles are detected is set to two predetermined levels, and either one can be selected. The present invention is achieved by an infusion device characterized by the above. The above object is also directed to an infusion device in which a door is provided with a setting section for setting an infusion amount, an infusion flow rate, and the like, and a display section for displaying the infusion volume, the infusion flow rate, and the like, wherein the door is open. And Z or during the start of infusion (during infusion operation), this is achieved by an infusion device that does not allow setting input in the setting section.

The invention's effect

[0005] As described above, according to the present invention, the user can safely and securely set the infusion conditions, and further set the alarm (alarm) conditions as necessary using the user interface including the operation panel. An infusion device that can be easily adjusted and selected can be provided. Further specific configurations of the invention will be apparent from the following best mode for carrying out the invention and the accompanying drawings.

Brief Description of Drawings

FIG. 1 is a schematic perspective view of an infusion device of the present invention with a door opened.

FIG. 2 is a view showing an operation switch panel of the present invention.

FIG. 3A is a schematic perspective view of a door-side sensor (transmitting element) 31 at a position facing a base-side sensor (receiving element) 30.

FIG. 3B is a cross-sectional view showing a state where the infusion tube 2 is sandwiched by closing the door 4.

FIG. 4 is a diagram showing a flow of bubble detection of the present invention.

FIG. 5A is a diagram showing a back surface of the infusion device 1.

FIG. 5B is a perspective view showing a bottom surface of the infusion device 1.

FIG. 6 is a block diagram of an infusion device of the present invention.

FIG. 7 is a diagram showing a flow of a setting input subroutine of the present invention.

Explanation of symbols

[0007] 1 ... infusion device, 2 ... infusion tube, 4 ... door, 6 ... operation indicator, 8 ... drop number setting switch, 9 ... planned / integrated amount setting switch, 11 ... flow rate setting switch, 13 ... inspection time table Indicator

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a perspective view showing the appearance of a peristaltic infusion device 1 as an example of an infusion device fixed to an infusion pole 90 and a door opened, Fig. 5A is a rear perspective view, and Fig. 5B is a bottom perspective view. It is. FIG. 6 is a block diagram. From the state of FIG. 1, for example, a flexible infusion tube 2 (see FIG. 2), which will be described later, is set and used with the door 4 closed. In this use state, the outer dimensions of the device body, excluding the handle 5 provided on the information and the left and right protrusions 3a (only the right side is shown in FIG. 1), are approximately 19 cm in width, approximately 16 cm in height, The depth dimension is about 16cm.

[0009] As shown in the figure, the infusion device 1 has a fixing bracket 91 to which a fixing knob 92 is screwed to be fixed to the infusion pole 90 as shown in the figure. It can be fixed to any height of 90 at any time. In addition, after removing the infusion device 1 from the infusion pole 90, rubber feet 93 are fixed to the four corners of the bottom surface so that the infusion device 1 can be used even when placed on a desk beside the patient bed. .

[0010] In this way, for example, to set (wear) the infusion tube 2 (see FIG. 2), the user (operator such as a medical worker such as a doctor or a nurse) is used to improve (improve) the usability. The user presses each switch with his thumb and the remaining fingertips are hooked on the back sides of the left and right projections 3a so that the various switches can be pressed easily. These left and right protrusions 3a (however, only the right protrusion 3a in FIG. 1 is shown in FIG. 1) are made of the same material as the rugged plastic or aluminum die-cast, strong, impact-resistant main body base 3. It is integrally formed and has a sufficient length in the vertical direction as shown. According to these left and right protrusions (convex portions) 3a, the width of the body decorative cover 12 of the infusion device 1 is formed to be larger than the width of the door 4, so that the infusion device 1 is placed on the floor. Even if it falls, the infusion unit 1 will hit the floor before the door 4 due to the center of gravity of the infusion unit 1, and also plays a role of protecting the infusion unit 1 and the door 4 from the impact force when dropped.

[0011] As shown in the figure, the main body base 3 is integrally formed with two upper and lower grooves 3m for holding the infusion tube 2 from the left and right at a substantially central portion. The infusion tube 2 is set up and down. A pump mechanism 100, which is configured to be detachable using a tool, is driven individually by a cam driving means built in the main body base 3 in a total of four screws 110 substantially in the middle of these groove portions 3m. A mechanism having ten fingers 10-n is provided. Each of the fingers 10-n is injection molded of a thermoplastic resin such as polyacetal having excellent chemical resistance. In addition, a lower part of the main body base 3 is integrally formed with a jaw 3k projecting forward in the drawing so as to surround the groove 3m. When the door 4 provided with the door decorative cover 12 described later is closed, the jaw 3k is closed. When any shocking external force is applied due to the lower side surface of the door decorative cover 12 being positioned on the jaw 3k of the door, the external force is received by these jaws 3k so that the door decorative bar 12 and the door 4 On the other hand, no external force is applied to prevent breakage. Further, a hook 59 is fixed to a substantially middle right portion of the main body base 3, and a locking portion of a door lock lever 7 provided rotatably at the door 4 is locked to the hook 59. Thus, the door 4 can be maintained in a fixed state with respect to the main body base 3. Further, a door seal rubber 66 made of an elastomer is disposed on the door 4 which is a portion facing the most upstream side of the groove 3m, and when the door 4 is closed, the main body base 3 is formed as shown in FIG. The door seal rubber 66 is deformed so as to form a joint seal surface between and, so that a liquid medicine or the like is prevented from entering the infusion device 1.

An obstruction sensor 62 is disposed below the pump mechanism 100, and the transfusion tube 2 is sandwiched in the front-rear direction together with an obstruction pressing plate 69 disposed on the door 4 so as to face the obstruction sensor 62. The blockage sensor 62 is composed of a permanent magnet and a pickup for detecting the moving distance of the permanent magnet in an analog manner. The permanent magnet that is moved according to a change in internal pressure due to the blocked state of the infusion tube 2. Is configured to be detected. For this reason, it is necessary for the closing / pressing plate 69 not to regulate the internal pressure change in all directions of the infusion tube 2, so that the disk shown in the figure is freely attached to the end of the panel plate (elastic member). It is held so that it can move. The threshold value that is detected as occlusion by the occlusion sensor 62 is determined by adjusting the adjusting means (selecting means) 51 (see FIG. 5B) provided on the bottom surface of the infusion device 1 in 10 steps (multiple steps) in the range of 30 to 170 kPa with a driver or the like. From now on, the user or a service person who performs maintenance etc. can adjust (select) as appropriate according to the manufacturer and type of the infusion tube 2 to be used. It has become. A base-side sensor 30, which is one of the bubble sensors 30a for transmitting and receiving ultrasonic waves between the upper groove 3m and the pump mechanism 100 to detect the presence or absence of bubbles mixed in the infusion tube 2, as shown in the figure. It is fixed in the room 3h formed in the main body base 3. Further, the door-side sensor 31, which is the other side of the ultrasonic bubble sensor 30a, is fixed to the door 4 as shown. With this configuration, when the door 4 is closed, the door-side sensor 31 is able to penetrate into the main body base 3 room 3h, so that the infusion tube 2 is immobilized by being sandwiched between the sensors from the front and back. So that it can be maintained.

[0013] On the other hand, the pump mechanism 100 and the main body base 3 include fingers and are generally colored in a gray system, but the upper and lower parts of the pump mechanism 100 are grooves colored in a red or orange system that are conspicuous colors. Parts 94 and 95 are fixed, and when the user sets the infusion tube 2, it is set in each groove so that the infusion tube 2 can be surely held at a predetermined position of the pump mechanism 100. Further, in FIG. 1, the door 4 is shown in an open state until it is substantially flush with the left side surface of the main body base 3. The door 4 is opened to a maximum angle of about 105 degrees with respect to the surface of the base 3 and stops at this position, while the door 4 is opened and closed by a hinge 65 so as to prevent rattling in the middle of the opening / closing operation. The pivot is supported. For this reason, a panel (not shown) is built in the hinge 65.

[0014] The infusion device 1 is attached and detached so as to hold the four corners of the main body base 3 with a special injection molded body cover 12 made of a thermoplastic synthetic resin material of a predetermined material so as not to cause sink marks or the like. It is provided freely. Therefore, by removing the decorative cover 12 of the main body, all inspections inside the infusion device 1 can be easily brought close to the part replacement parts, and a design that takes into account not only assembly work but also maintenance inspection and parts replacement work should be considered. Has become. A pressing plate 70 is provided on the back surface of the door 4 in a biased state as described later. A flexible cable 63 is provided between the upper and lower hinges 65, 65 for power supply and electric signal transmission with a part exposed as shown in the figure, and in addition to the operation switch panel (see Fig. 2). Thus, power supply and electric signal transmission to the door-side sensor 31 described above can be performed.

[0015] FIG. 5A shows the back of the infusion device 1, and FIG. 5B shows the bottom surface. The back of the infusion device 1 shown in FIG. 5A has a key lock switch 52 for disabling the operation panel operation after the start of the infusion operation. , DC connector 53, drip probe connection connector 54, infusion set display switching switch 55, external communication unit mounted on each board (external communication connection connector) 56, drip probe holder 93c, fuse holder and AC power supply connector (receptacle), etc. Is provided. In addition, an adjusting means (adjustment switch) 50 is provided on the bottom of the infusion device 1 shown in FIG.5B, which serves as both a voice guide selecting means (voice guide selecting switch) and a drop number selecting display means (drop number selecting display switch). Te, ru. The necessary voice guide can be appropriately selected from the voice IC chip 70, so that an optimum voice guide can be performed at each medical site. The volume of the voice guide can be adjusted by holding down the flow rate setting means (flow rate setting switch) 11 and the planned volume setting means (planned volume setting switch) 9 while pressing the flow rate setting means (flow rate setting switch) 11. Each time the up switch 22c of the up / down switch 22 is pressed, the flow rate display section 32 displays A-1 (volume: low) → A_2 (volume: medium) → A_3 (volume: high) → A_1 (volume: low) Since they are switched sequentially, they can be confirmed and set. Also, the number of infusions of the infusion tube (infusion set) 2 which is not to be used can be removed from the selection of the infusion set selection panel 8. The adjusting means 50 may be provided separately. A clamp mounting screw 93a is also provided.

Next, FIG. 2 is a front view illustrating a state after the infusion tube 2 is set (mounted) and the door 4 is closed, and illustrates the operation switch panel 1000 provided on the front side of the infusion device 1. In FIG. 2, the same reference numerals are given to the components already described, and the description is omitted. An infusion bag 300 containing a predetermined chemical solution is hung on an infusion pole, and the most upstream side of the infusion tube 2 is connected to the infusion bag 300. As shown in the figure, an intermediate portion of the infusion tube 2 is set in the infusion device 1, while a further downstream side of the infusion tube 2 is connected to a venous needle 304 via a roller clamp 303. By inserting the puncture needle 304 into the vein of the patient, the liquid medicine is injected at a predetermined speed. This roller clamp 303 has the same function as the clamp mechanism 500 (see FIG. 1) on the infusion device 1 side.Forced operation of this roller clamp 303 (opening / closing operation) is often forgotten. Therefore, the user is prompted to operate the roller clamp 303 together with the audio guide. As described above, the infusion bag 300 is hung on a not-shown infusion pole (infusion stand) to enable highly accurate infusion to a patient lying on a bed. [0017] After the intermediate portion of the infusion tube 2 is temporarily set as shown in the figure, the door 4 is closed and the door lock lever 7 is operated so that the infusion can be performed. The display of (volume) / integrated volume and flow rate (infusion flow rate) is indicated by a so-called 7-segment numeric display. Door 4 has an operation switch panel 1000, a drop number, an estimated amount Z, an integrated amount, and a flow rate display section 8, 23, and 32. The display section 8, 23, and 32 are laid out easily. The flow rate display section 32 is an orange LED and displays the estimated amount / integrated amount. The section 23 is indicated by a green LED in each color, and the flow rate display section 32 is displayed larger than the planned / integrated quantity display section 23. The key panel on which the operation switches are arranged and the display of the number of drops, the estimated volume, the Z volume, and the flow rate are displayed on the back of the transparent resin film, and the specified items are printed on the back side of the transparent resin film, and are embossed to form a circular shape forward. A protruding resin film is adhered and provided so as to cover each of the built-in switch keys (not shown), thereby preventing a chemical solution or the like from entering the inside.

[0018] Each of the above-mentioned switch keys is mounted on a common substrate, and the LEDs of the display units 8, 21, 23, 25, 26, 27, 28, and 32 emit light by themselves, so that the display can be viewed at night. Make it easy. Each switch key and display 咅 21, 23, 25, 26, 27, 28, 32 and lamps are connected to a control unit described later via a flexible cable 63. By transmitting the control signal, the electric signal of the drive signal, and the like, the power supply and the transmission of the control signal, the electric signal of the drive signal, and the like accompanying the opening / closing operation of the door 4 provided with the door cosmetic cover 12 can be performed without any trouble. Like that. The board provided on the door 4 handles only the so-called TTL level electric signal.

Next, the function of each switch will be described. The power switch 15 located in the lower left corner of the figure is used to turn on / off the main power.Pressing and holding for a predetermined time (approximately 2 seconds) turns on the power (〇N) and turns it on again. The power is controlled to be turned off (OFF) by pressing and holding for a predetermined time (about 3 seconds or more), so that the power cannot be turned on / off carelessly. The battery lamp 16 to the right of the power switch 15 is provided with a green light-emitting diode that displays three levels as shown in the figure. Regardless of whether the power is turned on (ON) or Z off (OFF), it lights up when the AC or dedicated DC power supply is connected to indicate that charging is in progress. Also, when the built-in battery is in use, the remaining amount is displayed in three levels of LEDs. Also, on the left side of the battery lamp 16, there is a commercial power An alternating current (AC) / direct current (DC) lamp 17 is provided, which is always turned on only when the power is ON when the DC power is used. Pressing this AC / DC lamp 17 during infusion causes a built-in buzzer to sound and a stop / mute switch 18 for forcibly stopping the infusion is provided. The stop / mute switch 18 can be muted by pressing the buzzer when an alarm sound (buzzer) sounds, and the stop / mute switch 18 can be used when the infusion is ready and the infusion can be started. Pressing and holding for a predetermined period of time (about 2 seconds) has the function as a standby setting means, enters the “standby mode”, and releases the alarm state that requires attention to forget to start. This force can prevent an alarm (buzzer) from being generated during the time until the start of infusion, for example, when the patient is in the operating room waiting in a state where the needle is completed. Under the condition that the alarm state is not released, an alarm (buzzer sound) is generated after a predetermined time (about 20 minutes) to prompt the start of infusion. On the left of the stop / mute switch 18, a stop indicator lamp 21 is provided so that a diode that emits orange light blinks during the stop so as to be surrounded by the same frame as the stop / mute switch 18. A start switch 19 is provided to the right of the stop / mute switch 18.When the start switch 19 is pressed, the built-in buzzer sounds, the infusion operation starts, and the green light emitting diode of the start indicator lamp 20 Flashes to indicate that it is operating. In addition, the operation indicator 6 (see Fig. 1) protruding from the upper part of the door 4 so that the operating force can be visually recognized even if the position force is slightly distant, the green light emitting diode also flashes at a flashing interval corresponding to the infusion rate (infusion rate). It is blinking. Further, a fast-forward switch 36 is provided on the left side of the above-mentioned stop / mute switch 18, and when the switch is pressed, the liquid feed speed is faster than a set speed (mL / h) during pressing. Can be done.

A display 1100 is provided above each of these switches, and an up / down switch 22 corresponding to the three-digit display of a flow rate display (infusion flow rate display) 32 as shown in FIG. It is arranged individually. Pressing the up / down buttons 22a, 22b, 22c corresponding to the number of digits (100th, 10th, 1st) of these up and down switches 22, respectively, while stopped, causes the flow rate (infusion flow rate) (mL / h) The setting input of the planned volume (planned volume of infusion) (mL) can be 1.0 500mL / h, and 1999999mL. A flow rate setting means (flow rate setting switch) 11 is provided on the left side of the flow rate display section 32 so as to enter a setting mode when pressed. Also When setting the flow rate (mL / h), the up / down button 22a at the 100th digit (digit) increases or decreases only by the numerical power even if it is kept pressed. I have. When setting the flow rate (mL / h), first press the flow rate setting means (flow rate setting switch) 11, check the blinking state, enter a value with the up / down switch 22, and confirm that the value is the specified value. The setting is input by pressing the flow rate setting means (flow rate setting switch) 11 again. Above the flow rate display section 32, an integrated quantity / scheduled quantity display section 23 surrounded by separate frame printing is provided. The set volume setting range can be set in the range of 1.999999mL by pressing the up / down buttons 22a, 22b and 22c corresponding to each digit of the above-mentioned up / down switch 22, and can be set in lmL units. The program is configured so as to be able to be set freely, and the set value is stored in the storage unit 71 (see FIG. 6). On the left side of the “integrated amount” planned amount display section 23, there is provided a planned amount setting switch 9 for confirming by pressing after setting the planned amount. In addition, it is programmed to display the integrated amount infused in units of 1 mL so that the integrated amount display range is in the range of 0.0 to 9999 mL. In addition, it is programmed to display the infused amount in 1 mL units so that the integrated amount display range is in the range of 0.0 to 9999 mL. If the flow rate (mL / h) and the set volume (mL) set and input are (Flow rate (mL / h) ≥ planned volume (mL)), alert the user with an alarm (buzzer or sound notification). I have to. As an example of the voice notification, the user is notified by voice such as “Please check the set flow rate” stored in the voice IC chip 70 in advance. These display units 1100 use LED elements so that they can be viewed without lighting even in night or dark rooms. The infusion device 1 also has a flow rate upper limit setting function.

Above the integrated amount / planned amount display section 23, there is provided an infusion set setting means (drop number setting means) 8 for setting the number of infusions when performing infusion using an infusion tube and checking after setting. . To the right of this is provided a completion display section 24 for blinking the word “Complete”. Below the completion display section 24, an inspection time display section that illuminates the driver's pictograms (such as characters) from the back and informs that the next period of the periodic inspection is approaching or that it is time for the periodic inspection by LED display. 13 are provided. When the display section 13 is indicated by an LED, it is displayed in orange at a predetermined time for the periodic inspection (due date), for example, a few days before the period. The display color may be changed so as to be displayed in red after the regular inspection date. The setting of the period until the lamp is lit can be performed, for example, by holding down the flow rate setting means (flow rate setting switch) 11 while the infusion operation is stopped, while holding down the scheduled volume setting means (planned volume setting). (Switch) Press and hold 9 and up. Down switch 22 Each time the 22b up switch is pressed, 0 (no setting), 1 (month), 2 (month) ... 12 (month) and 1, 2 on the flow rate display section 32 · · · 12 and the display switches in order, so you can check and make settings. In addition, when the setting is made, the inspection time may be centrally managed by the host computer via the external communication unit 56 and internal communication means such as a LAN.

Further, when the infusion tube 2 is detected by the occlusion sensor 62 to be incapable of infusion and the infusion cannot be performed, the word “occlusion” flashes to prompt the user to take action, and the door is connected to the base 3. The door opening indicator 27 that flashes the word `` door '' when the condition is detected by the door switch when the condition is not complete, and air bubbles when a predetermined length (10 mm or 5 mm) is mixed into the infusion tube 2 An air bubble abnormality display section 28 that blinks the letters “bubbles” when judged by the sensor 30a, and a battery abnormality display section 29 that blinks “battery” when the voltage of the built-in battery drops. It is provided as an alarm display section surrounded by the same print frame as the flow rate abnormality display section 25 for displaying the flow rate abnormality as shown in the figure. In particular, when the infusion operation is stopped due to an alarm or the like, the door 4 is opened or closed with respect to the main body base 3 with the door switch 63 (see FIG. 6) or completely closed and is in a good state. Judgment is made that operations on all operation switch panels are prohibited and settings are not entered. An example of a setting input subroutine in this case is shown in FIG. In FIG. 7, first, it is determined whether or not the vehicle is stopped (step S101). If it is determined that the driving is stopped, it is determined whether or not the door 4 is open (Step S102X.If it is determined that the driving is not stopped in Step S101, that is, if the operation is determined to be in operation, the process returns to the original routine. The setting input operation is prohibited (step S109). When it is determined that the door 4 is not open (closed), it is determined whether the flow rate setting is selected (Step S103X.If it is determined in Step S102 that the door 4 is open, the original routine is executed. Then, the setting input operation is prohibited (step S109). When the flow rate setting is selected, a flow rate setting change process is performed (step S108). If the flow rate setting is not selected, it is determined whether the scheduled amount setting has been selected (step S104). Forecast If the fixed amount setting is selected, a scheduled amount setting change process is performed (step S107). If the scheduled volume setting is not selected, it is determined whether the drop number setting is selected (step S105). If it is determined that the setting of the number of drops has been selected, a drop number changing process is performed (step S106). If it is determined that the setting of the number of drops is not selected, the process returns to the original routine, and the setting input operation is prohibited (step S109). Note that the process returns to the original routine after the processing of step S106, step S107, and step S108, and the setting input operation is prohibited (step S109). The order of the above-described routine processing is one example and is not limited.

As described above, an operation switch panel as a user interface has been devised so that a user can safely 'set securely' infusion conditions and start infusion. The door base 4a, which is partially shown by a broken line in the lower left of the figure, is made of die-cast aluminum or rigid resin, and forms a design point between the side and front.

FIG. 3A and FIG. 3B show a perspective view and a cross-sectional view of the bubble sensor 30a. Fig. 3A is a perspective perspective view of the base-side sensor (receiving element) 30 and the door-side sensor (transmitting element) 31 at an opposite position, and Fig. 3B shows a state in which the infusion tube 2 is clamped by closing the door 4. FIG. The door-side sensor 31 at a position facing the base-side sensor 30 is formed by a pair of a transmitting element and a receiving element. The determination that there is a bubble in the infusion tube 2 is performed according to the following flow (FIG. 4). First, the user selects whether the detected bubble length (threshold) is 5 mm (mainly used for children) or 10 mm (mainly used for adults). To select the bubble detection sensitivity, press the scheduled volume setting switch 9 as the selection unit while pressing the flow rate setting switch 11 as the bubble sensor sensitivity selection unit (selection switch). The display is switched in the order of “5” → “10” → “5” → “10” on the display unit 32, and if “5” is displayed, the threshold value of the length for judging that there is a bubble in the infusion tube 2 is set. If 5 mm and “10” are displayed, it means that the threshold value of the length for judging that there is a bubble in the infusion tube 2 is 10 mm. When one of these is selected (step S1), either the displayed “5” or “10” becomes the selected (set) value (step S2). When all the input setting conditions such as the flow rate and the scheduled volume are set, and the start switch 19 is pressed, the infusion starts (step S3). Bubbles are detected during the infusion (step S4), and if there are bubbles in the infusion tube 2, the base side sensor ( Since the value detected by the receiving element 30 changes, it is counted (synchronous with the rotation speed of the motor that drives the finger 10-n) to determine whether or not the value exceeds the bubble length threshold. If it is over, it is determined that there is a bubble (step S5), an alarm (buzzer, voice, etc.) is generated and displayed on the bubble abnormality display section 28 (step S6), and the operation is stopped (step S7). As the selection switch, a dedicated switch may be provided without using the other switches as described above. The threshold value of the length of the bubble to be detected by the bubble detection has a default value of multiple steps such as "5", "10", "15", and "20". Only one of the two thresholds of “5” and “10” can be selected. For this reason, a safety design has been made so that the user cannot appropriately adjust and change the threshold value of the bubble length to be detected by the bubble detection. It should be noted that the threshold can be changed by a service person who performs maintenance and the like as necessary. Although the present invention has been described above, various modifications and changes can be made without departing from the spirit of the present invention. Such a spirit of the present invention is limited to the embodiment of the present invention. It will be made clearer by the appended claims rather than by the appended claims.

Claims

The scope of the claims

[1] An infusion device including a setting unit for setting an infusion amount, an infusion flow rate, and the like, and a display unit for displaying the infusion amount, the infusion flow amount, and the like,

An infusion apparatus characterized in that when the infusion flow rate (mL / h) is input in the setting section, each time a 100 digit key is pressed, the number is increased or decreased by one in synchronization with a buzzer sound.

[2] An infusion device including a setting unit for setting an infusion amount, an infusion flow amount, and the like, and a display unit for displaying the infusion amount, the infusion flow amount, and the like,

An infusion device, characterized in that the threshold value of the bubble length at which bubbles are detected is set to two levels so that any force can be selected.

[3] An infusion device provided with a setting unit for setting an infusion amount, an infusion flow rate, and the like, and a display unit for displaying the infusion amount, the infusion flow amount, and the like on a door,

An infusion device wherein the setting unit does not allow a setting input when the door is open and / or when the door is temporarily stopped.

[4] An infusion apparatus provided with a setting unit for setting an infusion amount, an infusion flow rate, and the like, and a display unit for displaying the infusion amount, the infusion flow rate, and the like on a door,

An infusion apparatus in which setting cannot be made in the setting section while the door is open and during Z or infusion is started.