JP2014076267A - Weighing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weighing apparatus with improved convenience.SOLUTION: A weighing apparatus includes: a plurality of medicine placement units 2011; a first electric balance 2030, a second electric balance 2031 and a third electric balance 2032; and a calculation unit 2036. The medicine accommodated in a medicine bottle 2020 is placed on the plurality of medicine placement units 2011 which are disposed on a flat surface. The first electric balance 2030, the second electric balance 2031, and the third electric balance 2032 detect placement and detachment of the medicine on the respective medicine placement units 2011. The first electric balance 2030, the second electric balance 2031, and the third electric balance 2032 are arranged in a triangle so as to measure the total weight of the medicine placed on the plurality of medicine placement units 2011. The calculation unit 2036, when a detached medicine is placed again, calculates the change in the weight of the medicine before and after the detachment, by obtaining a measurement result of the total weight of the medicine from the sum of the measurement results of the three measurement units.

Description

  The present invention relates to a weighing device.

When applying a drug to each patient, a pharmacist, a nurse, a doctor, etc. may mix and dispense a plurality of drugs according to a prescription or the like. When such dispensing is performed, it is necessary to accurately measure and mix that each of a plurality of drugs is in an amount determined by a prescription.
Therefore, in Patent Document 1, for example, when dispensing a liquid drug with a syringe or when a solution to be added to a powdered drug container is sucked with a syringe in dispensing, the weight of the syringe before suction and the weight of the syringe after suction It was determined whether or not an accurate amount of liquid was sucked into the syringe.

JP 2010-179039 A

However, the conventional apparatus has the following problems.
That is, in the above-described conventional apparatus, every time the medicine is operated, it is necessary to move the medicine container or syringe from the placement place onto the balance, measure the weight change, and move again to the original placement place. When there are a plurality of drugs to be dissolved or mixed, it is very troublesome.
An object of the present invention is to provide a weighing device with improved convenience in consideration of the above-described conventional problems.

  In order to achieve the above object, the weighing device of the first invention includes a plurality of placement units, a detection unit, three measurement units, and a calculation unit. In the plurality of placement units, the medicines accommodated in the medicine container are placed and arranged on a plane. The detection unit detects the placement and removal of the medicine in each placement unit. The three measurement units are arranged in a triangular shape for measuring the total weight of the medicines placed on the plurality of placement units. When the removed medicine is placed again, the calculation section calculates the change in the weight of the medicine before and after the removal by obtaining the measurement result of the total weight of the medicine from the sum of the measurement results of the three measurement sections.

As a result, the weight change can be automatically measured by simply returning it to the placement section after operating the medicine. Therefore, each time the medicine is operated, the medicine container or syringe is moved from the placement location onto the balance. Thus, it is not necessary to measure the change in weight and move it again to the mounting place, and it is possible to improve convenience.
Further, since the total weight of the medicines placed on the plurality of placement parts is measured, it is not necessary to provide a measurement part for each placement part, and the cost can be reduced.

The weighing device of the second invention is the weighing device of the first invention, and the three measuring units are at the same position as the outermost mounting unit among the plurality of mounting units or from the outermost mounting unit. Is also provided at an outer position.
Thereby, the number of measurement parts can be set to three and can be made smaller than the number of mounting parts, and the cost can be reduced.

A weighing device according to a third aspect is the weighing device according to the first or second aspect, wherein the detection unit is also used as a measurement unit, and detection of placement and removal of a drug is performed by each of the three measurement units. This is based on the change in weight.
Thereby, the place where the medicine is placed and removed can be specified based on the weight change of the three measuring units. Since these three measuring units also measure the total weight of the medicine, there is no need to provide a separate detecting unit, the number of parts can be reduced, and the structure can be simplified.

A weighing apparatus according to a fourth aspect of the present invention is the weighing apparatus according to any one of the first to third aspects of the present invention, wherein the placement unit has a regulation unit that regulates the place where the medicine is placed.
As a result, the place where the medicine is placed can be limited, and the place where the medicine is placed and the place where the medicine is removed can be detected more accurately based on the measurement value changes of the three measuring units.
A weighing apparatus according to a fifth aspect of the present invention is the weighing apparatus according to the first aspect of the present invention, and includes a medicine detection unit and a measurement operation control unit. The drug detection unit detects the type of drug. The measurement operation control unit associates the place of the placement unit with the medicine placed on the placement unit based on the detection result by the agent detection unit.

Thereby, the mistake of the placement place of the medicine by the worker can be prevented, and the convenience for the worker can be improved.
A weighing device according to a sixth invention is the weighing device according to the fifth invention, wherein the change in the weight of the medicine is caused by an operation on the medicine before and after the removal, and the medicine associated with the place of the placement portion Based on the change in weight, a determination unit is provided that determines whether the operation is an operation in accordance with a preset procedure relating to preparation of a medicine.

As a result, it is possible to automatically determine which of the plurality of medicines causes the change in the measured value of the total weight, and the convenience for the operator can be further improved. .
Moreover, since an operation error or the like can be automatically determined, an operation error or a weighing error can be reduced.

A weighing apparatus according to a seventh aspect of the invention is the weighing apparatus according to the first aspect of the invention and includes a display unit that displays a preset procedure relating to preparation of a medicine.
Thereby, since the operator can visually recognize the procedure regarding preparation of a medicine, the convenience at the time of performing a dispensing operation can be improved.
The weighing device of the eighth invention is the weighing device of the seventh invention, and changes the content of the display unit based on the change in the weight of the medicine.

In order to change the display contents, remove the hand from the article (medicine, infusion, necessary equipment for preparation, etc.) held by hand during the preparation and perform the operation to change the display. Then, it is not necessary to visually confirm the position of the article again and hold it by hand, so that convenience can be improved and operational errors can be reduced.
In addition, it is possible to display information necessary for preparation work such as procedures, drugs / infusions during operation, test results / weighing results / calculation results, etc., thus improving convenience and reducing operational errors. It becomes possible.

  According to the present invention, a weighing device with improved convenience can be provided.

The perspective view of the weighing apparatus in Embodiment 1 concerning this invention. The perspective view of the weighing apparatus in Embodiment 1 concerning this invention. The partial expansion perspective view of the weighing apparatus in Embodiment 1 concerning this invention Control block diagram of weighing device in embodiment 1 according to the present invention Flow chart of a dispensing method using the weighing device according to the first embodiment of the present invention. The figure which shows an example of the display of the prescription content confirmation process in the dispensing method using the weighing apparatus of Embodiment 1 concerning this invention. FIG. 1 is a flow chart of a drug preparation process of a dispensing method using the weighing device according to the first embodiment of the present invention. The figure which shows an example of the display of the medicine preparation process in the dispensing method using the weighing apparatus of Embodiment 1 concerning this invention. The flowchart of the melt | dissolution process of the dispensing method using the weighing apparatus in Embodiment 1 concerning this invention. The figure which shows an example of the display of the solution injection process in the dispensing method using the weighing apparatus of Embodiment 1 concerning this invention. The flowchart of the transfer process of the dispensing method using the weighing apparatus in Embodiment 1 concerning this invention. The figure which shows an example of the display of the transfusion process in the dispensing method using the weighing apparatus of Embodiment 1 concerning this invention. (A), (b) The perspective view of the weighing apparatus in the modification of Embodiment 1 concerning this invention. The flowchart of the medicine preparation process of the dispensing method using the weighing apparatus of the modification of Embodiment 1 concerning this invention. The flowchart of the melt | dissolution process of the dispensing method using the weighing apparatus of the modification of Embodiment 1 concerning this invention The flowchart of the transfer process of the dispensing method using the weighing apparatus of the modification of Embodiment 1 concerning this invention. The perspective view of the weighing apparatus in Embodiment 2 concerning this invention. The perspective view of the weighing apparatus in Embodiment 2 concerning this invention. The elements on larger scale of the weighing apparatus in Embodiment 2 concerning this invention Schematic diagram of the weighing device according to the second embodiment of the present invention. Control block diagram of weighing device in embodiment 2 according to the present invention Flow chart of a dispensing method using the weighing device according to the second embodiment of the present invention. The figure which shows an example of the display of the prescription content confirmation process in the dispensing method using the weighing apparatus of Embodiment 2 concerning this invention. Flow chart of drug preparation process of dispensing method using weighing device in embodiment 2 according to the present invention The figure which shows an example of the display of the medicine preparation process in the dispensing method using the weighing apparatus of Embodiment 2 concerning this invention. (A) The figure which shows operation in the medicine preparation process of the dispensing method using the weighing apparatus of Embodiment 2 concerning this invention, (b) The measurement value change of the 1st electronic balance by operation of Fig.26 (a) is shown. (C) The figure which shows the measurement value change of the 2nd electronic balance by operation of Fig.26 (a), (d) The figure which shows the measurement value change of the 3rd electronic balance by operation of Fig.26 (a) Flow chart of the solution injection step of the dispensing method using the weighing device according to the second embodiment of the present invention. The figure which shows an example of the display of the solution injection process in the dispensing method using the weighing apparatus of Embodiment 2 concerning this invention. (A) The figure which shows operation in the solution injection process of the dispensing method using the weighing apparatus of Embodiment 2 concerning this invention, (b) The measured value change of the 1st electronic balance by operation of FIG. 29 (a) is shown. The figure which shows, (c) The figure which shows the measurement value change of the 2nd electronic balance by operation of Fig.29 (a), The figure which shows the measurement value change of the 2nd electronic balance by operation of Fig.29 (a) The flowchart of the transfer process of the dispensing method using the weighing apparatus in Embodiment 2 concerning this invention. The flowchart of the transfer process of the dispensing method using the weighing apparatus in Embodiment 2 concerning this invention. The figure which shows an example of the display of the transfusion process in the dispensing method using the weighing apparatus of Embodiment 2 concerning this invention. (A) The figure which shows operation in the transfer process of the dispensing method using the weighing apparatus of Embodiment 2 concerning this invention, (b) The measurement value change of the 1st electronic balance by operation of FIG. 32 (a) is shown. (C) The figure which shows the measurement value change of the 2nd electronic balance by operation of Fig.32 (a), (d) The figure which shows the measurement value change of the 3rd electronic balance by operation of Fig.32 (a) The figure which shows the state which measures the weight of an infusion pack using the weighing apparatus of Embodiment 2 concerning this invention. (A), (b) The figure which shows the chemical | medical agent mounting part in the weighing apparatus of the modification of Embodiment 2 concerning this invention. The flowchart of the medicine preparation process using the weighing apparatus of the modification of Embodiment 2 of this invention Flow chart of a solution injection process using the weighing device according to the modification of the second embodiment of the present invention. Flow diagram of a transfusion process using a weighing device according to a modification of the second embodiment of the present invention Partial schematic diagram of a weighing device of a modification of the second embodiment of the present invention

Embodiments according to the present invention will be described with reference to the drawings.
(Embodiment 1)
The weighing device according to the first embodiment is used, for example, when preparing an infusion solution in which a plurality of drugs are mixed.
<1: Overall device configuration>
FIG. 1 is a perspective view of a weighing device according to Embodiment 1 of the present invention. FIG. 2 is a perspective view showing a state in which a drug bottle and an infusion pack are placed on the weighing device according to the first embodiment of the present invention.

  As shown in FIGS. 1 and 2, the weighing device according to the first embodiment includes a display unit 1 and a weighing unit 2. The display unit 1 is a touch panel or the like, and displays the preparation content, work procedure, preparation record, etc. when preparing a plurality of medicines according to a prescription etc., and at the same time, operates the weighing device by inputting from the panel. . The display unit 1 may be a combination of a display device such as an LCD and an input device such as a button or a pointing device instead of a touch panel. The weighing unit 2 measures the total weight of the drug to be placed, and determines whether or not the drug is being prepared according to the preparation content and work procedure displayed on the display unit 1.

[1-1: Overview Configuration of Weighing Device]
As shown in FIGS. 1 and 2, the weighing unit 2 includes five drug placement units 11 (11a, 11b, 11c, 11d, 11e) on which the drug bins 20a, 20b, 20c, 20d, and 20e are placed. In addition, an infusion placement section 12 for placing an infusion pack is provided. Moreover, the medicine instruction | indication lamp | ramp 13 (13a, 13b, 13c, 13d, 13e) is provided under each medicine mounting part 11 (11a, 11b, 11c, 11d, 11e). On the lower side of the infusion placement section 12, a power button 14, an infusion measurement start button 15, and an infusion instruction lamp 16 are provided in order from the right end.

  Next, the shape of the medicine placement portions 11a, 11b, 11c, 11d, and 11e will be described. Since the five drug placement units 11 have the same shape, the drug placement unit 11a will be described as an example. FIG. 3 is an enlarged view of the medicine placement unit 11a. As shown in FIG. 3, the medicine placement portion 11 a includes a placement surface 111 on which the bottom surface of the medicine bottle 20 abuts and a rear support portion 112 on which the side surface of the medicine bin 20 abuts. . The placement surface 111 is inclined downward toward the rear of the apparatus, and a rear support portion 112 is provided from the rear end of the placement surface 111 upward. The rear support portion 112 is formed with inclined portions 113 and 114 on the left and right so that the medicine bottle 20 is disposed in the center of the medicine placement portion 11. A switch 17 that is turned on when pressed is provided between the left and right inclined portions 113 and 114. That is, the medicine bottle 20 is arranged in a state where the side surface of the medicine bottle 20 leans against the rear support portion 112, and the switch 17 is provided at a position where the medicine bottle 20 leans. Therefore, when the medicine bottle 20 is placed, the switch 17 is turned on, and when the medicine bottle 20 is removed, the switch 17 is turned off. Similarly to the drug placement units 11a, 11b, 11c, 11d, and 11e, the switches 17a, 17b, 17c, 17d, and 17e are sequentially arranged from the left side in order to distinguish the switches 17 in the respective drug placement units. The switch 17 is a switch that is turned on when pressed, but a non-contact type switch such as an object detection center using light or ultrasonic waves may be used.

The infusion placement section 12 shown in FIG. 1 is formed so as to be inclined so that the rear side is positioned upward, and the infusion pack 21 is arranged as shown in FIG.
Each of the medicine instruction lamps 13a, 13b, 13c, 13d, and 13e is, for example, in a “no medicine” state when turned off, “waiting for a medicine set” when blinking yellow, and “during drug measurement” when illuminated in yellow. , Green lighting indicates “medicine present”, green blinking indicates “medicine operation waiting”, and “red blinking” indicates “error”.

The infusion measurement start button 15 is a button for starting measurement of the weight of the infusion pack 21.
The infusion instruction lamp 16 is, for example, turned off to indicate “no infusion”, blinking yellow to indicate “infusion measurement start waiting”, yellow to indicate “infusion measurement”, and green to “infusion”. It is set so that “waiting for infusion operation” is indicated by flashing green, and “error” is indicated by “flashing red”.

[1-2: Internal configuration of weighing device]
FIG. 4 is a schematic diagram for explaining the control of the weighing device according to the first embodiment.
As shown in FIG. 4, the weighing apparatus according to the present embodiment includes a first electronic balance 30, a second electronic balance 31, a switch operation detection unit 32, a measurement operation control unit 33, a dispensing procedure storage unit 34, and a measurement result storage unit. 35, a calculation unit 36, a determination unit 37, and a barcode reader 38.

  The first electronic balance 30 measures the total weight of the medicine bins 20a, 20b, 20c, 20d, and 20e placed on the medicine placing portions 11a, 11b, 11c, 11d, and 11e. That is, an electronic balance is not provided for each medicine placement unit 11, and one electronic balance is provided for five medicine placement units 11. The second electronic balance 31 measures the weight of the infusion pack 21 placed on the infusion placement unit 12. The switch operation detection unit 32 detects whether the switches 17 a, 17 b, 17 c, 17 d, and 17 e are on or off, and outputs the detection result to the measurement operation control unit 33.

  The dispensing procedure storage unit 34 stores a preparation procedure for preparing a plurality of medicines according to a prescription or the like. The barcode reader 38 reads information on barcodes attached to the medicine bottles 20a, 20b, 20c, 20d, 20e, the infusion pack 21, and the like, and outputs the result to the measurement operation control unit 33. This information includes information on the type of medicine. The preparation procedure may be stored in the dispensing procedure storage unit 34 by reading an application label (bar code) including information on the preparation procedure with the barcode reader 38. This barcode may be affixed to the infusion pack 21.

  The measurement operation control unit 33 includes a first electronic balance 30, a second electronic balance 31, drug instruction lamps 13a, 13b, based on the preparation procedure, the detection result by the switch operation detection unit 32, information on pressing the infusion measurement start button 15, and the like. Control of operations of 13c, 13d, 13e, the infusion instruction lamp 16, the display unit 1 and the like is performed. For example, in a state where all the medicine bottles 20a, 20b, 20c, 20d, and 20e are placed, the total weight is measured by the first electronic balance 30, and the operator applies a predetermined amount from the medicine bottle 20a using a syringe or the like. The weight before and after the suction of the medicine bottle 20a can be measured by sucking and returning to the medicine placing portion 11a and then measuring again with the first electronic balance 30.

The measurement result storage unit 35 stores measurement results obtained by the first electronic balance 30 and the second electronic balance 31. The calculation unit 36 performs a predetermined calculation from the measurement result stored in the measurement result storage unit 35 and outputs the calculation result to the determination unit 37. For example, the suction amount can be calculated by calculating the difference from the weight data before and after the suction.
The determination unit 37 determines whether or not the dispensing procedure is being followed according to the calculation result by the calculation unit 36 and outputs the determination result to the measurement operation control unit 33. For example, it is determined whether or not the suction amount of the medicine from the medicine bottle 20a calculated by the calculation unit 36 matches the suction amount indicated in the dispensing procedure.

  An example of the plurality of placement units corresponds to the medicine placement unit 11 (11a to 11e) of the present embodiment, and an example of the detection unit corresponds to the switch 17 (17a to 17e) of the present embodiment. To do. An example of the measurement unit corresponds to the first electronic balance 30 of the present embodiment, and an example of the medicine detection unit corresponds to the barcode reader 38. An example of the medicine container corresponds to the medicine bottle 20 of the present embodiment.

In addition, when an anticancer agent or the like is prepared aseptically using the weighing device, it is desirable to install the weighing device inside a biohazard cabinet or the like and prepare the drug in an aseptic environment.
<2: Dispensing method>
Next, a dispensing method using the weighing device according to the first embodiment will be described.

[2-1: Overview of dispensing method]
FIG. 5 is a flowchart showing an outline of a dispensing method using the weighing device according to the first embodiment.
In the application reading step S <b> 1, the application label is read using the barcode reader 38. By this reading, the dispensing procedure is read and stored in the dispensing procedure storage unit 34.

Next, in the prescription content confirmation step S <b> 2, the measurement operation control unit 33 displays the prescription content read from the dispensing procedure storage unit 34 on the display unit 1.
Next, in the medicine assembling step S <b> 3, the medicine necessary for application is arranged in the medicine placing section 11 of the weighing unit 2.
Next, in the solution injection step S4, when a powdered drug is contained in the drug bottle 20, a solution such as physiological saline is injected.

Finally, in the transfer step S5, transfer from the medicine bottle 20 to the infusion pack 21 is performed.
Below, each process is demonstrated in detail.
[2-2: Prescription content confirmation process]
In the prescription content confirmation step S2, the prescription content is displayed on the display unit 1 for the operator to confirm. For example, “Xml of physiological saline is injected into the medicine bottle 20a, Yml of physiological saline is injected into the medicine bottle 20b, and after stirring, Zml is sucked from the medicine bottle 20a, Vml is sucked from the medicine bottle 20b, and from the medicine bottle 20c. The prescription content (preparation content of the drug) is displayed, such as “Wml suction..., And αml is diluted in the infusion pack 21”.

  FIG. 6 is an example of a prescription content confirmation process displayed on the display unit 1. As shown in FIG. 6, an identification number for identifying application is described in the application barcode display field 100. In the attribute information display column 101, information such as the patient's personal information (first name, last name, sex, ID number, date of birth, age, height, weight, body surface area) is described. In the process progress navigation column 102, progress information such as which process is currently performed among the above-described prescription content confirmation process S2, drug preparation process S3, solution injection process S4, and transfer process S5 is displayed. The progress is displayed by the current process being surrounded by a surrounding line 102a. Currently, since it is a prescription content confirmation process, the process is surrounded by a surrounding line 102a.

  Further, detailed information of each process is displayed below the process progress navigation column 102. As detailed information of each process, a prescription content tab 103, a drug assortment tab 104, a solution injection tab 105, and a transfer tab 106 are provided, and detailed information of each process is displayed on each tab. . Since it is a prescription content confirmation process now, the prescription content tab 103 is opened and the prescription content is displayed. For example, “For [Endoxan 500 mg / bottle], inject [10 ml / bottle] of the solution [saline solution] into one bottle and dissolve it into [Endoxan 100 mg / bottle]. In contrast, three bottles are prepared, and a solution [physiological saline] is injected into each bottle [5 ml / bottle] to dissolve. Then, 10 ml from [Endoxan 500 mg / bottle], 5 ml from 2 [Endoxan 100 mg / bottle], and 3 ml from the remaining [Endooxane 100 mg / bottle] into 200 ml / bag of Otsuka raw food Is displayed.

For example, when the operator presses the “prescription content confirmation” portion of the process progress navigation column 102, the confirmation is made, and the display content moves to the next medicine preparation step S3.
[2-3: Drug assembling process]
FIG. 7 is a flowchart showing the operation of the medicine arranging step S3.
When the prescription content is confirmed, in S11, the measurement operation control unit 33 causes the display unit 1 to display a medicine assortment display based on the dispensing procedure stored in the dispensing procedure storage unit 34. In the medicine assortment display, the type of medicine to be arranged and the place where the medicine is placed are displayed. For example, the medicine bottles 20a, 20b, 20c, 20d, and 20e and the infusion pack 21 are prepared, and the placement places are the medicine placement portions 11a, 11b, 11c, 11d, and 11e, and the infusion placement portion 12, respectively. Is displayed. FIG. 8 is an example of a display of the medicine preparation process displayed on the display unit 1. As shown in FIG. 8, since the current process is a medicine assembling process, the “medicine assembling” portion of the process progress navigation column 102 is surrounded by a surrounding line 102a. Then, a medicine assortment tab 104 is displayed. For example, “[Otsuka raw food 200 200 ml / bag] is placed on the infusion placement section 12, [Endoxan 500 mg / bottle] is placed on the medicine placement section 11 a, and the medicine placement sections 11 b and 11 c. , 11d is displayed with an instruction to “load 100 mg / bottle of endoxan”.

Next, when the worker prepares the displayed medicine and causes the barcode reader 38 to read the label (bar code) on the surface of the medicine bottle 20, the reading result is sent to the measurement operation control unit 33 in S12. .
Next, in S13, the measurement operation control unit 33 plans to prepare the types of medicines read by the barcode reader 38 from the dispensing procedure stored in the dispensing procedure storage unit 34 and the reading result by the barcode reader 38. It is determined whether the type of medicine. For example, when a label (barcode) attached to the surface of the medicine bottle 20a is read by the barcode reader 38, the measurement operation control unit 33 causes the medicine bottle from which the medicine bottle from which the barcode is read is to be prepared. It is determined whether any of 20a, 20b, 20c, 20d, and 20e.

  If the type of drug read by the barcode reader 38 does not match the type of drug scheduled to be collected, the display unit 1 displays an indication (S14) that an appropriate drug is prepared again because of an erroneous operation. The operator performs the barcode reading operation of the label of the correct medicine bottle 20. In addition, in order to show to an operator, control which makes all or any one of the chemical | medical agent instruction | indication lamps 13a-13e an error (red blinking) state may be performed.

  On the other hand, when the medicine read in S13 is included in the medicine to be prepared, in S15, the measurement operation control unit 33 places the medicine instruction lamp 13 corresponding to the medicine placement unit 11 on which the medicine bottle 20 is placed. To wait for the medicine set (lights up in yellow). For example, when [Endoxan 500 mg / bottle] is read, the medicine operation lamp 13a corresponding to the medicine placement unit 11a is lit yellow by the measurement operation control unit 33. In addition, control which changes the color of the column of the medicine currently instruct | indicating mounting from among the display content of the medicine arrangement | positioning tab 104 may be performed.

Subsequently, when the medicine bottle 20 is placed on the medicine placement section 11 corresponding to the worker according to the medicine instruction lamp 13, the switch operation detection section 32 detects that the switch 17 is turned on in S16.
When the operation of the switch 17 is detected by the switch operation detection unit 32, in S17, the measurement operation control unit 33 determines whether or not the medicine bin 20 is placed on the designated medicine placement unit 11. When it is not placed on the instructed medicine placement unit 11, since it is an erroneous operation, a display (S 18) indicating that the medicine bottle 20 is placed on the appropriate medicine placement unit 11 is performed again on the display unit 1. The medicine indication lamp 13 at the position where it is erroneously placed is put into an error state (flashing red). For example, when the medicine bin 20a is placed on the medicine placement section 11c, the switch 17c is operated, so that the measurement operation control section 33 determines that the medicine bin 20a is placed on the medicine placement section 11c, and places the placement. An error operation display indicating that the placement location is incorrect is performed, and the medicine instruction lamp 13c is flashed red. Then, when the worker places the medicine bin 20a on the medicine placement unit 11a, the determination of the medicine placement unit 11 is performed again in S17, and since this time it is placed on the correct medicine placement unit 11, the next The process proceeds to step S19.

  If it is determined in S17 that the placement of the medicine is appropriate, in S19, the measurement operation control unit 33 sets the medicine instruction lamp 13 corresponding to the medicine placement section 11 on which the medicine is placed (the green light is present). Control to the state. Control may be performed to change the color of the medicine column corresponding to the medicine placement unit 11 on which the medicine is placed in the display contents of the medicine assortment tab 104.

In S <b> 20, the measurement operation control unit 33 determines whether or not all the medicines scheduled to be arranged are placed. If not all of them are placed, the process waits until the next barcode of the medicine bin 20 is read. When the barcode is read, S12 to S20 are executed for the next medicine.
When all the scheduled medicines (medicine bottles 20a, 20b, 20c, 20d, 20e, and the infusion pack 21) are prepared by the above operation, the measurement operation control unit 33 uses the first electronic balance 30 to place the medicine placement unit 11a in S21. , 11b, 11c, 11d, and 11e, and the measurement result is stored in the measurement result storage unit 35. At the same time, the status display of the “medicine assortment” portion of the process progress navigation field 102 is changed to “completed”.

  In the above description, only the medicine bottle 20 is described. However, when the label (bar code) of the infusion pack 21 is read by the bar code reader 38 in S12, the infusion instruction lamp 16 enters the infusion set waiting state in S15. When the infusion pack 21 is placed on the infusion placement unit 12, the measurement operation control unit 33 controls the infusion instruction lamp 16 to be in the presence of infusion (green lighting) state in S16 by a change in the measured value of the second electronic balance 31. I do. Note that the measurement operation control unit 33 is instructed that the infusion pack 21 is placed on the infusion placement unit 12 by pressing the button or the like without using the change in the measurement value of the second electronic balance 31. May be. Further, as will be described later, when a switch such as the switch 17 is provided in the infusion placing part 12, the same control as that when placing the medicine bottle 20 can be used.

As described above, for example, as shown in FIG. 4, all of the medicine bottles 20 a, 20 b, 20 c, 20 d, 20 e and the infusion pack 21 are placed in the predetermined medicine placement units 11 a, 11 b, 11 c, 11 d, 11 e, 12. When placed, the medicine assembling process is completed. In the case of the example shown in FIG. 8, nothing is placed on the medicine placing portion 11e.
Further, in the medicine assembling process of the present embodiment, the medicine bottle 20 and the infusion pack 21 are not handled separately. However, after the placement of the medicine bottle 20 is completed, the step of placing the infusion pack 21 is performed. Anyway.

[2-4: Solution injection step]
FIG. 9 is a flowchart showing the operation of the solution injection step S4.
When the above-mentioned medicine preparation process is completed, the solution injection display is performed by the display unit 1 in S31. This is done for powdered drugs. For example, when the medicine in the medicine bottle 20a is a powder, a message “X mg of physiological saline is injected into the medicine bottle 20a, Ymg of physiological saline is injected into the medicine bottle 20b...” Is displayed. Note that the medicine bottle 20 containing the liquid medicine is not described in the above display.

  FIG. 10 is a diagram illustrating an example of the display of the solution injection process displayed on the display unit 1. Currently, since this is a solution injection step, the “solution injection” portion of the process progress navigation column 102 is surrounded by a surrounding line 102a. Then, the solution injection tab 105 is displayed. For example, “[Endoxane 500 mg / bottle] is dissolved by injecting [10 ml / bottle] of the solution [saline solution] into one bottle, and [Endoxan 100 mg / bottle] Dissolve the solution [saline] by injecting [5 ml / bottle]. "Is displayed.

  Next, in S <b> 32, the measurement operation control unit 33 puts the predetermined medicine instruction lamp 13 into a medicine operation waiting state (for example, green blinking) in accordance with the dispensing procedure stored in the dispensing procedure storage unit 34. For example, by causing the medicine instruction lamp 13a to blink green, the operation of injecting physiological saline into [Endoxan 500 mg / bottle] is prompted. In addition, control which changes the color of the column of the chemical | medical agent which is instruct | indicating the solution injection now among the display contents of the solution injection tab 105 may be performed.

Subsequently, when the operator removes the medicine bin 20 from the medicine placement unit 11, the switch operation detection unit 32 detects that the switch 17 is turned off in S33, and the detection result is measured by the measurement operation control unit 33. Sent to.
Then, in S34, it is determined whether or not the medicine bottle 20 has been removed from the medicine placement unit 11 in which the medicine instruction lamp 13 is in a medicine operation waiting (green blinking) state.

  When the medicine bin 20 is removed from the medicine placement section 11 other than the waiting state for medicine operation, an indication indicating that the medicine bottle 20 removed in S42 is returned to the original medicine placement section 11 because of an erroneous operation and an appropriate medicine again. The display unit 1 displays that the medicine bin 20 is to be removed from the placement unit 11, and the medicine instruction lamp 13 at the position where the medicine bin 20 is erroneously placed is put into an error state (red blinking). In addition, you may make a sound. For example, in a state where the medicine instruction lamp 13a is waiting for medicine operation (green blinking), when the medicine bottle 20c is removed from the medicine placement section 11c, the switch 17c is operated. It is determined that 20c has been removed from the medicine placement section 11c, an indication of an erroneous operation indicating that the removal location is wrong, an indication that the medicine bottle 20c is placed on the original medicine placement section 11c, and the medicine bin 20a as a medicine A display indicating that the medicine is to be removed from the mounting portion 11a is displayed, and the medicine instruction lamp 13c is blinking red. When the operator returns the medicine bin 20c to the original medicine placement section 11c and removes the medicine bin 20a from the medicine placement section 11a, the determination of the medicine placement section 11 is performed again in S34, and this time the correct medicine placement is performed. Since it is removed from the placement unit 11, the process proceeds to the next step S35.

  On the other hand, when the medicine bottle 20 is removed from the medicine placement unit 11 in the medicine operation waiting state, an erroneous operation display, a warning, or the like is not issued, and the operator injects the solution into the removed medicine bottle 20. After injecting the solution and stirring and mixing the drug and the solution, when the drug bottle 20 is placed on the drug placement unit 11, the switch 17 is turned on. Then, the switch operation detection unit 32 detects that the switch 17 has been turned on in S35, and the detection result is sent to the measurement operation control unit 33.

Then, in S36, it is determined whether or not the medicine bin 20 is placed on the medicine placement section 11 in which the medicine instruction lamp 13 is in a state of waiting for medicine operation.
When the medicine bin 20 is placed on the medicine placement section 11 other than the waiting state for medicine operation, since it is an erroneous operation, an indication that the medicine bottle 20 is placed on the appropriate medicine placement section 11 is displayed again in S43. 1 and the medicine indication lamp 13 at the position where the medicine is erroneously placed is put into an error state (flashing red). In addition, you may make a sound. For example, when the medicine bottle 20a is placed on the medicine placement section 11c in the state where the medicine instruction lamp 13a is waiting for medicine operation (green blinking), the switch 17c is operated. It is determined that the bin 20a has been placed on the medicine placement unit 11c, an error operation display indicating that the placement location is incorrect, and a display to place the medicine bin 20a on the medicine placement unit 11a are performed. The instruction lamp 13c is blinking red. Then, when the worker places the medicine bin 20a on the medicine placement unit 11a, the determination of the medicine placement unit 11 is performed again in S36, and this time, since it is placed on the correct medicine placement unit 11, the next The process proceeds to step S37.

  On the other hand, when the medicine bottle 20 is placed on the medicine placement section 11 waiting for medicine operation, no erroneous operation display, warning or the like is issued, and in S37, the measurement operation control section 33 causes the medicine bottle into which the solution has been injected. The 20 medicine instruction lamps 13 are set in a medicine measurement state (yellow light), and the first electronic balance 30 is operated. Then, the total weight of the medicines on the medicine placement units 11a, 11b, 11c, 11d, and 11e is measured, and the measurement result is stored in the measurement result storage unit 35. Since the electronic balance may take time until the measured value is stabilized, the medicine instruction lamp 13 is controlled to be in the medicine measurement state (lights yellow) during that time.

  Next, in S38, the calculation unit 36 calculates the difference between the total weight before the switch 17 is turned off and after the switch 17 is turned on. That is, the difference between the total weight before and after the physiological saline is injected into the medicine bottle 20 is calculated. By this calculation, the weight of the injected physiological saline is calculated. At the same time, control may be performed such that the weight of the injected solution is displayed on the solution injection tab 105. Alternatively, control may be performed such that the volume of the injected solution is calculated from the weight of the injected solution and the specific gravity of the solution and displayed on the solution injection tab 105.

  Subsequently, in S39, the determination unit 37 determines whether or not the amount has changed by an amount according to the dispensing procedure. In other words, depending on which switch 17 is turned on / off, it is detected how much physiological saline has been injected into which medicine bottle 20, so that the determination unit 37 is prepared according to the procedure relating to medicine preparation. It can be determined whether or not. Specifically, when it is determined that the change amount calculated in S38 is within the error range of the change amount scheduled in the dispensing procedure, the control process proceeds to S40. For example, as shown in FIG. 10, in the operation of injecting 10 ml of physiological saline, the weight increases by about 10 g when the operation is normally performed. In the case where the control process proceeds to S40, control may be performed to change the color of the column of the medicine into which the dissolution liquid has been injected among the display contents of the dissolution liquid injection tab 105.

  Then, in S40, it is determined whether or not the injection of the solution has been completed for all the drug bottles 20 that need to be injected. If there are other medicine bottles 20 that need to be infused with the solution, the control process returns to S32, and the medicine bottle 20 to be operated next is placed in the medicine placement section 11 on which the medicine bottle 20 is placed. The corresponding medicine instruction lamp 13 enters a medicine operation waiting state (green blinking). It should be noted that a timer or the like is provided so that if the corresponding switch 17 is not turned off for a predetermined time or longer after the medicine instruction lamp 13 is in a medicine operation instruction waiting state, control is performed so as to end abnormally. Good.

On the other hand, if it is determined in S39 that the amount of change is not within the error range, the process ends abnormally (S41). At this time, a display indicating an erroneous operation may be performed.
If it is determined in S40 that the injection of the solution has been completed for all the medicine bottles 20 that need the solution injection, the solution injection process is completed. At the same time, the status display in the “solution injection” portion of the process progress navigation column 102 is changed to “completed”.

In S41, when the process is abnormally terminated, a display such as redoing only the operation on the corresponding medicine bottle 20 may be performed.
[2-5: Transfusion process]
As an outline of the transfer step S5, one or a plurality of syringes are used to sequentially suck a predetermined amount of a drug from one or a plurality of drug bottles 20 into the syringe, and the drug in the syringe is then infused into an infusion pack 21. Inject.

FIG. 11 is a flowchart showing the operation of the transfer step S5. When the dissolution liquid injection process S4 is completed, or when all the medicine bottles 20 are liquid drugs and the dissolution liquid injection process S4 is not necessary, when the drug preparation process S3 is completed, the process proceeds to the display unit 1 in S51. The ordering procedure is displayed.
As a procedure of the transfer step, for example, a display indicating that “Zml suction from the medicine bottle 20a, Vml suction from the medicine bottle 20b, Wml suction from the medicine bottle 20c, ..., αml is diluted in the infusion pack 21” is performed. Is called.

  FIG. 12 is a diagram illustrating an example of a display of the transfusion process displayed on the display unit 1. Since it is currently a transfer process, the “transfer” part of the process progress navigation column 102 is surrounded by a surrounding line 102a. Then, a transfer tab 106 is displayed. For example, “10 ml from [Endoxan 500 mg / bottle], 5 ml from two [Endoxan 100 mg / bottle], 3 ml from the other [Endoxan 100 mg / bottle], and [Otsuka raw food 200 ml / Bag]. "Is displayed.

Thereafter, in S52, the measurement operation control unit 33 puts the medicine instruction lamp 13 corresponding to the medicine placement unit 11 on which the medicine bottle 20 to be aspirated first is placed in a medicine operation waiting state (green blinking).
Subsequently, when the operator removes the medicine bin 20 from the medicine placement unit 11, the switch operation detection unit 32 detects that the switch 17 is turned off in S53, and the detection result is measured by the measurement operation control unit 33. Sent to.

Then, in S54, it is determined whether or not the medicine bottle 20 has been removed from the medicine placement unit 11 in which the medicine instruction lamp 13 is in the medicine operation waiting state “green blinking”.
When the medicine bin 20 is removed from the medicine placement unit 11 other than the medicine operation waiting state, in S71, the measurement operation control unit 33 displays on the display unit 1 that the operation is erroneous, and displays that the suction operation is stopped and the removal. The indication that the medicine bin 20 is returned to the original medicine placement section 11 and the indication that the medicine bottle 20 is removed from the appropriate medicine placement section 11 are displayed again, and the medicine instruction lamp 13 is in an error state (flashing red). When necessary, a sound is emitted to stop the operator from performing the suction operation. For example, in a state where the medicine instruction lamp 13a is waiting for medicine operation (green blinking), when the medicine bottle 20c is removed from the medicine placement section 11c, the switch 17c is operated. It is determined that 20c has been removed from the medicine placement section 11c, and an erroneous operation display indicating that the removal place is wrong, a display indicating that the suction operation is stopped, and the medicine bottle 20c are placed on the original medicine placement section 11c. A message to the effect and a message to remove the medicine bin 20a from the medicine placement unit 11a are displayed, and the medicine instruction lamp 13c is flashed red. When the operator returns the medicine bin 20c to the original medicine placement section 11c and removes the medicine bin 20a from the medicine placement section 11a, the determination of the medicine placement section 11 is performed again in S54, and this time the correct medicine placement is performed. Since it is removed from the placement unit 11, the process proceeds to the next step S55.

  On the other hand, when the medicine bottle 20 is removed from the medicine placement unit 11 waiting for medicine operation, an erroneous operation display, a warning, or the like is not issued, and the worker is displayed on the display unit 1 from the removed medicine bottle 20. A predetermined amount is aspirated by a syringe. When the medicine bottle 20 from which a predetermined amount of medicine has been sucked is placed again, the switch 17 is turned on. Then, the switch operation detection unit 32 detects that the switch 17 has been turned on in S55, and the detection result is sent to the measurement operation control unit 33. In addition, control which changes the color of the column of the chemical | medical agent which is carrying out the aspiration instruction | indication among the display contents of the transfer tab 106, or may be performed may be performed.

Then, in S56, it is determined whether or not the medicine bottle 20 has been placed on the medicine placement section 11 in which the medicine instruction lamp 13 is waiting for the medicine operation.
When the medicine bin 20 is placed on the medicine placement section 11 other than the waiting state for medicine operation, since it is an erroneous operation, an indication that the medicine bottle 20 is placed on the appropriate medicine placement section 11 is displayed again in S72. 1 and the medicine indication lamp 13 at the position where the medicine is erroneously placed is put into an error state (flashing red). In addition, you may make a sound. For example, when the medicine bin 20a is placed on the medicine placement section 11c, the switch 17c is operated, so that the measurement operation control section 33 determines that the medicine bin 20a is placed on the medicine placement section 11c, and places the placement. An error operation display indicating that the placement location is incorrect and a display indicating that the medicine bin 20a is placed on the medicine placement section 11a are performed, and the medicine instruction lamp 13c is in a red blinking state. Then, when the worker places the medicine bin 20a on the medicine placement unit 11a, the determination of the medicine placement unit 11 is performed again in S56, and since this time it is placed on the correct medicine placement unit 11, the next The process proceeds to step S57.

  On the other hand, when the medicine bottle 20 is placed on the medicine placement unit 11 waiting for the medicine operation, no erroneous operation display, warning or the like is issued, and in S57, the measurement operation control unit 33 performs the medicine for which a predetermined amount of suction has been performed. The medicine indication lamp 13 in the bottle 20 is set to a medicine measurement state (lights up in yellow), and the first electronic balance 30 is operated. Then, the total weight of the medicines on the medicine placement units 11a, 11b, 11c, 11d, and 11e is measured, and the measurement result is stored in the measurement result storage unit 35.

  Next, in S58, the calculation unit 36 calculates the difference between the total weight before the switch 17 is turned off and after the switch 17 is turned on. That is, the difference between the total weight before and after the drug is sucked from the drug bottle 20 is calculated. This calculation calculates the weight of the aspirated drug. At the same time, a control may be performed so that the weight of the aspirated medicine is displayed on the transfer tab 106. Alternatively, control may be performed such that the volume of the aspirated drug is calculated from the weight of the aspirated drug and the specific gravity of the drug and displayed on the transfer tab 106.

  Subsequently, in S59, the determination unit 37 determines whether the amount has changed (decreased) in accordance with the dispensing procedure. If it is determined that the change amount is within the error range, the control process proceeds to S60. In the case where the control process proceeds to S60, control may be performed to change the color of the medicine column in which the drug solution has been aspirated in the displayed content of the transfer tab 106. Then, in S60, it is determined whether or not the suction from all the medicine bottles 20 has been completed. If there are other medicine bottles 20 that need to be sucked, the control process returns to S52, and the medicine corresponding to the medicine placement section 11 on which the medicine bottle 20 to be operated next is placed. The instruction lamp 13 enters a medicine operation waiting state (flashing green).

On the other hand, if it is determined in S59 that the change amount is not within the predetermined error range of the change amount, the operation ends abnormally with an erroneous operation display (S61). When the process ends abnormally in S61, a display such as redoing only the operation on the medicine bottle 20 corresponding to the display unit 1 may be performed.
If it is determined in S60 that the suction from all the medicine bottles 20 requiring suction has been completed, the control process proceeds to S62.

  In S62, the measurement operation control unit 33 controls the infusion instruction lamp 16 to wait for infusion measurement start (yellow blinking). The operator checks whether or not the infusion pack 21 is placed on the infusion placement section 12 according to the state of the infusion instruction lamp 16. If the infusion pack 21 has been removed from the infusion placement section 12 in any of the above steps, the infusion pack 21 is placed on the infusion placement section 12. The display unit 1 may display that the infusion pack 21 is to be placed on the infusion placement unit 12.

  Then, when the operator presses the infusion measurement start button 15, the measurement operation control unit 33 recognizes the button pressing operation in S63. Then, in S <b> 64, the measurement operation control unit 33 sets the infusion instruction lamp 16 in the infusion measurement state (yellow lighting), and the second electronic balance 31 measures the weight of the infusion pack 21 on the infusion placement unit 12. Then, the measurement result is stored in the measurement result storage unit 35.

Next, in S65, the measurement operation control unit 33 controls the infusion instruction lamp 16 to wait for an infusion operation (green blinking). Then, the operator lifts the infusion from the infusion placement section 12, injects and dilutes all the medicines in the syringe into the infusion pack 21, and places the infusion pack 21 on the infusion placement section 12 again.
Next, when the operator presses the infusion measurement start button 15 according to the operation procedure of the display unit 1, the measurement operation control unit 33 recognizes the button pressing operation in S66.

Then, in S67, the measurement operation control unit 33 sets the infusion instruction lamp 16 in the infusion measurement state (lights in yellow), and the second electronic balance 31 measures the weight of the infusion pack 21 on the infusion placement unit 12. Then, the measurement result is stored in the measurement result storage unit 35.
Next, in S68, the weight of the infusion pack 21 stored in the measurement result storage unit 35 in S64 (before injection) and the weight of the infusion pack 21 stored in the measurement result storage unit 35 in S67 (after injection). The calculation unit 36 calculates the difference. This calculation calculates the weight of the injected drug. At the same time, a control may be performed to display the weight of the injected medicine on the transfer tab 106. Alternatively, control may be performed such that the volume of the injected drug is calculated from the weight of the injected drug and the specific gravity of the drug and displayed on the transfusion tab 106. Alternatively, control may be performed such that the amount of the injected drug is calculated from the concentration of the injected drug and displayed on the transfer tab 106.

Subsequently, in S69, the determination unit 37 determines whether the amount has changed (increased) according to the dispensing procedure. When it is determined that the calculated change amount is within the predetermined error range of the change amount, the transfer step ends. At the same time, the status display in the “Transfer” portion of the process progress navigation column 102 is changed to “Done”.
On the other hand, if it is determined in S69 that the determination unit 37 has not changed by the amount according to the preparation procedure, the process ends abnormally (S70). If the process ends abnormally in S70, a procedure for correcting the drug amount may be displayed.

As described above, the transfer step is completed, and the preparation of the drug according to the patient's application is completed.
In addition, by recording the measurement result, it can be used as evidence for preparation of a drug.
As described above, since the change in weight can be automatically measured simply by returning to the original drug placement unit 11 after the drug is operated, the drug bottle or the syringe is placed each time the drug is operated. It is not necessary to move the weight from the place onto the balance and measure the weight change, and move to the original placement place again, thereby improving the convenience. Then, using the result calculated by the calculator 36, the operator or another confirmer can confirm the accuracy of the operation.

[Other Embodiments]
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.
(A)
In the above embodiment, the weighing device includes the display unit 1 and the weighing unit 2 that display the procedures related to the preparation of the drug. However, the present invention is not limited to this. For example, the display unit 1 is not provided. Also good. In this case, although the convenience for the operator is somewhat inferior, the procedure may be indicated by the display of the medicine instruction lamps 13a to 13e and the infusion instruction lamp 16.

(B)
In the above embodiment, the two electronic balances of the first electronic balance 30 and the second electronic balance 31 are provided. However, the medicine bottle 20 placed on the medicine placement portions 11 a to 11 e and the infusion placement portion 12. And only one electronic balance for measuring the total weight of the infusion pack 21 may be provided. Even in this case, the total weight including the infusion pack 21 may be measured using the first electronic balance 30 in S21, and the solution injection step can be performed in the same manner. Also in the transfer step, the total weight before and after injection into the infusion pack 21 can be measured using the first electronic balance 30, and whether or not the correct amount has been injected into the infusion pack 21 from the weight difference before and after injection. Can be determined.

(C)
In the above embodiment, the switch is not provided in the infusion placement part 12, but a switch may be provided as in the medicine placement part 11. In addition, the switch of the infusion placement unit 12 may be a switch that detects pressing, a non-contact type switch such as an object detection center using light or ultrasonic waves, and the measurement value of the second electronic balance 31 is used as a switch. May be. Thereby, even if the infusion measurement start button 15 is not provided, the weight of the infusion pack 21 can be automatically measured by detecting the switch. Note that only one electronic balance for measuring the total weight of the medicine bottles 20 and the infusion packs 21 placed on the medicine placement units 11a to 11e and the infusion placement unit 12 is provided, and the infusion placement unit 12 also has a switch. When (an example of a detection unit) is provided, the infusion pack 21 also corresponds to an example of a drug container, and the infusion placement unit 12 corresponds to an example of a placement unit.

(D)
In the above embodiment, the weighing device includes the drug placement units 11a to 11e and the infusion placement unit 12. However, the infusion placement unit 12 may not be provided. For example, when medication is given to a patient who has already been instilled, the medicine mixed in the syringe is directly injected into the infusion from the syringe, or the medicine from the syringe connected to a three-way valve or the like provided in the infusion tube This is because the drug is not diluted into the infusion pack 21 and the infusion placement part 12 may not be used.

In this case, the second electronic balance 31 or the like may not be provided. For example, FIG. 13A and FIG. 13B show a weighing device having a configuration in which the infusion placement unit 12, the second electronic balance 31, and the like are not provided. Fig.13 (a) is a perspective view of the weighing apparatus of such a structure, FIG.13 (b) is a perspective view which shows the state which mounted the chemical | medical agent bottle 20 in Fig.13 (a).
That is, the weighing device includes at least a plurality of medicine placement units 11 on which medicines accommodated in a medicine container are placed, and a switch 17 that detects placement and removal of the medicines in each medicine placement unit 11. And the first electronic balance 30 for measuring the total weight of the medicines placed on the plurality of medicine placement parts 11, and when the removed medicine is placed again, before and after the removal, As long as the calculation unit 36 that calculates the change in weight from the measurement result obtained by the first electronic balance 30 is provided, the amount of change due to the operation (injection and suction of the solution) to the medicine can be determined from the change in the total weight. Therefore, it can be confirmed whether or not the operation is correct.

  Thus, after operating the medicine, it is possible to automatically measure the change in weight by simply returning it to the original medicine placement section, so that the medicine container or syringe can be removed from the placement location in order to manipulate the medicine. It is possible to improve the convenience because it is not necessary to move to the balance and measure the change in weight and move it back to the original place. Then, using the result calculated by the calculator 36, the operator or another confirmer can confirm the accuracy of the operation.

(E)
In the above embodiment, the barcode reader 38 (not shown in FIG. 1) is provided as shown in FIG. 4, but it may not be provided.
In addition to or instead of the barcode reader 38, an RFID reader may be provided. In this case, RFID or the like is attached to the application label or infusion pack 21 in addition to or instead of the barcode, and reading is performed by the RFID reader.

(F)
In the above embodiment, the solution injection step S4 is provided in the dispensing method, but the solution injection step S4 may not be provided when all the drugs to be mixed are liquid.
(G)
In the above embodiment, the medicine bin 20 and the medicine placement unit 11 are associated in advance. That is, which medicine bottle 20 is to be placed on which medicine placement unit 11 is determined in advance, and is designated by the medicine instruction lamp 13. However, the medicine bin 20 and the medicine placement unit 11 may not be associated in advance.

Hereinafter, the case where the medicine placement unit 11 on which the medicine bottle 20 is placed in each process is not determined in advance will be described.
(G1. Drug assembling process)
In the embodiment described above, in the medicine assembling step S3 shown in FIG. 7, the place of the medicine placement section 11 on which the medicine bottle 20 is placed is determined in advance, and the medicine instruction lamp 13 corresponding to the medicine placement section 11 is provided. Although it is in the state of waiting for a medicine set, the location of the medicine placement unit 11 for placing the medicine bottle 20 may not be determined in advance.

  FIG. 14 shows a control flow of the medicine preparation process in this case. In the control flow shown in FIG. 14, unlike FIG. 7, S15 is not provided, and the medicine placement unit 11 is not instructed by the medicine instruction lamp 13. Further, in FIG. 14, unlike the above embodiment, S117 is provided instead of S17, and S18 is not provided. That is, S16 is performed after S13, and it is detected in which medicine placement unit 11 the medicine bottle 20 is placed. Next, in S <b> 117, the measurement operation control unit 33 associates the medicine bin 20 read by the barcode reader 38 with the detected medicine placement unit 11. By performing the control in this way, it is possible to associate which medicine is placed on which medicine placement section 11 even if the medicine placement section 11 for each medicine is not predetermined. .

In addition, when the medicine placement section is not determined in advance, the medicine placement section 11 is not instructed, and thus the medicine instruction lamp 13 may not be provided. At this time, S19 in FIG. 14 is not provided (G2. Solution injection step)
Further, in the above embodiment, in the dissolution liquid injection step S4 shown in FIG. 9, the medicine bottle 20 to be removed is instructed by the medicine instruction lamp 13, and the removed medicine bottle 20 is returned to the original medicine placement section 11 before being removed. Although the medicine instruction lamp 13 is waiting for the medicine set to be placed, the place to place the medicine bottle 20 to be removed and the removed medicine bottle 20 may not be determined in advance.

The control flow of the solution injection process in this case is shown in FIG. In the control flow shown in FIG. 15, S134 and S136 are provided instead of S34 and S36 of FIG. 9, and S32, S42, and S43 are not provided.
As shown in FIG. 15, the solution injection display is performed in S31, and when the operator removes any drug bottle 20, the location of the removed drug bottle 20 is detected in S33. Thereafter, in S134, the placement location of the removed medicine bottle 20 is stored. Thereby, the kind of the medicine in the removed medicine bottle 20 is known, and the amount of the solution to be injected can be confirmed.

  After injecting the solution into the removed medicine bottle 20, the medicine bottle 20 is placed on the medicine placement section 11 again, but the operator arbitrarily places the medicine bottle 20 on the vacant medicine placement section 11. It may be placed. This placement location is detected in S35, and the medicine bin 20 and the medicine placement section 11 are associated with each other in S136. That is, it is possible to associate with which medicine placement unit 11 the medicine bottle 20 into which the dissolution liquid has been injected is placed. In S <b> 39, the determination unit 37 determines whether the amount of the solution injected into the placed medicine bottle 20 matches the dispensing procedure.

In addition, when the place of the medicine bin 20 to be removed and the medicine placement unit 11 to be placed is not determined in advance, the medicine instruction lamp 13 may not be provided.
(G3. Transfer process)
In the above embodiment, in the transfer step S5 shown in FIG. 11, the medicine bottle 20 to be removed is instructed by the medicine instruction lamp 13, and the removed medicine bottle 20 is placed on the original medicine placement section 11 before being removed. The medicine instruction lamp 13 is waiting for the medicine set to be placed, but the medicine bottle 20 to be removed and the place to place it may not be determined in advance.

The control flow of the transfer process in this case is shown in FIG. In the control flow shown in FIG. 16, S154 and S156 are provided instead of S54 and S56 in FIG. 11, and S52, S71, and S72 are not provided.
As shown in FIG. 16, when the transfer indication is performed in S51 and the operator removes the arbitrary medicine bottle 20, the placement location of the medicine bottle 20 removed in S53 is detected, and the medicine bottle 20 removed in S154. Is stored. Thereby, the kind of the medicine in the removed medicine bottle 20 can be known, and the amount of medicine to be aspirated can be confirmed from the dispensing procedure.

  After a predetermined amount of medicine is aspirated from the removed medicine bottle 20, the medicine bottle 20 is placed on the medicine placement section 11 again, but the operator arbitrarily places the medicine bottle on the vacant medicine placement section 11. 20 may be placed. This placement location is detected in S55, and the medicine bin 20 and the medicine placement section 11 are associated with each other in S156. That is, it is possible to associate which medicine placement unit 11 the medicine bottle 20 from which the medicine has been aspirated is placed. Since the medicine bottle 20 read by the barcode reader 38 and the medicine placement unit 11 are associated with each other in the medicine assembling step S3 or the solution injection step S4, the removed medicine bottle 20 is aspirated. Further, it is possible to associate which medicine placement unit 11 the medicine bottle 20 is placed on. In S <b> 59, the determination unit 37 determines whether the amount of the medicine sucked from the placed medicine bottle 20 matches the dispensing procedure.

In addition, when the place of the medicine bin 20 to be removed and the medicine placement unit 11 to be placed is not determined in advance, the medicine instruction lamp 13 may not be provided.
As described above, in any case, it is only necessary that the positional relationship between the medicine bin 20 and the medicine placement unit 11 is associated.
(H)
In the above embodiment, physiological saline is used as the solution to be injected into the medicine bottle 20. However, the solution is appropriately changed depending on the kind of the medicine, and when the medicine contained is attached with the solution. The attached solution is used. Further, the solution in the infusion pack 21 may be used as a solution to be injected into the medicine bottle 20, or a solution may be prepared separately.

(Embodiment 2)
The weighing device according to the second embodiment is used, for example, when preparing an infusion solution in which a plurality of drugs are mixed.
<1: Overall device configuration>
FIG. 17 is a perspective view of the weighing device according to the second embodiment of the present invention. FIG. 18 is a perspective view showing a state in which a drug bottle is placed on the weighing device according to the second embodiment of the present invention.

  As shown in FIGS. 17 and 18, the weighing apparatus according to the second embodiment includes a display unit 2001 and a weighing unit 2002. A display unit 2001 is a touch panel or the like, and displays the content of preparation, work procedure, preparation record, etc. when preparing a plurality of medicines according to a prescription etc., and at the same time, operates the weighing device by inputting from the panel. . The display unit 2001 may be a combination of a display device such as an LCD and an input device such as a button or a pointing device instead of a touch panel. The weighing unit 2002 measures the total weight of the medicine to be placed, and determines whether or not the medicine is being prepared according to the preparation content and work procedure displayed on the display unit 2001.

[1-1: Overview Configuration of Weighing Device]
As shown in FIGS. 17 and 18, the weighing unit 2002 includes five drug placement units 2011 (2011a, 2011b, 2011c, 2011d, 2011e) on which the drug bins 2020a, 2020b, 2020c, 2020d, and 2020e are placed. Have. In addition, corresponding drug instruction lamps 2013 (2013a, 2013b, 2013c, 2013d, 2013e) are provided outside the respective drug placement units 2011 (2011a, 2011b, 2011c, 2011d, 2011e). On the right side before the weighing unit 2002, a power button 2014 and an infusion measurement start button 2015 are provided in order from the right end.

  As shown in FIG. 17, the five drug placement units 2011a, 2011b, 2011c, 2011d, and 2011e are arranged in two stages on a substantially triangular placement table 2061 in a plan view and straight from left to right. Is formed. Three drug placement units 2011a, 2011b, and 2011c are arranged in a straight line from the left side to the right side on the near side of the weighing unit 2002, and the two drug placement units 2011d and 2011e are arranged on the rear side. Are arranged side by side from the left side to the right side. The medicine placement unit 2011d is arranged in the center between the medicine placement unit 2011a and the medicine placement unit 2011b in a front view, and the medicine placement unit 2011e is a medicine placement unit 2011b and a medicine placement unit 2011c in a front view. Located in the middle between. Further, the mounting table 2061 is disposed so that one side of the substantially triangular shape is parallel to the front side of the apparatus and the left-right direction.

  Next, the shape of the medicine placement units 2011a, 2011b, 2011c, 2011d, and 2011e will be described. Since the five medicine placement units 2011 have the same shape, the medicine placement unit 2011a will be described as an example. FIG. 19 is an enlarged view of the vicinity of the medicine placement unit 2011a. As shown in FIG. 19, the medicine placement portion 2011a is a recess formed in a circular shape in plan view on the placement table 2061, and a placement surface 2111 with which the bottom surface of the medicine bottle 2020 abuts, A wall surface 2112 that restricts the placement range of 2020 is provided. Thereby, the range in which the medicine bin 2020 is placed can be limited, and the place where the medicine bin 2020 is placed can be specified when the weight change occurs due to the placement or pick-up of the medicine bin 2020.

  Each of the medicine instruction lamps 2013a, 2013b, 2013c, 2013d, 2013e is, for example, “no medicine” when it is turned off, “waiting for medicine set” when flashing yellow, and “during drug measurement” when it is lit yellow. , Green lighting indicates “medicine present”, green blinking indicates “medicine operation waiting”, and “red blinking” indicates “error”. In addition, for example, all of the medicine indication lamps 2013a to 2013e are simultaneously blinking yellow to indicate “infusion set waiting”, yellow to indicate “infusion measurement”, green to indicate “infusion”, and green to flash Can indicate “waiting for infusion operation” and “flashing red” can indicate “error”. In addition, about the set of the infusion pack 2021, you may show only by the display part 2001, without showing by the chemical | medical agent instruction | indication lamps 2013a-2013e.

The infusion measurement start button 2015 shown in FIGS. 17 and 18 is a button for starting measurement of the weight of the infusion pack 2021 (described later).
FIG. 20 is a partial schematic view of the weighing unit 2002 shown in FIG. In FIG. 20, the X axis and the Y axis are described with the left and right direction of the weighing unit 2002 as the X coordinate and the depth and the front direction as the Y coordinate. As shown in FIG. 20, below the mounting table 2061, in order to measure the weight of the medicine bottle 2020 mounted on the mounting table 2061, the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance A balance 2032 is provided. The first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 support the mounting table 2061 with respective support portions 2050, 2051, and 2052. The support portions 2050, 2051, and 2052 support a substantially triangular mounting table 2061 from below in the vicinity of the three apexes. Further, in the horizontal direction, the support portions 2050, 2051, and 2052 are disposed outside the medicine placement portions 2011a, 2011b, 2011c, 2011d, and 2011e. Desirably, the medicine placement portions 2011a, 2011b, 2011c, 2011d, and 2011e are arranged inside the triangle formed of the support portions 2050, 2051, and 2052 on the XY plane.

  The first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 are reaction forces generated in the support unit 2050, the support unit 2051, and the support unit 2052 due to the weight W of the medicine mounted on the drug placement unit 2011. Are measured as weight changes W1, W2, and W3 (see FIG. 20). As will be described in detail later, depending on the measured values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032, which medicine placement section 2011 has the medicine bottle 2020 placed thereon or which medicine placement section 2011. Whether the medicine bottle 2020 has been removed is determined.

  For use in this determination, an X coordinate and a Y coordinate are set. The X coordinate axis is set in parallel to a straight line connecting the first contact 2050a in contact with the mounting table 2061 of the first electronic balance 2030 and the second contact 2051a in contact with the mounting table 2061 of the second electronic balance 2031. The X coordinate of the first contact 2050a is set to -1, and the X coordinate of the second contact 2051a is set to +1. For this reason, the X coordinate of the center of the 1st contact 2050a and the 2nd contact 2051a becomes 0. The Y coordinate axis is set parallel to a straight line connecting the center of the first contact 2050a and the second contact 2051a and the third contact 2052a in contact with the mounting table 2061 of the third electronic balance 2032. The Y coordinate of the third contact 2052a is set to -1, and the Y coordinate of the first contact 2050a and the second contact 2051a is set to +1.

  Further, the medicine bins 2020a, 2020b, and 2020c placed on the medicine placement portions 2011a, 2011b, 2011c, 2011d, and 2011e by the total of the measured values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032. , 2020d and 2020e are measured. That is, an electronic balance is not provided for each medicine placement unit 2011, and three electronic balances (first electronic balance 2030, second electronic balance 2031, third electronic balance 2032) are provided for five medicine placement units 2011. ) Is provided.

  As the structure of the support portions 2050, 2051, and 2052, a structure that does not generate as much moment force as possible with the mounting table 2061 is preferable. In the present embodiment, the tips of the support portions 2050, 2051, and 2052 have a needle shape. As shown in FIG. 19, the tip of the support portion 2050 has a needle shape, and is formed so that the area of the first contact 2050a that is a contact portion with the mounting table 2061 is as small as possible.

[1-2: Internal configuration of weighing device]
FIG. 21 is a schematic diagram for explaining the control of the weighing device according to the second embodiment.
As shown in FIG. 21, the weighing apparatus according to the present embodiment includes a first electronic balance 2030, a second electronic balance 2031, a third electronic balance 2032, a measurement operation control unit 2033, a dispensing procedure storage unit 2034, and a measurement result storage unit. 2035, a calculation unit 2036, a determination unit 2037, and a barcode reader 2038.

  The dispensing procedure storage unit 2034 stores a preparation procedure when preparing a plurality of medicines according to a prescription or the like. The barcode reader 2038 reads the information of the barcode attached to the medicine bins 2020a, 2020b, 2020c, 2020d, 2020e, etc., and outputs the result to the measurement operation control unit 2033. This information includes information on the type of medicine. The preparation procedure may be stored in the dispensing procedure storage unit 2034 by reading an application label (bar code) including information on the preparation procedure with the barcode reader 2038. This barcode may be affixed to the medicine bottle 2020 or the infusion pack 2021 (described later).

  Based on the preparation procedure, information on pressing of the infusion measurement start button 2015, and the like, the measurement operation control unit 2033 includes a first electronic balance 2030, a second electronic balance 2031, a third electronic balance 2032, drug instruction lamps 2013a, 2013b, 2013c, Control of operations of 2013d, 2013e, the display unit 2001, and the like is performed. For example, the total weight is measured by the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 in a state where all the medicine bottles 2020a, 2020b, 2020c, 2020d, and 2020e are placed. When a person sucks a predetermined amount from the medicine bottle 2020a with a syringe or the like, returns it to the medicine placement section 2011a again, and measures again with the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032, the medicine The weight before and after the suction of the bottle 2020a can be measured.

  The measurement result storage unit 2035 stores measurement results obtained by the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032. The calculation unit 2036 performs a predetermined calculation from the measurement values sent from the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 or the measurement results stored in the measurement result storage unit 2035. The calculation result is output to the determination unit 2037. For example, the suction amount can be calculated by calculating the difference from the weight data before and after the suction. Further, the coordinates of the medicine placement unit 2011 on which the medicine bin 2020 is placed or removed are calculated from the amount of change in the measured values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032.

  The determination unit 2037 determines whether the dispensing procedure is followed according to the calculation result of the calculation unit 2036, and outputs the determination result to the measurement operation control unit 2033. For example, based on the calculation result by the calculation unit 2036, it is determined whether or not the medicine bottle 2020 is placed at a predetermined position or removed from the predetermined position. Further, for example, it is determined whether or not the suction amount of the medicine from the medicine bottle 2020a calculated by the calculation unit 2036 matches the suction amount indicated in the dispensing procedure.

  In addition, an example of a some mounting part respond | corresponds to the chemical | medical agent mounting part 2011 (2011a-2011e) of this Embodiment. An example of the measurement unit and an example of the detection unit correspond to the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 of the present embodiment, and an example of the medicine detection unit corresponds to the barcode reader 2038. Correspond. An example of the medicine container corresponds to the medicine bottle 2020 (2020a to 2020e) of the present embodiment.

In addition, when an anticancer agent or the like is prepared aseptically using the weighing device, it is desirable to install the weighing device inside a biohazard cabinet or the like and prepare the drug in an aseptic environment.
<2: Dispensing method>
Next, a dispensing method using the weighing device according to the first embodiment will be described.

[2-1: Overview of dispensing method]
FIG. 22 is a flowchart showing an outline of a dispensing method using the weighing device according to the second embodiment.
In the application reading step S2001, the application label is read using the barcode reader 2038. By this reading, the dispensing procedure is read and stored in the dispensing procedure storage unit 2034.

Next, in the prescription content confirmation step S2002, the measurement operation control unit 2033 displays the prescription content read from the dispensing procedure storage unit 2034 on the display unit 2001.
Next, in the medicine assembling step S2003, medicines necessary for application are arranged in the medicine placing section 2011 of the weighing section 2002.
Next, in the solution injection step S2004, when a powdered medicine is contained in the medicine bottle 2020, a solution such as physiological saline is injected.

Finally, in the transfer step S2005, transfer from the medicine bottle 2020 to the infusion pack 2021 (described later) is performed.
Below, each process is demonstrated.
[2-2: Prescription content confirmation process]
In the prescription content confirmation step S2002, the prescription content is displayed on the display unit 2001 in order to make the operator confirm. For example, “Xml of physiological saline is injected into the medicine bottle 2020a, Yml of physiological saline is injected into the medicine bottle 2020b, and after stirring, Zml is sucked from the medicine bottle 2020a, Vml is sucked from the medicine bottle 2020b, and from the medicine bottle 2020c. The prescription content (contents of preparation of the drug) is displayed, such as “Wml suction..., And αml is diluted in the infusion pack 2021”.

  FIG. 23 is an example of a prescription content confirmation process display displayed on the display unit 2001. As shown in FIG. 23, an identification number for identifying application is described in the application barcode display field 2100. The attribute information display field 2101 describes information such as the patient's personal information (first and last name, sex, ID number, date of birth, age, height, weight, body surface area). In the process progress navigation column 2102, progress information such as which process is currently being performed among the above-described prescription content confirmation process S2002, drug preparation process S2003, solution injection process S2004, and transfer process S2005 is displayed. The progress is displayed by the current process being surrounded by a surrounding line 2102a. Currently, since it is a prescription content confirmation process, the process is surrounded by a surrounding line 2102a.

Further, detailed information on each process is displayed below the process progress navigation column 2102. As detailed information of each process, a prescription content tab 2103, a medicine assortment tab 2104, a solution injection tab 2105, and a transfer tab 2106 are provided, and detailed information of each process is displayed on each tab. .
Since it is a prescription content confirmation process now, the prescription content tab 2103 is opened and the prescription content is displayed. For example, “For [Endoxan 500 mg / bottle], inject [10 ml / bottle] of the solution [saline solution] into one bottle and dissolve it into [Endoxan 100 mg / bottle]. In contrast, three bottles are prepared, and a solution [physiological saline] is injected into each bottle [5 ml / bottle] to dissolve. Then, 10 ml from [Endoxan 500 mg / bottle], 5 ml from 2 [Endoxan 100 mg / bottle], and 3 ml from the remaining [Endooxane 100 mg / bottle] into 200 ml / bag of Otsuka raw food Is displayed.

For example, when the operator presses the “prescription content confirmation” portion of the process progress navigation column 2102, the confirmation is confirmed, and the display content moves to the next medicine preparation step S2003.
[2-3: Drug assembling process]
FIG. 24 is a flowchart showing the operation of the medicine arranging step S2003.

When the prescription content is confirmed, in S2011, the measurement operation control unit 2033 causes the display unit 2001 to display a medicine assortment display based on the dispensing procedure stored in the dispensing procedure storage unit 2034. In the medicine assortment display, the type of medicine to be arranged and the place where the medicine is placed are displayed.
For example, the medicine bottles 2020a, 2020b, 2020c, 2020d, and 2020e and the infusion pack 2021 are prepared. 2011e is displayed. FIG. 25 is an example of a display of a medicine preparation process displayed on the display unit 2001. As shown in FIG. 25, since the current step is the medicine arranging step S2003, the “medicine arranging” portion of the process progress navigation column 2102 is surrounded by a surrounding line 2102a. Then, a medicine stock tab 2104 is displayed. For example, an instruction is displayed to the effect that “endoxan 500 mg / bottle is placed on the drug placement unit 2011a and [endoxan 100 mg / bottle] is placed on the drug placement unit 2011b, 2011c, 2011d”. Is done.

Next, when the operator prepares the displayed medicine and causes the barcode reader 2038 to read the label (bar code) on the surface of the medicine bottle 2020, the reading result is sent to the measurement operation control unit 2033 in S2012. .
Next, in S2013, the measurement operation control unit 2033 plans to prepare the types of medicines read by the barcode reader 2038 from the dispensing procedures stored in the dispensing procedure storage unit 2034 and the reading results by the barcode reader 2038. It is determined whether the type of medicine. For example, when a label (bar code) attached to the surface of the medicine bottle 2020a is read by the barcode reader 2038, the measurement operation control unit 2033 causes the medicine bottle that the medicine bottle from which the barcode is read is to be prepared. It is determined whether any of 2020a, 2020b, 2020c, 2020d, and 2020e.

  If the type of drug read by the barcode reader 2038 does not match the type of drug scheduled to be collected, the display unit 2001 displays an indication (S2023) that an appropriate drug is prepared again because of an erroneous operation. The operator performs the barcode reading operation of the label of the correct medicine bin 2020. In order to indicate to the operator, control may be performed such that all or any one of the medicine instruction lamps 2013a to 2013e is brought into an error (flashing red) state.

  On the other hand, when the medicine read in S2013 is included in the medicine to be prepared, the determination unit 2037 determines whether the medicine is the infusion pack 2021 (Otsuka raw food 200 ml / bag in FIG. 25) or the medicine bottle 2020 in S2014. Is done by. Here, in the case of the infusion pack 2021, since there is no placement place, the control process proceeds to S2022.

If the medicine read by the barcode reader 2038 is the medicine bin 2020 in S2014, the control process proceeds to S2015.
In S2015, the measurement operation control unit 2033 puts the medicine instruction lamp 2013 corresponding to the medicine placement unit 2011 on which the medicine bottle 2020 is placed into a medicine set waiting state (lights in yellow). For example, when [Endoxan 500 mg / bottle] is read, the medicine operation lamp 2013a corresponding to the medicine placement unit 2011a is lit yellow by the measurement operation control unit 2033. It should be noted that control may be performed to change the color of the column of the medicine for which placement is currently instructed or to make it blink in the display contents of the medicine assortment tab 2104.

  After S2015, the measurement operation control unit 2033 is in a standby state until the medicine bottle 2020 is placed. Then, when the medicine bottle 2020 is placed on the medicine placement section 2011 corresponding to the worker according to the medicine instruction lamp 2013, the measurement values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 change. In S2016, when a change in measurement value is detected by the measurement operation control unit 2033, the values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 are measured.

  The placement of the medicine bottle will be described with reference to FIGS. FIG. 26A is a diagram illustrating an operation on the medicine bin 2020. FIG. FIG. 26B is a diagram showing changes in the measured value of the first electronic balance 2030. FIG. 26C is a diagram showing changes in the measured value of the second electronic balance 2031. FIG. 26 (d) is a diagram showing changes in measured values of the third electronic balance 2032. In FIGS. 26B, 26 </ b> C, and 26 </ b> D, the vertical axis indicates the measurement value, and the horizontal axis indicates time. When the medicine bottle 2020 is placed as shown in FIG. 26 (a), the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2031 are shown in FIGS. 26 (b), (c), and (d). The measured value of the electronic balance 2032 changes.

  When the measurement operation control unit 2033 detects changes in the values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032, the threshold value V (FIGS. 26B, 26C, and 26D). ), And when the amount of change of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 exceeds the threshold V (see time t1), the measurement operation control unit 2033 causes the first electronic balance 2030 to Then, it is detected that the measurement values of the second electronic balance 2031 and the third electronic balance 2032 have changed. The threshold value V may be set to a value smaller than the weight of the lightest drug bottle among the used drug bottles. For example, when the weight of the lightest drug bottle 2020 is 7 to 8 g, the threshold value V is set to It can be set to about 2 g. By setting the threshold in this way, it is possible to exclude the influence of vibration or the like. In the present embodiment, the time when the measurement values of all the electronic balances change from the threshold value V is t1, but the time when the measurement value of at least one electronic balance changes from the threshold value V may be t1.

  Then, it waits until the measurement value becomes stable from the time t1 when the change of the measurement value is detected, and the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 during the time t2 to t3 when the measurement value becomes stable. The weight change due to is measured. Since the electronic balance may take time until the measurement value is stabilized, the medicine instruction lamp 2013 is controlled to be in a medicine measurement state (lights yellow) during that time (from t1 to t3).

  Next, the measurement values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 in S2016 are stored in the measurement result storage unit 2035 in S2017, and the calculation unit 2036 uses the measurement values in S2018. An operation is performed. First, the measured value of the first electronic balance 2030 when the medicine bottle 2020a is placed is W1a, the measured value of the second electronic balance 2031 is W2a, and the measured value of the third electronic balance 2032 is shown in FIG. .

  The calculation by the calculation unit 2036 is to calculate the placement position of the medicine bottle 2020 and the weight of the medicine bottle 2020. Specifically, the placement location is calculated by the following (Equation 1). Since the measurement value before placing the medicine bottle 2020a is adjusted to 0, the change weight W1 of the first electronic balance 2030 = W1a-0, the change weight W2 of the second electronic balance 2031 = W2a-0, the third electron The change weight W3 of the balance 2032 becomes W3a-0. Therefore, the X coordinate of the placement location is calculated by (W2a−W1a) / (W1a + W2a + W3a) from (Equation 1). The Y coordinate of the placement location is calculated by (W2a + W1a-W3a) / (W1a + W2a + W3a). Further, the change weight is calculated by W1a + W2a + W3a from (Equation 2). This change weight corresponds to the weight of the medicine bottle 2020a.

  Next, in S2019, the determination unit 2037 determines whether or not the placement location obtained by (Equation 1) matches the medicine placement unit 2011 instructed in S2015. If it is not placed on the instructed medicine placement unit 2011, it is an erroneous operation, and the measurement operation control unit 2033 displays a display (S2020) indicating that the medicine bottle 2020 is placed on the appropriate medicine placement unit 2011 again (S2020). The medicine indication lamp 2013 at the place where it is placed by mistake is put into an error state (red blinking). For example, when the worker places the medicine bin 2020a on the medicine placement unit 2011b which is the wrong place, the medicine instruction lamp 2013b is in an error state, and the worker places the medicine bin 2020a in the right place. If the medicine is placed on the medicine placement section 2011, the medicine placement section 2011 is determined again. Since the medicine placement section 2011a is placed this time, the process proceeds to the next step S2021.

Here, the determination of the medicine placement location will be described in detail with a specific example.
As shown in FIG. 20, the position of the center of the medicine placement unit 2011a can be expressed as (−2/3, +2/3) ≈ (−0.67, +0.67) on the coordinates. Further, the position of the center of the medicine placement section 2011b can be expressed as (0, +2/3) ≈ (-0, +0.67) on the coordinates. The position of the center of the medicine placement part 2011c can be expressed as (+2/3, +2/3) ≈ (−0.67, +0.67) on the coordinates. The position of the center of the medicine placement portion 2011d can be expressed as (−1/3, 0) ≈ (−0.33, 0) on the coordinates. The position of the center of the medicine placement unit 2011e can be expressed as (+1/3, 0) ≈ (0.33, 0) on the coordinates.

  Since the width from the center of each medicine placement part 2011 to the wall surface 2112 is 1/6 (≈0.17), the coordinates of the calculation result by (Equation 1) are (−2 / 3 ± 1/6, + 2/3 ± 1/6) ≈ (−0.67 ± 0.17, + 0.67 ± 0.17), it can be determined that the medicine bin 2020 is placed on the medicine placement portion 2011a. Further, when the coordinates of the calculation result are within the range of (0 ± 1/6, + 2/3 ± 1/6) ≈ (0 ± 0.17, + 0.67 ± 0.17), the medicine bin 2020 is placed in the medicine placement portion 2011b. It can be determined that is placed. Similarly, if the coordinates of the calculation result are within (+ 2/3 ± 1/6, + 2/3 ± 1/6) ≒ (+ 0.67 ± 0.17, + 0.67 ± 0.17), the drug placement It can be determined that the medicine bottle 2020 is placed on the part 2011c, and the coordinates of the calculation result are (−1 / 3 ± 1/6, 0 ± 1/6) ≈ (−0.33 ± 0.17, 0 ± 0.17) If it is true, it can be determined that the medicine bin 2020 is placed on the medicine placement portion 2011d, and the coordinates of the calculation result are (+ 1/3 ± 1/6, 0 ± 1/6) ≈ (+0.33) ± 0.17, 0 ± 0.17), it can be determined that the medicine bin 2020 is placed on the medicine placement portion 2011e.

  For example, the measured value W1a of the first electronic balance 2030 is 18 g and the measured value W1b of the second electronic balance 2031 when the medicine bottle 2020a is first placed from the state where the medicine bottle 2020 is not placed on the placing table 2061. Is 2 g and the measured value W1c of the third electronic balance 2032 is 4 g, the X coordinate according to the calculation result of (Equation 1) is (2-18) / (18 + 2 + 4) ≈−0.67, and the Y coordinate is (2 + 18 −4) / (18 + 2 + 4) ≈0.67, and it can be determined that the medicine bin 2020a is placed on the medicine placement portion 2011a.

  Next, in S2019, when it is determined that the arrangement of the medicine bin 2020 is appropriate, in S2021, the measurement operation control unit 20133 displays the medicine instruction lamp 2013 corresponding to the medicine placement unit 2011 on which the medicine is placed. Control to the presence (green lighting) state. For example, when the medicine bin 2020a is placed on the medicine placement portion 2011a, the medicine instruction lamp 2013a is controlled to be in a medicine-present state (lights in green). Control may be performed so as to change the color of the medicine column corresponding to the medicine placement unit 2011 on which the medicine is placed in the display contents of the medicine assortment tab 2104.

In step S2022, the measurement operation control unit 2033 determines whether all of the medicines scheduled to be collected are placed. If not all of them are placed, the system waits until the next barcode of the medicine bin 2020 is read. When the barcode is read, S2012 to S2021 are executed for the next medicine.
Next, a case where the operation of placing the medicine bottle 2020b is performed after placing the medicine bottle 2020a on the medicine placement section 2011a will be described.

  After the barcode of the medicine bottle 2020b is read in S2012, the medicine instruction lamp 2013b enters a medicine setting waiting (lights in yellow) state through S2013 to S2015. Next, when the medicine bin 2020b is placed on the medicine placing section 2011, each of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 as shown in FIGS. The measured value changes from W1a, W2a, and W3a. When this change is greater than or equal to the threshold value V, the measurement operation control unit 2033 detects changes in measurement values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032, and the first electronic balance 2030, the second electronic balance 2030, Measurement values of the balance 2031 and the third electronic balance 2032 are detected. Here, when the measured value of the first electronic balance 2030 is W1b, the measured value of the second electronic balance 2031 is W2b, and the measured value of the third electronic balance 2032 is W3b, the change amount W1 of the first electronic balance 2030 is (W1b-W1a), the change amount W2 of the second electronic balance 2031 is (W2b-W2a), and the change amount W3 of the third electronic balance 2032 is (W3b-W3a).

  That is, the X coordinate of the placement location can be obtained by ((W2b−W2a) − (W1b−W1a)) / ((W1b−W1a) + (W2b−W2a) + (W3b−W3a)). The Y coordinate of the location can be obtained by ((W2b−W2a) + (W1b−W1a) − (W3b−W3a)) / ((W1b−W1a) + (W2b−W2a) + (W3b−W3a)). I can do it. In this way, the amount of change based on the measured values W1a, W2a, and W3a stored when the medicine bottle 2020a is placed last time is obtained.

When all the scheduled medicines (medicine bins 2020a, 2020b, 2020c, 2020d, and 2020e) are arranged by the above operation, the status display of the “medicine arrangement” portion of the process progress navigation column 2102 is changed to “completed”.
As described above, for example, as shown in FIG. 18, when all of the medicine bins 2020a, 2020b, 2020c, 2020d, and 2020e are placed on the predetermined medicine placement portions 2011a, 2011b, 2011c, 2011d, and 2011e, the medicines are arranged. The process ends. In the case of the example shown in FIG. 25, nothing is placed on the medicine placement portion 2011e.

[2-4: Solution injection step]
FIG. 27 is a flowchart showing the operation of the solution injection step S2004.
When the medicine arranging step S2003 is completed, the solution injection display is performed by the display unit 2001 in S2031. This is done for powdered drugs. For example, when the medicine in the medicine bottle 2020a is a powder, the message “X mg of physiological saline is injected into the medicine bottle 2020a, Ymg of physiological saline is injected into the medicine bottle 2020b” is displayed. Note that the medicine bottle 2020 containing the liquid medicine is not described in the above display.

  FIG. 28 is a diagram showing an example of the display of the solution injection process displayed on the display unit 2001. Currently, since this is a solution injection process, the “solution injection” portion of the process progress navigation column 2102 is surrounded by a surrounding line 2102a. Then, a solution injection tab 2105 is displayed. For example, “[Endoxane 500 mg / bottle] is dissolved by injecting [10 ml / bottle] of the solution [saline solution] into one bottle, and [Endoxan 100 mg / bottle] Dissolve the solution [saline] by injecting [5 ml / bottle]. "Is displayed.

  Next, in S2032, the measurement operation control unit 2033 places the predetermined medicine instruction lamp 2013 in a medicine operation waiting state (for example, green blinking) in accordance with the dispensing procedure stored in the dispensing procedure storage unit 2034. For example, the medicine instruction lamp 2013a is blinked in green to prompt an operation of injecting physiological saline into [Endoxane 500 mg / bottle]. Of the display contents of the solution injection tab 2105, control may be performed such that the color of the column of the medicine for which the solution injection instruction is currently being performed is changed or blinked.

  After S2032, the measurement operation control unit 2033 is in a standby state until the medicine bottle 2020 is removed. When the medicine bin 2020 of the medicine placement unit 2011 corresponding to the worker is removed according to the medicine instruction lamp 2013, the values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 change. The change in the value is detected by the measurement operation control unit 2033 in S2033, and the values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 are measured. FIG. 29A is a diagram illustrating an operation on the medicine bin 2020. FIG. FIG. 29B is a diagram showing changes in the measured value of the first electronic balance 2030. FIG. 29 (c) is a diagram showing changes in measured values of the second electronic balance 2031. FIG. 29 (d) is a diagram showing changes in measured values of the third electronic balance 2032.

  Specifically, when the medicine bottle 2020 is removed as shown in FIG. 29 (a), as shown in FIGS. 29 (b), (c), and (d), the first electronic balance 2030, the second electronic balance 2031, and the first electronic balance 2031 are used. The measured value of the three-electron balance 2032 will decrease. When the measured values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 stored last in the medicine assembling step S2003 are W1f, W2f, and W3f, the first electronic balance 2030 based on the measured values, At the time (t11) when the amount of change in the second electronic balance 2031 and the third electronic balance 2032 exceeds the threshold value V (t11), the measurement operation control unit 2033 sets the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032. Detects changes in measured values. In other words, at time t11, the time when the measured value of the first electronic balance 2030 falls below W1f-V, the time when the measured value of the second electronic balance 2031 falls below W2f-V, and the measurement of the third electronic balance 2032 It can also be said that the value is lower than W3f-V. In the present embodiment, the time when the measured values of all the electronic balances change from the threshold value V is t11, but the time when the measured value of at least one electronic balance changes from the threshold value V may be t11.

Then, it waits until the measurement value is stabilized from the time t11 when the change of the measurement value is detected, and the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 during the time t12 to t13 when the measurement value is stabilized. Measurement is performed.
Next, the measurement values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 in S2033 are sent to the calculation unit 2036, and in S2034, the calculation unit 2036 uses the measurement values (Equation 1 ) Is performed. As shown in FIG. 29, when the measured value by the first electronic balance 2030 is W1g, the measured value by the second electronic balance 2031 is W2g, and the measured value by the third electronic balance 2032 is W3g, the measurement by the first electronic balance 2030 is performed. The change amount W1 of the value is (W1g−W1f), the change amount W2 of the measurement value of the second electronic balance 2031 is (W2g−W2f), and the change amount W3 of the measurement value of the third electronic balance 2032 is (W3g−W3f). ) Therefore, the X coordinate of the removed placement location is obtained by ((W2g−W2f) − (W1g−W1f)) / ((W1g−W1f) + (W2g−W2f) + (W3g−W3f)). The Y coordinate is obtained by ((W2g−W2f) + (W1g−W1f) − (W3g−W3f)) / ((W1g−W1f) + (W2g−W2f) + (W3g−W3f)). For example, when the medicine bottle 2020b having a weight of 24 g placed on any medicine placement unit 2011 is removed, the change amount W1 of the measured value by the first electronic balance 2030 becomes −18 g, and the second electron It is assumed that the change amount W2 of the measured value by the balance 2031 is −2 g, and the change amount W3 of the measured value by the third electronic balance 2032 is −4 g. In this case, the X coordinate of the calculation result of (Equation 1) is (−2 − (− 18)) / ((− 18) + (− 2) + (− 4)) ≈−0.67, and the Y coordinate is (−2 + (− 18) − (− 4)) / ((− 18) + (− 2) + (− 4)) ≈0.67, and this calculation result is sent to the determination unit 2037.

Next, in S2035, the determination unit 2037 determines whether or not the medicine bottle 2020 has been removed from the medicine placement unit 2011 in which the medicine instruction lamp 2013 is waiting for medicine operation (green blinking).
That is, the determination unit 2037 determines the medicine placement unit 2011 that has been removed from the calculation result of the calculation unit 2036, and whether or not the decided medicine placement unit 2011 is in a state waiting for medicine operation (green blinking). Judgment is made. When the coordinates based on the calculation result by the calculation unit 2036 are (−0.67, +0.67) as in the above example, it is determined that the medicine bin 2020 has been removed from the medicine placement unit 2011a.

  When the medicine bin 2020 is removed from the medicine placement unit 2011 other than the medicine operation waiting state, in S2036, the measurement operation control unit 2033 displays an indication of an erroneous operation on the display unit 2001 and the removed medicine bin 2020 as the original. An indication to return to the medicine placement section 2011 and a display to remove the medicine bottle 2020 from the appropriate medicine placement section 2011 are displayed again, the medicine instruction lamp 2013 is set to an error state (red blinking), and the operator then dissolves. Stop the liquid injection. In addition, you may make a sound. In this case, for example, after the medicine bin 2020 that has been accidentally removed by the operator is placed on the original medicine placement section 2011, the medicine bottle 2020 is removed from the appropriate medicine placement section 2011 again, and then the process from step S2033 is performed again. Done.

On the other hand, when the medicine bottle 2020 is removed from the medicine placement unit 2011 in the medicine operation waiting state, an erroneous operation display, a warning or the like is not issued, and the operator removes the medicine bottle 2020 and then returns to FIG. As shown, the solution is injected into the drug bottle 2020 using a syringe 2090.
After injecting the solution and stirring and mixing the drug and the solution, when the drug bottle 2020 is placed on the original drug placement unit 2011 again, as shown in FIGS. 29 (b), (c), and (d). The measured values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 increase. In S2037, when the measurement operation control unit 2033 detects a change in the measured value of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 over the threshold value V (see time t14), the first electronic balance. Changes in measured values of 2030, the second electronic balance 2031 and the third electronic balance 2032 are detected. By detecting the measurement value change at time t14, the measurement operation control unit 2033 sets the medicine instruction lamp 2013 to measure the medicine (lights in yellow), and the first electronic balance 2030 and the second electronic balance 2031 from time t15 to t16. And the measurement of the 3rd electronic balance 2032 is performed. The time t15 is a time that takes into account the time during which the measured value is stabilized from the time t14.

In S2038, the measurement values W1h, W2h, and W3h of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 are stored in the measurement result storage unit 2035.
Subsequently, in S2039, the calculation unit 2036 calculates the placement location of the medicine bin 2020 using (Equation 1). Here, since the measured values W1g, W2g, and W3g when the removal position is calculated in S2033 and S2034 are not stored, the previously stored measured values W1f, W2f, and W3f are used as the reference values for the change amount. Will be. That is, the change amount W1 of the measurement value of the first electronic balance 2030 is (W1h-W1f), the change amount W2 of the measurement value of the second electronic balance 2031 is (W2h-W2f), and the measurement value of the third electronic balance 2032 The amount of change W3 is (W3h−W3f). Therefore, the X coordinate of the mounting location is obtained by ((W2h−W2f) − (W1h−W1f)) / ((W1h−W1f) + (W2h−W2f) + (W3h−W3f)). The Y coordinate is obtained by ((W2h−W2f) + (W1h−W1f) − (W3h−W3f)) / ((W1h−W1f) + (W2h−W2f) + (W3h−W3f))].

  Subsequently, in S2040, based on the calculation result obtained from (Equation 1) by the determination unit 2037, it is determined whether or not the medicine bin 2020 is placed on the original medicine placement unit 2011. When the medicine bottle 2020 is removed, the medicine instruction lamp 2013 of the removed medicine placement unit 2011 is waiting for a medicine set (flashing yellow). When the medicine bin 2020 is set on the medicine placement unit 2011 in a medicine setting waiting state, the medicine is present (green lighted).

  On the other hand, if the removed medicine bin 2020 is placed on a different medicine placement unit 2011 other than the waiting state for the medicine set, in S2041, an indication of an erroneous operation indicating that the placed position is wrong and an appropriate display again. The display unit 2001 displays that the medicine bin 2020 is placed on the medicine placement unit 2011, and the medicine instruction lamp 2013 at the position where the medicine bin 2020 is erroneously placed is in an error state (flashing red). In this case, for example, after removing the medicine bin 2020 erroneously placed by the operator, the medicine bin 2020 is placed on the appropriate medicine placement section 2011 again, and the process is repeated from step S2037.

  If the placement location is appropriate in S2040, the change amount W1 of the first electronic balance 2030, the change amount W2 of the second electronic balance 2031, and the third electronic balance 2032 used for calculating the placement location (Equation 1). By applying the amount of change W3 to the above (Equation 2), the calculation unit 2036 calculates the change weight in S2042. That is, the change weight is calculated by (W1h−W1f) + (W2h−W2f) + (W3h−W3f).

The weight of physiological saline injected is calculated by calculating the change weight. At the same time, control may be performed such that the weight of the injected solution is displayed on the solution injection tab 2105. Alternatively, control may be performed such that the volume of the injected solution is calculated from the weight of the injected solution and the specific gravity of the solution and displayed on the solution injection tab 2105.
Subsequently, in S2043, the determination unit 2037 determines whether or not the amount has changed by an amount according to the dispensing procedure. That is, how much physiological saline is injected into which medicine bottle 2020 depending on the place where the medicine is placed or removed calculated from the amount of change of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032. Therefore, the determination unit 2037 can determine whether or not the medicine is prepared according to the procedure related to the preparation of the medicine.

  Specifically, when it is determined that the change amount calculated in S2042 is within the error range of the change amount scheduled in the dispensing procedure, the control process proceeds to S2044. For example, as shown in FIG. 28, in the operation of injecting 10 ml of physiological saline, the weight increases by about 10 g when the operation is normally performed. Note that when the control process proceeds to S2044, control may be performed to change the color of the column of the medicine into which the dissolution liquid has been injected in the display content of the dissolution liquid injection tab 2105.

  In step S <b> 2044, it is determined whether or not the injection of the solution has been completed for all the medicine bottles 2020 that need to be injected. If there are other medicine bottles 2020 that need to be infused with the solution, the control process returns to S2032, and the medicine bottle 2020 to be operated next is placed in the medicine placement section 2011 on which the medicine bottle 2020 is placed. The corresponding medicine instruction lamp 2013 enters a medicine operation waiting state (green blinking). It should be noted that a timer or the like is provided to detect a change in the measured value of the first electronic balance 2030 and the second electronic balance 2031 when the medicine bottle 2020 is removed for a predetermined time or longer after the medicine instruction lamp 2013 is in a medicine operation instruction waiting state. If not, control may be performed to terminate abnormally.

On the other hand, if it is determined in S2043 that the change amount is not within the error range, the process ends abnormally (S2045). At this time, a display indicating an erroneous operation may be performed.
If it is determined in S <b> 2044 that the injection of the solution has been completed for all drug bottles 2020 that require the injection of the solution, the solution injection process is completed. At the same time, the status display in the “solution injection” portion of the process progress navigation column 2102 is changed to “completed”.

In S2044, if the process ends abnormally, a display such as redoing only the operation of the corresponding medicine bin 2020 may be performed.
[2-5: Transfusion process]
As an outline of the transfer step S2005, one or a plurality of syringes are used to sequentially suck a predetermined amount of a drug from one or a plurality of drug bottles 2020 into the syringe and then mix a plurality of the drugs mixed in the syringe. The medicine is injected into an infusion pack 2021 (described later).

  FIG. 30A and FIG. 30B are flowcharts showing the operation of the transfer step S2005. When the dissolution liquid injection step S2004 is completed, or when all the medicine bottles 2020 are liquid chemicals and the dissolution liquid injection step S2004 is not necessary, when the chemical preparation step S2003 is completed, the display unit 2001 is moved to S2051. The procedure of the injection process S2005 is displayed.

As the procedure of the transfer step, for example, a display indicating that “Zml suction from the medicine bottle 2020a, Vml suction from the medicine bottle 2020b, Wml suction from the medicine bottle 2020c..., Αml is diluted in the infusion pack 2021” is performed. Is called.
FIG. 31 is a diagram illustrating an example of a display of a transfusion process displayed on the display unit 2001. Since it is currently a transfer step, the “transfer” portion of the process progress navigation column 2102 is surrounded by a surrounding line 2102a. Then, a transfer tab 2106 is displayed. For example, “10 ml from [Endoxan 500 mg / bottle], 5 ml from two [Endoxan 100 mg / bottle], 3 ml from the other [Endoxan 100 mg / bottle], and [Otsuka raw food 200 ml / Bag]. "Is displayed.

Thereafter, in S2052, the measurement operation control unit 2033 puts the medicine instruction lamp 2013 corresponding to the medicine placement unit 2011 on which the medicine bottle 2020 to be aspirated first is placed into a medicine operation waiting state (flashing green).
After S2052, the measurement operation control unit 2033 is in a standby state until the medicine bottle 2020 is removed. Then, when the medicine bin 2020 of the medicine placement unit 2011 corresponding to the worker is removed according to the medicine instruction lamp 2013, the values of the first electronic balance 2030 and the second electronic balance 2031 change. The change in the value is detected by the measurement operation control unit 2033 in S2053, and the values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 are measured.

FIG. 32A is a diagram illustrating an operation on the medicine bin 2020. FIG. FIG. 32B is a diagram showing a change in measured value of the first electronic balance 2030. FIG. 32 (c) is a diagram showing changes in measured values of the second electronic balance 2031. FIG. 32 (d) is a diagram showing changes in measured values of the third electronic balance 2032.
Specifically, when the medicine bottle 2020 is removed as shown in FIG. 32 (a), the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 are shown in FIGS. 32 (b) and 32 (c). The measured value will decrease. When the measured values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 stored last in the solution injection step S2004 are W1i, W2i, and W3i, the amount of change from the measured value is the threshold value V. The measurement operation control unit 2033 detects that the measurement values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 have changed at a time (t21) that exceeds. In the present embodiment, the time at which the measurement values of all the electronic balances change from the threshold value V is t21, but the time at which the measurement value of at least one electronic balance changes from the threshold value V may be t21.

Then, it waits until the measurement value is stabilized from the time t21 when the change of the measurement value is detected, and the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 during the time t22 to t23 when the measurement value is stabilized. Measurement is performed.
Next, the measurement values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 in S2053 are sent to the calculation unit 2036, and in S2054, the calculation unit 2036 uses the measurement values (Equation 1 ) Is performed. As shown in FIG. 32, when the measured value by the first electronic balance 2030 is W1j, the measured value by the second electronic balance 2031 is W2j, and the measured value by the third electronic balance 2032 is W3j, the measurement by the first electronic balance 2030 is performed. The change amount W1 of the value is (W1j−W1i), the change amount W2 of the measurement value of the second electronic balance 2031 is (W2j−W2i), and the change amount W3 of the measurement value of the third electronic balance 2032 is (W3j−W3i). )

  Therefore, the X coordinate of the placement location from which the medicine bin 2020 is removed is ((W2j−W2i) − (W1j−W1i)) / ((W1j−W1i) + (W2j−W2i) + (W3j−W3i)) Y coordinate is calculated as ((W2j-W2i) + (W1j-W1i)-(W3j-W3i)) / ((W1j-W1i) + (W2j-W2i) + (W3j-W3i)). .

  Subsequently, in S2055, the determination unit 2037 determines whether or not the medicine bin 2020 has been removed from the medicine placement part 2011 in which the medicine instruction lamp 2013 is in the medicine operation waiting state “green blinking”. The determination unit 2037 determines the medicine placement unit 2011 removed from the calculation result of the calculation unit 2036, and determines whether or not the determined medicine placement unit 2011 is in a medicine operation waiting (green blinking) state. I do.

  When the medicine bin 2020 is removed from the medicine placement unit 2011 other than the medicine operation waiting state, in S2056, the measurement operation control unit 2033 displays the indication that the operation is erroneous on the display unit 2001 and the removed medicine bin 2020 as the original. When there is a need to display the indication to return to the medicine placement unit 2011 and the indication to remove the medicine bottle 2020 from the appropriate medicine placement unit 2011 again, the medicine instruction lamp 2013 is in an error state (flashing red). Makes a sound to stop the operator from performing the suction operation. In this case, for example, after the medicine bottle 2020 that has been accidentally removed by the operator is placed on the original medicine placement section 2011, the medicine bottle 2020 is placed on the appropriate medicine placement section 2011 again, thereby performing step S2053. Will be done again.

On the other hand, when the medicine bin 2020 is removed from the medicine placement unit 2011 in the medicine operation waiting state, an erroneous operation display, a warning, or the like is not issued, and the operator displays from the removed medicine bottle 2020 as shown in FIG. A predetermined amount displayed on the part 2001 is sucked by the syringe 2091.
When the medicine bottle 2020 from which a predetermined amount of medicine has been sucked is placed again, the measured values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 increase as shown in FIG. In S2057, when the measurement operation control unit 2033 detects a change in the measured values of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 over the threshold value V (see time t24), the first electronic balance is detected. The balance 2030, the second electronic balance 2031, and the third electronic balance 2032 are measured. By detecting the measurement value change at time t24, the measurement operation control unit 2033 sets the medicine instruction lamp 2013 to the medicine measurement state (lights in yellow), and the first electronic balance 2030 and the second electronic balance between time t25 and t26. 2031 and the third electronic balance 2032 are measured. The time t25 is a time that takes into account the time during which the measurement value is stabilized from the time t24.

In S2058, the measurement values W1k, W2k, and W3k of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 are stored in the measurement result storage unit 2035.
Subsequently, in S2059, the calculation unit 2036 calculates the placement location of the medicine bin 2020 using (Equation 1). Here, since the measured values W1j, W2j, and W3j when the removal position is calculated in S2053 and S2054 are not stored, the previously stored measured values W1i, W2i, and W3i are used as the reference values for the change amount. Will be. That is, the change amount W1 of the measurement value of the first electronic balance 2030 is (W1k-W1i), the change amount W2 of the measurement value of the second electronic balance 2031 is (W2k-W2i), and the measurement value of the third electronic balance 2032 The amount of change W3 is (W3k−W3i). Therefore, the X coordinate of the placement location is obtained as ((W2k−W2i) − (W1k−W1i)) / ((W1k−W1i) + (W2k−W2i) + (W3k−W3i)), and the Y coordinate is ((W2k-W2i) + (W1k-W1i)-(W3k-W3i)) / ((W1k-W1i) + (W2k-W2i) + (W3k-W3i)).

  Subsequently, in S2060, the determination unit 2037 determines whether or not the medicine bin 2020 has been placed on the original medicine placement unit 2011 based on the calculation result obtained from (Equation 1). When the medicine bottle 2020 is removed, the medicine instruction lamp 2013 of the removed medicine placement unit 2011 is waiting for a medicine set (flashing yellow). When the medicine bin 2020 is set on the medicine placement unit 2011 in a medicine setting waiting state, the medicine is present (green lighted).

  On the other hand, when the removed medicine bin 2020 is placed on a different medicine placement section 2011, in S2061, an indication of an erroneous operation indicating that the placement position is wrong and the appropriate medicine placement section 2011 are displayed again. Display indicating that the medicine bin 2020 is placed is performed by the display unit 2001, and the medicine instruction lamp 2013 at the position where the medicine bin 2020 is placed in error is in an error state (flashing red). In this case, for example, after the medicine bin 2020 that has been erroneously placed by the operator is removed, the medicine bin 2020 is placed on the appropriate medicine placement unit 2011 again, and the process is repeated from step S2057.

  If the placement location is appropriate in S2060, the change amount W1 of the first electronic balance 2030, the change amount W2 of the second electronic balance 2031, and the third electronic balance 2032 used for calculating the placement location (Equation 1). By applying the change amount W3 of (2) to (Equation 2), the calculation unit 2036 calculates the change weight in S2062. The change weight is obtained by (W1k−W1i) + (W2k−W2i) + (W3k−W3i). At the same time, a control may be performed so that the weight of the aspirated medicine is displayed on the transfer tab 2106. Alternatively, control may be performed such that the volume of the aspirated drug is calculated from the weight of the aspirated drug and the specific gravity of the drug and displayed on the transfer tab 2106. Further, as described above, in the present embodiment, the measurement value with the medicine bottle 2020 removed is used only for determining the placement location of the medicine bottle 2020, and the measurement value when the medicine bottle 2020 is placed is This is used for determining the placement location of the medicine bottle 2020 and calculating the amount of change in the total weight.

  Subsequently, in S2063, the determination unit 2037 determines whether or not the amount has changed (decreased) in accordance with the dispensing procedure. If it is determined that the change amount is within the error range, the control process proceeds to S2064. In the case where the control process proceeds to S2064, control may be performed to change the color of the column of medicine in which the drug solution has been aspirated in the display content of the transfer tab 2106. In step S <b> 2064, it is determined whether suction has been completed from all the medicine bottles 2020. If there are other medicine bottles 2020 that need to be sucked, the control process returns to S2052, and the medicine corresponding to the medicine placement section 2011 on which the medicine bottle 2020 to be operated next is placed. The instruction lamp 2013 enters a medicine operation waiting state (green blinking).

On the other hand, if it is determined in S2063 that the change amount is not within the predetermined error range of the change amount, the operation ends abnormally with an erroneous operation display (S2065). If the process ends abnormally in S2065, a display such as redoing only the operation on the medicine bin 2020 corresponding to the display unit 2001 may be performed.
If it is determined in S2064 that the suction from all the medicine bottles 2020 requiring suction has been completed, the control process proceeds to S2066.

In S2066, the measurement operation control unit 2033 sets the infusion pack 2021 in a waiting state by, for example, blinking all the medicine instruction lamps 2013a to 2013e in yellow.
Then, as shown in FIG. 33, all the medicine bottles 2020 are removed by the operator, and the infusion pack 2021 is placed on the placement table 2061. In S <b> 2066, an instruction may be displayed on the display unit 2001 to remove all the medicine bottles 2020 and place the infusion pack 2021 on the placement table 2061.

  When the operator presses the infusion measurement start button 2015, the measurement operation control unit 2033 recognizes the button pressing operation in S2067. Then, in S2068, the measurement operation control unit 2033 sets the medicine indication lamps 2013a to 2013e to the measurement state of the infusion pack 2021 by setting the infusion measurement state (yellow lighting), and the first electronic balance 2030, the second electronic balance 2031, and the like. The third electronic balance 2032 measures the weight of the infusion pack 2021 on the mounting table 2061. Then, the measurement result is stored in the measurement result storage unit 2035. The measurement results of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 at this time are W1m, W2m, and W3m. Since no other than the infusion pack 2021 is placed on the mounting table 2061, the total of the measured values of the first electronic balance 2030 and the second electronic balance 2031 (W1m + W2m + W3m) is the weight of the infusion pack 2021.

Next, in S2069, the measurement operation control unit 2033 controls the medicine instruction lamps 2013a to 2013e to wait for an infusion operation (green blinking). Then, the operator lifts the infusion solution from the mounting table 2061, injects and dilutes all the medicines in the syringe into the infusion solution pack 2021, and places the infusion solution pack 2021 on the mounting table 2061 again.
Next, when the operator presses the infusion measurement start button 2015 according to the operation procedure of the display unit 2001, the measurement operation control unit 2033 recognizes the button pressing operation in S2070.

  Then, in S2071, the measurement operation control unit 2033 sets the medicine instruction lamps 2013a to 2013e to the infusion measurement state (lights in yellow), and the mounting table 2061 is placed by the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032. The weight of the upper infusion pack 2021 is measured. Then, the measurement result is stored in the measurement result storage unit 2035. The measurement results of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 at this time are W1n, W2n, and W3n.

  Next, in S2072, the weight of the infusion pack 2021 stored in the measurement result storage unit 2035 in S2068 (before injection) and the weight of the infusion pack 2021 stored in the measurement result storage unit 2035 in S2071 (after injection). The calculation unit 2036 calculates the difference. Specifically, the difference in weight is (W1n−W1m) + (W2n−W2m) + (W3n−W3m). This calculation calculates the weight of the injected drug. At the same time, control may be performed such that the weight of the injected drug is calculated and displayed on the transfusion tab 2106. Alternatively, control may be performed such that the volume of the injected drug is calculated from the weight of the injected drug and the specific gravity of the drug and displayed on the transfusion tab 2106. Alternatively, control may be performed such that the amount of the injected drug is calculated from the concentration of the injected drug and displayed on the transfer tab 2106.

Subsequently, in S2073, the determination unit 2037 determines whether or not the amount has changed (increased) according to the dispensing procedure. When it is determined that the calculated change amount is within the predetermined error range of the change amount, the transfer step ends. At the same time, the status display of the “transfer” portion of the process progress navigation column 2102 is changed to “completed”.
On the other hand, if it is determined in S2073 that the determination unit 2037 has not changed by the amount according to the preparation procedure, the process ends abnormally (S2074). If the process ends abnormally in S2074, a procedure for correcting the drug amount may be displayed.

As described above, the transfer step is completed, and the preparation of the drug according to the patient's application is completed.
It should be noted that by recording the results of the above measured values, it can be used as evidence for drug preparation.
As described above, since the weight change can be automatically measured just by removing the medicine from the medicine placement section 2011 and operating the medicine and then returning to the medicine placement section 2011, the medicine is operated every time the medicine is operated. It is not necessary to move the bottle or syringe from the placement location onto the balance, measure the weight change, and move to the original placement location again, thereby improving convenience. Then, using the result calculated by the calculation unit 2036, an operator or another confirmer can confirm the accuracy of the operation.

[Other Embodiments]
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.
(A)
In the above-described embodiment, the weighing apparatus includes the display unit 2001 that displays a procedure related to drug preparation. However, the present invention is not limited to this, and for example, the display unit 2001 may not be provided. In this case, although the convenience for the operator is somewhat inferior, the procedure may be indicated by the display of the medicine instruction lamps 2013a to 2013e.

(B)
In the above embodiment, as shown in FIG. 33, the infusion pack 2021 is placed after the medicine bottle 2020 is removed from the placement table 2061, and the weight of the infusion pack 2021 is measured. As shown in FIG. 1, a placement unit for placing the infusion pack 2021 and an electronic balance for measuring the weight of the infusion pack 2021 may be further provided.

(C)
In the said embodiment, as shown in FIG. 19, although the chemical | medical agent mounting part 2011 is hollowly formed in the circular shape, it does not need to be restricted to a circular shape. For example, it may be formed in a quadrangular shape like a medicine placement unit 2041 shown in FIG. The medicine placement unit 2041 shown in FIG. 34A includes a placement surface 2041a with which the medicine bottle 2020 comes into contact, and a wall surface 2041b (an example of a restriction part) that regulates the place where the medicine bottle 2020 is placed. Alternatively, a medicine placement unit 2042 as shown in FIG. In the medicine placement section 2042 shown in FIG. 34 (b), a rib 2042b (an example of a restriction section) arranged in a square shape is provided, and the medicine bottle 2020 is placed between the ribs 2042b. A placement surface 2042a is formed. The rib 2042b can regulate the range in which the medicine bottle 2020 is placed on the placing table 2061. That is, by restricting at least the range in which the medicine bin 2020 is placed in the medicine placement section 2042, the location of the medicine bin 2020 can be specified by the weight change due to placement or pick-up of the medicine bin 2020.

(D)
In the above embodiment, the infusion pack 2021 is used in the transfusion process, but the infusion pack 2021 may not be used. For example, when medication is given to a patient who has already been instilled, the medicine mixed in the syringe is directly injected into the infusion from the syringe, or the medicine from the syringe connected to a three-way valve or the like provided in the infusion tube This is because the drug may not be diluted into the infusion pack 2021 in some cases.

(E)
Although the display portion 2001 and the barcode reader 2038 are provided in the above embodiment, they may not be provided.
In addition to or instead of the barcode reader 2038, an RFID reader may be provided. In this case, RFID or the like is attached to the application label or infusion pack 2021 in addition to or instead of the barcode, and reading is performed by the RFID reader.

(F)
In the above embodiment, the solution injection step S2004 is provided in the dispensing method. However, when all the drugs to be mixed are liquid, the solution injection step S2004 may not be provided.
(G)
In the above embodiment, the medicine bin 2020 and the medicine placement unit 2011 are associated in advance. In other words, which medicine bottle 2020 is placed on which medicine placement unit 2011 is determined in advance, and the medicine instruction lamp 2013 is instructed. However, the medicine bin 2020 and the medicine placement unit 2011 may not be associated in advance.

Hereinafter, a case where the medicine placement unit 2011 on which the medicine bottle 2020 is placed in each process is not determined in advance will be described.
(G1. Drug assembling process)
In the above embodiment, in the medicine assembling step S2003 shown in FIG. 24, the place of the medicine placement section 2011 on which the medicine bottle 2020 is placed is determined in advance, and the medicine instruction lamp 2013 corresponding to the medicine placement section 2011 is displayed. Although it is waiting for a medicine set, the location of the medicine placement unit 2011 on which the medicine bottle 2020 is placed may not be determined in advance.

  FIG. 35 shows a control flow of the drug assembling process in this case. In the control flow shown in FIG. 35, unlike FIG. 24, S2015 is not provided, and the medicine placement unit 2011 is not instructed by the medicine instruction lamp 2013. In FIG. 35, unlike the above embodiment, S2119 is provided instead of S2019, and S2020 is not provided. That is, S2014 to S2018 are performed after S2013, and the medicine placement unit 2011 on which the medicine bin 2020 is placed is calculated. In step S2119, the measurement operation control unit 2033 associates the medicine bin 2020 read by the barcode reader 2038 with the calculated medicine placement unit 2011. By performing control in this way, it is possible to associate which medicine is placed on which medicine placement section 2011 even if the medicine placement section 2011 for each medicine is not predetermined. .

When the medicine placement unit is not determined in advance as described above, the medicine placement unit 2011 is not instructed, and thus the medicine instruction lamp 2013 may not be provided. At this time, S2021 of FIG. 35 is not provided (G2. Solution injection process)
In the above embodiment, in the solution injection step S2004 shown in FIG. 27, the medicine bottle 2020 to be removed is instructed by the medicine instruction lamp 2013, and the removed medicine bottle 2020 is returned to the original medicine placement portion 2011 before being removed. Although the medicine instruction lamp 2013 is waiting for the medicine set to be placed, the place to place the medicine bottle 2020 to be removed and the medicine bottle 2020 to be removed may not be determined in advance.

FIG. 36 shows a control flow of the solution injection process in this case. In the control flow shown in FIG. 36, S2135 and S2140 are provided instead of S2035 and S2040 in FIG. 27, and S2032, S2036 and S2041 are not provided.
As shown in FIG. 36, the solution injection display is performed in S2031, and when the operator removes any drug bottle 2020, the location of the removed drug bottle 2020 is calculated in S2033 and S2034. Thereafter, the placement location of the removed medicine bin 2020 determined by the determination unit 2037 in S2135 is stored. Thereby, the kind of the medicine in the removed medicine bottle 2020 can be known, and the amount of the solution to be injected can be confirmed.

  After injecting the solution into the removed medicine bottle 2020, the medicine bottle 2020 is again placed on the medicine placement section 2011. However, the operator arbitrarily places the medicine bottle 2020 on the empty medicine placement section 2011. It may be placed. The placement location is calculated in S2037 to S2039, and the measurement operation control unit 2033 associates the medicine bin 2020 removed in S2140 with the calculated medicine placement unit 2011. Thereby, it is possible to associate with which medicine placement unit 2011 the medicine bottle 2020 into which the solution has been injected is placed. In step S <b> 2043, the determination unit 2037 determines whether the amount of the solution injected into the placed medicine bottle 2020 matches the dispensing procedure.

In addition, when the place of the medicine bin 2020 to be removed and the medicine placement unit 2011 to be placed is not determined in advance, the medicine instruction lamp 2013 may not be provided.
(G3. Transfer process)
In the above embodiment, in the transfer step S2005 shown in FIG. 30 (a), the medicine bottle 2020 to be removed is instructed by the medicine instruction lamp 2013, and the original medicine placement section before the removed medicine bottle 2020 is removed. Although the medicine instruction lamp 2013 is waiting for the medicine set to be placed on 2011, the medicine bottle 2020 to be removed and the place to place the removed medicine bottle 2020 may not be determined in advance.

The control flow of the transfer process in this case is shown in FIG. In the control flow shown in FIG. 37, S2155 and S2160 are provided instead of S2055 and S2060 in FIG. 30A, and S2052, S2056 and S2061 are not provided.
As shown in FIG. 37, a transfer indication is performed in S2051, and when an operator removes an arbitrary drug bin 2020, the location of the removed drug bin 2020 is calculated in S2053 and S2054. Thereafter, in S2155, the measurement operation control unit 2033 confirms the placement location of the removed medicine bottle 2020. Thereby, the kind of the medicine in the removed medicine bottle 2020 can be known, and the amount of medicine to be aspirated can be confirmed from the dispensing procedure.

  After a predetermined amount of medicine is aspirated from the removed medicine bottle 2020, the medicine bottle 2020 is placed on the medicine placement section 2011 again, but the operator arbitrarily places the medicine bottle on the vacant medicine placement section 2011. 2020 may be placed. This placement location is calculated in S2057 to S2059, and the measurement operation control unit 2033 associates the medicine bin 2020 removed in S2160 with the calculated medicine placement unit 2011. Since the medicine bottle 2020 read by the barcode reader 2038 and the medicine placement unit 2011 are associated with each other in the medicine assembling step S2003 or the solution injection step S2004, the removed medicine bottle 2020 is aspirated. In addition, it is possible to associate which medicine placement unit 2011 the medicine bin 2020 is placed on. In step S <b> 2063, the determination unit 2037 determines whether or not the amount of the solution injected into the placed medicine bottle 2020 matches the dispensing procedure.

In addition, when the place of the medicine bin 2020 to be removed and the medicine placement unit 2011 to be placed is not determined in advance, the medicine instruction lamp 2013 may not be provided.
As described above, in any case, it is only necessary that the positional relationship between the medicine bin 2020 and the medicine placement unit 2011 is associated.
(H)
In the above embodiment, as shown in FIG. 20, the first electronic balance 2030 and the second electronic balance 2031 are arranged outside the drug placement portions 2011a and 2011c at both ends on the front side among the plurality of drug placement portions 2011. However, it may be provided at the same position in the horizontal direction as the drug placement portions 2011a and 2011c at both ends. That is, the 1st electronic balance 2030 and the 2nd electronic balance 2031 may be provided directly under medicine mounting part 2011a and 2011c. In this case, the XY coordinates of the center of the medicine placement unit 2011a can be (−1, +1), and the coordinates of the center of the medicine placement unit 2011c can be (+1, +1).

  Further, as shown in FIG. 38, in addition to the drug placement units 2011a to 2011e, a drug placement unit 2011f may be provided on the back side, and the drug placement unit 2011a, the drug placement unit 2011c, and the drug placement unit A first electronic balance 2030, a second electronic balance 2031, and a third electronic balance 2032 may be provided directly below the portion 2011f. In this case, the coordinates of the center of the medicine placement unit 2011a are (−1, +1), the coordinates of the center of the medicine placement unit 2011b are (0, +1), and the coordinates of the center of the medicine placement unit 2011c are (+1). +1), the coordinates of the center of the medicine placement section 2011d are (−0.5, 0), the coordinates of the center of the medicine placement section 2011e are (+0.5, 0), and the coordinates of the medicine placement section 2011f are The coordinates of the center can be (0, -1).

In short, the medicines in which the support parts 2050, 2051, and 2052 of the first electronic balance 2030, the second electronic balance 2031, and the third electronic balance 2032 and the placement table 2061 are arranged outside the plurality of medicine placement parts 2011. What is necessary is just to be provided in the same position as the mounting part 2011, or the outer side.
(J)
In the above embodiment, physiological saline is used as the solution to be injected into the medicine bottle 2020. However, the solution is appropriately changed depending on the kind of the medicine, and when the medicine contained is attached with the solution. The attached solution is used. Further, the solution in the infusion pack 2021 may be used as a solution to be injected into the medicine bottle 2020, or a solution may be prepared separately.

  Since the weighing device of the present invention has the effect of improving convenience, it can be widely applied to the preparation of pharmaceutical preparations.

DESCRIPTION OF SYMBOLS 1 Display part 2 Weighing part 11, 11a, 11b, 11c, 11d, 11e Medicine mounting part (an example of a mounting part)
DESCRIPTION OF SYMBOLS 12 Infusion mounting part 13, 13a, 13b, 13c, 13d, 13e Medicine instruction | indication lamp 14 Power button 15 Infusion measurement start button 16 Infusion instruction lamp 17, 17a, 17b, 17c, 17d, 17e Switch (an example of a detection part)
20, 20a, 20b, 20c, 20d, 20e Drug bottle (an example of a drug container)
21 infusion pack 30 first electronic balance (an example of a measuring unit)
31 Second Electronic Balance 32 Switch Operation Detection Unit 33 Measurement Operation Control Unit 34 Dispensing Procedure Storage Unit 35 Measurement Result Storage Unit 36 Calculation Unit 37 Determination Unit 38 Barcode Reader (Example of Drug Detection Unit)
2001 Display unit 2002 Weighing unit 2011, 2011a, 2011b, 2011c, 2011d, 2011e Drug placement unit (an example of a placement unit)
2013, 2013a, 2013b, 2013c, 2013d, 2013e Drug instruction lamp 2014 Power button 2015 Infusion measurement start button 2020, 2020a, 2020b, 2020c, 2020d, 2020e Drug bottle (an example of a drug container)
2021 Infusion pack 2030 First electronic balance (an example of a measurement unit, an example of a detection unit)
2031 Second electronic balance (an example of a measurement unit, an example of a detection unit)
2033 Measurement operation control unit 2034 Dispensing procedure storage unit 2035 Measurement result storage unit 2036 Calculation unit 2037 Determination unit 2038 Bar code reader (an example of a drug detection unit)
2041 Drug placement portion 2041a Placement surface 2041b Wall surface (an example of a restriction portion)
2042 Drug placement portion 2042a Placement surface 2042b Rib (an example of a restriction portion)
2090, 2091 Syringe

Claims (8)

A plurality of placement units arranged on a plane on which medicines contained in a medicine container are placed, and
A detection unit for detecting placement and removal of the medicine in each of the placement units;
Three measuring units arranged in a triangular shape for measuring the total weight of the drugs placed on the plurality of placing units;
A calculation unit that calculates a change in the weight of the drug before and after the removal of the removed drug by calculating a total weight measurement result of the drug from the sum of the measurement results of the three measurement units. A weighing device provided.   The weighing unit according to claim 1, wherein the three measuring units are provided at the same position as the outermost preceding mounting unit or at an outer position from the outermost preceding mounting unit among the plurality of mounting units. apparatus. The detection unit is also used as the measurement unit,
The weighing device according to claim 1 or 2, wherein detection of placement and removal of the medicine is performed based on a change in weight of each of the three measurement units.   The weighing apparatus according to any one of claims 1 to 3, wherein the placement unit includes a regulation unit that regulates a place where the medicine is placed. A drug detection unit for detecting the type of the drug;
The weighing apparatus according to claim 1, further comprising: a measurement operation control unit that associates the place of the placement unit with the medicine placed on the placement unit based on the detection result of the medicine detection unit. The weight change of the drug is caused by an operation on the drug between before and after the removal,
A determination unit configured to determine whether the operation is an operation in accordance with a procedure relating to preparation of a medicine set in advance based on a change in the weight of the medicine associated with the place of the placement unit; The weighing device according to claim 5.   The weighing apparatus according to claim 1, further comprising a display unit configured to display a procedure related to preparation of a medicine set in advance.   The weighing device according to claim 7, wherein the content of the display unit is changed based on a change in the weight of the medicine.

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