JP2001037875A - Medicine injector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an operator to easily confirm setting input operation and an action even from either position by providing an operation switch, an action display part and a display panel, and variably arranging at least either of these in the optional direction to a medicine injector body. SOLUTION: In a syringe pump as a medicine injector, an operation panel part 2f for displaying a flow rate is arranged on a pump upper surface, and an action indicator (an action display part) 7 is arranged in a position easily visible from the outside so as to project upward. The operation panel part 2f is provided with a setting switch 6a and a deciding switch 6b for setting a numeric value, a preset value is displayed on a display part 11, and a flow rate, an expected quantity and an integral quantity can be displayed on the display part 11. A display part 10 is arranged to inject gamma. These operation switch, action display part and display panel are arranged at an optional inclination to a pump body, and can be attached, and are constituted so as to be reversible by 180 degrees.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medicine injection device provided with an operation switch, an operation display section, a display panel, and the like. Also, the present invention relates to a drug injection device for automatically injecting a drug solution based on input data, particularly to a syringe pump.

[0002]

2. Description of the Related Art Conventionally, when an operation unit (operation switch, operation panel) of a medicine injection device (syringe pump) is set to a front side, an injection device set in the medicine injection device is set.
The outlet of the (syringe) may be in the opposite direction to the administration site. At this time, the administration route of the flexible tube to be connected becomes longer due to a J-turn, and there is also a possibility that the tube will be blocked. .

In order to avoid this problem, the main body of the medicine injection device is sometimes set upside down. However, since the operation switches, the operation display section, the display panel, and the like are read from upside down, erroneous operation, injection amount, injection amount, etc. There is a possibility that a setting input value such as an injection pattern such as a speed is erroneously read.

[0004] In view of the above circumstances, the present invention allows the operation switches, the operation display section, the display panel, and the like to be variable in any direction with respect to the main body of the drug injection device, and allows the operator to input settings from any position. It is an object of the present invention to provide a drug injection device that allows easy operation and operation confirmation.

[0005]

In order to achieve the above object, a drug injection device according to the present invention comprises an operation switch, an operation display section, a display panel, and the like.
At least one of the display panels can be changed in an arbitrary direction with respect to the medicine injection device main body.

[0006] The drug injection device of the present invention is further characterized in that the operation switch, the operation display section, and the display panel can be turned 180 degrees with respect to the main body of the drug injection device.

[0007] The drug injection device of the present invention is further characterized in that the operation switch, the operation display section, and the display panel are made detachable from the drug injection device main body and can be turned 180 degrees. It is.

In the drug injection device of the present invention, the operation switch, the operation display section, and the display panel are further provided at an arbitrary inclination angle with respect to the drug injection device main body, and are detachable, and are turned 180 degrees. It is characterized by being made possible.

[0009] The drug injection device of the present invention is further characterized in that the operation switch, the operation display section, and the display panel are liquid crystal.

[0010] The drug injection device of the present invention is further characterized in that it is a syringe pump.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below based on a syringe pump as an example of a drug injection device with reference to the accompanying drawings.

FIG. 1 is a perspective view of the appearance of the syringe pump 1 in normal use.
Setting switch 6 as setting means normally operated with the right hand
FIG. 5A is a view showing the confirmation switch 6b so as to be visible.

In this figure, this syringe pump 1
An operation panel unit 2f for performing a microcontinuous infusion pump for the purpose of nutrition supply, blood transfusion, infusion of a drug such as a chemotherapeutic agent, an anesthetic, etc. in an ICU, a CCU, and a NICU. As described above, it is provided so as to be substantially concentrated on the upper surface, thereby improving operability.

The operation panel 2f is basically covered with an embossed sheet cover, and has a drip-proof design that satisfies the JIS0920 drip-proof test. For example, it easily wipes carelessly spilled chemicals and the like. It is highly drip-proof so as to be able to take in and prevent a chemical solution or the like from entering the inside.

For this purpose, the upper cover 2 and the lower cover 3 are integrally formed from a molded resin material having chemical resistance, and a rubber seal 4 made of, for example, a silicone elastomer is interposed on the connecting surfaces of the covers 2 and 3. By adopting a configuration in which screwing is performed after that, foreign matter such as liquid is prevented from entering the inside.

In addition, it is possible to realize precise injection operation control by a microcomputer in order to emphasize high precision of injection and improvement of operability, and an operation indicator projecting upward at a position which is easy to see from the outside.
The (operation display unit) 7 is illuminated and flashed in multiple colors of red or green, and is illuminated in a rotating manner so that the operation state and the alarm state can be monitored from a distance, thereby ensuring safety. It also has a built-in buzzer and various safety functions for safety.

Also, since it is small and lightweight, it is designed to be easy to carry and to be used conveniently even when a plurality of units are used at the same time. Further, by pressing the setting switch 6a on the upper surface of the apparatus, the numerical value can be set in a short time, while the display unit 11 of the display panel is set.
The setting value can be displayed on the display device, and when the setting of the numerical value such as the flow rate is changed, the setting value can be easily changed by operating the setting switch 6a and the confirmation switch 6b.

Furthermore, it has a shape that can be used in multiple (combined use) and a design that is easy to use and can be further built up. The shape and dimensions are, for example, height H: 110 mm × width W: 322 mm × depth D: 115 mm. Small and
The volume ratio is 80% or less and the weight is about 2.0 kg. The power source is an AC commercial power source, a built-in battery, and a DC power source.
There are three systems of 12 VA.

The built-in battery has a charging time of 24 hours (hours), and is provided with a lid at the bottom of the lower cover 3 so as to be easily replaceable from the outside, and is detachably provided by being connected to a connector. . In addition, while the replacement life is three years or more, the charge control is trickle charge. In addition, overdischarge and charge prevention are realized by detecting the cell breakage of the rechargeable battery and taking measures to prevent cell breakage. Then, a heat-resistant (Ni-Cd) battery is used, and a new battery can be operated for 120 minutes or more until an alarm is generated and for 150 minutes or more before shutdown.

A display unit 10 for gamma injection;
The display panel 11 for the flow rate / planned quantity / integrated quantity and the others are the operation panel 2
f.

Next, in order to set a main body of the syringe (not shown), a slit in which a flange (not shown) formed integrally with the syringe stage 2a and the main body of the syringe is set on the upper cover 2. While the portion 2c is formed by integral injection molding, a clamp column 2b (shown by a broken line) for rotatably supporting the clamp 5 is also integrally formed.

The slider assembly 50 driven in the direction of arrow A4 in the drawing reciprocates on the concave portion 2d of the case, while a pipe shaft and an inner clutch shaft, which will be described later, with respect to a slider feed mechanism shown by a broken line. The pusher (not shown) can be easily attached or detached by manually operating the clutch lever 52 of the slider assembly 50.

FIG. 2 shows the operation panel unit 2f in normal use.
FIG. In the figure, a power switch 15 and
An AC / DC lamp 16 and a battery lamp 17 are centrally arranged at the left end. A gamma setting display unit 10 is provided next to these lamps, but some models do not have this gamma setting display unit 10 because they are sufficiently usable. The gamma setting display section 10 includes:
A display ON / OFF switch 10a and an item changeover switch 10b are provided.

On the other hand, a clamp 5 is provided on the display section 10.
When the setting is performed by using, the vertical movement amount of the clamp is converted into an electric signal, and then the syringe diameter is automatically measured to set the syringe volume 10 cc (ml), 2
0cc (ml), 30cc (ml), 50cc (ml)
Is displayed.

An operation indicator 7 is provided below the clamp 5 so as to project upward from a transparent acrylic resin or the like, so that the built-in operation indicator 7 emits red and green light appropriately. Light emitting diodes 7a to 7d
Is turned on or off, or the light is scattered inside so as to rotate in the direction of the arrow shown in the drawing, so that the injection operation state can be displayed by lightning.

Adjacent to the clamp 5, there are provided display lamps 19a, 19b, and 19c for switching and displaying three levels of the set pressure detected by the blockage detection mechanism provided in the syringe pump. Adjacent to these lamps are a remaining amount alarm lamp 20, a battery alarm lamp 22, and others.

Next to these lamps, the flow rate, the planned volume,
A seven-segment liquid crystal (LED) display unit 11 having integrated amount lamps 23, 24, and 25 is provided. A display changeover switch 26, an accumulation clear switch 27, a fast-forward switch 30, a start switch 29, and a stop / mute switch 28, which are one of operation switches, are provided below the display unit 11.

Subsequently, the flange of the syringe is slit 2
Insert the flange of the syringe into the slit 2c to set it at c. After that, the main body of the syringe is set on the syringe stage 2a, and then the syringe is clamped by the clamp.

The above-mentioned slit 2c and syringe stage 2
Further, a small-diameter circular arc groove portion is formed integrally with a so that a small-capacity small-diameter syringe can be held in a stationary state. Thus, the setting of the syringe is completed.

Subsequently, the clutch is released and the slider is moved. At this time, the slider assembly 50 shown in FIG.
By pressing the clutch lever 52, the slider can be moved by hand.

Then, the pusher of the syringe is brought into contact with the slider assembly 50, and then the clutch lever 52 is moved.
Then, the left and right hooks (not shown) 53 and 54 automatically hold the pusher of the syringe. That is, when the clutch lever 52 is released, the hook of the slider is in a state of pinching the pusher of the syringe. The above is the basic set operation.

The slider feed mechanism is further provided with a blockage detecting mechanism. By pushing the pusher of the syringe, it is possible to inject the drug solution inside, but at this time, the force acting in the opposite direction due to the action of the resistance in the syringe and other infusion channels. Occurs.

The force thus generated becomes a deflection of a pressure sensor (not shown), and this mechanical deflection is converted into an electrical output, and a certain set value (E2PROM,
(However, the half-width 2 indicates a superscript) is displayed, the alarm is displayed on the operation indicator 7 as an alarm indicating an abnormal state, and an alarm sound (buzzer) is generated (sounds).

The load setting resulting from the resistance in the syringe and other infusion channels is performed by the three display lamps 19a and 19 provided on the display panel on the upper cover 2.
The display is switched between three stages by b and 19c, and the load set values are as follows.

(1) H (high); (800 ± 200 mmHg) (2) M (medium); (500 ± 100 mmHg) (3) L (small); (300 ± 100 mmHg) In consideration of the sliding resistance, the syringe diameter (syringe capacity) is determined by the syringe diameter detecting means (not shown) according to the manufacturer name (any syringe capacity of 50 cc, 30 cc, 20 cc, or 10 cc). Is detected, and automatic correction is made by the sliding resistance of the syringe.

Exchange memory (E2PROM) inside CPU
, The sliding resistance data of the syringes of ten companies are stored in advance, and the manufacturer name used in the manufacturer name setting input section 40 can be set.

On the other hand, the remaining amount detection mechanism is an important function when the remaining amount becomes low during the operation, and is an arbitrary position where the pump is continuously operated and the pusher of the syringe is moved. Is reached, it comes into contact with the lever of the potentiometer.

When the movement is further continued from the contact state, the value of the potentiometer reaches a predetermined value stored in advance (an advance warning position described later in detail). At this time, the alarm is displayed on the operation indicator 7 as an alarm notifying that the scheduled injection is completed after a predetermined time, and an alarm sound is generated to display the remaining amount alarm.

As described above, when the operation of injecting the chemical solution by the pump is completed, the pump moves in the direction opposite to the feeding direction, the slider is returned to the initial position, and the lever of the potentiometer is connected to the lever. It is configured to return to the initial position by the force of the tension spring.

In the clutch disengagement detection mechanism, the clutch lever 52 is erroneously gripped during the feed operation of the pump, and the meshing state of the half nut (not shown) and the lead screw (not shown) constituting the clutch is disengaged. An alarm sound is generated when the same event occurs due to an operation of a load or some kind of load, and the operation indicator 7 notifies an abnormality.

Next, the holding of the syringe sectional area data is performed by C
The interchangeable memory (E2PROM) inside the PU stores syringe cross-sectional area data for ten companies. Furthermore, γ
(Gamma) injection, scheduled amount injection, alarm / drive status display are provided, and the alarm is a three-dimensional display. In the drive state, the LED lighting location is rotated.

The remaining battery level is displayed on the battery lamp 17 in three stages. Conventionally, the detection of the remaining battery level is performed based on the battery voltage. However, the present apparatus detects the remaining battery level with higher accuracy by integrating the current.

As for the setting switch 6a, the set value displayed on the display section 11 is increased by pressing the upper ▲, and is decreased by pressing the lower ▼. If the button is kept pressed for more than a few seconds, the speed of increase / decrease becomes faster, and the set time can be shortened. Set value displayed on display unit 11
After confirming (injection volume ml, injection speed ml / h), the set value is set and input by pressing the confirm switch 6b for several seconds.

Specifically, when the display changeover switch 26 provided on the display panel of FIG. 2 is pressed, the flow lamp 23, the planned amount lamp 24 and the integrated amount lamp 25 are sequentially turned on, and each setting is performed. You can do it.

Therefore, when setting the flow rate, the display changeover switch 26 is pressed so that the flow lamp 23 is turned on, and then the setting is performed by pressing the setting switch 6a. As a result, the set value is displayed on the display unit 11.

The display range is from 0.0 to 1200 ml /
h (~ 999.9: 0.1 ml / h step) (100
0: 1 ml / h step), the minimum flow rate is set to 0.0, and a wide injection range can be set. In addition, guarantees can be made for each type of syringe from each manufacturer. Also, when the flow rate set value is “0”, the buzzer issues a one-shot notification so that it cannot be started.

Further, even when the flow rate set value exceeds the flow rate range in which the drive can be performed, the buzzer does not issue a one-shot alarm to start.

Further, in order to set the integrated amount, after the display changeover switch 26 is pressed to turn on the integrated lamp 25, the setting switch 6a is turned while watching the display section 11 shown in FIG. Press to set.

The display range of the integrated amount at this time is 0.0 to
The flow rate is 999.9 ml (0.1 ml steps), and the minimum flow rate is 0.0. The integration is performed from the pulse count value of the encoder fixed to the output shaft of the motor 35, while the fast-forward switch 30 is pressed. The fast-forward amount that is fast-forwarded afterwards is added.

The injection amount is set based on the weight;
0.0 Kg (0.1 Kg step), drug amount; 0.0
-300.0 mg (0.1 mg steps), solution volume;
0.0-300.0ml (0.1ml step), γ
Amount: 0.00 to 50.00γ (μg / Kg / min)
(0.01 γ step).

The minimum flow rate is displayed from 0.0, and when a body weight, a drug amount, a solution amount, and a γ amount are input, the flow rate is automatically calculated and displayed, and starts at the displayed flow rate. I can do it. The result of this calculation is
Settable flow rate (0.1 ml / h or more, 1200 ml / h
If the flow rate deviates from the following, the flow rate display on the display unit 11 becomes a non-numeric "----" display. I can't start.

On the other hand, when the calculation result is within 1200 ml / h, the calculation result is displayed, but the calculation result is 300.1 ml / h or more, and the type of the syringe is 10 to 30 ml / h.
When it is automatically detected that the value is cc, the buzzer issues a one-shot notification so that it cannot be started even if the start switch 29 is pressed.

Next, when the fast-forward switch 30 is pressed, the flow rate of the liquid is increased.
200ml / h, 500ml / h for 30cc,
400ml / h for 20cc, 10cc syringe
In this case, the liquid is sent at 300 ml / h.

The display range of the scheduled amount setting is 0.0 to 9
99.9ml (0.1ml step), minimum flow rate →
0.0, and the operation can be selected by an internal selection switch. And the scheduled amount = 0.0
In this case, when the start switch 29 is pressed, the buzzer issues a one-shot notification and the scheduled amount lamp 24 of the scheduled amount LED blinks so that the start cannot be started.

When the scheduled amount <= integrated amount, the LED of the scheduled amount lamp 24 flashes and a buzzer sounds to prevent the operation from continuing. Also, when the scheduled amount <= integrated amount during injection, the LED of the scheduled amount lamp 24 flashes, a buzzer is sounded, and the operation automatically switches to the KVO operation. At this time, the flow rate is KVO (Keep Bain Open)
(0.1 ml / h), the sound is muted when the stop / mute switch 28 is pressed once. There is a re-alarm during the continuation of the KVO operation, and the operation stops when the stop switch 28 is pressed again.

On the other hand, the initial display when the power of the apparatus is turned on is "0" ml except in the memory mode.

The priority order of the ringing sounds is basically (a) occurrence of blockage, disengagement of the syringe, disengagement of the clutch,
(B) Battery voltage drop (2 minutes, 4 minutes, 6 minutes, 8 minutes,
(10 minutes or more), (c) push-off notice warning (remaining amount notice warning), (d) prioritized sound is set to be higher in order of the forgotten start sound. When multiple alarms are generated, the alarms are sequentially switched to higher ones. Similarly, when multiple alarms occur during silencing, a high-priority alarm is issued, and key clicks and one-shot alarms are issued during intermittent occurrences such as a forgotten sound. Is designed to interrupt and ring.

On the other hand, referring again to FIG. 2, the operation of the operation indicator 7 is as follows: (a) During normal operation, the built-in light emitting diode 7a is operated at four different speeds corresponding to the set flow rate.
7d blinks green sequentially in the clockwise direction. (B) While the operation is stopped, the green light turns off except for the red lighting at the time of an alarm. (C) When the start is forgotten, all of the light emitting diodes 7a to 7a to
7d flashes red. (D) When an external communication is received, it blinks green for a moment.

The use of the above-described syringe pump will be described with reference to FIGS. As a preparation, first check the tools, and then install the syringe pump 1 and the attached pole clamp.
(Not shown), AC power cable (not shown) and infusion stand
(Not shown), the syringe (not shown) containing the drug solution, and the indwelling needle (not shown) are checked to make sure that they are all the same.

Thereafter, the pole clamp is fixed to the infusion stand, and the pole clamp is firmly fixed to the infusion stand. For this purpose, the fixing screw of the pole clamp is inserted into the screw hole at the bottom of the syringe pump and fixed. Next, an AC power cable is connected to the AC inlet 8 on the right side of the main body, and the plug is connected to an AC100V with a ground terminal.
To the outlet.

When the AC power supply is connected, the battery lamp 17 lights up, indicating that the internal battery is being charged.

Therefore, when the power is turned on by pressing the power switch 15 for about one second to turn on the power, all the lamps are turned off.
Flashes twice and the buzzer sounds again to perform self-check automatically.

At this time, while the AC / DC lamp 16 is turned on, the display lamps 23, 2
4, 25 light up. The preset syringe maker is displayed on the display section 11 of the flow rate / planned quantity / integrated quantity.
It is displayed numerically for seconds. The syringe maker setting label is affixed to the syringe pump used,
Make sure that the syringe maker setting label matches the syringe maker set on the main unit.

If the syringe maker is not appropriate, a maker name is set and input in a maker name input section (input means) 40.

After the lapse of a predetermined time, the number of the syringe maker on the display section 11 of the flow rate / planned quantity / integrated quantity disappears, and "0.0" is displayed on the display section 11. At this time, the operation indicator 7 is turned off.

On the other hand, the display lamp 18 of the type of the syringe prompts the user to set a syringe by displaying that no syringe (not shown) is mounted in a state where all four built-in display lamps are blinking.

The setting of the syringe is performed when all of the above displays can be confirmed.

When the syringe is connected to the injection line (tube) and the syringe filled with the drug solution in an aseptic environment, the syringe body is set on the stage 2 a and engaged with the clamp 5.

Subsequently, a syringe flange (not shown) is set in the slit 2c in order to set the syringe flange (not shown) in the slit 2c. Then the syringe body S
Is set on the syringe stage 2a, and then the clamp 5 is rotated in a predetermined direction, the locked state is released and the syringe is clamped, and the syringe diameter (syringe capacity) is set by the set syringe diameter detecting means (not shown). ) Is detected.

Subsequently, the clutch lever of the slider assembly is pushed to release the clutch and move the slider. When the clutch lever of the slider is pushed at this time, the slider can be moved by hand.

When the clutch lever is released after the pusher of the syringe contacts the slider assembly, the right and left hooks automatically hold the pusher.
That is, when the clutch lever is released, the hook of the slider is in a state of pinching the pusher of the syringe.

Thereafter, the syringe is fixed by the clamp 5 as described above. After setting the syringe as described above, priming is performed.

This priming must be performed before puncturing the patient. When the fast-forward switch 30 is pressed, the operation indicator 7 is rotated and displayed, the pump operation is disclosed, and the drug solution comes out from the tip of the indwelling needle. When the fast-forward switch 30 is kept pressed to send the chemical solution to the tip of the indwelling needle, the integrated amount lamp 25 blinks.

Further, a display unit 11 for the flow rate, the planned quantity, and the integrated quantity.
During fast-forwarding, the integrated amount lamp 25 flashes, and the priming amount is displayed on the display unit 11 for the flow rate, the planned amount, and the integrated amount. This priming amount is added to the integrated amount in 0.1 ml steps. Here, by pressing the integration clear switch 27, the integration amount can be cleared to "0".

This priming is important to eliminate the gap between the syringe and the main body so that the working surface of the slider assembly 50 of the main body comes into contact with the presser SP of the syringe without any gap. I do.

After the above priming is completed, the setting input is performed with the setting switch 6a (injection volume ml, injection speed ml / h).
At this time, it is first confirmed that the flow lamp 23 is turned on. When the flow lamp 23 is not lit, the display changeover switch 26 is pressed to bring the flow lamp 23 into a lit state.

Thereafter, the key of the setting switch 6a (▲ /
Press ▼) to set the flow rate per hour (ml / h).

The numerical value increases or decreases when the ▲ key of the setting switch 6a is pressed, and decreases when the ▼ key is pressed. Further, when the ▲ / ▼ keys of the setting switch 6 are simultaneously pressed while the stop / mute switch 28 is pressed, the numerical value is rapidly changed in the upper digit.

Regarding the type of syringe and the maximum flow rate, the maximum flow rate that can be set is set according to the type of syringe. For example, a maximum flow rate of 1500 ml with a 30 ml syringe is set.
It has become. Therefore, when a value larger than the maximum flow rate is set and the start switch 29 is pressed, the flow rate set value flashes and the injection is not started, so the setting is completed again and the setting is completed.

Based on the setting input of the injection pattern (program injection such as intermittent injection, flow rate, etc.), a warning notice position is calculated in the control unit (CPU).

When the setting of the injection pattern is completed as described above, it is confirmed that the main body 1 is in a stopped state, the indwelling needle is punctured into the arm or the like of the patient. Do the injection. For this, injection is started when the start switch 29 is pressed. Since the operation indicator 7 is turned on and turned, the injection of the chemical solution can be confirmed from a distance by turning on and off.

If the injection is not started within about two minutes after the setting of the flow rate after the syringe is set in the syringe pump 1, a buzzer sounds to notify the user of the forgotten start. Therefore, the stop / mute switch 28
When you press, the buzzer stops sounding.

When changing the injection pattern (flow rate) during the injection, the injection is temporarily stopped to stop the injection, and then the setting switch 6a is used to reset the setting. At this time, when the stop / mute switch 28 is pressed, the operation indicator 7 is turned off.

After the injection is started, in order to confirm the integrated amount, when the display changeover switch 26 is pressed, the integrated amount lamp 25 is turned on. Then, the integrated amount from the start of the injection is displayed on the display unit 11 for the flow rate, the planned amount, and the integrated amount.
It is displayed for about 15 seconds in steps.

To clear the integrated amount, stop /
After pressing the mute switch 28 to stop the main body 1, press the display changeover switch 26 to display the integrated amount, and press the integrated clear switch 27 for about 1.5 seconds. The integrated amount of the integrated amount display section 11 is cleared to “0.0 ml”. When the pusher position detected by the pusher position detecting means (detector) including the potentiometer comes to a predetermined position, the operation indicator 7 turns red and an alarm is issued together with the buzzer.

When the predetermined amount of the drug solution has been injected, the stop state is confirmed and the syringe is removed. For this purpose, the clamp 5 is pulled up upward and turned and held by about 90 degrees. Then, the clutch lever 5 of the slider 50
2 and press the left and right hook members 53 and 54 to open the syringe. Thereafter, when the power switch 15 is not used again, the power switch 15 is kept pressed for about 2 seconds or more to be turned off.

Although the desired function can be sufficiently achieved by the syringe pump having the above functions, a more effective chemical liquid injection can be performed by the gamma injection setting function.

For this purpose, when the display ON / OFF switch 10a is kept pressed for about 2 seconds or more, the gamma injection setting screen 10 is turned on, and the gamma injection can be performed. Subsequently, when the item switch 10b is pressed, the gamma setting screen changes. Each time the item switch 10b is pressed, the gamma amount, weight,
The amount of drug and the amount of solution are displayed blinking. The portion where the display is blinking is an item whose setting can be changed. By turning the setting dial 6 while the desired item is displayed, the numerical value on the gamma setting setting screen 10 is changed to set the numerical value. .
By pressing the key of the setting switch 6a while pressing the stop / mute switch 28, each step value can be rapidly changed. The gamma injection setting screen 10 automatically calculates and displays the flow rate based on the set gamma amount, body weight, medicine amount, and solvent amount.

As the setting of the special function, the setting of each mode can be changed as required by operating the changeover switch inside the main body. As these special functions, the planned amount of the display unit 11 for the flow rate / planned amount / integrated amount can be changed between the standard mode and the planned amount mode. In the standard mode, each time the display changeover switch 26 is pressed, the flow rate and the integrated amount are displayed in this order, and the set amount cannot be set.

When the mode is switched to the preset amount mode by operating the changeover switch inside the main body, the display on the display section 11 displays the flow rate, the preset amount, and the integrated amount in this order, and the preset amount can be set. To set the scheduled amount, the display changeover switch 26 is pressed to turn on the scheduled amount lamp 24, then the setting switch 6a is pressed, and after confirming the set value, the confirming switch 6B is pressed for several seconds to set the scheduled amount. This setting can be changed in 0.1 ml steps. When the scheduled amount is set and the injection is started, when the integrated amount reaches the scheduled amount, the scheduled amount lamp 24 flashes and a buzzer sounds.

When the predetermined amount is set as described above, the KVO function of the injection of the chemical is continued at a flow rate of 0.1 ml. If the user wants to check on the way, pressing the stop / mute switch 28 turns on the operation indicator 7 and stops the buzzer. At this time, the KVO function continues, and when the stop / mute switch 28 is pressed again, the operation indicator 7
Is turned off, the keep-vein open function is released, the operation is stopped, and the injection in the scheduled amount mode ends.

The re-alarm can be switched between the standard mode and the mute mode. The operation indicator 7 flashes red and the buzzer sounds. If the alarm state is not released for more than two minutes after the buzzer is silenced, the buzzer sounds again. It is possible to set a standard mode and a mute mode in which the alarm function does not operate even if the alarm state continues for 2 minutes or more.

The warning for forgetting to start can be changed between the standard mode and the mute mode, the operation indicator 7 flashes red, and the buzzer sounds. Is sounded, and a mode for notifying that the user has forgotten to start and a mute mode can be set to a mode in which the forgetting to start alarm function does not operate even if the stopped state continues for 2 minutes or more.

The syringe maker can be changed by an internal changeover switch, but this special function cannot be set normally because careless care may cause an accident.

The setting of the blockage detection pressure level and the setting of the buzzer volume are performed by pressing the stop / mute switch 28 and the display changeover switch 26. First, to change the setting of the blockage detection pressure level, when the display changeover switch 26 is simultaneously pressed while pressing the stop / mute switch 28, "PrES" is displayed on the flow rate / planned amount / integrated amount display section 11, and the setting mode is set. become. When the display changeover switch 26 is released and pressed while the stop / mute switch 28 is pressed as it is, the print characters "L", "M", and "H" in the vicinity of the closing pressure set value lamps 19a, 19b, and 19c are sequentially displayed. When the desired setting is obtained, the finger is released from all the switches, the stop / mute switch 28 is pressed, and the integration clear switch 27 is pressed, whereby the blockage detection pressure level can be set.

To change the setting of the buzzer volume, simultaneously press the stop / mute switch 28 and simultaneously press the accumulation clear switch 27, and the display section 11 of the flow rate / planned quantity / integrated quantity is displayed.
“BEL * 2” is displayed and the setting mode is set. Release the integration clear switch 27 while pressing the stop / mute switch 28 as it is and press it to display “bEL:
1], “bEL: 2”, “bEL: 3” and the buzzer volume changes according to the loudness, medium, and low. When the desired volume is reached, release the finger from all the switches to set the buzzer volume. Do.

The power-concentrated box allows use with a DC power supply. In this case, the AC power cable is
Confirm that it is disconnected from the main body, and connect a DC cable to the DC connector 9 on the right side of the main body. Subsequently, when the power switch 15 is turned on, the AC / DC lamp 16 is turned on to supply DC power.

When neither the AC power nor the DC power is supplied, the battery is automatically switched to the built-in battery, the AC / DC lamp 16 is turned off, and the built-in battery can be used continuously for about two hours. The built-in battery is either AC power or D
It is charged when the C power supply is connected. During this charging, the battery lamp 17 is turned on to display the remaining amount of the battery at three levels. As a guideline for the remaining battery power, when all three lamps are on, it can be used for about 80 minutes or more, and when two lamps are on, the operating time is about 30 minutes or more. When only one is lit, it can be used for about 15 minutes or more.
If all three are flashing, only two or one light up indicates that the battery has deteriorated.

When the remaining amount of the built-in battery is further reduced, the battery alarm lamp 22 flashes and a buzzer sounds.
Use by connecting to the power supply of C.

The noise margin is assumed to be, for example, a power impulse of 2
V, 500 nSec, radiation; 1 KV, 3 directions were satisfied. Furthermore, the portable telephone (5 W) is designed to withstand use even in the vicinity. The static noise margin does not malfunction at 10 KV and does not break at 15 KV, so that the noise standard is domestic; VCIM Group 1 Class A, and overseas: FCC Prat. 18 and CIS
PR 11 (IEC601-1-2) and VEDIN5
7871 was satisfied.

The type of lightning protection is CLASS * I (3KV
TYPE CF (ground leakage; 0.5 mA or less)
Domestic; JIS T1001, T1002 and overseas; IE
C601-1 was satisfied.

The chemical resistance was not wiped with alcohol, but the outer layer was made to ABS grade V0 so as to have the chemical resistance of alcohol level, and the back side printing was performed so that the inscription, printed characters, display, etc. would not be lost. And dealt with.

The driving thrust (pressing force of the pusher) is about 15 Kg · f at the maximum and withstands about 20 Kg · f, and the machine (feed) accuracy can be made high accuracy within ± 1% by actual measurement. In addition, guarantees can be made for each type of syringe manufacturer.

Specifically, by actually measuring the amount of movement of the slider, (1) flow rate <1.0 ml / h 60 minutes (long-term); ± 5% or less (1) 1.0 ml / h ≦ flow rate <5.0 ml / h h Observation window for 2 minutes; ± 2%
Less than and 60 minutes (long-term); ± 1% or less (5) 5.0 ml / h ≦ flow rate 2 minute observation window; ± 1%
I did it below.

Further, the discharge amount was measured so that the flow rate accuracy could be as high as ± 3%, so that each type of each manufacturer could be guaranteed.

{1.0 ml / h ≦ flow rate <5.0 ml / h 2 minute observation window; ± 5%
(1) 1.0 ml / h ≦ flow rate 60 minutes (long-term); ± 3% or less (2) It was confirmed that 95% or more was obtained 10 minutes after the start.

The standard of occurrence of the remaining amount alarm is 10 cc:
0.5 ml, 20 cc: 1.0 ml, 30 cc: 1.0
ml, 50 cc: 1.0 ml.

The γ amount display section 10 is a liquid crystal with a backlight (yellow or green). This is a numeric display with seven segments. Body weight / Kg / drug amount / mg / solution amount ml / γ amount / μg / Kg / min can be displayed, body weight: 7 SEG 4 digits + decimal point 1 SEG, drug amount: 7 SEG
4 digits + decimal point 1 SEG, solution amount; 7 SEG 4 digits + decimal point 1 SEG, γ amount; 7 SEG 4 digits + decimal point 1 SEG. When the normal injection mode is selected, the entire screen is turned off.

The flow rate / integrated quantity / scheduled quantity display section 11 is an easy-to-read LED display, and includes 4 digits of 7 SEG and 1 SE of decimal point.
When G and the γ mode is set, the display is automatically switched to the flow rate display. In addition, when the display of the integrated amount or the planned amount is displayed, the flow rate display is sequentially switched according to the set value during the γ mode setting,
When left for about 15 seconds, the display automatically switches to the flow rate display.

An alarm is generated at the time of Er *, CPU runaway, switch operation, and self-check. The alarm has an easy-to-understand tone and does not cause any discomfort, and is compatible with overseas standards and can be switched in three levels of volume (panel operation). In addition, the storage of the set volume and the display of the volume level at the time of setting are enabled. The maximum volume is 65 dB or more 1 m away, and self-excited (to alert when CPU runs away)
I have to.

The timbre has three frequencies (approximately 2 to 4 KHz), and the CPU can output a PWM signal, and an alarm (→ PWM output, watchdog → hard oscillation). This volume switching procedure is as follows: (1) In the alarm state (except for voltage drop and remaining amount), switching is not possible and press accumulation clear. (2) Each time the switch is pressed while pressing the stop switch, the middle is increased. → small → medium →
(Changes to 1.5 seconds for the buzzer) (3) Synchronize with the buzzer, the flow rate is displayed on the flow rate display section at 7 Seg, medium = "b-2",
Large = "b-3" and small = "b-1". (4)
The result is written in the E2PROM.

FIG. 3 is a plan view of an operation panel according to one embodiment of the present invention when the display panel 11 is inverted by 180 degrees. All the components described above are the same and are denoted by the same reference numerals. The display panel can be set at any angle (0 to 1).
Although it may be rotated at 80), it is rotated (reversed) by 180 degrees from the viewpoint of operability, ease of design, and visibility.

FIG. 4 is a plan view of an operation panel according to another embodiment of the present invention when the display panel 11 and operation switches are rotated (reversed) by 180 degrees. The same components as those described above are denoted by the same reference numerals.

FIG. 5 shows another embodiment of the present invention in which the display panel 11 is rotated (reversed) by 180 degrees so as to have a predetermined inclination angle so that it can be easily attached and detached. Are configured so that they can be arbitrarily adjusted so that they can be easily viewed. The same components as those described above are denoted by the same reference numerals.

FIG. 6 is a plan view of an operation panel according to another embodiment of the present invention when the entire operation panel 2f is rotated (reversed) by 180 degrees. The same components as those described above are denoted by the same reference numerals.

[0116]

As described above, the present invention relates to a medicine injection device provided with an operation switch, an operation display section, a display panel, and the like, wherein at least one of the operation switch, the operation display section, and the display panel is provided with the medicine injection apparatus. Since the medicine injection device is characterized in that it can be changed to an arbitrary direction with respect to the device main body, the operator can easily perform a setting input operation and an operation check from any position.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a syringe pump body of the present invention during normal use.

FIG. 2 is a plan view of the operation panel during normal use.

FIG. 3 is a plan view showing an embodiment of the present invention.

FIG. 4 is a diagram showing another embodiment of the present invention.

FIG. 5 is a view showing another embodiment of the present invention.

FIG. 6 is a diagram showing another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Syringe pump main body, 2 ... Upper cover, 3 ... Lower cover, 4 ... Rubber seal, 5 ... Clamp, 6a ... Setting switch, 7 ... Operation indicator, 7a-7d ... Light emitting diode, 8 ... AC inlet, 9 ... DC Power connector, 10
... Gamma setting display section, 11 ... Flow rate / planned quantity / integrated quantity display section, 12 ... External communication connector, 13 ... Nurse call connector, 15 ... Power switch, 16 ... AC / DC lamp, 17 ... Battery lamp, 18 ... Syringe display lamps, 19a to 19c: blockage lamp, 21: remaining amount alarm lamp, 22: battery alarm lamp, 23: flow rate lamp, 24: scheduled amount lamp, 25: integrated amount lamp, 2
6: changeover switch, 27: totalization clear switch, 2
8 ... Stop / mute switch, 29 ... Start switch, 30 ...
Fast-forward switch, 52 ... clutch lever

Claims (6)

[Claims] 1. A medicine injection device comprising an operation switch, an operation display section, a display panel, and the like, wherein at least one of the operation switch, the operation display section, and the display panel includes:
A medicine injection device characterized in that it can be changed in any direction with respect to the medicine injection device main body. 2. The drug injection device according to claim 1, wherein the operation switch, the operation display section, and the display panel can be turned 180 degrees with respect to the drug injection device body. 3. The medicine according to claim 1, wherein the operation switch, the operation display section, and the display panel are detachable from the medicine injection device main body and can be turned 180 degrees. Infusion device. 4. The operation switch, the operation display section, and the display panel are provided at an arbitrary inclination angle with respect to the medicine injection device main body, and are detachable and can be inverted by 180 degrees. The drug injection device according to claim 1, wherein: 5. The liquid crystal display according to claim 1, wherein said operation switch, said operation display section, and said display panel are liquid crystal.
The drug injection device according to any one of the above. 6. The drug injection device according to claim 1, wherein the drug injection device is a syringe pump.