JP4638694B2 - Infusion device - Google Patents

Description

  The present invention relates to a drug infusion device such as a syringe pump or 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.

In infusion in medical institutions and home medical care, there are cases where there is a problem in setting the infusion flow rate and infusion scheduled amount, and there is a need for a safer infusion device. 2. Description of the Related Art Conventionally, infusion devices have used a user interface including an operation panel for performing setting input / display of setting input keys, a flow rate including a display unit, a predetermined amount, various alarms, and the like (Patent Documents 1 and 2). .
Japanese Patent Laid-Open No. 9-154943 However, there has been a problem that a large amount of flow is set and input, or a setting input suitable for the use site cannot be performed.

  This application has been made to solve the conventional problems, and is a user-friendly and highly safe infusion device, especially regarding inconvenience when setting the infusion volume and infusion flow rate before infusion. It is an object of the present invention to provide an infusion device having a user interface that can give an alarm or the like as needed to a user (medical worker) and can set an alarm condition appropriately by the user.

  As described above, according to the present invention, the user can safely and reliably set the infusion conditions, and the alarm (alarm) conditions can be set, adjusted and selected by the user interface including the operation panel as necessary. An infusion device that can be easily provided can be provided.

The purpose is to provide a setting unit having an operation switch panel (1000) for setting the infusion volume and infusion flow rate, and a display unit (1100 , 8, 21, 23, 25, 26 for displaying the infusion volume and infusion flow rate ). , 2728, 32) , an infusion device comprising a control unit ,
The setting unit includes an up / down switch (22a) corresponding to 100 digits of the flow rate display unit (32) constituting the display unit (1100, 8, 21, 23, 25, 26, 2728, 32), 10 digits. Up / down switch (22b) corresponding to 1 and an up / down switch (22c) corresponding to one digit, and the infusion flow rate (mL ) by the up / down switch (22a, 22b, 22c) constituting the setting unit. / h), even if the up / down switch (22a) corresponding to 100 digits is kept pressed, the value increases or decreases by 1 each time, and every time it is pressed, 1 is synchronized with the buzzer sound. The display unit (1100 , 8 , 21 , 23 , 25 , 26 , 2728 , 32) and the setting unit are provided on a door, and the door (4) is a base of the main body. on the surface of the (3) Opened up angle and, while stopping at this position, in the middle position of the opening and closing operation of the door (4) is rotated axially supported by a hinge (65) to prevent rattling, the hinge (65) A part (63) of the flexible cable is exposed in order to supply power and transmit electric signals so that the power supply and electric signals can be transmitted to the operation switch panel (1000) . The control unit is controlled so that setting input cannot be performed on all of the operation switch panels (1000) constituting the setting unit while the door (4) is open or during the start of infusion. To do.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG.
FIG. 5 is a rear perspective view and a bottom perspective view showing a state in which the peristaltic infusion device 1 as an example of an infusion station device is fixed to an infusion pole 90 and a door is opened. FIG. 6 is a block diagram. From the state of FIG. 1, for example, a flexible infusion tube 2 (see FIG. 2) described later is set and the door 4 is closed. In this state of use, the external dimensions of the apparatus main body excluding the handle 5 provided on the information and the left and right protrusions 3a (shown only on the right side in FIG. 1) are about 19 cm in width, about 16 cm in height, and depth. The dimension is about 16 cm.
This infusion device 1 is fixed to the back with a fixing metal 91 screwed with a fixing knob 92 for fixing to the infusion pole 90 as shown in the figure. It can be fixed at any time and used. Further, 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 near the patient bed.

  In this way, for example, when the infusion tube 2 (see FIG. 2) is set (mounted), the user (operator such as a medical worker such as a doctor or a nurse) uses his / her thumb to improve (improve) the usability at the time. Each switch is pressed and the remaining fingertips are hooked on the back side of the left and right protrusions 3a so that the pressing operation of the various switches can be easily performed. These left and right projections 3a (however, only the right projection 3a is shown in the right direction in FIG. 1) are integrally made of the same material from a rugged plastic base made of reinforced plastic or aluminum die-cast and having impact resistance. It is molded and has a sufficient length in the vertical direction as shown in the figure. According to these left and right projections (convex portions) 3a, the body decorative cover 12 of the infusion device 1 is formed so that the width is larger than the width of the door 4, so that the infusion device 1 is on the floor surface. Even if it is dropped, it comes into contact with the floor surface before the door 4 due to the relationship of the center of gravity of the infusion device 1, and also plays a role of protecting the infusion device 1 and the door 4 from the impact force at the time of dropping.

  As shown in the figure, the main body base 3 is integrally formed with two upper and lower grooves 3m that sandwich the infusion tube 2 from the left and right at approximately the center, and the user places the infusion tube 2 in the upper and lower directions in these grooves 3m. It is configured to set to. In addition, a total of four screws 110 are approximately halfway between these groove portions 3m, and are individually driven by a cam driving means built in the main body base 3 of the pump mechanism 100 configured to be detachable using a tool. A mechanism provided with ten fingers 10-n is provided. Each finger 10-n is injection-molded with a thermoplastic resin such as polyacetal having excellent chemical resistance. Further, a lower part of the main body base 3 is integrally formed with a jaw 3k protruding forward in the drawing so as to surround the groove 3m. When the door 4 provided with a door decorative cover 12 described later is closed, these jaws When a shocking external force is applied due to the lower side surface of the door decorative cover 12 being positioned on the portion 3k, the external decorative force is applied to the door decorative cover 12 and the door 4 by receiving the external force at these jaw portions 3k. Damage is prevented by applying no external force. Further, a hook 59 is fixed to a right middle portion of the main body base 3, and a locking portion of a door lock lever 7 that is rotatably provided in 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 formed of an elastomer is disposed on the door 4 which is a portion facing the most upstream side of the groove portion 3m. When the door 4 is closed, the main body base 3 is connected to the illustrated shape portion 3j. The door / seal rubber 66 is deformed so as to form a joint seal surface therebetween, thereby preventing a chemical solution or the like from entering the infusion device 1.

  A blocking sensor 62 is disposed below the pump mechanism 100, and the infusion tube 2 is sandwiched in the front-rear direction together with a blocking presser plate 69 disposed on the door 4 so as to face this. The closing sensor 62 is composed of a permanent magnet and a pickup for detecting the moving distance of the permanent magnet in an analog manner, and the position of the permanent magnet that is moved in accordance with the change in the internal pressure accompanying the closing state of the infusion tube 2. Is configured to detect. For this reason, it is necessary for the closing presser plate 69 not to restrict the change in the internal pressure of the infusion tube 2 in all directions, so that the illustrated disk is held so as to be freely movable at the end of the spring plate (elastic member). ing. The threshold value detected as occlusion by the occlusion sensor 62 is 10 levels (a plurality of levels) within a range of 30 to 170 kPa using an adjustment means (selection means) 51 (see FIG. 5B) provided on the bottom surface of the infusion device 1 with a screwdriver or the like. ) Can be appropriately adjusted (selected) by the user or a service person who performs maintenance or the like according to the manufacturer and type of the infusion tube 2 to be used. A base side sensor 30 serving as one of bubble sensors 30a for detecting presence / absence of bubbles mixed in the infusion tube 2 by transmitting / receiving ultrasonic waves between the upper groove 3m and the pump mechanism 100 is shown in FIG. 3 is fixed in the chamber 3h formed in the chamber 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 can infiltrate into the main body base 3 chamber 3h, so that the infusion tube 2 can be maintained in an immobile state by being sandwiched between the sensors from the front and rear directions. I have to.

  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 portions of the pump mechanism 100 are grooved parts 94 and 95 colored in a red or orange system, which are conspicuous colors. Is fixed, and when the user sets the infusion tube 2, the infusion tube 2 can be definitely held at a predetermined position of the pump mechanism 100 by being set in each groove portion. Further, FIG. 1 shows a state in which the door 4 is opened 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 approximately 105 degrees with respect to the surface of the main body base 3 and stops at this position, while the door 4 is rotated by a hinge 65 so as to prevent rattling at an intermediate position of the door 4 opening and closing operation. It is pivotally supported. For this reason, a spring (not shown) is built in the hinge 65.

The infusion device 1 is provided with a body decorative cover 12 specially injection-molded from a predetermined thermoplastic synthetic resin material so that there are no sink marks or resin flow marks, etc., so that the four corners of the body base 3 are detachably provided. ing. Therefore, by removing the main body decorative cover 12, all the inspections inside the infusion device 1 can be easily brought close to the parts replacement part, and the design in consideration of not only the assembly work but also the maintenance inspection and the parts replacement work is considered. It has become. On the back of the door 4 is provided in a state where the pressing plate 70 is energized as described below. In addition, a flexible cable 63 is provided between the upper and lower hinges 65 and 65 in a state where a part of the flexible cable 63 is exposed for power supply and electric signal transmission as shown in the drawing, in addition to the operation switch panel (see FIG. 2). Thus, power supply to the door-side sensor 31 and electric signal transmission can be performed.

    FIG. 5 shows the back and bottom surfaces of the infusion device 1. On the back of the infusion device 1 shown in FIG. 5 (a), there are a key lock switch 52 and a DC connector for disabling operation panel operation after the start of the infusion operation. 53, an infusion probe connection connector 54, an infusion set display changeover switch 55, an external communication unit (external communication connection connector) 56 mounted on each substrate, an infusion probe holder 93c, a fuse holder and an AC power supply connector (receptacle), etc. It has been. Further, on the bottom surface of the infusion device 1 shown in FIG. 5 (b), adjusting means (adjustment switch) 50 serving both as voice guide selection means (voice guide selection switch) and drop number selection display means (droplet number selection display switch). Is provided. A necessary voice guide can be selected from the voice IC chip 70 as appropriate, and an optimum voice guide can be performed at each medical site. The volume of the voice guide also functions as an adjusting means (setting means). While holding down the flow rate setting means (flow rate setting switch) 11, the expected volume setting means (scheduled amount setting switch) 9 is held down and Each time the up switch 22c of the down switch 22 is pressed, A-1 (volume: small) → A-2 (volume: medium) → A-3 (volume: high) → A-1 (volume :) (Small) and the display are switched in order, so you can check and set. In addition, the number of infusions of the infusion tube (infusion set) 2 that is not scheduled 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 an operation switch panel 1000 provided on the front side of the infusion device 1, showing a state after the infusion tube 2 is set (mounted) and the door 4 is closed. In FIG. 2, components that have already been described are denoted by the same reference numerals and description thereof is omitted. An infusion bag 300 containing a predetermined drug solution is suspended from an infusion pole, and the uppermost stream side of the infusion tube 2 is connected to the infusion bag 300. The intermediate portion of the infusion tube 2 is set in the infusion device 1 as shown in the figure. On the further downstream side of the infusion tube 2, a vein puncture needle 304 is connected via a roller clamp 303. Is injected into a patient's vein to inject a liquid medicine at a predetermined speed. The roller clamp 303 performs the same function as the clamp mechanism 500 (see FIG. 1) on the infusion device 1 side, but often the operation (open / close operation) of the roller clamp 303 may be forgotten. The operation of the roller clamp 303 is urged together with the voice guide. As described above, the infusion bag 300 is hung on an infusion pole (infusion stand) (not shown) to enable highly accurate infusion to a patient lying on a bed.

  After temporarily setting the intermediate part of the infusion tube 2 as shown in the figure, the infusion can be performed by closing the door 4 and operating the door lock lever 7, while the number of drops, the expected amount (the expected infusion amount) / The display part of the integrated amount and flow rate (infusion flow rate) is a so-called 7-segment numerical display. The door 4 is laid out with the operation switch panel 1000 and the number of drops, the planned amount / integrated amount, and the flow rate display units 8, 23, and 32 in an easy-to-see manner. The flow rate display unit 32 is an orange LED and displays the planned amount / integrated amount. The unit 23 is displayed by color with green LEDs, and the flow rate display unit 32 is displayed larger than the display unit 23 for the planned amount / integrated amount. A key panel with operation switches and the number of drops, planned amount / integrated amount, and flow rate display sections 8, 23, and 32 are printed on the back surface of the transparent resin film with predetermined items and rounded forward by embossing. A resin film processed so as to protrude is bonded to cover each switch key (not shown) so as to prevent chemicals and the like from entering the inside.

  The above switch keys are mounted on a common board, and the LEDs of the display units 8, 21, 23, 25, 26, 27, 28, and 32 are self-luminous so that the display can be easily seen at night. ing. Each switch key, the display unit 8, 21, 23, 25, 26, 27, 28, 32 and the lamps are connected to a control unit to be described later via a flexible cable 63. By transmitting control signals, electrical signals of drive signals, etc., it is possible to perform power supply and transmission of control signals, electrical signals of drive signals, etc. without any troubles in accordance with the opening and closing operation of the door 4 provided with the door decorative cover 12. ing. The board provided on the door 4 handles only a so-called TTL level electric signal.

  Next, the function of each switch will be described. A power switch 15 disposed in the lower left corner of the figure is used to turn on / off the main power. When the power switch 15 is continuously pressed for a predetermined time (approximately 2 seconds), the power is turned on (ON) and again for a predetermined time. It is controlled so that the power is turned off by keeping it pressed (approximately 3 seconds or longer), so that the power cannot be turned on / off carelessly. The battery lamp 16 on the right side of the power switch 15 is provided with a green light emitting diode that displays in three stages as shown in the figure. Regardless of whether the power is on (ON) or off (OFF), it lights up to indicate that charging is in progress when an AC or dedicated DC power supply is connected. When the built-in battery is in use, the remaining amount of the LED is displayed in three levels. Further, an alternating current (AC) / direct current (DC) lamp 17 is provided on the left side of the battery lamp 16 when the commercial power source or the direct current power source is used and is always lit only when the power source is on. Yes. On this AC / DC lamp 17, a built-in buzzer sounds when pressed during infusion, and a stop / mute switch 18 is provided to forcibly stop the infusion. The stop / mute switch 18 can be muted by pressing when an alarm sound (buzzer) is sounding, and the stop / mute switch 18 can be turned on for a predetermined time (2) after the infusion is ready and the infusion can be started. If the button is kept pressed for about 2 seconds, it has a function as a standby setting means, enters the “standby mode”, and the alarm state that forgets to start is released. For this reason, for example, when waiting in the operating room with the needle inserted into the patient, an alarm (buzzer) is not generated during the time until the start of infusion. In the condition where the alarm state is not canceled, an alarm (buzzer sound) is generated after a predetermined amount (about 20 minutes) to prompt the start of infusion. On the left side of the stop / mute switch 18, a stop display lamp 21 in which a diode that emits orange light during the stop blinks is provided in association with the same frame as the stop / mute switch 18. A start switch 19 is provided on the right side of the stop / mute switch 18, and when the start switch 19 is pressed, a built-in buzzer sounds, the infusion operation starts, and the green light emitting diode of the start display lamp 20 blinks. To indicate that it is operating. In addition, the operation indicator 6 (see FIG. 1) provided on the upper portion of the door 4 so that the operation state can be visually recognized from a slightly distant position is also blinking according to the infusion volume (infusion rate). It is made to blink. In addition, a fast-forward switch 36 is provided on the left side of the stop / mute switch 18, and by pressing this switch, liquid feeding faster than the set speed (mL / h) is performed. I can do it.

  A display unit 1100 is provided above each switch, and a total of six up / down switches 22 are arranged as shown in the figure so as to correspond to the three-digit display unit of the flow rate display unit (infusion flow rate display unit) 32. It is installed. By pressing the up / down buttons 22a, 22b, 22c corresponding to the number of digits (100th, 10th, 1st) of the up / down switch 22 in a stopped state, the flow rate (infusion flow rate) (mL / h) Setting input of a predetermined amount (planned infusion volume) (mL) can be set to 1.0 to 500 mL / h and 1 to 9999 mL, respectively. A flow rate setting means (flow rate setting switch) 11 is provided on the left side of the flow rate display unit 32 to enter the setting mode when pressed. In addition, when the flow rate (mL / h) is set, even if the up / down button 22a at the 100th place is kept pressed, the numerical value is increased or decreased by 1 each time, and the buzzer sounds in synchronization with the increase or decrease of the numerical value every time the button is pressed. I have to. When setting the flow rate (mL / h), first press the flow rate setting means (flow rate setting switch) 11 and check the blinking state. Then, enter the numerical value with the up / down switch 22 and confirm that it is a predetermined numerical value. Then, the setting is input by pressing the flow rate setting means (flow rate setting switch) 11 again. Above the flow rate display unit 32, an integrated amount / scheduled amount display unit 23 surrounded by separate frame printing is disposed. The scheduled amount setting range can be set in the range of 1. to 9999 mL by pressing the up / down buttons 22a, 22b, and 22c corresponding to the number of digits of the up / down switch 22, and is set in units of 1 mL. Alternatively, it is programmed so that it can 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 / scheduled amount display portion 23, a scheduled amount setting switch 9 is provided for confirming when pressed after setting the scheduled amount. Moreover, it is programmed to display the infused integrated amount in units of 1 mL so that the integrated amount display range is in the range of 0.0 to 9999 mL. Moreover, it is programmed to display the infused integrated amount in units of 1 mL so that the integrated amount display range is in the range of 0.0 to 9999 mL. If the set flow rate (mL / h) and the planned volume (mL) are flow rate (mL / h) ≥ planned volume (mL), an alarm (buzzer or voice alert) will be used to alert the user. 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 seen without illumination even at night or in a dark room. The infusion device 1 also has a flow rate upper limit setting function.

  In addition, an infusion set setting means (drop number setting means) 8 is provided above the integrated amount / scheduled amount display unit 23 to set the number of infusions when infusion is performed using an infusion tube and to confirm after the setting. . Adjacent to the right is a completion display section 24 that displays the word “complete” in a blinking manner. Below this completion display section 24 is an inspection time display section 13 that illuminates the driver's pictograms (characters, etc.) from the back, or informs that the next periodic inspection period is approaching or is the periodic inspection period by LED display. Is provided. When this display unit 13 is displayed with an LED, even if the display color is changed so that it is displayed in orange from a predetermined period of the regular inspection time (date), for example, a few days before the period, and red after the periodic inspection date. Good. The period until lighting is set, for example, by pressing the flow rate setting means (flow rate setting switch) 11 while holding the flow rate setting means (flow rate setting switch) 9 while the infusion operation is stopped. Each time the up / down switch 22b up switch 22b is pressed, 0 (no setting), 1 (month), 2 (month) ... 12 (month), and the flow rate display 32 is 1, 2,.・ Since the display is switched to 12, the settings can be confirmed and set. When set, the inspection time may be centrally managed by the host computer by an internal communication means such as a LAN via the external communication unit 56.

  Further, when the occlusion abnormality of the infusion tube 2 is detected by the occlusion sensor 62 and the infusion cannot be performed, the occlusion anomaly display portion 26 that prompts treatment by blinking the letter “occlusion”, and the door is completely connected to the main body base 3. When the state is detected by the door switch, the door opening display unit 27 that blinks the letters “door”, and the bubble sensor when bubbles of a predetermined length (10 mm or 5 mm) are mixed in the infusion tube 2 The bubble abnormality display unit 28 that blinks the “Bubble” print character when judged by 30a, the battery abnormality display unit 29 that blinks “Battery” when the voltage of the built-in battery drops, and the flow rate. It is provided as an alarm display section surrounded by the same print frame as shown in the figure with a flow rate abnormality display section 25 for displaying an abnormality. In particular, when an infusion operation or the like is stopped by an alarm or the like, all operations are performed when the door switch 63 (see FIG. 6) determines that the door 4 is open with respect to the main body base 3 or not completely closed. Operation on the switch panel is prohibited, and the device is designed not to input settings. An example of the setting input subroutine in this case is shown in FIG. In FIG. 7, it is first determined whether or not the vehicle is stopped (step S101). If it is determined that the door 4 is stopped, it is determined whether or not the door 4 is open (step S102). Operation is prohibited (step S109). If it is determined that the door 4 is not open (closed), it is determined whether or not the flow rate setting has been selected (step S103) (If it is determined in step S102 that the door 4 is open, the original is set. Returning to the routine, 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 or not the scheduled amount setting is selected (step S104). When the scheduled amount setting is selected, a scheduled amount setting change process is performed (step S107). If the scheduled amount setting is not selected, it is determined whether or not the droplet number setting is selected (step S105). If it is determined that the droplet number setting has been selected, a droplet number changing process is performed (step S106). If it is determined that the drop number setting is not selected, the process returns to the original routine, and the setting input operation is prohibited (step S109). Note that the processing returns to the original routine after steps S106, S107, and S108, and the setting input operation is prohibited (step S109). The order of the routine processing described above is an example and is not limited.

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

    FIG. 3 is a perspective view and a cross-sectional view of the bubble sensor 30a. FIG. 3A is a schematic perspective view of the door side sensor (transmitting element) 31 located opposite to the base side sensor (receiving element) 30, and FIG. 3B is a state in which the infusion tube 2 is held by closing the door 4. It is sectional drawing which showed a mode made into. The door-side sensor 31 at a position facing the base-side sensor 30 is formed by a pair of transmitting and receiving elements. The determination that air bubbles are present in the infusion tube 2 is performed according to the following flow (FIG. 4). First, it is selected whether the length (threshold value) of the bubble detected by the user is 5 mm (mainly applied to a dwarf) or 10 mm (mainly applied to an adult). The selection of the bubble detection sensitivity is displayed each time the scheduled amount setting switch 9 is pressed by pressing the scheduled amount setting switch 9 as the selection unit while pressing the flow rate setting switch 11 as the bubble sensor sensitivity selecting unit (selection switch). If the display is switched in order from “5” → “10” → “5” → “10” in the section 32 and “5” is displayed, the length threshold for determining that there is a bubble in the infusion tube 2 is 5 mm. , “10” indicates that the length threshold for determining that there is a bubble in the infusion tube 2 is 10 mm. When either one is selected in this way (step S1), one of the displayed “5” or “10” becomes a selected (set) value (step S2). When all the input setting conditions such as the flow rate and the planned amount are set and the start switch 19 is pressed, the infusion is started (step S3). Bubble detection is performed during the infusion (step S4), and if there is a bubble in the infusion tube 2, the value detected by the base side sensor (receiving element) 30 changes, so this is counted (finger 10-n It is determined whether or not the bubble length threshold has been exceeded in synchronization with the number of rotations of the motor to be driven. If it has exceeded, it is determined that there is a bubble (step S5) and displayed on the bubble abnormality display unit 28. An alarm (buzzer, voice, etc.) is generated (step S6) and stopped (step S7). The selection switch may be provided with a dedicated switch without using another switch as described above. The threshold value of the bubble length to be detected by the bubble detection is a multiple value such as “5”, “10”, “15”, “20” as the default value. , Only one of the two threshold values “10” can be selected. For this reason, the safety design is made so that the user cannot adjust and change the threshold value of the bubble length to be detected by the bubble detection. Note that the threshold value can be changed as necessary by a service person who performs maintenance or the like.

It is a general | schematic perspective view of the infusion apparatus of the state which opened the door of this invention. It is a figure which shows the operation switch panel of this invention. It is a figure which shows the bubble sensor of this invention. It is a figure which shows the flow of the bubble detection of this invention. It is the back perspective view and bottom face perspective view of the infusion apparatus of this invention. It is a block diagram of the infusion apparatus of this invention. It is a figure which shows the flow of the subroutine of a setting input of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Infusion apparatus, 2 ... Infusion tube, 4 ... Door, 6 ... Operation indicator, 8 ... Drop number setting switch, 9 ... Schedule amount / integrated amount setting switch, 11 ... Flow rate setting switch, 13 ... Inspection time display part

Claims (2)

A setting section having an operation switch panel (1000) for setting the infusion volume and infusion flow rate, and a display section (1100 , 8, 21, 23, 25, 26, 27, 28 for displaying the infusion volume and the infusion volume ) , 32) , an infusion device comprising a control unit ,
The setting unit includes an up / down switch (22a) corresponding to 100 digits of the flow rate display unit (32) constituting the display unit (1100, 8, 21, 23, 25, 26, 27, 28, 32), Up / down switch (22b) corresponding to 10 digits, up / down switch (22c) corresponding to 1 digit,
When the infusion flow rate (mL / h) is input by the up / down switches (22a, 22b, 22c) constituting the setting unit ,
Even if the up / down switch (22a) corresponding to 100 digits is kept pressed, the numerical value is increased or decreased only by one, and each time the key is pressed, the control unit increases or decreases by one in synchronization with the buzzer sound. Control
The display unit (1100 , 8 , 21 , 23 , 25 , 26 , 27 , 28 , 32) and the setting unit are provided on the door (4) ,
The door (4) is opened to the maximum angle with respect to the surface of the main body base (3) and stops at this position, while the door (4) is hinged so as to prevent rattling at an intermediate position of the opening / closing operation of the door (4). (65) is pivotally supported, and a part of the flexible cable (63) is exposed between the hinge (65) for power supply and electric signal transmission. Power supply and electrical signal transmission to (1000) ,
The infusion is characterized in that the control is controlled by the control unit so that setting input cannot be performed on all the operation switch panels (1000) constituting the setting unit while the door (4) is open or during the start of the infusion. apparatus.   The infusion device according to claim 1, further comprising a key lock switch for disabling operation of the operation panel after the start of the infusion operation.

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