JPS63135178A - Automaic liquid drug injection apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Field of application for CIe industry] The present invention is an automatic injection device that manually injects an appropriate amount of a medicinal solution into a syringe. An object of the present invention is to provide an automatic injection device for a liquid drug that can be injected into a syringe without error.

[Background of the invention]

Generally, injecting a drug into a syringe is done by inserting the tip of the syringe into the drug container and pulling the piston. This was done while reading the scale.

However, according to this conventional method of injecting drug solutions, it is almost impossible for a visually impaired person to inject insulin, which is used for diabetes treatment, under self-control. Even if it was possible to inject the drug, it was not possible to judge the amount of the drug.

[Purpose of the invention]

Therefore, the present invention has been made by focusing on the problems of the conventional art.It solves the problems of the conventional art and makes it possible for even visually impaired people to reliably inject the appropriate amount of medicinal liquid into a syringe. To provide an automatic injection device for sacrificial fluid that can be used in a hospital and can streamline work by eliminating the trouble of injecting a medicinal solution into a syringe even in a hospital.

[Means for Solving and Improving the Problems] In order to achieve this object, the automatic injection device for chemical liquid according to the present invention includes a circuit board disposed within a casing, and a substantially central shaft of the casing. A syringe fixing stand formed, a drug solution container socket formed above the casing, and a card insertion formed below the casing into which a card is inserted, which has holes for drug solution overload data and a switch. and a drive source for operating the syringe fixing stand.

[Function] By using a device like the one described above, even visually impaired people can inject the appropriate amount of medicine into a syringe without error, and if it is installed in a hospital, it will be easy for doctors and nurses to use. This will make work more efficient.

(Example) Next, an example of implementation of the present invention will be described in detail with reference to FIGS. 1 to 5B.

FIG. 1 is a cross-sectional view of the automatic injection device for chemical liquid according to the present invention, W
Figure S2 is a front view of the human device, and numeral 1 in the figure is the casing. A printed circuit board 2 on which a CPU, etc. is mounted is fixedly disposed inside the casing 1, and the printed circuit board 2 is equipped with a power supply connector 3, with an A
ACloo by code 5 with C adapter 4 interposed
5V is supplied from V to the power supply connector 3 to operate a power switch 6, and this power switch 6 drives a motor 7.

Further, a fixing base 9 for a syringe 8 is provided approximately at the center of the casing 1.
This fixing base 9 is provided with an insertion groove 9 for the syringe 8.
It has a pair of flanges 9b and 9b forming a cylindrical shape 9a, and an opening/closing cover 9C when installed, and an eccentric cam is actuated by a rotary lever 10 whose tip protrudes outside the casing 1 to lock the syringe 8. It has become a thing.

In addition, reference numeral 11 in the figure is a liquid medicine container socket in which a liquid medicine container 12 is set, and a plurality of types of liquid medicine container sockets 11 having inner diameters that match the external shape of the liquid medicine container 12 to be set are prepared so as to be freely replaceable. The bottom surface of the container is provided with an air release needle pointing upward, which is inserted into a stopper that seals the opening of the drug container 12 and adjusts the pressure inside the drug container 12.

On the other hand, reference numeral 13 in the figure is an insertion part for a card 15 equipped with sensors 14a and 14b. It has a structure that allows it to be inserted diagonally downward. Also, the card 15 has a cutout at one corner so that the direction of insertion can be checked, and the holes for data and switching are staggered so that the mechanism will not operate even if it is inserted in the wrong direction. That's what I mean. In addition, 16 in the figure
is a clamping portion having elasticity for clamping the syringe 8;
Reference numeral 17 denotes a buffer spring for moving the syringe fixing table 9 up and down to pull the piston of the syringe 8 and injecting the drug solution into the syringe 8.

3 is a block diagram showing the hardware for operating the automatic chemical injection device according to the present invention. The operation is controlled by a CPU 18 mounted on the printed circuit board 2, and this CPU 18 includes mechanical sensors and Reading sensors j4a@14b are connected to turn amplifiers 19a and 19b and latches 20a and 20b, respectively, and the rotation speed of motor 7 is also read. Further, the CPU 18 uses ROMs 21a, 21 . A melody IC 23 is connected via a latch 22 in order to notify the operator of the set and operation status with sound, and a melody or alarm corresponding to the set situation is emitted from the speaker 24. It becomes.

Furthermore, FIG. 4 shows a flowchart showing the basic operation of the automatic drug injection device according to the present invention, and FIG.
FIG. A and FIG. 5B are flowcharts showing more detailed operations. First, the basic operation (outline) will be explained based on FIG. 4. When the power switch 6 is turned on,
Mechanism initialization, that is, the syringe fixing stand 9 is located at the home position, the (location) of the drug solution container (medicine bottle) 12 and the syringe 8 is checked, and the presence of the card 15 is confirmed. After that, when the syringe 8 is set on the syringe fixing stand 9, the drug solution container (medicine bottle) 12 is set in the drug solution container socket 11, and the card 15 is inserted into the card insertion part 13, the motor 7 is driven and the drug solution is transferred to the syringe 8. is injected into. During this injection operation, various checks are performed, and then a melody (1) expressing a proper operating state is emitted. When the appropriate amount of drug solution is injected into the syringe 8, the motor 7 stops, the melody (1) turns off, and the syringe fixing stand 9
The movement Ik (rotation a of the motor 7) and data value are checked, and if OK, a melody (2) is emitted to indicate that the correct operation has been performed. Further, if there is an error during the above operation, an alarm (1) will sound, and if there is an error after the operation is completed, an alarm (2) will sound to notify that fact. Furthermore, after the motor 7 stops, a check is made to see if it is compatible with the second chemical solution, and if it is compatible, the process returns to the above-mentioned confirmation of card 15 (separate card), but if not, The procedure is completed by removing the drug solution container (medicine bottle) 12 from the drug solution container socket 11, then removing the syringe 8, and removing the card 15 to mechanically initialize. In addition, the operation described in Figure 5A,
To explain with reference to FIG. 5B, which continues from FIG. 5A, first, when the power switch 6 is turned on.

A check is made to see if a syringe 8 or a drug container (medicine bottle) 12 has already been set in the device (if any remain), and if they are present, an alarm (1) will sound in either case. (star) i) Return to position A of j[e. Syringe 8 and drug container (medicine bottle) 12
The motor 7 starts driving after it is confirmed that none of the above are set. After that, the syringe fixing table 9
A check is made to see if the has moved to the home position, and if not, a check is made to see if the state is within the pulse timer, and if it is still within the pulse timer, a check is made again to see if it is at the home position. Return to. Alarm (2) if not within pulse timer
The motor 7 is notified by sounding, the motor 7 is stopped, the presence or absence of a hard reset is checked, and if it is reset, the controller returns to the position A. Further, when it is confirmed that the syringe fixing table 9 has been moved to the home position, the motor 7 is temporarily stopped, and a check is made to see if the card 15 has been inserted.

When the insertion of the card 115 is confirmed, the data of the card 15 is read by the sensor 14aφ14b.

A check is made to see if the content of the read data is correct, and if not, an alarm (2) is sounded.
Return to position B to check the insertion of card 15 again. Syringe 8 if data check is correct
A check is made to see if the chemical liquid container (medicine bottle) 12 is set, and if both checks confirm that it is set, a melody (1) is emitted, indicating that the state is correct, and the motor 7 is turned on again. starts driving. Following the restart of the motor 7, the start position of the encoder is read and a check is made to see if an encoder pulse has been detected. If it cannot be detected, it is checked to see if it is within the timer, and if it is within the timer, the process returns to the encoder pulse detection check, but if it is not within the timer, the motor 7 is stopped and an alarm (2) is sounded. Check whether a hard reset has been performed or not, and if it has been reset, return to position A. In addition, if detected, it is checked whether the drive counts match or not, and if they match, a Medician (1) is used to notify that the chemical injection work has been completed.
Turn off. After the melody (1) is turned off, move the syringe fixing table 9! A check is made to see if the lJ amount is correct, and if it is not, an alarm (2) will sound and the process will return to position A after waiting for a hard reset. If the amount of movement is correct, a melody (2) is emitted to notify that the injection work of the drug solution has been completed correctly, and a check is made to see if the drug solution container (medicine bottle) 12 is to be replaced.If not, the drug solution container is replaced. After checking whether the medicine bottle 12 and the syringe 8 have been removed, the melody (2) is turned off and returns to body A. In addition, in the case of replacement, it is checked whether or not the syringe 8 and the corresponding card 15 have been replaced, the melody (2) is turned off, the system returns to position C, and the injection work of the drug solution is started again. ing.

〔Effect of the invention〕

As described above, according to the automatic drug injection device of the present invention, even a visually impaired person can accurately inject an appropriate amount of drug into a syringe, thereby preventing unexpected accidents and making it easier for hospitals, etc. Once installed, work efficiency will be significantly improved.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an automatic drug injection device embodying the present invention, Fig. 2 is a front view, Fig. 3 is a block diagram of the same hardware, and Fig. 4 is a flowchart showing the basic operation. , FIG. 5A, and FIG. 5B are flowcharts showing the detailed operation. 1...Casing 2...Printed circuit board 7...
・Motor 8...Syringe 9...Syringe fixing stand lO
... Lever 11 ... Chemical solution container socket 12 ...
Chemical solution container 13...Card insertion part 14a, 14b...
・Sensor 15...Card Figure 1 Figure 2 Figure 5A Figure 5B

Claims (2)

[Claims] (1) A circuit board disposed inside the casing, a syringe fixing stand formed approximately in the center of the casing, a drug solution container socket formed above the casing, and a drug solution container socket formed below the casing to hold the drug solution. 1. An automatic drug injection device comprising: a card insertion section into which a card with holes for proper amount data and a switch is inserted; and a drive source for operating the syringe fixing stand. (2) The syringe fixing stand is connected to a lever whose tip protrudes outside the casing, the drug solution container socket is equipped with an air bleed needle, and the card insertion part is formed into a tapered shape with a plurality of sensors. An automatic injection device for liquid medicine according to claim 1, characterized in that: