JP3972295B2 - Liquid medicine automatic dispensing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid medicine automatic dispensing machine for automatically dispensing liquid medicine.
[0002]
[Prior art]
Conventionally, there are various automatic packaging machines for tablets and powders, and the speed of dispensing has been increased. However, there is no such dispensing machine for dispensing liquid medicine, and as shown in Japanese Patent Laid-Open No. 2000-140071, bottles 3 of liquid medicines (chemical solutions) stored in a plurality of shelves 2 of the liquid medicine dispensing unit 1 are used. The pharmacist searched the bottle 3 of the corresponding liquid medicine according to the prescription, and prepared several kinds of medicines by measuring with an appropriate graduated cylinder.
[0003]
In this prior art, in order to prevent the graduated cylinder from overturning during the blending, a magnet was arranged at the bottom of the graduated cylinder and the work table was made of a magnetic material such as iron to obtain an adsorption action to prevent the overturn. .
[0004]
[Problems to be solved by the invention]
In preparing liquid medicine, pharmacists were using a graduated cylinder to prepare several kinds of chemicals by eye-measuring while looking at a prescription from a doctor, and the work efficiency was low and inefficient. Also, there was no record of the multiple types of chemicals that were formulated, and no reconfirmation was possible.
[0005]
For this reason, this invention aims at automating the preparation of liquid medicine.
[0006]
[Means for Solving the Problems]
A liquid medicine automatic dispensing machine according to the present invention includes a medicine shelf in which a plurality of medicine containers are installed, an index rotary base having a plurality of pumps for transferring a chemical solution from the medicine container to a nozzle, and the index rotary base to a predetermined position. A medicine selection motor to be rotated, and a pump drive motor for driving one of the plurality of pumps, which are rotated by the medicine selection motor to reach a predetermined position by moving the index rotary base in a horizontal direction, are driven. (Claim 1).
[0007]
According to this, when a desired medicine on the index rotary base is selected, it is rotated to a predetermined position by the medicine selection motor. Then, the pump drive motor is displaced, the index rotary base pump is driven, and a chemical solution of a desired medicine is injected into the medicine bottle. By repeating this operation a plurality of times, a plurality of chemical solutions are automatically prepared.
[0008]
The rotational position of the index rotary base is controlled by the number of pulses to the medicine selection motor (Claim 2). Therefore, a desired medicine can be moved to a desired position.
[0009]
The pump includes a tube that is inserted into the chemical container and sucks the chemical solution, and a tube that injects the chemical solution into the drug bottle. Thereby, the chemical | medical solution of the chemical | medical agent at the time of the drive of a pump is inject | poured into a chemical | medical agent bottle via both tubes.
[0010]
The pump has an engaging claw for introducing a rotational force (Claim 4), and the pump drive motor is engaged with an engaging claw of the pump on its rotating shaft. It has a nail (claim 7). Thereby, the rotational force of a pump drive motor is transmitted by engagement of both engaging claws.
[0011]
The pump drive motor is moved in the horizontal direction by a solenoid (Claim 5), and its movement position is detected by a second sensor (Claim 6). Therefore, a desired pump can be driven by a pump drive motor that is moved by a solenoid.
[0012]
Driving of the medicine selection motor, the pump drive motor, and the solenoid is controlled by a control means (Claim 8). That is, a medicine selection motor is driven by the action of a control means such as a microcomputer to move a desired medicine container to a predetermined position, and a pump drive motor is driven to transmit a rotational force to a desired pump and to send a desired medicine. The number of revolutions is controlled by sucking the chemical from the container and injecting a predetermined amount into the medicine bottle. Furthermore, the solenoid is responsible for the horizontal movement of the pump drive motor.
[0013]
The control means includes an input device for inputting at least a name, a prescription day, a medicine name, and a prescription amount (Claim 9), and has a printer for printing at least the name, medicine name, and quantity corresponding to the input information. (Claim 10). For this reason, automatic injection of chemicals is performed, and the names of the injected chemicals are recorded and recorded, and the preparation status can be confirmed after operation.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
1 to 4, the liquid medicine automatic dispensing machine 1 has a case 2, and a caster 3 is attached to the bottom surface so that it can move. This liquid medicine automatic dispensing machine 1 uses a cylindrical index rotary base 4 as viewed from above. The index rotary base 4 is composed of a large diameter portion 5a on the upper side and a small diameter portion 5b on the lower side, and the small diameter portion 5b. Is fixed to a fixed base 36 described below via a bearing 6 so as to be freely rotatable.
[0016]
A medicine shelf 9 is arranged above the index rotary base 4 via a support column 8. When viewed from above, the medicine shelf 9 has a notch 10 at the center as shown in FIG. 3, and eight circular recesses 13 for placing eight medicine containers 12 are formed at equal intervals with equal angles. Has been. A support plate 14 for supporting a chemical container (medicine bottle) 12 placed above the chemical shelf 9 is attached to the chemical shelf 9 via a support column 15, and eight semicircular cutouts 16 are formed on the support plate 14. Is formed. A belt 17 is attached to the outer peripheral end surface of the support plate 14 to prevent the medicine container 12 from falling.
[0017]
The pump 19 is a so-called tube pump. When the rotor rotates, the contact point with the tube gradually moves, and thus has a structure capable of transferring a chemical solution. A rotating shaft 21 that rotates the rotor protrudes to the outside, and the protrusion An engaging claw 22 is attached to the end. The pump 19 is inserted into and attached to the above-described index rotary base 4 at eight holes 20 formed at equal intervals with equal angles. Of course, the number of pumps is eight. The positions of the pumps 19 and the corresponding chemical containers 12 are displayed clockwise from the front position from the chemical position numbers 1 to 8 for convenience, and symbols (1) to (8) are attached to FIGS. .
[0018]
A tube 24 a is connected to the suction side of the pump 19, its tip is inserted into the medicine container 12, and a tube 24 b is connected to the discharge side, and its tip is connected to the nozzle 25 for injection into the medicine bottle 34. Yes. The nozzle 25 is attached to a tube holder 26 fixed to the index rotary base 4, and the medicine bottle 34 is attached to a medicine bottle receiver 39 in the front position.
[0019]
The medicine selection motor 27 is a so-called servo motor and is attached to a base plate 28 fixed to the case 2, and a gear 30 is attached to a rotation shaft 29 of the medicine selection motor 27. The gear 30 of the medicine selection motor 27 meshes with a large-diameter gear 31 fixed to the index rotary base 4, and the index rotary base 4 is appropriately rotated by a rotational force from the medicine selection motor 27. The medicine selection motor 27 oscillates an encoder output from the medicine selection motor 27 for rotation speed control, and compares it with an output (pulse) from the control circuit 44 to determine a rotational position. That is, the medicine selection motor 27 is feedback-controlled.
[0020]
The pump drive motor 35 is a so-called servo motor, is provided on a slide table 37 so as to be movable in a horizontal direction on a fixed table 36 fixed to the base plate 28, and engages with an engaging claw 22 of the pump 19 on a rotating shaft. A pawl 38 is attached. 3 and 4, the pump drive motor 35 is advanced by the solenoid 40 and retracted by the return spring 43, and the position of the pump drive motor 35 is detected by the second sensor 41. . Reference numeral 42 denotes a stopper capable of adjusting the displacement position of the pump drive motor 35.
[0021]
Further, the pump drive motor 35 oscillates the encoder output from the pump drive motor 35 and controls the rotational speed control, and compares it with the output from the control circuit 44 to determine the transfer amount of the chemical solution. Since the discharge amount per pump is 0.7 cc to 0.8 cc, if 10 cc is required, the pump is rotated 14 to 12 times.
[0022]
The control circuit 44 employs, for example, a microcomputer, and includes a central processing unit (CPU), a read only memory (ROM), a random accelerator memory (RAM), an input / output port (I / O), an A / D converter, and the like. As shown in FIG. 5, the origin position information of the index rotary base 4 from the first sensor 33, the position information of the pump drive motor 35 from the second sensor 41, and the motors 27, 35 encoder outputs are input, and from the input device 45, the name, the number of days of prescription, the name of each drug solution, the prescription amount, and the like are input.
[0023]
From the control circuit 44, the rotation number to the medicine selection motor 27, the rotation number to the pump drive motor 35, and the ON / OFF signal to the solenoid 40 are output. Then, it is output to a printer 46 as an output device, and the name, prescription date, name of each medicine, disposal amount, etc. are printed.
[0024]
Next, an example of the control operation executed in the control circuit 44 is shown in the routine shown in FIG. FIG. 6 is a main control routine shown in the flowchart diagram, and will be described below with reference to this flowchart diagram. The liquid medicine automatic dispensing flow started from step 100 proceeds to step 120 when the power is turned on in step 110. . In step 120, the origin of the index rotary base 4 is returned, and the process proceeds to step 140.
[0025]
In step 140, the contents of dispensing are registered from the input device 45, and if completed, the process proceeds to step 160. In this step 160, an operation of injecting a desired amount of chemical solution from the desired medicine and container into the medicine bottle is performed. In step 190, if the next dispensing is to be performed, the process returns to step 140. If not, the main routine flow ends.
[0026]
A specific subroutine for returning to the origin is a flowchart as shown in FIG. 7. To explain this, in step 121, the origin return button 50 is manually turned on by a pharmacist or the like. Then, the pump drive motor 35 is retracted by the return spring 43 (step 122), and the retract is confirmed by the second sensor 41 (step 123).
[0027]
Thereafter, the current value of the pump drive motor 35 is reset in order to grasp the rotation speed (step 130), and the medicine selection motor 27 rotates (step 124), thereby rotating the index rotary base 4 and the first sensor 33. Is confirmed to return to the origin position (step 125). When this is completed, a movement instruction is issued to the medicine position number 1 (step 126), and the medicine position number 1 (1) of the index rotary base 4 is moved to, for example, the front position and confirmed (step 127). When the position number 1 (1) reaches the front position, the rotation of the index rotary base 4 is stopped. The origin position and the medicine position number 1 (1) are the same position.
[0028]
The dispensing content registration subroutine is a flow chart as shown in FIG. 8, which will be described starting with step 140 and registering the name of the prescriber (step 141). That is, the name is input by the katakana keyboard of the input device 45 (step 142). When the registration of the name is completed (step 143), the process proceeds to registration of the prescription days (step 144).
[0029]
In the registration of the prescription days, the days are input by the katakana keyboard of the input device 45 (step 145). Thereafter, the number of days of disposal is confirmed (step 146), and the prescription amount for one day of the medicine to be dispensed is input (steps 147, 148).
[0030]
Specifically, when a detail button is pressed, a detail setting screen is displayed, and a prescription amount for one day of medicine to be dispensed is input. Then, the disposal amount of the medicine is confirmed (step 149), it is checked whether registration of all medicines is completed, and if there is a shortage, the input is confirmed again (step 150).
[0031]
If registration of all the medicines is completed, the pharmacist presses the registration button and the dispensing content registration is completed (step 151). However, if there is another person's registration, the process returns to the above-described step 141, and the same operation is repeated to register the dispensing contents.
[0032]
The dispensing operation subroutine is a flow chart as shown in FIG. 9, which will be described below. Starting from step 160, a number prescribed by a registered person is selected and input. Then, the number of the prescription content that has been instructed is lit and displayed (step 162). Then, the operation button is pressed (step 163), and the name, the number of days, and the amount (cc) of each medicine are displayed on the operation screen and confirmed (step 164). If the content is acceptable, an instruction for setting content OK is given (step 165), and the total amount of liquid medicine is displayed.
[0033]
The pharmacist sets a medicine bottle 34 that is sufficient for the total amount of liquid medicine displayed (step 166). Then, when the operation start button is manually pressed, the dispensing operation of the machine indicated by the following subroutine is started (step 170), and the dispensing content is printed out to the printer 46 and is finished (step 171). If there is an error in the contents shown in step 165, the data contents are corrected (steps 167 and 168).
[0034]
The dispensing operation subroutine of the machine is a flow chart as shown in FIG. 10, which will be described. Starting from step 170, the medicine position number for dispensing start is set to No. 1 (step 171). If there is a medicine to be dispensed in the medicine placed on the medicine shelf 9 (step 172), the pump drive motor 35 moves backward, and the medicine selection motor 27 is driven to the front position in the embodiment of the medicine container 12, It moves through the index rotary base 4. Whether or not the front position has been reached is confirmed by the encoder output (step 175), and when the front position is reached, the pump drive motor 35 moves forward. If there is no medicine to be dispensed in the medicines placed on the medicine shelf 9, the number 1 is added to the medicine position number 1 and the number 2 is selected, and the selection starts again.
[0035]
Advancement of the pump drive motor 35 is performed by the solenoid 40, and the engagement claws 22 and 38 are engaged (step 176). When this advance is completed, the rotational speed of the pump is calculated from the prescription amount of the medicine. That is, since the discharge amount per rotation of the pump of the example is about 0.7 cc to 0.8 cc, the number of rotations can be obtained by dividing the prescription amount by 0.7 to 0.8. If the rotation speed of the pump 19 is obtained here, the pump drive motor 35 is rotated (step 178).
[0036]
When the pump 19 is rotated at the calculated number of revolutions, the chemical solution is injected from the chemical container into the chemical bottle 34 through the tubes 24a and 24b. Further, it is determined whether there is the next medicine. That is, it is determined whether or not the medicine position number 8 {circle over (8)} is reached. (Step 180).
[0037]
If the next medicine position number 8 (8) has not been reached, the number (2) to (7) obtained by adding 1 to the current medicine position number is changed to (7) (step 181). repeat. If there is no next medicine, the index rotary base 4 is rotated, medicine position number 1 (1) is rotated to the front position (step 182), the position is confirmed (step 183), and this flow is finished ( Step 184).
[0038]
【The invention's effect】
As described above, according to the present invention, when a desired medicine is selected from the medicines placed on the index rotary base, the medicine selection motor is driven and rotated to a predetermined position. And a pump drive motor displaces, a pump is driven, and the chemical | medical solution of a desired chemical | medical agent is inject | poured in a medicine bottle. By repeating this operation a plurality of times, a plurality of medicines are automatically prepared. In addition, the name of the compounded medicine and other necessary information are printed by a printer, so that the name of the medicine prepared after the compounding can be reconfirmed, which ensures security.
[Brief description of the drawings]
FIG. 1 is a front view of a liquid medicine automatic dispensing machine according to the present invention.
FIG. 2 is a cross-sectional view taken along the vertical direction of the above.
FIG. 3 is a top view of the same.
FIG. 4 is a cross-sectional view cut in the horizontal direction of the above.
FIG. 5 is a control configuration diagram of the above.
FIG. 6 is a flowchart of a main routine of the present invention.
FIG. 7 is a flowchart of the origin return subroutine.
FIG. 8 is a flowchart of a dispensing content registration subroutine as described above.
FIG. 9 is a flowchart of the dispensing operation subroutine described above.
FIG. 10 is a flowchart of the machine control operation subroutine of the above.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Liquid medicine automatic dispensing machine 4 Index rotary base 9 Chemical shelf 12 Chemical container 14 Support plate 19 Pump 21 Rotating shaft 22 Engagement claw 24a, 24b Tube 26 Tube holder 27 Chemical selection motor 30 Gear 31 Gear 32 Dock 33 1st sensor 34 Medicine bottle 35 Pump drive motor 36 Fixing base 38 Engaging claw 39 Medicine bottle holder 40 Solenoid 41 Second sensor 44 Control circuit 45 Input device 46 Printer

Claims (10)

An index rotary base having a plurality of pumps for transferring a chemical solution from the chemical container to the nozzle;
A chemical selection motor that rotates the index rotary base to a predetermined position;
A liquid medicine automatic dispensing system comprising: a pump drive motor for driving one of the plurality of pumps, which is rotated by the chemical selection motor, to reach a predetermined position by a horizontal movement. Machine.         The liquid medicine automatic dispensing machine according to claim 1, wherein the rotation position of the index rotary base is controlled by the number of pulses of a medicine selection motor.         The liquid medicine automatic dispensing machine according to claim 1, wherein the pump includes a tube that is inserted into the chemical liquid container and sucks the chemical liquid, and a tube that injects the chemical liquid into the chemical bottle.         The liquid medicine automatic dispensing machine according to claim 1 or 3, wherein the pump has an engaging claw for introducing a rotational force.         The liquid medicine automatic dispensing machine according to claim 1, wherein the pump drive motor is moved in the horizontal direction by a solenoid.         The liquid medicine automatic dispensing machine according to claim 1 or 5, wherein the pump drive motor has a horizontal movement position detected by a second sensor.         7. The liquid medicine automatic dispensing machine according to claim 1, wherein the pump drive motor has an engaging claw engaged with an engaging claw of the pump on a rotating shaft thereof. .         The liquid medicine automatic dispensing machine according to claim 1, further comprising control means for driving and controlling said medicine selection motor, pump drive motor and solenoid.         The liquid medicine automatic dispensing machine according to claim 8, wherein an input device for inputting at least a name, a medicine name, a prescription amount, and a prescription day is connected to the control means.         9. The automatic liquid medicine dispensing machine according to claim 8, wherein a printer for printing at least a name, a medicine name, a prescription amount, and a prescription day is connected to the control means.

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