JP2018161360A - Liquid medicine dispensing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid agent injection device which can enhance a contamination washing effect to a contamination by adhesion of a liquid agent.SOLUTION: A liquid agent injection device comprises: a housing; plural delivery parts 22 comprising a holding part 21 for holding a liquid medicine container V1 and a delivery channel 22a for discharging a liquid agent from the liquid medicine container V1; a container transport part 2 for moving each delivery part 22; a delivery drive part for opening and closing a part of the delivery channel 22a for discharging the liquid agent to a container V2 for patient; a washing part 3 comprising a washing water tank 38a, a washing nozzle 30 for injecting the washing water to the delivery channel 22a, and a washing water pump 37 for making the washing water circulate toward the washing nozzle 30, and washing the delivery channel at the washing position; a washing cup 33 for receiving the washing water injected; an input part to which injection processing information is input, the injection processing information including at least a kind and a volume of the liquid agent; a control part C1 for determining an injection work flow based on the injection processing information and driving the container transport part 2, the delivery parts 22 and the washing part 3; and a heater 35 for heating the washing water.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a liquid medicine dispensing device that is equipped with a plurality of liquid chemical containers containing liquid medicine and dispenses a predetermined amount of liquid medicine into a patient container automatically in accordance with a prescription instruction.

Conventionally, as such a liquid medicine dispensing device, for example, there is Patent Document 1 shown below.
The liquid medicine dispensing device is a device that dispenses a predetermined amount of one or a plurality of types of liquid medicines according to a prescription for a patient.

  Such a liquid medicine dispensing device individually holds chemical liquid containers related to a plurality of liquid medicines, and liquid medicines are sequentially injected from these chemical liquid containers into the patient container. In many cases, the plurality of chemical liquid containers are arranged side by side on a predetermined path provided inside the apparatus. Therefore, when a specific chemical solution container is moved to the position of the patient container, a liquid drug solution container that is not a target for dispensing may pass over the patient container.

Therefore, there is a possibility that the liquid medicine remaining in the dispensing flow path of the chemical solution container that is not the target of dispensing may drop onto the patient container, and there is a possibility that accurate dispensing work cannot be performed.
Even if the dripping position of the excess liquid medicine is not the container for the patient, if the liquid medicine is dripped to another place in the apparatus, the sanitary condition of the liquid medicine dispensing device may not be sufficiently maintained.

  In order to solve such a problem, the liquid medicine dispensing device shown in Patent Document 1 includes a mechanism for cleaning the dispensing flow path provided in each chemical liquid container. Specifically, a mechanism (see paragraphs [0104] and [0116]) for injecting cleaning water toward the nozzle provided at the tip of the discharge channel, and air is continuously supplied to the nozzle to dry the cleaning water. This is a spraying mechanism (see paragraphs [0104] and [0117]). The washing water jetting mechanism and the air jetting mechanism are adjacent to each other along the annular region, and the chemical solution container is sequentially transported to both positions and subjected to a cleaning process and a drying process. Thus, the dispensing channel can be cleaned simply by moving the chemical container to each position.

WO2011 / 118835

  In the above-described conventional technique, cleaning water is jetted into the dispensing channel, but even in that case, the dispensing channel is not always sufficiently cleaned. Depending on the liquid agent, the contained components and the viscosity are different, and further, the degree of adhesion of the liquid agent to the dispensing flow path varies depending on the ease of drying.

  If the excess liquid agent continues to adhere to the inner surface of the dispensing channel, the liquid substance solidified grows and the channel area of the dispensing channel decreases. As a result, the outflow direction of the liquid medicine discharged from the dispensing channel is disturbed, and the liquid medicine may be scattered outside the patient container. Even when liquid medicine is discharged into the patient container, if the dispensing channel is narrow, the flow shape of the discharged liquid medicine may be deformed, and the dispensed liquid medicine may foam. As a result, it becomes difficult to confirm the amount of dispensed liquid medicine. Therefore, in such a liquid medicine dispensing apparatus, it is necessary to always keep the liquid dispensing channel and the like clean.

  In view of such a problem, conventionally, there has been a demand for providing a liquid medicine dispensing device that can effectively clean dirt caused by liquid medicine adhesion.

(Feature configuration)
The characteristic configuration of the liquid medicine dispensing device according to the present invention is as follows:
A housing,
A holding part for holding a chemical liquid container filled with liquid medicine, and a plurality of dispensing parts provided with a dispensing flow path for discharging the liquid medicine from the chemical liquid container;
A container transport section for moving each of the plurality of dispensing sections to a dispensing position for dispensing the liquid medicine to a patient container and a standby area where the liquid medicine is not dispensed to the patient container;
A dispensing drive unit that opens and closes a part of the dispensing channel of the dispensing unit at the dispensing position to dispense the liquid medicine to the patient container; and
A cleaning water tank for storing cleaning water, a cleaning nozzle for injecting the cleaning water toward the discharge channel, a cleaning channel from the cleaning water tank to the cleaning nozzle, and the cleaning water toward the cleaning nozzle A washing water pump for flowing, and a washing unit for washing the dispensing channel when the dispensing unit is at a washing position in the standby region;
A washing cup that receives the washing water provided at the washing position and used for washing the discharge channel;
An input unit for inputting dispensing processing information including at least the type and amount of the liquid medicine to be dispensed;
A dispensing work flow is determined based on the dispensing process information, and includes a controller that drives the container transport unit, the dispensing drive unit, and the cleaning unit,
The cleaning unit includes a heater for heating the cleaning water.

(effect)
After washing water is heated by the heater and sprayed to the dispensing channel, it becomes easy to remove the liquid agent adhering to the dispensing channel by the dispensing operation. Therefore, the liquid medicine dispensing device can always be maintained in a clean state. Further, since the cleaning effect is enhanced, the amount of cleaning water to be used can be reduced, and the liquid medicine dispensing device can be made compact, for example, the cleaning water tank for storing the cleaning water can be made small.

(Feature configuration)
In the liquid medicine dispensing device according to the present invention, the heater can be provided in the cleaning channel.

(effect)
The cleaning flow path is a flow path from the cleaning water tank to the cleaning nozzle, and substantially the entire amount of cleaning water flowing therethrough is jetted from the cleaning nozzle. That is, since only the cleaning water used for cleaning is heated, the heating energy can be minimized. Also, the heater can be small and the cost can be reduced. Further, the space for arranging the heater is reduced, the assembly of the liquid medicine dispensing device is facilitated, and the amount of heat generated inside the housing is suppressed, so that the influence on the liquid medicine is reduced.

(Feature configuration)
In the liquid medicine dispensing apparatus according to the present invention, the cleaning water remaining in the cleaning flow path after jetting the cleaning water is returned to the cleaning water tank side from the heater position by the cleaning water pump. It can be constituted as follows.

(effect)
When the cleaning water pump is stopped after spraying the cleaning water, the cleaning liquid remains in the entire cleaning flow path. If the heater is heated at the next cleaning in this state, the cleaning water may flow out at an unexpected timing. For example, when the temperature overshoots a set value when the heater temperature is increased to a predetermined value, the cleaning water in the cleaning flow channel boils, and in particular, the cleaning water on the cleaning nozzle side from the heater is jetted. There is. Since this injection is not controlled, the cleaning water scatters to an unintended portion of the liquid medicine dispensing device, causing the inside of the device to become dirty.
However, by returning the cleaning water to the cleaning water tank side from the position of the heater, the expansion of the cleaning water can be prevented, and the inside of the liquid medicine dispensing device can be kept clean.

(Feature configuration)
In the liquid medicine dispensing apparatus according to the present invention, the dispensing work flow can be determined so that the washing water is heated by the heater immediately before the washing water is flowed by the washing water pump. .

(effect)
By adopting this configuration, cleaning water used for cleaning is intensively heated in a short time, and wasteful consumption of energy is prevented. In addition, if wasteful heat generation is prevented, there is no risk of the temperature of the liquid medicine rising, and the quality of the liquid medicine becomes stable.

(Feature configuration)
In the liquid medicine dispensing device according to the present invention, the flow of the washing water by the washing water pump is performed after a predetermined time has elapsed after the heater has risen to a preset temperature. May be determined.

(effect)
The temperature of the heater is often maintained at a set temperature using various temperature detection circuits. The degree of temperature rise varies depending on the amount of power input to the heater. For example, when the amount of power input is particularly large, the heater temperature may exceed the target temperature. When cleaning water is jetted in such a state, a part of the cleaning water boils and the cleaning liquid scatters to an unintended location. Therefore, in this configuration, in addition to grasping the temperature rise state of the heater, the stabilization time of the heater temperature is ensured, and appropriate washing water can be injected.

(Feature configuration)
In the liquid medicine dispensing device according to the present invention, the washing nozzle can be inclined with respect to the vertical direction, and the washing water can be jetted obliquely upward.

(effect)
Some dispensed liquid agents have high viscosity, and if this adheres to the cleaning nozzle, the injection direction of the cleaning water may be disturbed or injectable. Therefore, in this configuration, the position of the discharge channel is set obliquely upward with respect to the position of the cleaning nozzle, and the cleaning water is jetted obliquely upward from the cleaning nozzle. This prevents the sprayed cleaning water from dripping onto the cleaning nozzle, thereby preventing the cleaning nozzle from being soiled and stabilizing the cleaning function.

(Feature configuration)
In the liquid medicine dispensing device according to the present invention, a communication port that communicates with the dispensing channel is provided at an intermediate position of the dispensing channel, and an air injection unit that blows air into the communicating port is spaced apart from the dispensing channel. It can be provided in a position.

(effect)
When the washing water is sprayed onto the discharge channel, some cleaning water remains inside the discharge channel. If the remaining washing water is left as it is, the liquid medicine is diluted at the next dispensing, which is not preferable.
Moreover, the remaining liquid medicine may hang down to an unspecified part by the vibration at the time of a holding | maintenance part being conveyed, or mere gravity. Therefore, by blowing air from a communication port provided at an intermediate position of the discharge channel, at least cleaning water remaining on the tip side with respect to the communication port can be discharged from the discharge channel.
Thereby, the dispensing operation of an accurate amount of liquid medicine becomes possible, and the inside of the liquid medicine dispensing apparatus can be prevented from becoming dirty.

  In addition, the air injection unit and the holding unit having the discharge flow channel are separated from each other by separating the air injection unit from the discharge flow channel and performing air supply to the communication port in the open air. Can do. Accordingly, the degree of freedom in configuring both parts is increased, and a rational device is easily obtained.

(Feature configuration)
In the liquid medicine dispensing device according to the present invention, it is possible to provide a branch channel from the position between the heater and the cleaning nozzle in the cleaning channel to the cleaning cup.

(effect)
The washing cup is a member that receives the washing water after washing the washing channel. Therefore, various liquid agents adhere and dirt easily accumulates. Therefore, by adopting this configuration, the heated washing water can be supplied to the washing cup, and the washing cup can always be kept clean.

(Feature configuration)
In the liquid medicine dispensing device according to the present invention, the washing cup can be provided in a drawer portion that can be pulled out from the housing.

(effect)
Washing water adheres to the washing cup in a scattered state. Further, the shape of the washing cup is not necessarily a simple shape because of the installation in the apparatus. Therefore, the cleaning cup is easily cleaned by adopting this configuration.

(Feature configuration)
In the liquid medicine dispensing device according to the present invention, the first dispensing for dispensing the plurality of liquid medicines according to the first set is performed on the patient container, and then the second container is applied to the patient container. The dispensing flow path that is performed prior to the second dispensing of the liquid medicine contained in both the first group and the second group when performing a second dispensing for dispensing a plurality of the liquid medicines. It is possible to determine the dispensing work flow in which the cleaning is omitted.

(effect)
In order to keep the dispensing channel clean, it is preferable to clean the dispensing channel every time the liquid medicine is dispensed. However, it is also necessary to reduce the work time in order to perform dispensing work following a plurality of patient bottles. In the liquid medicine dispensing device of this configuration, since warm water is used as cleaning water, a higher cleaning effect can be expected as compared with the case of using room temperature water. Therefore, if there is something common to the liquid medicine used for the continuous first dispensing and the second dispensing, it is possible to omit the washing of the discharge flow path related to the liquid medicine, and shorten the dispensing work. I am trying.

(Feature configuration)
In the liquid medicine dispensing device according to the present invention, each of the plurality of dispensing parts is movable along one annular path, and receives the liquid medicine suspended from the dispensing flow path below the annular path. An annular receiving portion can be provided.

(effect)
A predetermined amount of the liquid medicine remaining in the dispensing flow path can be removed by air or the like jetted from the air jet section. However, in order to obtain a configuration that completely removes the liquid medicine remaining in the dispensing channel, the apparatus becomes complicated. Therefore, as in this configuration, by providing an annular receiving portion having a shape along an annular path through which the chemical solution container is transported, it is possible to maintain the cleanliness inside the device while having a simple device configuration.

Explanatory drawing which shows the structure of the liquid medicine dispensing apparatus which concerns on this embodiment. The perspective view which shows the principal part of the liquid agent dispensing apparatus which concerns on this embodiment The perspective view which shows the external appearance of the liquid agent dispensing apparatus which concerns on this embodiment Explanatory drawing which shows the structure of the drawer part which concerns on a washing | cleaning part Perspective view showing the appearance of the payout part Exploded perspective view showing structure of payout part Explanatory drawing which shows the confluence | merging part of an air receiving flow path and a discharge flow path Flow chart showing the procedure for cleaning the dispensing nozzle Flow chart showing the procedure for cleaning the dispensing nozzle

[First Embodiment]
〔Overview〕
An embodiment of a liquid medicine dispensing device according to the present invention will be described with reference to FIGS. 1 to 9.
This liquid medicine dispensing device S can be equipped with ten types of chemical liquid containers V1, and automatically fills a patient container V2 with a predetermined amount of chemical liquid based on the dispensing process information.

  As shown in FIG. 3, the apparatus has a box-shaped housing 1, and a front panel 11 and a lid 15 can be opened and closed. The patient container V2 can be exchanged by opening and closing the lid portion 15, and the chemical liquid container V1 can be exchanged by opening and closing the panel 11. The panel 11 is provided with an input button for inputting various dispensing processing commands and a display unit 12 for displaying the progress of dispensing work. On the right side of the display unit 12, an emergency stop button 14 is provided that is used when a malfunction occurs in the apparatus. Below the lid portion 15 is a dilution water injection button 16 for adding dilution water to the patient container V2 for which the automatic dispensing operation has been completed. Below that, there are provided a barcode reader 17 that reads the label V11 of the chemical container V1 to be mounted, and a paper discharge unit 18 that ejects labels and various recording papers to be attached to the patient container V2. In addition, an air conditioning unit 10 that adjusts the internal temperature of the housing 1 and an indicator lamp 19 that informs the progress of dispensing work are provided on the ceiling of the housing 1.

  As shown in FIG. 1 and FIG. 3, the liquid medicine dispensing device S injects liquid medicine into the housing 1 while holding the chemical liquid container V <b> 1 having liquid medicine and carrying the liquid medicine. A patient container holding unit 6 for placing the patient container V2, a cleaning unit 3 for cleaning the dispensing nozzle 22b of each chemical container V1, and a control unit C1 for controlling the operation of each part of the apparatus are provided. .

  The container conveyance part 2 conveys the chemical | medical solution container V1 which concerns on dispensing to the position where the container V2 for patients was put in order. The chemical liquid containers V1 filled with the liquid medicine are held one by one in the individual holding portions 21 one by one. In the lower region of the holding portion 21, a dispensing channel 22a for dispensing the liquid medicine in the chemical solution container V1 to the patient container V2 is provided.

  The dispensing unit 22 includes a dispensing channel 22a extending from the chemical solution container V1 in order to dispense the liquid medicine. As shown in FIGS. 1, 5, and 6, the dispensing flow path 22 a includes a dispensing tube 22 e that extends from the mouth of the chemical liquid container V <b> 1 and a dispensing nozzle 22 b that is provided at the tip of the dispensing tube 22 e. The dispensing tube 22e is formed of a flexible resin or the like.

  When the holding portion 21 is at the payout position P3, the rotary cam 23b of the payout drive unit 23 shown in FIG. 2 is close to the intermediate position of the payout tube 22e, and the payout tube 22e is narrowed by the rotation of the rotary cam 23b. Liquid medication is dispensed. When the liquid medicine is dispensed, the plug member 22g provided so as to be able to contact and be separated from the lower portion of the dispensing tube 22e is opened by the rotating cam 23b.

  As shown in FIGS. 1 and 2, the container transport unit 2 transports the plurality of holding units 21 to the position of the patient container V2. Each holding | maintenance part 21 is attached to the circumferential support direction with the predetermined space | interval with respect to the cyclic | annular support body 20 which can rotate around a vertical axis, for example. For example, two of the holding portions 21 are provided with a cold container 24 and can hold a liquid medicine that requires constant cooling. The annular support body 20 is rotatably supported by a plurality of support wheels 26 arranged along the circumferential direction. The rotational support of the annular support 20 can be performed using, for example, an annular rack gear 20b provided on the annular support 20, and a motor 20a engaged with the rack gear 20b. Thereby, the chemical solution container V1 moves on the annular path together with the annular support 20. On this annular path, a dispensing position P3, which is a position for dispensing the liquid medicine to the patient container V2, and a first washing position P1 and a second washing position P2, which will be described later, are provided.

  At the payout position P3, a patient container holding portion 6 for holding the patient container V2 is provided. As shown in FIGS. 1 and 2, the patient container holding unit 6 includes a lifting platform 61 on which the patient container V2 is placed and moves up and down. The elevator 61 is provided at the lower part of the front position of the liquid medicine dispensing device S, and the user opens the lid 15 and places the patient container V2 on the elevator 61. The lifting platform 61 is provided with a fixing portion 62 for fixing the position in a state where the patient container V2 is sandwiched. The lifting platform 61 is moved up and down by a lifting motor 63 provided on the back surface and a drive screw 64 that is rotationally driven by the lifting motor 63. The elevator 61 rises according to the height of the patient container V2, and can adjust the mouth of the patient container V2 to the position of the dispensing nozzle 22b.

  In FIG. 2, a chemical liquid container V <b> 1 indicated by a broken line beside the patient container holding part 6 indicates a chemical liquid container V <b> 1 that is attached to and detached from the predetermined holding part 21. For example, when replacing the emptied chemical liquid container V1, the holding unit 21 is moved to the upper part of this position, and the holding unit 21 is rotated downward. The chemical solution container V1 held by the holding part 21 passes through the center position of the annular support 20 and assumes a posture indicated by a broken line, where the chemical solution container V1 is detached.

  The liquid medicine dispensing device S of the present embodiment includes a cleaning unit 3 that cleans the dispensing nozzle 22b when the dispensing nozzle 22b is at the cleaning position in the standby area. As shown in FIG. 1, the cleaning unit 3 mainly includes a cleaning water tank 38 a that stores cleaning water, a cleaning nozzle 30 that injects the cleaning water toward the discharge unit 22, and a cleaning water tank 38 a. A cleaning flow path 3a that reaches the cleaning nozzle 30, a cleaning water pump 37 that causes the cleaning water to flow toward the cleaning nozzle 30, an air injection unit 3c that injects air to the discharge unit 22 and removes the cleaning water after cleaning, and a cleaning position The cleaning cup 33 is provided at the first cleaning position P1, which is one of the above, and receives the cleaning water used for cleaning the dispensing portion 22. Further, the liquid medicine dispensing device S of the present embodiment includes a heater 35 for heating the cleaning water and a sensor 36 for detecting whether the cleaning water is present in the cleaning flow path 3a. The cleaning unit 3 will be described later.

  The container transport unit 2, the patient container holding unit 6, the cleaning unit 3, and the like are driven in conjunction with each other, and these drives are controlled by the control unit C <b> 1. Dispensing processing information necessary for control can be input from an input unit 13 provided on the panel 11 of the liquid medicine dispensing device S. The dispensing process information includes at least information related to chemicals including the type and amount of liquid medicine to be dispensed and information related to work processing including the dispensing order of each liquid medicine. The control unit C1 determines a dispensing work flow in which the dispensing work is most efficiently performed based on the dispensing process information, and links the container transport unit 2, the dispensing unit 22, the cleaning unit 3, and the like. Note that the dispensing process information can also be transmitted to the control unit C1 as created by another input terminal C2.

[Washing part]
FIG. 1 schematically shows the structure of the main part of the liquid medicine dispensing device S. Each chemical solution container V <b> 1 held by the holding unit 21 moves on the annular path together with the annular support 20. In FIG. 1, each chemical solution container V <b> 1 is schematically illustrated so as to simply move in the horizontal direction.

  FIG. 1 shows four chemical liquid containers V1 (a) to (d). FIG. 1A shows the cleaning position at the first cleaning position P1 and the cleaning with the cleaning water, and FIG. 1B shows the second cleaning position P2 and the air injection unit 3c. The washed water after washing is removed by the air jetted from to the discharge channel 22a. FIG. 1 (c) shows the liquid medicine being dispensed to the patient container V2, and FIG. 1 (d) shows the label V11 attached to the chemical container V1, for example, a bar code reader 7a. The reading unit 7 reads and confirms the chemical name.

  In FIG. 1A, the holding portion 21 is positioned so that the cleaning water sprayed from the cleaning nozzle 30 reaches the tip of the discharge nozzle 22b. This position is a substantially central position of the cleaning cup 33 that receives the sprayed cleaning water. The cleaning cup 33 has a size extending between the first cleaning position P1 and the second cleaning position P2, and the cleaning water sprayed at the first cleaning position P1 and the cleaning removed at the second cleaning position P2. Can catch water.

  The cleaning nozzle 30 is provided obliquely upward. As a result, the cleaning water jetted from the cleaning water reaches the dispensing nozzle 22b located obliquely above, and drops into the lower cleaning cup 33 after performing the cleaning operation. However, since the cleaning water is jetted obliquely upward, most of the falling cleaning water falls to a position different from that of the cleaning nozzle 30, so that the cleaning nozzle 30 is hardly contaminated.

  In the present embodiment, a heater 35 for heating the cleaning water is provided. The heater 35 is configured using, for example, a Peltier element. In the case of a Peltier element, the temperature of the cleaning water is raised in a relatively short time by energization, so that the cleaning water can be heated quickly.

  By heating the cleaning water, the liquid agent adhering to the tip of the dispensing nozzle 22b is easily dissolved, and the cleaning effect can be enhanced. Moreover, the quantity of the washing water to be used can be reduced because the liquid medicine is easily dissolved. As a result, the time for the cleaning operation is shortened, and the dispensing operation is made efficient throughout. Furthermore, by raising the temperature of the washing water, generation of mold in the liquid medicine dispensing device S can be suppressed, and the sanitary condition of the liquid medicine dispensing device S is also increased.

  In addition, the heating temperature of washing water is about 60-70 degreeC. If the temperature of the washing water is 40 ° C. or higher, a sterilization effect can be expected. However, by setting a slightly higher temperature, the liquid medicine can be dissolved quickly and germs can be killed more reliably. For that purpose, for example, the heater 35 is heated to about 100 ° C. in consideration of heat loss in the process of transferring heat from the heater 35 to the cleaning water. Heating the heater 35 is preferably performed immediately before the washing water is jetted. Thereby, energy consumption is restrained, and excessive heat is dissipated inside the liquid medicine dispensing device S, thereby preventing the disadvantage that the temperature of the liquid medicine changes.

  As a method for adjusting the temperature, it is preferable that the controller C1 feedback-controls the energization amount to the heater 35 in accordance with the set temperature of the cleaning water. Further, simple on / off control in which predetermined power is supplied to the heater 35 for a predetermined time may be used. The on / off time may be set to an optimum value in advance in consideration of the energization amount and the heating speed of the heater 35. In this case, although the temperature reached by the washing water includes a certain amount of error, the apparatus configuration is extremely simple.

  For the temperature setting as described above, it is not necessary to provide a thermometer or the like for measuring the temperature of the washing water by grasping in advance the energization time and the resulting temperature rise tendency of the washing water. However, in order to perform more accurate temperature control, it is preferable to provide a necessary thermometer at any location in the cleaning flow path 3a, around the cleaning nozzle 30, and the like.

  As shown in FIG. 1, the heater 35 is provided between the cleaning water pump 37 and the cleaning nozzle 30 in the cleaning flow path 3 a extending from the cleaning water tank 38 a to the cleaning nozzle 30. By providing the heater 35 at this position, it is possible to heat only the cleaning water immediately before the injection, and it is possible to reduce unnecessary energy consumption.

  Further, in the cleaning unit 3 of the present embodiment, after the cleaning water is jetted from the cleaning nozzle 30, the cleaning water pump 37 is reversely rotated so that the cleaning water is supplied to the cleaning water tank 38 a from the position of the heater 35. Can be returned to the side. This is to prevent the washing water from unexpectedly leaking from the washing nozzle 30 when the heater 35 is turned on at the next washing.

  For example, if the cleaning water is left in a state where the cleaning water remains up to the tip of the cleaning nozzle 30 after the cleaning water is jetted, the cleaning water remains in the cleaning flow path 3a when the cleaning water is heated in the next cleaning. There is a case where the cleaning water ahead of the heater 35 unintentionally leaks from the cleaning nozzle 30 due to expansion of air or the like. The cleaning water leaking out in this way is scattered on the front end of the cleaning nozzle 30 and the inner surface of the cleaning cup 33, but the cleaning water at the front end of the cleaning nozzle 30 is already cooled and leaks to the outside in a low temperature state. . As a result, the liquid medicine adhering to the cleaning part 3 cannot be dissolved reliably, and on the contrary, it causes the inside of the liquid medicine dispensing apparatus S to become dirty. In addition, germs may be generated at the leaked site due to leakage of washing water that is not sufficiently heated.

  Therefore, in this embodiment, every time the cleaning water jetting is finished, the cleaning water previously from the heater 35 is returned to the side of the cleaning water tank 38a, and the next cleaning water jet is surely heated at a high temperature. We are going to spray water.

  As the washing water pump 37, for example, a tube pump that can be easily assembled in the washing flow path 3a connected to the washing water tank 38a is suitable. However, other than these, various pumps such as a gear pump, a diaphragm pump, a tube pump, a piston pump, and a centrifugal pump can be used.

  The first cleaning position P1 is set to an integral multiple of the interval between the dispensing nozzles 22b with respect to the liquid dispensing position P3. This configuration is advantageous because the liquid medicine can be discharged and the discharge nozzle 22b can be cleaned simultaneously.

(Air injection part)
An air nozzle 31 is provided in the vicinity of the cleaning nozzle 30 in the cleaning cup 33. The air nozzle 31 removes the washing water adhering to the discharge nozzle 22b after washing with the washing water. As shown in FIG. 1, the holding unit 21 is moved to a second cleaning position P2 that has been moved a predetermined distance from the first cleaning position P1 for cleaning with cleaning water, and the axis of the air nozzle 31 serves as the outlet nozzle 22b. It is set to the state which faces the blowing inlet 25a provided beside. The control unit C1 stops the movement of the holding unit 21 at the second cleaning position P2, and then operates the air pump 3p to inject air from the air nozzle 31. The air pump 3 </ b> P is provided in the air supply path 3 b that reaches the air nozzle 31. Further, if various air filters 3d are provided on the upper side of the air pump 3P, the air nozzle 31 can be prevented from clogging.

  As shown in FIGS. 5 and 6, one discharge nozzle 22 b is provided with a blow-in port 25 a for blowing air from the air nozzle 31. As shown in FIG. 6, a substantially annular bank portion 25b with a part cut away is formed around the air inlet 25a. The notch 25h is provided on the air nozzle 31 side. Even if the direction of the air injected from the air nozzle 31 is different from that of the air inlet 25a, the bank portion 25b guides the air to the air outlet 25a and guides a lot of the air to the discharge passage 22a. It is like that.

  Further, the blowing port 25a is located at a depth side by a predetermined distance from the tip position of the dispensing nozzle 22b. By retreating in this manner and separating the position of the blow-in port 25a from the position of the discharge nozzle 22b, cleaning air can be injected only into the blow-in port 25a, and the drainage effect of the cleaning water is enhanced.

  If the cleaning water adheres to the air inlet 25a, it is removed by air injection or flows through the air receiving passage 25d by air injection and finally discharged from the discharge nozzle 22b. The However, when the cleaning water enters the inside of the blow-in port 25a, the cleaning time of the discharge nozzle 22b becomes slightly longer. Therefore, it is advisable to set the air injection time in consideration of that amount.

  The air receiving member 25 in which the blowing port 25a is formed is obtained by, for example, injection molding using a resin material. An air inlet 25a for receiving air is formed at one end of the air receiving member 25, and a space is formed inside the air receiving member 25 in a state of communicating with the air inlet 25a. The member on the side on which the other discharge nozzle 22b to which the air receiving member 25 is attached is also injection-molded with the same resin material, and the protruding portion 25e provided on the first surface 25g of the air receiving member 25 is discharged. The air receiving member 25 and the payout portion 22 are assembled while being inserted into the recess 22d provided on the second surface 22f of the portion 22. After assembling the air receiving member 25 to the dispensing part 22, a fixing screw (not shown) is screwed into the dispensing part 22 through a hole 25p provided on the back surface of the air receiving member 25, and the air receiving member 25 is fixed. .

  As shown in FIG. 7, a communication port 22c communicating with the middle of the dispensing flow path 22a through which the liquid medicine is dispensed is formed on the dispensing nozzle 22b side. Air from the convex portion 25e of the air receiving member 25 flows into the communication port 22c. The communication port 22c is formed at an angle along the flow direction of the payout flow path 22a. As a result, the cleaning air that has flowed into the discharge passage 22a is vigorously discharged toward the discharge nozzle 22b, so that the communication port 22c exhibits an ejector function. Therefore, the washing water remaining upstream of the payout flow path 22a can also be reliably removed.

  In addition, by providing the communication port 22c that communicates in the middle of the discharge channel 22a, the liquid agent may be diverted to the air receiving member 25 side through the communication port 22c when the liquid agent is discharged. However, in this case, the liquid medicine must be diverted against the direction of the main flow, and the actual diversion amount is small. Even if the liquid medicine flows to the air receiving member 25 side, it can be discharged through the communication port 22c by the next air injection.

  In addition, by configuring the air receiving member 25 separately from the paying-out part 22 in this way, it becomes easy to freely set the path of the air receiving flow path 25d. Therefore, the air taken in near the outlet of the discharge nozzle 22b can be guided to the inner part of the discharge nozzle 22b, and much of the washing water remaining in the discharge flow path 22a can be removed.

[Washing cup]
As shown in FIG. 1, the cleaning cup 33 has a function of receiving the cleaning water that is dropped after being injected to the discharge nozzle 22 b and a function of receiving the cleaning water discharged from the discharge nozzle 22 b by the air from the air nozzle 31. Have. Therefore, the cleaning nozzle 30 and the air nozzle 31 are provided at positions as close to the central position of the cleaning cup 33 as possible. However, the cleaning water may be scattered by the momentum of the spray and may be scattered throughout the cleaning cup 33. Therefore, the cleaning cup 33 of the present embodiment is provided with a cup cleaning nozzle 32 for removing dirt from the cleaning cup 33 as shown in FIG.

  Two cup cleaning nozzles 32 are provided in the cleaning cup 33. Each cup cleaning nozzle 32 is directed in the opposite direction along the circumferential direction of the cleaning cup 33. These cup cleaning nozzles 32 are provided at the tip of the branch flow path 3a1 installed across the cleaning cup 33 from the position between the heater 35 and the cleaning nozzle 30 in the cleaning flow path 3a. Accordingly, the bottom surface of the cleaning cup 33 can be cleaned in order from the upper edge of the inclined bottom portion of the cleaning cup 33 toward the lower center portion.

  The cleaning water discharged from the cup cleaning nozzle 32 also passes through the heater 35. Therefore, the control unit C1 may heat the water for cleaning the cleaning cup 33 according to the type of liquid medicine. Further, regardless of the type of liquid medicine, for example, heated washing water may be discharged every certain time. When discharging, the switching valve 39 provided on the downstream side of the heater 35 is driven. In the driving, the cleaning water may be circulated only to the cup cleaning nozzle 32, or the cleaning water may be supplied to the cup cleaning nozzle 32 together with the cleaning nozzle 30. In particular, by switching the switching valve 39 so that the cleaning water is supplied only to the cleaning nozzle 30, the cleaning water does not flow into the cleaning cup 33 when the cleaning nozzle 30 is cleaned. Water waste can be prevented.

  Further, as shown in FIG. 4, a cover 34 is provided on the cup cleaning nozzle 32. The cover 34 prevents the washing water sprayed to the dispensing nozzle 22b from rebounding and the washing water discharged from the dispensing nozzle 22b by air injection from adhering to the cup washing nozzle 32.

  Further, as shown in FIG. 1, the cleaning cup 33 is provided with a central first discharge port 33c and a second discharge port 33d at a higher position. By providing the second discharge port 33d in this way, the cleaning water can be reliably discharged even if the first discharge port 33c is clogged.

  As shown in FIG. 1 and FIG. 2, below the annular support 20 and below the movement trajectory of the dispensing nozzle 22b of each dispensing portion 22, an annular receptacle that receives liquid agent dripping from the dispensing nozzle 22b. Part 4 is provided. For example, the annular receiving portion 4 has a U-shaped cross-sectional shape perpendicular to the longitudinal direction, and is configured so that it can be connected as a part of several parts. These divided parts are detachably fixed to the shelf 1a of the housing 1 to which the annular support 20 is fixed. If removable, the annular receiving part 4 can be removed and cleaned at an appropriate time. The annular receiving portion 4 is preferably formed using a resin material that is not altered by the liquid agent.

(Leader)
The annular receiving portion 4 is provided with a region divided in the middle, and the cleaning cup 33 is arranged in this divided region. In the present embodiment, the annular receiving portion 4 and the cleaning cup 33 have continuity, and one annular receiving portion is formed. However, the washing cup 33 is often contaminated with extra liquid agent compared to the other annular receiving portions 4. Therefore, as shown in FIG. 2, the cleaning cup 33 is provided in the first drawer portion T <b> 1 so that it can be pulled out of the housing 1. Thereby, the cleaning nozzle 30 and the air nozzle 31 such as a relatively complicated portion can be easily cleaned.

  Further, the cleaning cup 33 is configured to move up and down when the first drawer portion T1 is put in and out. In a state where the cleaning cup 33 is mounted inside the liquid medicine dispensing device S, the cleaning cup 33 becomes a part of the annular receiving portion 4. Therefore, the annular receiving part 4 and the washing cup 33 are located at the same level in the vertical direction. Therefore, when the cleaning cup 33 is pulled out of the housing 1, the cleaning cup 30 according to the horizontal movement of the first drawer portion T <b> 1 so that the cleaning nozzle 30 provided in the cleaning cup 33 does not interfere with the annular receiving portion 4. 33 is lowered.

  Therefore, for example, as shown in FIG. 4, the cleaning cup 33 is fixed to a vertically movable base 3 j connected to the first drawer portion T <b> 1 by a parallel link mechanism 3 e. FIG. 4A shows a state in which the first drawer portion T1 is pushed into the housing 1 and the cleaning cup 33 is fixed at a fixed position. FIG. 4B shows a state in which the base 3j is lowered along the cam member 1b during the pull-out operation of the first pull-out portion T1. In FIG. 4A, the roller member 3 k provided at the tip of the base 3 j is on the upper surface of the cam member 1 b provided in the housing 1. In this state, the height of the cleaning cup 33 coincides with the height of the annular receiving portion 4. The cam member 1b can be finely adjusted in the vertical position by adjusting the fixing screw 1c, and the height of the cleaning cup 33 can be accurately aligned with the height of the annular receiving portion 4.

  In addition, a notch 3g that performs horizontal alignment perpendicular to the pushing direction of the base 3j is provided in the rear edge 3f of the base 3j. One housing 1 is provided with positioning pins 1p. Thus, the notch 3g engages with the positioning pin 1p in the process of pushing the first lead-out portion T1 and the base 3j riding on the cam member 1b. Thereby, the position in the left-right direction of the back side edge 3f of the base 3j is determined. As a result, as shown in FIG. 4A, the last rising direction of the cleaning cup 33 is determined, and the cleaning cup 33 is fixed at an appropriate position with respect to the annular receiving portion 4.

  The attachment position of the cleaning cup 33 with respect to the base 3j can be finely adjusted. This is to improve the cleaning effect of each discharge nozzle 22b on average. Each holding portion 21 is attached to the annular support 20 so as to have a predetermined positional relationship. As a result, each discharge nozzle 22 b passes through a certain position with respect to the cleaning cup 33 in principle. However, in actuality, an assembly error or the like of each part such as the holding portion 21 occurs, so that not all the discharge nozzles 22b pass through an accurate position.

  Therefore, the position of the unit of the cleaning cup 33 can be adjusted in each direction in the planar direction with respect to the base 3j, and the unit can be rotated around the axis in the vertical direction. Specifically, the cleaning cup 33 may be fixed to the base 3j with screws 33a, and a screw insertion hole 33b provided in the cleaning cup 33 may have a margin. Although not shown, for example, an adjustment screw that can push and pull the cleaning cup 33 in a direction perpendicular to the movement locus of the dispensing nozzle 22b may be provided in the housing 1.

  As shown in FIG. 2, a second drawer portion T2 is provided below the first drawer portion T1, and stores a wash water tank 38a for storing wash water and dilution water to be added to the patient container V2. A dilution water tank 38b is provided, and a waste liquid tank 38c is provided for collecting and storing the washed water after washing. With such a drawer structure, it becomes easy to replenish water in each tank and clean each tank.

  The capacity of the washing water tank 38a is set according to the number of patient containers V2 to be dispensed and the number of liquid medicines to be dispensed into one patient container V2. According to these numbers, the amount is determined in consideration of the amount of cleaning water sprayed to the dispensing nozzle 22b and the amount of cleaning water sprayed to the cleaning cup 33. The second drawer T2 can be pulled out separately from the first drawer T1 to facilitate refilling and cleaning of each tank.

[Operation mode of the cleaning section]
The cleaning process in the liquid medicine dispensing device S is performed, for example, in the following manner.
The cleaning time may be, for example, every time when each liquid medicine is dispensed, or may be determined according to the number of patient containers V2 that have been dispensed. Further, it may be performed only once before the start of the work or after the end of the work in the day. Further, the cleaning timing may be varied depending on the cleaning site, such as cleaning the dispensing nozzle 22b for each dispensing operation and cleaning the cleaning cup 33 every predetermined time. However, in order to prevent the discharge nozzle 22b and the like from being contaminated as much as possible, the working time is somewhat longer, but it is preferable to wash each time the liquid medicine is dispensed. Such a condition can be arbitrarily set by the user, and can be set by the input unit 13 or the input terminal C2.

  8 and 9 are flowcharts showing the cleaning operation of the liquid medicine dispensing device S. Such a liquid medicine dispensing device S is required to reduce the time required for dispensing. That is, not only the dispensing operation for injecting the liquid medicine into the patient container V2, but also a problem of shortening a series of operation times related to the dispensing operation such as cleaning of the dispensing nozzle 22b. Therefore, in the liquid medicine dispensing device S of the present embodiment, the efficiency of the cleaning work that is performed during the payout work, not the liquid payout work that always requires a predetermined time, is to be improved.

  That is, the liquid preparations to be dispensed are compared for successive prescriptions, and the cleaning work performed between the dispensing operations for the common liquid medicine is omitted. When the dispensing operation is continuously performed for a specific liquid agent, there is no time for the liquid agent to solidify on the inner surface and the tip of the dispensing nozzle 22b, and even when the liquid agent starts to solidify, The solidified portion is eliminated by the flow, and the discharge nozzle 22b is substantially cleaned. Therefore, when such cleaning is frequently performed, cleaning with separate cleaning water is omitted.

  A plurality of prescription contents can be registered in the control unit C1 of the liquid medicine dispensing device S. Here, an example is shown in which the control unit C1 stores two consecutive prescriptions. The prescription issued first is the first prescription, and the next prescription is the second prescription. The control unit C1 includes a dispensing process storage unit C11 that stores a work schedule for dispensing of liquid medication, and a cleaning process storage unit C12 that stores a work schedule for cleaning the dispensing nozzle 22b that has been dispensed. . That is, in principle, the first dispensing and the first cleaning are performed based on the instruction for the first prescription, and then the second dispensing and the second cleaning are performed based on the instruction for the second prescription.

Table 1 shows an initial state of the cleaning processing storage unit C12. The liquid medicine dispensing device S can be equipped with ten chemical liquid containers V1. Here, the separate dispensing process storage unit C11 does not yet store the first dispensing work instruction, and naturally the flags are all 0 in both the first washing and the second washing in the washing process storage unit C12. It is.

When the first prescription is issued, a first dispensing instruction is sent to the dispensing process storage unit C11, and cleaning process information is stored in the second cleaning column of the cleaning process storage unit C12. Incidentally, the issuance of the first prescription means that the data etc. of the chemical container V1 according to the first prescription is inputted from the input unit 13 in front of the liquid medicine dispensing device S or the input terminal C2 provided in another place. Say. For example, when the first prescription is to dispense the liquid medicines No. 1 to No. 3 of the chemical liquid container V1, the chemical liquid container V1 per the second cleaning column in the cleaning processing storage unit C12 as shown in Table 2 The 1st to 3rd flags are set to 1.

Next, when the button for starting the dispensing process according to the first prescription is pressed in the input unit 13 or the input terminal C2, the cleaning process information stored in the second cleaning column is stored in the first cleaning process in the cleaning process storage unit C12. The column is moved to the washing column, and the second washing column is cleared (Table 3). That is, the start of the dispensing process according to the first prescription confirms that the cleaning process is performed after the dispensing process for No. 1 to No. 3 of the chemical solution container V1.

It is assumed that, for example, the second prescription is issued for No. 2, No. 4, No. 6, and No. 6 of the chemical liquid container V1 while the dispensing process related to the first prescription is performed. As a result, the second cleaning column in the cleaning processing storage unit C12 is changed as shown in Table 4. This second cleaning flag is maintained until the first cleaning is completed and the memory related to the first cleaning is reset.

As shown in Table 4, a continuous cleaning process is scheduled for the second chemical container V1. In such a case, in the present embodiment, the cleaning related to the first cleaning is omitted. Even if it does not perform 1st washing | cleaning, the liquid agent distribute | circulates in the dispensing nozzle 22b of the 2nd chemical | medical solution container V1 in the following 2nd dispensing process, and the effect equivalent to washing | cleaning can be anticipated. Therefore, as shown in Table 5, the first cleaning flag is changed to 0 for the second chemical container V1.

The state shown in Table 5 is maintained while the first dispensing is completed and the first and third chemical liquid containers V1 are being cleaned. Thereafter, when the first cleaning is completed and all the operations related to the first prescription are completed, the second dispensing according to the second prescription is started. Along with this, as shown in Table 6, the memory related to the second cleaning so far is moved to the first cleaning column. In the second washing column, all the flags are reset to 0, and the state is maintained until the next third prescription instruction is issued.

Below, the washing | cleaning procedure in the case of wash | cleaning the several discharge nozzle 22b designated in the case of one prescription is shown.
As an actual cleaning process, for example, the first cleaning in Table 5 is started after the first dispensing according to the first prescription is completed. A specific example of cleaning is shown in a flowchart in FIG.

  When the cleaning process is started, first, based on the cleaning process instruction in Table 5, the chemical container V1 that has not been subjected to the dispensing process is excluded from the target of the cleaning process (# 10). When the chemical container V1 to be cleaned is confirmed, the heater 35 is energized and the rapid heating operation is started (# 20). This rapid heating operation is separately shown in FIG.

  As shown in FIG. 9, when the rapid heating operation is started, the control unit C1 turns on the temperature controller power of the heater 35 (# 21). In response to an OK signal indicating that there is no malfunction from the temperature controller (# 22), energization of the temperature controller is maintained for 90 seconds (# 23). This time can be appropriately changed according to the set temperature of the cleaning water or the applied current. After this set time has elapsed, the process proceeds to # 30 in FIG.

  On the other hand, if the OK signal is not received from the temperature controller at # 22, the process waits for 10 minutes (# 24). If the OK signal is not received after that, an error display of “warm water unit heater time-out” is displayed on the front monitor, and further, the red lamp is turned on with the indicator lamp 19 at the upper part of the apparatus.

  When the cleaning operation returns to # 30 of FIG. 8, the end of the cleaning operation is confirmed for the holding portions 21 up to ten. If there is a holding unit 21 for which the cleaning operation has not been completed, it is checked whether or not the chemical container V1 is mounted on the data management for the smallest number (# 40). When the chemical liquid container V1 is mounted, the holding unit 21 that holds the chemical liquid container V1 is moved to the first cleaning position P1, and water cleaning (# 50) using cleaning water is performed.

  When the water cleaning is completed, the cleaning water pump 37 is reversed, and a water draining operation is performed to retreat the water remaining in the cleaning nozzle 30 to at least the position of the sensor 36 (# 60). The reverse rotation time of the washing water pump 37 is, for example, 15 seconds. As a result, the water inside the cleaning nozzle 30 is reliably retracted to the position of the sensor 36. However, this time can be changed by changing the current value applied to the washing water pump 37. In this manner, by removing the cleaning water inside the cleaning nozzle 30, the cleaning water is prevented from being unexpectedly ejected from the cleaning nozzle 30 when the heater 35 is turned on at the next cleaning.

  When the water draining operation is completed, the discharge nozzle 22b is cleaned with air. The control unit C1 moves the holding unit 21 to the second cleaning position P2 to perform air cleaning of the holding unit 21. Here, cleaning air is jetted from the air nozzle 31 toward the blowing port 25a of the air receiving member 25, and the cleaning water remaining in the discharge nozzle 22b is discharged (# 70).

  Thus, the cleaning operation for the holding unit 21 is completed, and the number of the holding unit 21 to be cleaned is incremented (# 80). Thereafter, the process returns to # 30, and the cleaning operation is continued for another holding unit 21.

  In addition, even if the holding unit 21 is designated as a cleaning target in the first cleaning column, there may be a case where the chemical solution container V1 is not mounted in the dispensing process information included in the control unit C1. In this case, it is determined at # 40 that the chemical container V1 is not attached, and the process proceeds to # 90. Here, the corresponding holding part 21 is moved to the payout position P3, and the payout drive part 23 acting on the payout nozzle 22b is actually brought close to the payout nozzle 22b. If the chemical container V <b> 1 is attached, the holding unit 21 should be attached to the annular support 20, and the dispensing drive unit 23 can detect the magnet provided in the holding unit 21. Here, it is confirmed that the chemical liquid container V1 is attached (# 100). If the chemical liquid container V1 is attached, the process proceeds to # 50 water washing. On the other hand, if the mounting of the chemical solution container V1 cannot be confirmed, the process proceeds to # 80, and after the number of the holding part 21 to be cleaned is incremented, the process returns to # 30.

  In this way, the cleaning operation is performed on the last chemical container V1 scheduled to be cleaned, and the cleaning operation related to the first cleaning is completed.

  In order to enhance the cleaning effect, in addition to adjusting the cleaning time, the cleaning time may be adjusted. For example, when dispensing a liquid with a high viscosity, it is preferable to set a long washing time. It is also possible to adjust the temperature of the washing water. It is conceivable that high temperature washing water is jetted after dispensing a liquid with a high viscosity or a liquid that is easy to dry.

  In order to maintain the cleanliness of the liquid medicine dispensing device S, the washing operation is preferably performed as frequently as possible. However, since the dispensing time increases as the number of washings increases, it is necessary to determine the washing time in consideration of dispensing efficiency and the degree of cleanliness. Therefore, in the present embodiment, when dispensing the same liquid agent for two consecutive dispensing operations, the cleaning of the liquid agent discharge nozzle 22b is omitted.

[Other configurations]
(Chemical solution name reading unit)
In the liquid medicine dispensing apparatus S of this embodiment, it is good to provide the reading part 7 which can read the name of the chemical | medical solution described on the surface about the chemical | medical solution container V1 of the state hold | maintained at the holding | maintenance part 21. In the conventional liquid medicine dispensing device S, before the chemical liquid container V1 is attached to the holding unit 21, the chemical liquid container V1 is held over the reading unit 7 provided on the front surface of the apparatus, and the chemical liquid name is read. . However, in this configuration, when a plurality of chemical liquid containers V1 are exchanged, there is a possibility that a chemical liquid container V1 different from the chemical liquid container V1 that has read the chemical liquid name may be mounted.

  In order to prevent such inconvenience, in the liquid medicine dispensing device S of the present embodiment, the relative position changes with respect to the chemical liquid container V1 held in the holding unit 21, and the chemical liquid name written in the chemical liquid container V1 A reading unit 7 for reading symbols and the like relating to the case 1 is provided in the housing 1. For example, as shown in FIG. 1, when the annular support 20 is rotated and each holding portion 21 reaches a specific position, an arm portion 71 that goes around the periphery of the chemical solution container V1 is provided in the housing 1. . The arm 71 is rotated by driving the motor 72 under the control of the controller C1. For example, a barcode reader 7a is attached to the tip of the arm 71, and the barcode on the label V11 attached to the chemical solution container V1 is read. Thereby, the chemical | medical solution with which the said holding | maintenance part 21 is mounted | worn can be recognized reliably.

  When the reading unit 7 is in operation, the container transport unit 2 needs to be stopped, and the dispensing operation may be interrupted during that time. Therefore, the reading time may be set as appropriate so as not to hinder the dispensing operation. Before performing the first dispensing with the chemical solution container V1, it is necessary to perform a reading operation, but before that, for example, it is convenient to perform in a standby state where there is no dispensing operation instruction.

(Addition of dilution water to the patient container and lighting section)
After dispensing a predetermined liquid medicine into the patient container V2, it is necessary to be filled with a predetermined amount of liquid medicine. However, there may be an error in measuring the dispensed liquid. Further, even if the payout operation itself is accurate, if the patient container V2 is blow-molded using, for example, a resin material, the scale provided integrally with the patient container V2 may not be accurate. As a result, the liquid level of the liquid after dispensing may be less than the expected scale, and the user of the apparatus needs to add dilution water to relieve the patient's anxiety. Moreover, from the beginning, it may be planned to add a predetermined amount of diluted water to the patient container V2 for which the dispensing operation has been completed.

  Therefore, a predetermined amount of dilution water can be added to the patient container V2 by operating the dilution water injection button 16 provided on the front surface of the panel 11. By pressing the dilution water injection button 16, as shown in FIG. 2, the motor 51 provided in the first drawer portion T <b> 1 is driven, and the drive screw 52 is rotated so that the dilution water injection nozzle 50 is moved to the patient container. Projects to the V2 side. Thereafter, the dilution water supply pump (not shown) is driven, and the dilution water is injected from the dilution water tank 38b into the patient container V2. When the user confirms that a predetermined amount of dilution water has been injected and releases the dilution water injection button 16, the dilution water supply pump reverses, and the dilution water inside the dilution water injection nozzle 50 is stored in the dilution water tank 38b. Pulled back to the side. Thereby, the dilution water is prevented from dripping from the dilution water injection nozzle 50 thereafter.

  Therefore, as shown in FIGS. 1 and 2, an illumination unit 65 that irradiates light toward the patient container V2 is provided in the patient container holding unit 6 in which the patient container V2 is placed when the liquid medicine is dispensed. . An LED or the like is used as the illuminating unit 65 and is provided at a position where the back surface of the patient container V2 is illuminated. The patient container V2 is often formed of a translucent resin material or the like, and it is easy to visually recognize the water surface height of the filled liquid medicine by illuminating from behind. The LED is turned on when, for example, the door of the placement unit is opened. Thus, by making it easy to confirm the scale of the patient container V2, the accuracy of the liquid dispensing operation can be increased.

(Dispensing time display)
The user rarely stands by in front of the liquid medicine dispensing device S during the dispensing work, and usually performs other work during that time. Therefore, in the liquid medicine dispensing apparatus S, the approximate time of the dispensing work is displayed on the display unit 12 provided on the panel 11. During this time, when the patient container V2 is set on the placement part and the ascending operation of the placement part is finished in order to put it out, each liquid medicine is dispensed and the patient container V2 is placed. This is the time until the placement part finishes descending.

  The time until the dispensing operation is completed includes, for example, the stirring time of the chemical solution container V1, the operation time of the holding unit 21, the dispensing time from each chemical solution container V1, the cleaning time of the dispensing nozzle 22b, and the like. Of these, the dispensing time is set based on the case where the liquid to be dispensed is water. Water has a low viscosity and it is difficult to control the dispensing speed. For other high-viscosity chemical solutions, the chemical solution dispensing speed can be easily adjusted by increasing or decreasing the internal pressure of the chemical solution container V1, and the dispensing time can be shortened by appropriately setting the high-pressure state.

  However, in the case of a low-viscosity liquid such as water, it is difficult to adjust the dispensing volume by pressure control. It will be. Therefore, when the dispensing amount is the same, the water dispensing time is longer than the dispensing time of the high-viscosity chemical solution. Therefore, when calculating the dispensing time, the dispensing time of water is used as a reference in order to obtain the time when the dispensing operation has been completed with certainty. Of course, the dispensing time may be calculated in consideration of the difference in viscosity for each chemical solution.

  Specific display modes for the time until the dispensing work is completed include, for example, a fixed display of the total time required for the work on the display unit 12, a display of the scheduled work end time, Appropriate displays such as a countdown display of the remaining time until the dispensing operation is completed can be performed. A plurality of these times may be displayed together. By displaying such dispensing time, the user can easily adjust the work to be performed in another place, and can reduce the complexity of daily work.

  In addition, the indicator lamp 19 is provided in the top part of the liquid agent dispensing apparatus S as what alert | reports the progress of dispensing work. For example, it is easy to check the completion of dispensing work from a distant position by installing multiple color lamps that display yellow during dispensing work, green when dispensing work is completed, and red when work error occurs. Become.

  The embodiments according to the present invention described above are merely examples and are not restrictive. The technical scope of the present invention is shown not by the above description but by the scope of the claims, and the scope of the claims includes a technique having an equivalent meaning thereto.

  The liquid medicine dispensing device according to the present invention can be widely applied as, for example, an apparatus for automatically dispensing a plurality of types of liquid medicines sequentially into a patient container.

DESCRIPTION OF SYMBOLS 1 Case 13 Input part 2 Container conveyance part 21 Holding | maintenance part 22 Discharge part 22a Discharge flow path 23 Discharge drive part 3 Washing | cleaning part 3a Cleaning flow path 3a1 Branch flow path 3c Air injection part 30 Washing nozzle 33 Washing cup 35 Heater 38a Washing water Tank 4 Annular receiving part C1 Control part P3 Dispensing position S Liquid medicine dispensing device T1 First withdrawal part V1 Chemical solution container V2 Patient container

Claims (11)

A housing,
A holding part for holding a chemical liquid container filled with liquid medicine, and a plurality of dispensing parts provided with a dispensing flow path for discharging the liquid medicine from the chemical liquid container;
A container transport section for moving each of the plurality of dispensing sections to a dispensing position for dispensing the liquid medicine to a patient container and a standby area where the liquid medicine is not dispensed to the patient container;
A dispensing drive unit that opens and closes a part of the dispensing channel of the dispensing unit at the dispensing position to dispense the liquid medicine to the patient container; and
A cleaning water tank for storing cleaning water, a cleaning nozzle for injecting the cleaning water toward the discharge channel, a cleaning channel from the cleaning water tank to the cleaning nozzle, and the cleaning water toward the cleaning nozzle A washing water pump for flowing, and a washing unit for washing the dispensing channel when the dispensing unit is at a washing position in the standby region;
A washing cup that receives the washing water provided at the washing position and used for washing the discharge channel;
An input unit for inputting dispensing processing information including at least the type and amount of the liquid medicine to be dispensed;
A dispensing work flow is determined based on the dispensing process information, and includes a controller that drives the container transport unit, the dispensing drive unit, and the cleaning unit,
A liquid medicine dispensing device provided with a heater for heating the washing water in the washing section.   The liquid medicine dispensing device according to claim 1, wherein the heater is provided in the cleaning channel.   3. The structure according to claim 2, wherein the cleaning water remaining in the cleaning flow path after jetting the cleaning water is returned to the cleaning water tank side from the position of the heater by the cleaning water pump. Liquid medicine dispensing device.   The water according to any one of claims 1 to 3, wherein the dispensing work flow is determined so that the washing water is heated by the heater immediately before the washing water is flowed by the washing water pump. Agent dispensing device.   5. The dispensing work flow is determined such that the flow of the cleaning water by the cleaning water pump is performed after a predetermined time has elapsed after the heater has risen to a preset temperature. The liquid medicine dispensing device according to one item.   The liquid medicine dispensing device according to any one of claims 1 to 5, wherein the washing nozzle is inclined with respect to a vertical direction, and the washing water is jetted obliquely upward.   The communication port connected to the said discharge flow path is provided in the intermediate position of the said discharge flow path, and the air injection part which blows air in the said communication port is provided in the position spaced apart from the said discharge flow path. The liquid medicine dispensing apparatus as described in any one of these.   4. The liquid medicine dispensing device according to claim 2, wherein a branch flow path is provided from the position between the heater and the cleaning nozzle to the cleaning cup in the cleaning flow path.   The liquid medicine dispensing device according to any one of claims 1 to 8, wherein the cleaning cup is provided in a drawer portion that can be pulled out from the housing. Performing a first dispensing to dispense a plurality of the liquid preparations according to the first set into the patient container;
Subsequently, when performing the second dispensing of dispensing the plurality of liquid medications according to the second set to the patient container,
Determination of the dispensing work flow in which washing of the dispensing channel performed prior to the second dispensing is omitted for the liquid medicines included in both the first set and the second set is possible. Item 10. The liquid medicine dispensing device according to any one of Items 1 to 9.   Each of the plurality of payout portions is movable along one annular path, and an annular receiving portion for receiving the liquid agent suspended from the discharge flow path is provided below the annular path. The liquid medicine dispensing device according to any one of 10.

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