JP6827247B2 - Drug feeder and drug dispensing device - Google Patents

Description

The present invention relates to a drug feeder that weighs and takes out a predetermined amount of a drug. The drug feeder of the present invention is suitably used as a device for supplying powder to a powder distribution device that distributes powder. Further, the drug feeder of the present invention is suitable as a device built in a drug dispensing device having a function of distributing powders by the powder dispensing device and further packaging the powders individually.
The present invention also relates to a drug dispensing device having a built-in drug feeder.

In recent years, large hospitals and large-scale and small- and medium-sized pharmacies have introduced drug dispensing devices having a powder packaging function. This type of drug dispensing device incorporates a powder dispensing device and a drug packaging device, and is also called a powder packaging device. The powdered medicine packaging device is a drug dispensing device having a function of individually packaging medicines and the like for each dose, like the device disclosed in Patent Document 1. The present invention also relates to a drug dispensing device having a built-in drug feeder.
By the way, all of the powder packaging devices that have been put into practical use can be said to be semi-automatic devices, and require manual work.
That is, the powder packaging device that has been put into practical use is not automated until the work of weighing a predetermined amount of powder from the medicine bottle and putting it into the hopper or the like of the powder distribution device.
Therefore, even when using a powder packaging device, the pharmacist checks the doctor's prescription, takes out the medicine bottle containing the prescribed powder from the medicine rack, and is prescribed using a scale such as a balance. The total weight of a specific powder is weighed, and the time and effort required to put it into a hopper or the like is required.

Of course, it is desirable to be able to automatically perform the work of weighing out the powder and putting it into the hopper or the like of the powder distribution device, and in the past, a powder packaging device having this function has been proposed (Patent Document 2).
However, the powder packaging device disclosed in Patent Document 2 has not been put into practical use as far as the present inventors know.

Hereinafter, the structure and function of the powder packaging device 200 disclosed in Patent Document 2 will be described. As shown in FIG. 18, the powder packaging device 200 disclosed in Patent Document 2 has a powder storage storage 201 and a split packaging device 202.

The powder storage 201 is a chain or the like in which a large number of drug cassettes 205 are attached to an endless track 203.
The stock portion 206 of the drug cassette 205 has a vertically placed cylindrical shape as shown in FIG. A stirring blade 207 is provided in the stock portion 206.
At the lower part of the front surface of the stock portion 206, there is a lateral cylindrical portion 208 that is a direction along the radial direction thereof. The cylindrical portion 208 has a small diameter. A screw 210 is arranged in the cylindrical portion 208.
The rotating shaft 211 of the screw 210 projects rearward as shown in FIG.

The division packager 202 has two distribution / division devices 221 as shown in FIG. The distribution / division device 221 includes a rotating body 226 having an annular groove 225 having an arcuate cross section.

In the powder packaging device 200 disclosed in Patent Document 2, specific positions in the vicinity of the distribution / division device 221 are defined as supply positions 212a and 212a and b. Then, as shown in FIG. 18, measuring devices 213 are provided at the supply positions 212a and 212, respectively. Further, the measuring device 213 is provided with a vibration feeder 215.
In the powder packaging device 200 disclosed in Patent Document 2, the measuring device 213 moves between the measuring position, the distribution position, and the cleaning position.
A motor 217 is installed at the supply positions 212a and 212a, and a coupling 220 is provided on the output shaft of the motor 217.

In the powder packaging device 200 disclosed in Patent Document 2, the endless orbit 203 of the powder storage 201 is operated to move the drug cassette 205 along the endless orbit 203, and the drug cassette 205 containing the desired powder is incorporated. Is moved to the supply positions 212a and 212a, b.
Then, the coupling 220 of the motor 217 is engaged with the drug cassette 205 that remains connected to the endless track 203, and the screw 210 and the stirring blade 207 are rotated to discharge the drug in the drug cassette 205.

At this time, the measuring device 213 is moved to the measuring position, and the medicine discharged from the medicine cassette 205 is weighed by the measuring device 213. When the predetermined amount of weighing is completed, the motor 217 is stopped. Then, the weighing device 213 is moved to the distribution position, and the vibration feeder 215 is operated to charge the drug into the rotating body 226 of the distribution / division device 221.
That is, the rotating body 226 of the distribution / dividing device 221 is rotated at a constant speed, and the chemicals are gradually charged into the concave groove 225 of the rotating body 226 from the vibration feeder 215.

Japanese Unexamined Patent Publication No. 2000-85703 Japanese Unexamined Patent Publication No. 7-80043

As described above, the powder packaging device 200 disclosed in Patent Document 2 has not been put into practical use as far as the present inventors know. Hereinafter, the problems of the powdered medicine packaging device 200 disclosed in Patent Document 2 will be described.

In the powder packaging device 200 disclosed in Patent Document 2, the rotating shaft 211 of the screw 210 is rotated while the drug cassette 205 is still connected to the endless track 203 to discharge the drug. Therefore, the drug cassette 205 cannot be brought close to the distribution / division device 221, and a separate device for transporting the drug is required.
Therefore, the powder packaging device 200 disclosed in Patent Document 2 has a large number of parts, and it is necessary to secure a space for installing the device to be transported, so that the overall shape is large.

Further, in the powder packaging device 200 disclosed in Patent Document 2, the drug cassette 205 is moved to the supply positions 212a and b and the drug is discharged, and the drug discharge destination is the measuring device 213. Therefore, in the powder packaging device 200 disclosed in Patent Document 2, when the device is viewed in a plan view, a region occupied by the measuring device 213 is required, and the powder packaging device 200 itself has to be large.

Further, in the powder packaging device 200 disclosed in Patent Document 2, the stock portion 206 of the drug cassette 205 has a vertically placed cylindrical shape. Therefore, the screw 210, which is a device for discharging the drug, occupies only a part of the bottom surface of the stock portion 206 as shown in FIG.
According to the description of the specification, as shown in FIG. 20, the bottom of the stock portion 206 of the drug cassette 205 is circular, and the screw 210 is linear. Therefore, it is essential to take a measure to scrape the chemicals accumulated on the bottom surface of the stock portion 206 into the screw 210. Therefore, the drug cassette 205 has a stirring blade 207 built in the stock portion 206. As described above, the drug cassette 205 has a stirring blade 207 and a screw 210 inside, so that it is difficult to clean the drug cassette 205.

Further, in the drug cassette 205 disclosed in Patent Document 2, as shown in FIG. 19, the portion of the screw 210 is shorter than the diameter of the bottom surface of the stock portion 206. Therefore, the amount of the drug discharged from the drug cassette 205 varies.
On the other hand, it is necessary to add the drug to the concave groove 225 of the rotating body 226 of the distribution / dividing device 221 so that the amount of the drug added per unit time is constant. That is, it is necessary to evenly charge the drug into the concave groove 225 of the rotating body 226.
Therefore, the drug cannot be directly charged into the recessed groove 225 of the rotating body 226 from the drug cassette 205 disclosed in Patent Document 2. Therefore, in the powder packaging device 200 disclosed in Patent Document 2, a vibration feeder 215 is interposed between the drug cassette 205 and the distribution / division device 221 so that the input amount per unit time is constant by the vibration feeder 215. It is configured.

Further, in the drug cassette 205 disclosed in Patent Document 2, the rotating shaft 211 of the screw 210 protrudes from the rear end portion. Then, the coupling 220 provided on the output shaft of the motor 217 is advanced, and the coupling 220 is engaged with the rotating shaft 211 to rotate the screw 210. In this way, the drug cassette 205 disclosed in Patent Document 2 mechanically engages the coupling 220 to transmit power, so that slag and dust due to friction and wear are generated. Further, the position where the slag and dust are generated is a position close to the rotating body 226 of the distribution / division device 221. On the other hand, the concave groove 225 of the rotating body 226 is a groove that is always open. Therefore, there is a concern that slag and dust due to friction and abrasion may be mixed in the concave groove 225.
The powder packaging device 200 described in Patent Document 2 has many problems and has not been put into practical use.

An object of the present invention is to develop a new drug feeder capable of automatically weighing a predetermined amount of powder from a drug bottle, and to propose a more practical drug feeder. is there.
The present invention also proposes a more practical drug dispensing device.

One aspect of the present invention developed to solve the above-mentioned problems is to provide a drug container composed of a drug container containing powdered drug, a drug feeder composed of a main body side device, and a plurality of the drug containers. A drug container storage shelf for storage, a distribution plate located below the drug container storage shelf to receive powder discharged from the drug container, and a drug container movement for moving the drug container from the drug container storage shelf to the main body side device. The drug container includes a device, and the drug container has a drug storage section for accommodating powder and a drug discharge section for discharging powder. The drug container is removable from the main body side device and is detachable from the main body side device. Has a weight measuring means for directly or indirectly measuring the weight of the drug container, the drug feeder has a plurality of main body side devices, and the plurality of main body side devices are fixed in the vicinity of the distribution pan, and the drug is used. With the container moving device, it is possible to place any one of the plurality of drug containers stored in the drug container storage shelf that has been separated from the main body side device on any of the plurality of main body side devices. It is a drug dispensing device capable of discharging powder from a drug discharging unit and detecting the amount of powder discharged based on a decrease value of a detection value of a weight measuring means.
In a preferred embodiment, the drug container moving device is a drug dispensing device capable of moving the drug container in the up-down elevating direction and the horizontal direction.
Further, in a preferred embodiment, the drug container is a drug dispensing device that directly discharges powder from the drug discharging unit to the distribution dish.
Further, in a preferred embodiment, the drug container moving device is arranged in the vicinity of the drug container storage shelf.
It is a drug dispensing device capable of placing the drug container, which has been separated from the drug container storage shelf and the main body side device, on the main body side device by the drug container moving device.
Further, in a preferred embodiment, when the drug container is moved, the drug container is selected from a plurality of the drug containers arranged on the drug container storage shelf, and the selected drug container is used by using the drug container moving device. It is a drug dispensing device that moves the container.
Further, a preferred embodiment further includes an input means for inputting the type and prescription amount of the powder to be dispensed, and a storage means for storing the type and remaining amount of the powder stored in the drug container storage shelf.
An operation of selecting the drug container containing the powder input to the input means, placing the drug container on the main body side device by the drug container moving device, and discharging the prescribed amount of powder input to the input means. When the remaining amount of powdered medicine to be prescribed to be stored in the drug container storage shelf is insufficient with respect to the prescribed amount, the drug is dispensed having a notification means for which a predetermined notification is given prior to the discharge operation. It is a device.
Further, in a preferred embodiment, the notification means is a drug dispensing device which is a display device for displaying that the remaining amount of the powder is insufficient with respect to the prescribed amount. ..
Further, in a preferred embodiment, a vibration feeder is further provided between the drug feeder and the distribution dish, and the drug feeder once supplies the powder to the vibration feeder, and the drug dispenser supplies the powder to the distribution dish from the vibration feeder. It is a device.
Further, a preferred embodiment further comprises a drug packaging device for packaging the powder, the drug feeder repeatedly running and stopping to discharge the powder in doses, and the drug packaging device packaging the powder in doses. It is a drug dispensing device that can be used.
Further, in a preferred embodiment, the drug feeder is a drug dispensing device that repeats an operation of discharging powdered drug one by one a predetermined number of times.
Another aspect of the present invention developed to solve the above problems is a drug feeder composed of a drug container and a main body side device, wherein the drug container includes a drug container for accommodating a drug and a drug container. It has a drug discharging unit for discharging a drug and a drug moving member, and the drug moving member is partially or wholly located in a drug accommodating portion or a portion communicating with the drug accommodating portion, and the drug container is a main body side device. The main body side device has a weight measuring means for directly or indirectly measuring the weight of the drug container, and the drug container that has been separated from the main body side device is used as the main body side device. It is possible to place the drug and move the drug in the drug container to the drug discharge section by operating the drug transfer member, discharge the drug from the drug discharge section, and detect the discharge amount of the drug by the weight measuring means. It is a drug feeder characterized by being present.

In the drug feeder of this embodiment , a part or all of the drug transfer member is located in the drug accommodating portion or a portion communicating with the drug accommodating portion.
Therefore, by driving the drug moving member, the drug in the drug container can be discharged from the drug discharging unit.
Further, the drug feeder of the related invention has a weight measuring means for directly or indirectly measuring the weight of the drug container. Then, the drug container that has been detached from the main body side device can be placed on the main body side device, the drug can be discharged from the drug discharge unit, and the discharge amount of the drug can be detected by the weight measuring means.
That is, since the drug cassette 205 disclosed in Patent Document 2 described above is for discharging the drug by rotating the screw 210 while being connected to the endless track 203, a considerable portion of the weight of the drug container is It was hanging on the endless orbit 203. Therefore, in the drug cassette 205 disclosed in Patent Document 2, the weight change of the drug container and the discharge amount of the drug do not match. Therefore, in Patent Document 2, it is necessary to measure the weight of the drug discharged from the drug cassette 205 with a separate device.
On the other hand, in the related invention , since the drug container that has been separated from the main body side device is placed on the main body side device and the weight of the drug container is detected, the weight is not applied to other parts and the drug is not applied. The total weight of the drug remaining in the container and inside can be accurately measured. Therefore, a separate weighing device 213 is not required, and the area occupied by the weighing device 213 is unnecessary. Therefore, by adopting the drug feeder of the related invention , it is possible to reduce the overall shape of the outer shape of the drug dispensing device.

In the above-mentioned related invention , the main body side device has a drive source and has a power conduction member that conducts power in a non-contact manner, and the drug moving member receives power transmission from the drive source via the power conduction member and houses the drug. It is preferable to operate in the unit .

The drug feeder of this preferred embodiment is power-conducted from the drive source in a non-contact manner. Therefore, no slag or dust is generated due to friction or wear, and there is little chance of foreign matter being mixed into the chemical.

In the related invention described above , the main body side device has a drive source and a drive side member that moves by receiving power conduction from the drive source, and the drug container transmits power to the drug moving member to operate the drug container side. There is a passive member, the receiving member may be in covered position by the partition wall of the medicament container and the driving-side member is a non-contact, it is preferable that movement of the drive-side member is conducted to the driven side member by a magnetic force ..

The drug feeder of this preferred embodiment is powered by magnetic force. Therefore, no slag or dust is generated due to friction or wear, and there is little chance of foreign matter being mixed into the chemical.
Further , in this preferred embodiment of the drug feeder, the passive member is in a position covered by the partition wall of the drug container. The slag generated from the bearings of the passive side members does not scatter to the outside, and there is little chance of foreign matter being mixed into the chemicals.

In the drug feeder of the preferred embodiment described above , it is more preferable that the passive member is outside the drug accommodating portion and the partition wall is removable from the drug accommodating portion .

According to this more preferred embodiment , the partition wall covering the passive member can be removed. Therefore, it is possible to clean the slag or the like generated from the bearing or the like of the passive side member. It is also possible to clean and remove the chemical that has entered the passive side member side for some reason.

In the related invention described above, it is preferable that the drug moving member has a spiral structure portion, and the spiral structure portion is rotated to move the drug in the drug accommodating portion .

The drug feeder of this preferred embodiment has a spiral structure in the drug transfer member. By rotating the spiral structure portion, the drug can be involved, or by pushing, the drug in the drug storage section can be moved, and the drug in the drug container can be discharged from the drug discharge section.

In this preferred embodiment , the drug container is tubular and has a drug inlet on its end face, the drug container is placed horizontally on the main body side device, and the drug moving member is placed on the main body side device. It is more preferably located on the bottom surface side of the drug container with respect to the posture, and the spiral structure portion has a length of 80% to 120% of the length of the bottom surface of the drug storage portion .

The drug cassette 205 disclosed in Patent Document 2 described above has a cylindrical shape and is installed in a vertical position. On the other hand, the drug feeder of this embodiment is placed on the main body side device with the drug container placed horizontally.
Therefore, the difference between the occupied area of the drug moving member and the bottom surface of the drug container is small based on the posture placed on the main body side device. As a result, the drug feeder of this embodiment does not necessarily need a mechanism for collecting the bottom drug (stirring blade 207 of Patent Document 2).
Further, in this embodiment , since the length of the spiral structure portion is long, there are many opportunities for the drug to be introduced into the spiral, and the drug is densely inserted into the spiral to reduce the gap. Therefore, the amount of the drug discharged during one rotation of the spiral member is stable. That is, the amount of the drug discharged per unit time is made uniform.

It is recommended that the drug transfer member has blades or grooves spirally provided around the axis of rotation .

More preferably , a plurality of blades or grooves are provided .

According to the experiments by the present inventors, the provision of a plurality of blades or grooves stabilizes the amount of the drug discharged during one rotation of the spiral member. That is, the amount of the drug discharged per unit time is made uniform.

More preferably, it is that there is a missing portion on the wall surface of the blade or the groove.

A more preferred embodiment of this is a missing portion on the wall surface of the blade or groove. Therefore, in the process of pushing out the drug, a part of the drug enters the missing part and receives shearing force. Therefore, the drug does not easily become lumpy.

The related invention described above has a moving member storage chamber that communicates with the inside of the drug accommodating portion and accommodates the drug moving member. It is preferable that there is an opening / closing portion at the end of the moving member storage chamber, and the opening / closing portion can be opened to pull out the drug moving member from the moving member storage chamber .

In this preferred embodiment , the drug moving member can be removed from the moving member storage chamber. Therefore, cleaning of the drug moving member is easy.

In the related invention described above , the drug container has a main accommodating portion having a large cross-sectional area, the drug discharging portion is located on the tip side of the drug container, the cross-sectional area near the drug discharging portion is smaller than that of the main accommodating portion, and the drug moving member. Has a spiral structure portion, the spiral structure portion is provided at a position straddling the vicinity of the drug discharge portion from the main accommodating portion, and the diameter of the spiral structure portion on the drug discharge side is the diameter of the spiral structure portion on the main accommodating portion side. Is preferably smaller than .

According to this preferred embodiment , the drug in the drug container can be discharged from the drug discharge section while being stirred.
That is , in the drug feeder of this preferred embodiment , the drug moving member has a spiral structure portion. Here, the diameter of the spiral structure portion adopted in this embodiment differs depending on the site, the diameter on the drug accommodating portion side is large, and the diameter of the spiral structure portion on the drug discharge side is small. Therefore, the spiral structure portion on the drug accommodating portion side stirs the drug in the drug accommodating portion, and prevents the drug from becoming agglomerates.

Agent moving member has a helical structure, the diameter of the spiral structure, it is desirable that smaller soon take the medicine accommodating portion side toward its drug efflux side.

In the related invention described above , the drug container has a tubular shape, the drug discharge section is located at the tip of the drug container, and the drug container is placed on the main body side device in an inclined posture so that the drug discharge section faces downward. Is preferable.

In this preferred embodiment , the drug container is placed on the main body side device in an inclined posture so that the drug discharge portion is downward. Therefore, even when the remaining amount of the drug in the drug accommodating portion becomes low, the drug can be smoothly discharged.

In the above-mentioned related invention , the original weight of the drug container before discharging the drug is measured by the weight measuring means, and when the drug moving member is operated to discharge the drug from the drug discharging unit, the weight measuring means is used. A weighing function that monitors the weight of the drug container and stops the operation of the drug moving member when the current weight, which is the current weight of the drug container, matches or substantially matches the value obtained by subtracting the target discharge amount from the original weight. It is preferable that the container is provided .

As for the means for measuring the weight of the drug container, the measurement of the weight of the drug container may be direct or indirect. That is, only the weight of the drug container may be directly connected, or the weight including the weight of any member of the main body side device may be measured.
In this preferred embodiment , the original weight of the drug container before the drug was discharged and the current weight of the drug container were utilized, and the current weight matched the original weight minus the target discharge. At that time, the drug moving member is stopped. Alternatively, in consideration of the weight of the drug in the middle of discharge, the drug moving member is stopped when the current weight is slightly larger than the value obtained by subtracting the target discharge amount from the original weight and substantially matches. Therefore, after the target amount of the drug is discharged, the drug moving member is stopped and the drug discharge is stopped.

In the related invention described above , it is preferable that the drug moving member can repeatedly operate and stop, and can discharge the drug in doses .

In this preferred embodiment, the drug dispensing device can be omitted because the drug is discharged one dose at a time.
That is, in the prior art, the drug is supplied from the drug feeder to the powder distribution device, and the powder is divided into individual doses by the powder distribution device. Then, the further divided powder is supplied to the drug packaging device and individually packaged.
On the other hand, in the drug feeder of this preferred embodiment, since the drug can be discharged one by one, the drug can be directly supplied to the drug packaging device and packaged individually without passing through the powder dispensing device.

Above related invention, the medicament container state, and are detachably attached to the main device, that a drug container that was in a state of being detached from the main body unit can be mounted on the main device preferable.
Another aspect of the related invention is a container storage unit for storing a plurality of drug containers, the above-mentioned drug feeder, and a container moving means for taking out a predetermined drug container from the container storage unit and placing it on a device on the main body side of the drug feeder. In addition, it has an input means for inputting the type and prescription amount of the drug to be dispensed, and a storage means for storing the type and remaining amount of the drug stored in the container storage unit, and the drug input to the input means Select the drug container to be stored, place it on the main body side device by the container moving means, rotate the spiral structure part, execute the dispensing operation to discharge the prescribed amount of drug input to the input means, and store the container. The drug dispensing device is characterized in that when the remaining amount of the drug to be prescribed stored in the container is insufficient with respect to the prescribed amount, a predetermined notification is given prior to the dispensing operation.

The drug dispensing device of this embodiment includes a container moving means for taking out a predetermined drug container from the container storage unit and placing it on the main body side device of the drug feeder. Therefore, the process of selecting a drug container and placing it on the drug feeder is also automated.
Further, the drug dispensing device of this embodiment has a function of managing the inventory of drugs. Further, when the remaining amount of the drug to be prescribed stored in the container storage unit is insufficient with respect to the prescribed amount, a predetermined notification is given prior to the dispensing operation, and the user can be notified of the fact. ..

Another aspect of the related invention includes a powder distribution device for distributing powder, a shaking table, and the above-mentioned drug feeder, and a shaking table is provided between the drug feeder and the powder distributor, and once from the drug feeder. It is a drug dispensing device characterized in that a drug is supplied to a shaking table and the drug is supplied from the shaking table to a powder distribution device.

The drug dispensing device of this embodiment includes, for example, a powder dispensing device as described in the prior art. Therefore, the action of improving the work efficiency of the powder dispensing device and the action of the drug feeder described above can be combined to achieve a high level of automation, and the powder can be packaged with high efficiency.
Further, in the drug dispensing device of this embodiment , a shaking table is provided between the drug feeder and the powder dispensing device, the drug feeder temporarily supplies the drug to the shaking table, and the shaking table supplies the drug to the powder dispensing device. Therefore, the variation in the input amount per unit time becomes smaller, and the drug can be uniformly added to the powder distribution device.

Another aspect of the related invention includes a drug packaging device for packaging a drug and the drug feeder described above, and the drug feeder repeatedly starts and stops to discharge the drug in doses, and the drug is discharged by the drug packaging device. It is a drug dispensing device characterized in that it can be packaged for each dose.

According to this aspect , the powder distribution device, which has been indispensable in the past, can be omitted.
In the drug dispensing device of this embodiment, it is more preferable that the drug feeder repeats the operation of discharging the drug for each dose a predetermined number of times.

The drug moving member may have a rotating member and move the drug in the drug accommodating portion to the drug discharging portion side by a rotational force.

The drug moving member may have a vibrating member and may vibrate the drug in the drug accommodating portion to move the drug to the drug discharging portion side.

The drug moving member may have a member that moves in the front-rear direction, and may apply a force to the drug in the drug accommodating portion to move the drug to the drug discharging portion side.

The drug moving member may have a member that moves in a wave motion, and may move the drug in the drug accommodating portion to the drug discharging portion side on the wave.

The drug moving member may have a member that blows air, and may move the drug in the drug accommodating portion to the drug discharging portion side by blowing air.

The drug feeder of the present invention is practical because there are few accessory devices required when it is used in a high-priced drug dispensing device or the like. Further, the drug feeder of the present invention can suppress the overall shape of the device to a practical size when it is used in a high-priced drug dispensing device or the like.

It is a perspective view which observed the drug feeder of the embodiment of this invention from the drug discharge part side (front side). It is a perspective perspective view which observed the inside of the drug feeder of the embodiment of this invention from the drug discharge part side (front side). FIG. 1 is a cross-sectional view taken along the line AA of the drug feeder of FIG. 1 and an enlarged view in a circle thereof. It is sectional drawing in the BB direction of the drug feeder of FIG. It is a perspective view which observed the drug feeder of FIG. 1 from the drug discharge part side (front side), and shows the state which the drug container was removed from the main body side device. It is a perspective view which observed the drug feeder of FIG. 1 from the drive part (rear side), and shows the state which the drug container was removed from the main body side device. It is an exploded perspective view of the drug container of the drug feeder of FIG. (A) is a perspective view of a screw inserted in a drug container, and (b) is a solid line for Article 1 of the screw and a two-dot chain line for the other two. In c), the second article of the screw is described by a solid line and the other two articles are described by a two-dot chain line, and in (d), the third article of the screw is described by a solid line and the other two articles are described by two. It is described by a dotted line. It is an exploded perspective view of the main body side device of the drug feeder of FIG. It is the schematic of the drug dispensing apparatus of embodiment of this invention. It is a perspective view of the vicinity of the drug distribution device of the drug dispensing device of FIG. It is a perspective view of the drug feeder of another embodiment of this invention. It is a perspective perspective view which observed the inside of the drug feeder of FIG. It is sectional drawing of the drug feeder of the drug dispensing device in another embodiment of the present invention, and the vicinity thereof. It is sectional drawing of the drug feeder of the drug dispensing device in still another embodiment of the present invention, and the vicinity thereof. It is sectional drawing of the drug feeder of the drug dispensing device in still another embodiment of the present invention, and the vicinity thereof. It is an exploded perspective view of the drug feeder of still another embodiment of this invention. It is a top view of the powder medicine distributor disclosed in FIG. 2 of Patent Document 2. It is sectional drawing of the drug feeder disclosed in FIG. 1 of Patent Document 2. It is a reference perspective view which rewrote the drug feeder of FIG. 19 into a three-dimensional drawing based on the description of Patent Document 2.

The drug feeder 1 of the present embodiment, which further describes the embodiment of the present invention, constitutes a part of the powder dispensing device or the drug dispensing device 100 having the powder packaging function as shown in FIG. 11, for example. ..
The drug feeder 1 of the present embodiment is composed of a drug container 2 and a main body side device 3 as shown in FIGS. 1 and 6. The drug container 2 and the main body side device 3 are completely independent parts as shown in FIG. 6, and there is no member for mechanically fastening the two.

The drug container 2 is further composed of a container assembly 5 and a lower cover 6 as shown in FIGS. 5 and 8. Hereinafter, the description will be given sequentially.
Although the drug container 2 has an elongated shape, it is used in a state of being laid on its side as shown in FIGS. 1 to 4.
Therefore, regarding the description of the drug container 2, the description in the vertical direction will be described with reference to the posture in which the drug container 2 is laid sideways as shown in FIGS. 1 to 4.

As shown in FIG. 7, the container assembly 5 is composed of a container body 8, a lid member 10, a discharge port forming member 11, a spiral member 12, and a passive member 13.
The container body 8 is a horizontally long case made of resin, and is a tubular body having two open surfaces 15a and 15b on one end side.
That is, the container body 8 is a tubular container in which the other surfaces except the open surfaces 15a and 15b are closed and powder can be put inside.
Of the two open surfaces 15a and 15b, the larger open surface 15a is the drug inlet.
The smaller open surface 15b is a drug discharge port. The larger open surface 15a is referred to as a drug inlet 15a, and the smaller open surface 15b is referred to as a drug discharge port 15b. The drug discharge port 15b has a cylindrical shape.

As shown in FIG. 4, the cross-sectional shape of the intermediate portion of the container body 8 is substantially pentagonal, and is inclined so that the bottom surface side is narrowed with reference to the posture at the time of use.
The central portion of the container body 8 corresponding to the bottom has a semi-cylindrical shape. That is, at the bottom of the container body 8, there is a semi-cylindrical portion 16 extending in the longitudinal direction.
Therefore, the inside of the container body 8 is divided into a large-volume main accommodating portion 7 and a lower semi-cylindrical shaped portion 16. There is no partition between the main accommodating portion 7 and the semi-cylindrical shaped portion 16, and they communicate with each other to form one drug accommodating portion 52.
The semi-cylindrical shape portion 16 communicates with the above-mentioned cylindrical drug discharge port 15b.

Looking at the appearance of the container body 8, as shown in FIG. 3, the back surface 14 is an inclined surface 18 and has a shape in which the lower side is largely missing in the oblique direction. However, the portion of the back surface 14 connected to the semi-cylindrical shaped portion 16 is a vertical wall 17 as shown in FIG. The inclined surface 18 and the vertical wall 17 are connected by a horizontal wall 19. Therefore, on the outside of the container body 8 and in the vicinity of the back surface 14, there is a defective portion 21 surrounded by the inclined surface 18, the horizontal wall 19, and the vertical wall 17.
The defective portion 21 is a portion constituting the passive member accommodating space 22 described later, and the vertical wall 17 is provided with a shaft insertion hole 23 as shown in FIG.

A magnetic plate 25 is provided on the bottom of the container body 8 as shown in FIGS. 3 and 7. The magnetic material plate 25 is a plate containing a magnetic material such as iron or nickel as a main component, and in the present embodiment, is a steel plate containing ferrite.

The lid member 10 closes the drug inlet 15a of the container body 8. The lid member 10 has an engaging portion (not shown), which is removable from the drug inlet 15a of the container body 8.

The discharge port forming member (opening / closing portion) 11 is a member that closes the drug discharge port 15b of the container body 8. The discharge port forming member 11 is vertically provided with a plurality of slit-shaped drug discharge portions 24 for discharging powder. The discharge port forming member 11 has an engaging portion (not shown) and is removable from the container body 8. The discharge port forming member 11 functions as an opening / closing portion, and the drug discharge port 15b can be opened at the time of cleaning.

The spiral member 12 is a screw, and blades 27a, 27b, and 27c are provided around the rotating shaft 26.
That is, the spiral member 12 is a screw having three blades 27a, 27b, 27c.
As shown in FIG. 8, the three blades 27a, 27b, 27c are provided so that the blade belonging to one system (for example, blade 27a) is sandwiched between the blades 27 belonging to the other two systems (for example, blades 27b, 27c). ing.
Further, the blades 27a, 27b, 27c of each system are provided with missing portions 28 at regular intervals.
The length of the portion where the blade 27 is provided is the same as the length of the bottom surface of the container body 8.
Comparing the distance between the blades 27 on the front end side and the blade 27 on the rear end side with reference to the direction in which the powder is pushed out, the distance between the blades 27 on the rear end side is wider than that on the front end side.
In the present embodiment, the outer diameter of the blade 27 is the same for all parts.

The tip of the rotating shaft 26 projects from the tip of the spiral member 12. An engaging portion 30 is provided at the rear end of the spiral member 12. As will be described later, the engaging portion 30 engages with the support shaft 31a of the passive member 13 and has a concave hole (not shown) that matches the cross-sectional shape of the support shaft 31a.

The spiral member 12 is inserted into the semi-cylindrical portion 16 of the container body 8. Then, the engaging portion 30 projects to the outside of the container body 8 from the shaft insertion hole 23 provided in the vertical wall 17 on the back side of the container body 8. Further, on the tip end side of the spiral member 12, the tip end portion of the rotating shaft 26 is supported by a recess (not shown) provided on the inner surface of the discharge port forming member 11.
Therefore, in the spiral member 12, the tip end portion of the rotary shaft 26 on the front end side is supported by the inner surface of the discharge port forming member 11, and the rear end side of the spiral member 12 is supported by the through hole 23 provided in the back wall 14. , Is rotatable within the semi-cylindrical shaped portion 16.

The passive member 13 is a cylindrical magnet, and support shafts 31a and 31b project from both ends of the main body 40. The passive member 13 constitutes one power conducting member in combination with the driving side member 63 described later, and can receive power conduction from the driving side member 63 in a non-contact manner.
The passive member 13 is rotatably attached to the defect portion 21 outside the container body 8 of the container body 8 and surrounded by the inclined surface 18, the horizontal wall 19 and the vertical wall 17 by the support member 32.
That is, the support member 32 is formed by bending a metal plate into a "U" shape, and has a front wall 35, a top wall 36, and a rear wall 37. Further, through holes 38a and 38b are provided in the front wall 35 and the rear wall 37.

In the passive member 13, the main body 40 is inserted into a space surrounded by the front wall 35 and the rear wall 37 of the support member 32, and the support shafts 31a and b of the passive member 13 are inserted into the through holes 38a and b. Then, in this state, the top wall 36 of the support member 32 is fixed to the container body 8 by a member (not shown), and the passive member 13 is rotatably attached to the defective portion 21.
Then, the support shaft 31a of the passive member 13 is engaged with the engaging portion 30 of the spiral member 12 projecting from the back wall 14 of the semi-cylindrical shaped portion 16 of the container body 8.
Therefore, the passive member 13 rotates integrally with the spiral member 12, and when the passive member 13 rotates outside the container body 8, the spiral member 12 arranged in the container body 8 rotates.

As shown in FIG. 7, the lower cover 6 is a member that covers the entire lower surface 45 of the container body 8, a part of the side surface 46, and the defective portion 21. As shown in FIG. 7, the lower cover 6 is a member having a bottom wall 47, inclined side walls 48a and b, and a back wall 50.
Here, the portion excluding the rear ends of the inclined side walls 48a and b and the bottom wall 47 have a shape that substantially matches the outer wall of the container body 8. On the other hand, the back wall 50 of the lower cover 6 is in a substantially vertical posture and does not match the outer shape of the container body 8. Further, the rear end sides of the inclined side walls 48a and 48b have a height extending to the total height of the container body 8 and have a surface surrounding the defective portion 21 of the container body 8.
Further, the bottom wall 47 of the lower cover 6 is provided with an opening 51.

The lower cover 6 is attached to the lower surface 45 of the container body 8 by a screw (not shown). When the lower cover 6 is attached to the container body 8, a passive member accommodating space 22 is formed between the back wall 50 of the lower cover 6 and the outer wall of the container body 8. That is, the lower cover 6 has a surface that completely surrounds the defective portion 21 of the container main body 8, and the defective portion 21 of the container main body 8 becomes a passive member accommodating space 22 that is shielded from the outside. As described above, since the passive member 13 is provided in the defective portion 21 of the container body 8, the lower cover 6 surrounds the passive member 13 and shields the passive member 13.
Further, when the lower cover 6 is attached to the container body 8, the magnetic plate 25 provided on the lower surface 45 of the container body 8 is exposed from the opening 51 of the lower cover 6 as shown in FIGS. 3 and 7.

As described above, the lid member 10 closes the portion corresponding to the main accommodating portion 7 of the container body 8, and is removable from the container body 8.
In the present embodiment, the lid member 10 of the container body 8 is removed to open the drug inlet 15a of the main container 7, and the powder is stored inside the container body 8. Further, inside the container main body 8, the main accommodating portion 7 and the semi-cylindrical shaped portion 16 communicate with each other, and both form one drug accommodating portion 52.

Next, the main body side device 3 will be described.
As shown in FIG. 9, the main body side device 3 is composed of a mounting table 60, a weight measuring means 61, and a foundation member 64 from above.
Hereinafter, the description will be given sequentially.
The mounting table 60 is a table on which the drug container 2 is placed, and its surface has a shape that matches the shape of the lower cover 6 of the drug container 2. That is, the surface of the mounting table 60 has a mounting top surface 70 that abuts on the bottom of the lower cover 6 and mounting inclined side surfaces 71a and b that match the inclined side walls 48a and b of the lower cover 6. Further, it has an upright surface 72 that comes into contact with the back wall 50 of the lower cover 6.

Inside the mounting table 60, an electromagnet 62 and a drive side member 63 are provided. A motor 65 is attached to the mounting table 60. The motor 65 functions as a drive source.
That is, the mounting top surface 70 of the mounting table 60 is provided with a magnet mounting hole 66, and the electromagnet 62 is built in the magnet mounting hole 66.

Further, a drive member accommodating portion 75 is provided at a position aligned with the magnet mounting hole 66, and the drive side member 63 is built in the drive member accommodating portion 75. The drive member accommodating portion 75 is a cavity provided below the mounting top surface 70, and the drive side member 63 is built in the drive member accommodating portion 75 and is not exposed to the mounting top surface 70. The reason why the drive side member 63 is not exposed is to prevent the powder existing in the atmosphere from adhering to or biting into the drive side member 63, which is a recommended configuration, but to prevent the powder from adhering. The drive side member 63 may be exposed from the mounting top surface 70 as long as effective measures can be taken.
The drive side member 63 is a cylindrical magnet.
The motor 65 is an ordinary small DC motor, and is mounted under the mounting table 60 with the output shaft 76 directly connected to the drive side member 63 as shown in FIG. 4, and a part of the motor 65 is It is exposed from the mounting table 60 as shown in FIGS. 1, 2, and 3.
When the motor 65 is rotated, the drive side member 63 rotates in the drive member accommodating portion 75.

The weight measuring means 61 is a known load cell, has an upper installation surface 78 and a lower installation surface 80, and both are at offset positions.

The foundation member 64 is a base having a "U" -shaped portion 81 and flange portions 82a and 82b. The foundation member 64 is merely a jig for attaching the main body side device 3 of the drug feeder 1 to other members, and the shape of the embodiment has no particular meaning.

In the main body side device 3 of the present embodiment, the weight measuring means 61 is arranged below the mounting table 60, and the foundation member 64 is further arranged below the weight measuring means 61.
In the weight measuring means 61, the upper installation surface 78 is connected to the lower surface of the mounting table 60, and the lower installation surface 80 of the weight measuring means 61 is attached to the foundation member 64.
As described above, since the upper installation surface 78 and the lower installation surface 80 are at offset positions, the intermediate portion of the weight measuring means 61 has a structure that is cantilevered with respect to the foundation member 64. The mounting table 60 is supported on the free end side.
In the present embodiment, there is no member other than the above-mentioned weight measuring means 61 that connects between the mounting table 60 and the foundation member 64. Therefore, the mounting table 60 has a structure that is hollowly supported from the foundation member 64 by the weight measuring means 61.

Therefore, in the present embodiment, when the drug container 2 is placed on the mounting table 60, the weight of the drug container 2 is indirectly measured. That is, the weights of the mounting table 60 and the drug container 2 are detected by the weight measuring means 61, and the weight of the drug container 2 is measured by subtracting the weight of the known mounting table 60.

The drug feeder 1 of the present embodiment is composed of the drug container 2 and the main body side device 3 as described above, but usually both are separate, and when the powdered drug is packaged, both are used. Combined to form drug feeder 1.
That is, the main body side device 3 of the drug feeder 1 is fixed in the vicinity of the distribution dish 112 of the drug dispensing device 100 as shown in FIGS. 11 and 12.
On the other hand, the drug container 2 is placed and stored on the drug container storage shelf 101 as shown in FIG. That is, the drug container 2 is filled with a predetermined powder, and is placed on the drug container storage shelf 101 in a horizontal posture as shown in FIG. 11, for example.

Next, the peripheral device of the drug feeder 1 will be described.
The drug feeder 1 of the present embodiment constitutes a part of the drug dispensing device 100 having a powdered drug packaging function.
The overall structure of the drug dispensing device 100 is, for example, as shown in FIG. The drug dispensing device 100 is functionally divided into a drug shelf region 103, a drug dividing area 105, and a drug packaging area 106 in the vertical direction.
A drug container storage shelf 101 is arranged around the uppermost drug shelf region 103, and a drug container moving device 102 is provided inside the drug container storage shelf 101.

The drug container moving device 102 is a robot and has a vertical elevating shaft 107, a horizontal moving arm 108, and a hand portion 110 for holding the drug container 2.

A powder distribution device 111 is provided in the drug division region 105. In the present embodiment, the powder distribution device 111 has two distribution plates 112. A plurality of drug feeders 1 of the present embodiment are installed in the powder distribution device 111. In the present embodiment, three drug feeders 1 are installed in each distribution dish 112.
Further, the drug packaging device 120 is built in the drug packaging area 106.
Further, the drug dispensing device 100 includes a prescription reading means 121 for reading a prescription and a control device 122 for controlling the operation of each device.
The control device 122 stores data for managing the type and amount of the drug stored in the drug dispensing device 100. That is, the drug dispensing device 100 has data indicating what kind of drug is contained in which drug container 2 in what amount and in what amount for all the drug containers 2. The data is rewritten every moment, and it is always managed what kind of drug is currently contained and in what amount.
Further, the drug dispensing device 100 is provided with a display device 123.
A predetermined display is made on the display device 123 when the necessary chemicals are insufficient or when an abnormality occurs in the device.

Next, the function of the drug feeder 1 of the present embodiment will be described. Since the drug feeder 1 constitutes a part of the drug dispensing device 100, the operation of the drug feeder 1 will be described including the operation of the entire powder dispensing device.
In the present embodiment, all operations are started by reading the contents of the prescription by the prescription reading means 121 of the drug dispensing device 100.
That is, as soon as the contents of the prescription are input, the work of carrying out the drug container 2 is started. More specifically, the drug container moving device 102 is driven, and the drug container 2 containing the drug matching the prescription is selected from a large number of drug containers 2 arranged in the drug shelf region 103, and the drug is selected. It is installed in the main body side device 3 of the feeder 1.
In the present embodiment, as described above, the drug container 2 and the main body side device 3 are separate, and when the powdered drug is packaged, both are combined to form the drug feeder 1.
That is, in the present embodiment, the drug container 2 is stored in a horizontal position, and the powdered drug is stored in the drug container storage shelf 101.
In the present embodiment, the drug container 2 is grasped by the drug container moving device 102, the drug container 2 is moved, and the drug container 2 is placed on the mounting table 60 of the main body side device 3 as shown in FIGS. 1 and 2.

Then, the electromagnet 62 built in the mounting table 60 is energized. As a result, a magnetic force is generated in the electromagnet 62, and the magnetic plate 25 of the drug container 2 is attracted to the suction surface on the mounting table 60 side.
Here, in the present embodiment, the lower cover 6 of the drug container 2 is provided with an opening 51, and the magnetic plate 25 is exposed from the opening 51. Therefore, the electromagnet 62 can be magnetized by directly contacting the magnetic plate 25, and the drug container 2 can be strongly fixed to the mounting table 60.
In this state, the passive member 13 of the drug container 2 is located directly above the drive member accommodating portion 75 of the mounting table 60. However, the bottom wall 47 of the lower cover 6 serves as a partition wall between the drive side member 63 and the passive member 13, and the drive side member 63 and the passive member 13 do not come into direct contact with each other.

Then, the motor 65 attached to the mounting table 60 is rotated. Here, since the output shaft 76 of the motor 65 is directly connected to the drive side member 63, the drive side member 63 in the drive member accommodating portion 75 is rotated by starting the motor 65.
Here, the drive-side member 63 is a cylindrical magnet, and the passive member 13 of the drug container 2 is in the vicinity of the drive-side member 63. The passive member 13 is also a cylindrical magnet. Therefore, the passive member 13 is attracted by the influence of the magnetic force of the drive-side member 63 and rotates together with the drive-side member 63.
That is, the passive member 13 is in the passive member accommodating space 22 surrounded by the lower cover 6 and is not in contact with the drive side member 63. Further, there is a bottom wall 47 of the lower cover 6 between the passive member 13 and the drive side member 63. In this way, the passive member 13 is not in contact with the drive side member 63, and there is a bottom wall 47 between them, but the magnetic force lines of the drive side member 63 penetrate the bottom wall 47 and apply magnetic force to the passive member 13. It acts to rotate the passive member 13.

As a result, the spiral member 12 connected to the passive member 13 rotates in the semi-cylindrical shaped portion 16 in the container body 8.
Here, the spiral member 12 is a screw, and blades 27a, 27b, and 27c are provided around the rotating shaft 26.
Further, there is no partition between the main accommodating portion 7 and the semi-cylindrical shaped portion 16, and they communicate with each other to form one drug accommodating portion 52.

Therefore, the powdered medicine in the drug accommodating portion 52 enters the semi-cylindrical shaped portion 16. Here, the inside of the semi-cylindrical shape portion 16 is at the bottom of the drug storage portion 52, and the cross-sectional shape of the container body 8 is substantially pentagonal as shown in FIG. 5, and is inclined so that the bottom surface side is narrowed. Further, the inner surface 14 of the container body 8 is an inclined surface 18. Therefore, the inside of the container body 8 has a shape that converges toward the semi-cylindrical shaped portion 16 as a whole, and the powdered powder in the drug accommodating portion 52 easily collects in the semi-cylindrical shaped portion 16. There is.
Therefore, the powdered drug of the drug accommodating portion 52 gathers in the semi-cylindrical shaped portion 16 and is pushed by the blades 27a, 27b, 27c by the rotation of the spiral member 12 and advances toward the drug discharging portion 24 side. Finally, the powdered drug is discharged to the outside from the drug discharge section 24 of the discharge port forming member 11.

Further, in the present embodiment, the blade 27 of the spiral member 12 is provided with a length extending over the entire length of the bottom of the drug accommodating portion 52, and the region where the blade 27 is provided is longer than that disclosed in Patent Document 2.
Therefore, the distance that the drug is pushed and moved is long. Therefore, even while being pushed by the blade 27 and moving, new powder enters the gap between the blades 27, and the powder is densely clogged between the blades 27 as it advances toward the discharge port forming member 11. Further, since the distance between the 27 on the front end side is narrower than that on the rear end side, the powder is densely clogged between the blades 27 as it advances toward the discharge port forming member 11.
Therefore, in the present embodiment, the amount discharged from the discharge port forming member 11 is stable.

Further, in the present embodiment, since three blades 27 are provided, a certain amount of powder is discharged from the discharge port forming member 11 per unit time.
That is, the powder is discharged when the drug reaches the end of the blade 27, but the amount discharged from the end of the blade 27 differs depending on the rotational posture of the end of the blade 27. Here, in the present embodiment, a plurality of blades 27 are provided, and the ends of the blades are all at the tip of the spiral member 12. Therefore, the fluctuation of the discharge amount due to the difference in the rotational posture of the end is canceled out, and the amount of the drug discharged from the discharge port forming member 11 is stabilized.

Further, in the present embodiment, the blades 27a, 27b, 27c of each system are provided with missing portions 28 at regular intervals. Therefore, even if a lump is formed in the powder while the spiral member 12 is rotating, the lump is destroyed at the missing portion 28. Therefore, the powdered medicine in a smooth state is discharged from the discharge port forming member 11.

Further, before and after the start of the motor 65, the distribution plate 112 of the powder distribution device 111 is rotated.
Before and after the start of the motor 65, the weight of the drug container 2 is measured. The weight of the drug container 2 is obtained by subtracting a constant value from the detected weight of the weight measuring means 61. More specifically, the weight of the drug container 2 is obtained by subtracting the weight of the member above the weight measuring means 61 of the main body side device 3 from the detected weight of the weight measuring means 61.
That is, the weight measuring means 61 measures all the weights of the members above the weight measuring means 61.
Therefore, when the drug container 2 is placed on the mounting table 60, the weight measuring means 61 detects a value obtained by adding the weight of the drug container 2 to the weight of the mounting table 60 or the like.
Since the weight of the mounting table 60 or the like is known here, the weight of the drug container 2 can be indirectly detected by subtracting the weight of the mounting table 60 or the like from the weight detected by the weight measuring means 61.
The weight of the drug container 2 immediately after being installed on the mounting table 60 is stored as the original weight G. The weight of the drug container 2 is constantly monitored. That is, the current weight of the drug container 2 is monitored as the current weight g.

When the motor 65 starts rotating, the spiral member 12 rotates in the container body 8, and the powder in the drug accommodating portion 52 is pushed by the spiral member 12 and slowly moves to the discharge port forming member 11 side to form the discharge port. It is gradually discharged from the member 11. Then, when the amount of powder H dropped reaches a desired weight, the rotation of the motor 65 is stopped.

After that, the rotation of the distribution plate 112 is stopped, the distribution plate 112 is rotated by an angle according to the number of distributions, and the powder is scraped out of the distribution plate 112 by the scraping device, as in the conventional powder packaging device. It is sent to the drug packaging device on the latter stage and packaged individually.

Further, the drug dispensing device 100 of the present embodiment has a function of confirming the inventory of drugs stored in the drug dispensing device 100 at the stage when the contents of the prescription are input, and confirming whether or not there is enough inventory to prescribe. It has. If there is not enough stock to prescribe, a display to that effect is displayed on the display device 123.

When the series of discharging steps and packaging steps are completed, the energization of the electromagnet is stopped, and the drug container moving device 102 is operated to return the drug container 2 to its original position.

The drug feeder 1 of the present embodiment rotates the spiral member 12 when discharging the drug, and most of the spiral member 12 is inside the container body 8. That is, the blades 27a, 27b, and 27c of the spiral member 12 are all in the drug accommodating portion 52, and are in a substantially sealed space. Therefore, the drug does not come out from the parts of the blades 27a, 27b, 27c.
The rear end of the spiral member 12 protrudes from the container body 8. However, the rear end of the spiral member 12 is in the passive member accommodation space 22. Here, the passive member accommodating space 22 is a space covered with the lower cover 6 and is a substantially enclosed space. Therefore, even if the powder leaks from the through hole 23 that supports the rotation axis of the spiral member 12, it does not go out of the passive member accommodating space 22. That is, in the present embodiment, the container body 8 and the lower cover 6 are doubly treated to prevent the powder from leaking, so that the powder does not scatter to the outside.

Similarly, since the passive member 13 which is a rotating member is also in the passive member accommodating space 22, the dust and slag generated by the passive member 13 do not scatter to the outside. Further, since the passive member 13 does not directly contact the drive side member 63, the amount of dust and slag generated by the passive member 13 is small in the first place. Therefore, there is no foreign matter mixed in with the drug.

When cleaning the drug feeder 1 of the above-described embodiment, the discharge port forming member 11 attached to the drug discharge port 15b is removed. That is, the discharge port forming member 11 is attached to the container body 8 by an engaging portion (not shown), and is removable from the container body 8.
When the discharge port forming member 11 is removed, the support on the tip end side of the spiral member 12 is released, and the tip end side of the spiral member 12 is exposed.

The rear end side of the spiral member 12 is supported by a through hole 23 provided in the back wall 14 of the container body 8. There is an engaging portion 30 at the rear end of the spiral member 12, and the engaging portion 30 is exposed from the container body 8 and engaged with the support shaft 31a of the passive member 13.
Therefore, in the drug feeder 1 of the embodiment, when the discharge port forming member 11 is removed to expose the tip of the spiral member 12, the tip of the spiral member 12 is pinched by a needle-nose pliers or the like and pulled, the engaging portion 30 at the rear end is obtained. Is detached from the support shaft 31a of the passive member 13, and the spiral member 12 is detached from the semi-cylindrical shaped portion 16 of the container body 8.
Therefore, in the drug feeder 1 of the embodiment, the spiral member 12 can be taken out and cleaned.
Further, in the present embodiment, since the lower cover 6 can be removed with a screw (not shown), the inside of the passive member accommodating space 22 can be cleaned.

In the embodiment described above, the passive member 13 and the drive side member 63 are both magnets, but one of them may be a coil. For example, even if the passive member 13 is a coil, the power of the drive side member 63 can be conducted by magnetic force.

In the above-described embodiment, the spiral member 12 has a blade 27, and the region where the blade 27 is provided extends over the entire length of the bottom of the drug accommodating portion 52. That is, in the above-described embodiment, the spiral member 12 as the drug moving member is on the bottom surface side of the drug container, and the length of the region provided with the blade 27 (spiral structure portion) is the length of the bottom surface of the drug accommodating portion 52. It has a length of 100%.
The length of the blade 27 portion is preferably 80% or more based on the total length of the bottom of the drug accommodating portion 52. Further, the blade 27 portion may be longer than the drug accommodating portion 52. The blade 27 portion preferably has a length of 80 percent to 120 percent of the length of the bottom surface of the drug containment section 52.

Next, other embodiments of the present invention will be described.
The drug feeder 130 of the second embodiment is also composed of the container main body 131 and the main body side member 128.
In the drug feeder 1 of the above-described embodiment, the spiral member 12 is provided at the bottom of the container body 8, whereas in the drug feeder 130 of the present embodiment, the spiral member 132 is provided at the center of the container body 131. There is.
Further, in the drug feeder 1 of the above-described embodiment, the drug is discharged with the container body 8 in a horizontal position, whereas in the drug feeder 130 of the present embodiment, the drug feeder side is tilted so as to be downward. Hold and drain the drug.

Hereinafter, the drug feeder 130 of the present embodiment will be described.
As described above, the drug container 133 of the drug feeder 130 is provided with the spiral member 132 at the center of the container body 131. The container body 131 used in the present embodiment has a shape like a normal bottle, and is composed of a cylindrical body 135 and a neck 136 provided at the tip of the body 135. The main body 135 and the neck 136 are provided concentrically. Further, the diameter of the neck portion 136 is clearly smaller than that of the main body portion 135.
In the drug feeder 130, the inside of the container body 131 is hollow. The inside of the main body 135 is the main accommodating portion 160.

A base member 140 is attached to the neck 136.
As shown in the figure, the base member 140 is composed of a mounting portion 141, a rotating ring 142, and a tip support portion 145.
The attachment portion 141 is a portion to be coupled to the tip of the drug container 133. Further, as a configuration peculiar to the present embodiment, the mounting portion 141 is provided with an L-shaped mounting bracket 146. The mounting bracket 146 is made of a magnetic material, and the horizontal bar 147 and the inclined bar 148 are integrated.

The rotating ring 142 is a ring that allows relative rotation with respect to other members. Gears 143a and 143b are engraved on the outside of the rotating ring 142.
The tip support portion 145 is a portion having a small outer diameter.
A through hole 150 is provided inside the base member 140, and the tip of the through hole 150 opens to the tip of the base member 140 to form a drug discharge portion 150a.

As shown in FIG. 14, a spiral member 132 is provided inside the base member 140. In the spiral member 132, an elongated member 137 constitutes a spiral. The elongated member 137 is ribbon-shaped, thin, and elongated.
The outer diameter of the spiral member 132 gradually decreases toward the tip side.
A rotating shaft 138 exists on the tip side of the spiral member 132, but the spiral is formed only by the elongated member 137 from the middle to the rear end.

The spiral member 132 is held by the base member 140. More specifically, the rotating ring 142 is located in the middle of the base member 140, and the spiral member 132 is attached to the rotating ring 142. Further, the drug discharging portion 150a is opened at the tip of the mouthpiece member 140, and the tip of the spiral member 132 reaches the drug discharging section 150a.
The rear end of the spiral member 132 is inside the container body 131. That is, in the present embodiment, the spiral member 132 is provided at a position extending from the main accommodating portion 160 to the vicinity of the drug discharging portion 150a, and the diameter of the spiral member 132 on the drug discharging side is the spiral structure portion on the main accommodating portion 160 side. Is smaller than the diameter of.

Next, the main body side device 128 will be described.
As shown in FIGS. 12 and 13, the main body side device 128 is composed of a mounting table 152, a weight measuring means 151, and a foundation member 164 from above. Further, there is a base case 165 integrally with the mounting base 152, and the motor 170 and the gear set 171 are attached to the mounting base 152.

The mounting table 152 is a table on which the drug container 133 is mounted as in the previous embodiment, and its surface has a shape that matches the shape of the horizontal bar 147 of the mounting bracket 146 of the drug container 133.
The mounting table 152 is provided with an electromagnet 166 as in the previous embodiment, and the magnetized surface (not shown) is exposed on the surface of the mounting table 152.

The base case 165 holds the mounting base 152. Further, there is a motor 170 and a gear set 171 in the base case 165. The motor 170 is in a slightly inclined vertical posture, and a bevel gear A is provided at its tip.
The gear set 171 conducts the rotational power of the cap gear A to the gears 143 a and b of the rotary ring 142, and the spur gear Ca that rotates integrally with the two cap gears Ba and Bb and the cap gears Ba and Bb. , Cb.
When the motor 170 rotates, the spur gears Ca and Cb rotate due to the rotational force.

The weight measuring means 151 is the same as that of the previous embodiment, is a known load cell, has an upper installation surface 78 and a lower installation surface 80, and both are at offset positions.
In the present embodiment, the mounting base 152, the motor 170, and the gear set 171 are all fixed to the base case 165, and the base case 165 is fixed to the upper installation surface 78 of the weight measuring means 151. Therefore, all the weights of the mounting table 152, the motor 170, the gear set 171 and the table case 165 are applied to the weight measuring means 151.

Also in this embodiment, the drug container 133 and the main body side device 128 are separate, and when the powdered drug is packaged, both are combined to form the drug feeder 130.
Also in the drug feeder 130 of the present embodiment, the drug container 133 is fixed to the main body side device 128 by the force of the electromagnet 166. Then, in this state, the spur gears Ca and Cb of the gear set 171 engage with the gears 143a and b of the rotating ring 142. Then, when the motor 170 is rotated, the spiral member 132 rotates in the container body 131 and scrapes out the powder inside.

In the embodiment described above, the drug moving members all have a spiral structure and have thin members such as blades and ribbons. Alternatively, a round bar having a groove and a spiral may be used as the drug moving member. That is, in the above embodiment, the spiral groove formed by the blade or ribbon is wider than the width of the blade or ribbon, but conversely, the groove width may be narrower.

Further, the drug moving member is not limited to the one having a spiral structure, and may have another structure. For example, the drug moving member is provided with a rotating member in a direction in which the rotating shaft intersects the moving direction of the drug like a water wheel, and the drug in the drug accommodating portion is moved to the drug discharging portion side by this rotational force. May be good.

Further, the drug moving member may have a vibrating member and may vibrate the drug in the drug accommodating portion to move the drug to the drug discharging portion side.

The drug moving member may have a member that moves in the front-rear direction, and may apply a force to the drug in the drug accommodating portion to move the drug to the drug discharging portion side.

The drug moving member may have a member that moves in a wave motion, and may move the drug in the drug accommodating portion to the drug discharging portion side on the wave.

The drug moving member may have a member that blows air, and may move the drug in the drug accommodating portion to the drug discharging portion side by blowing air.

As shown in FIG. 14, when the vibration feeder 180 is provided downstream of the drug feeder 1, the amount of the drug finally charged into the distribution dish 112 (the amount charged per unit time) becomes stable. That is, the amount of the drug discharged per unit time is made uniform.

Further, as in the drug dispensing device 182 shown in FIG. 15, the drug is directly dropped into the drug packaging area 106 without passing through the distribution plate 112, and the drug packaging device 120 provided in the drug packaging area 106 is used individually for each dose. It is also possible to wrap it.
That is, the drug dispensing device 182 shown in FIG. 15 does not have a distribution tray, and the charging hopper 183 of the drug packaging device 120 is provided at a position directly below the drug feeder 1. The drug packaging device 120 has the same structure as a known one, and is a device in which a drug is charged into the charging hopper 183 for each dose and individually packaged.

In the drug dispensing device 182 shown in FIG. 15, the drug feeder 1 is operated intermittently to discharge the drug for each dose. Then, this is directly charged into the charging hopper 183 of the drug packaging device 120 and individually packaged.
That is, in the drug dispensing device 182, the drug feeder 1 is programmed to repeatedly start and stop, and to discharge the drug from the drug feeder 1 one dose at a time. Then, the drug packaging device 120 operates in conjunction with the discharge of the drug, and discharges the drug one by one.
The drug feeder 1 is repeatedly started and stopped a predetermined number of times according to the contents of the prescription, discharges the drug according to the prescribed number of doses, and is packaged in the drug packaging device 120.

Further, the drug dispensing device 185 shown in FIG. 16 is a further development of the drug dispensing device 185, and a vibration feeder 180 is arranged downstream of the drug feeder 1. The drug dispensing device 185 shown in FIG. 16 also does not have a distribution tray, and a charging hopper 183 for the drug packaging device 120 is provided at a position directly below the vibration feeder 180.
In the drug dispensing device 185 shown in FIG. 16, the vibration feeder 180 is also provided with the weight measuring means 186.

In the drug dispensing device 185 shown in FIG. 16, the final discharge amount is calculated from both the detected weight of the weight measuring means 61 provided in the drug feeder 1 and the weight measuring means 186 provided in the vibration feeder 180.
That is, the weight measuring means 61 provided in the drug feeder 1 detects the weight G of the drug charged from the drug feeder 1 into the vibration feeder 180. The weight G is a decrease value of the detected value of the weight measuring means 61.

In the drug dispensing device 185, since the vibration feeder 180 charges the drug into the drug packaging device 120 on the downstream side while receiving the drug from the drug feeder 1, the weight of the drug charged from the drug feeder 1 into the vibration feeder 180. The final emission amount is obtained by subtracting the amount of change ga (which may be negative as well as positive) of the detected value of the weight measuring means 186 on the vibration feeder 180 side from GA.

In each of the embodiments described above, only one spiral member 12 is provided on the container bodies 8 and 131. However, the present invention is not limited to this configuration, and a plurality of spiral members 12 may be provided.
In the drug feeder 187 shown in FIG. 17, two spiral members 190 and 191 are provided on the container body 189 of the drug container.
The two spiral members 190 and 191 are individually driven by a passive member (not shown) and a separate driving side member (not shown).
In the present embodiment, a predetermined amount of the drug can be discharged each time the spiral member 190 rotates once. On the other hand, the other spiral member 191 has a smaller diameter than the spiral member 190, and the amount of the drug discharged per rotation is small.

In the drug feeder 187 shown in FIG. 17, when the amount of the drug per dose is small, the spiral member 191 on the narrow side is rotated to discharge the drug. On the other hand, when the amount of the drug per dose is large, the spiral member 190 on the thick side is rotated to discharge the drug. If the amount of the drug per dose is even higher, both spiral members 190 and 191 are rotated to discharge the drug.

1 Drug feeder 2 Drug container 3 Main body side device 5 Container assembly 6 Lower cover 7 Main housing 8 Container main body 10 Lid member 11 Discharge port forming member 12 Spiral member 13 Passive member 15a Drug inlet 15b Drug discharge port 16 Semi-cylindrical shape Part 21 Missing part 22 Passive member storage space 24 Chemical discharge part 25 Magnetic plate 26 Rotating shafts 27a, 27b, 27c Blade 28 Missing part 52 Drug storage part 60 Mounting stand 61 Weight measuring means 62 Electromagnet 63 Drive side member 64 Basic member 65 Motor 100 Drug dispensing device 103 Drug shelf area 105 Drug dividing area 106 Drug packaging area 111 Powder distribution device 128 Main body side member 130 Drug feeder 131 Container body 132 Spiral member 140 Base member 142 Rotating ring 152 Mounting stand 150a Drug discharging unit 151 Weight Measuring means 160 Main container 170 Motor 165 units Case 171 Gear set 182 Drug dispensing device 185 Drug dispensing device 186 Weight measuring means

Claims (10)

A medicament container which is kept in a state of housing the powdered medicine, and the tablet feeder composed of a main device, a medicament container storage rack storing a plurality of said drug container, located below the chemical container storage rack, the It is provided with a distribution plate that receives powder discharged from the drug container and a drug container moving device that moves the drug container from the drug container storage shelf to the main body side device .
The drug container has a drug container for accommodating powder and a drug discharge unit for discharging powder.
The drug container is removable from the main body side device and is removable.
Main body side apparatus has a weight measuring means for directly or indirectly measuring the weight of the drug container,
There are multiple main body side devices of the drug feeder, and the multiple main body side devices are fixed in the vicinity of the distribution pan.
With the drug container moving device, it is possible to place any one of the plurality of drug containers stored in the drug container storage shelf that has been separated from the main body side device on any of the plurality of main body side devices. ,
A drug dispensing device characterized in that powdered drug can be discharged from a drug discharging unit and the amount of powdered drug discharged can be detected based on a decrease value of a detection value of a weight measuring means. The drug dispensing device according to claim 1, wherein the drug container moving device is capable of moving the drug container in the up / down / up / down direction and the horizontal direction. The drug dispensing device according to claim 1 or 2, wherein the drug container discharges powder directly from a drug discharging unit to a distribution dish. The drug container moving device is located near the drug container storage shelf.
Any of claims 1 to 3, wherein the drug container, which has been separated from the drug container storage shelf and the main body side device, can be placed on the main body side device by the drug container moving device. The drug dispensing device described in the container. When moving the drug container, the drug container is selected from a plurality of the drug containers arranged on the drug container storage shelf, and the selected drug container is moved by using the drug container moving device. The drug dispensing device according to any one of claims 1 to 4. Further comprising a type of dispensing to the powdered medicine input means for inputting the prescribed dose, and storage means for storing the type and remaining amount of the powdered medicine stored in the medicine container storage rack,
Operations powdered medicine that is input to the input means to select said medication container housed is placed on the main device in the medicament container moving device to discharge the powder medicine prescription amount input to said input means Run and
When the remaining amount of powdered medicine to be prescribed, which is stored in the drug container storage shelf , is insufficient with respect to the prescribed amount, it is characterized by having a notification means for giving a predetermined notification prior to the discharge operation. The drug dispensing device according to any one of claims 1 to 5 . The sixth aspect of claim 6 is characterized in that the notification means is a display device that displays that the remaining amount of the powdered medicine is insufficient when the remaining amount of the powdered medicine is insufficient with respect to the prescribed amount. Drug dispensing device. Further provided vibrating feeder between the tablet feeder and distribution pan claim 1, wherein the tablet feeder is once supplying powdered medicine into the vibrating feeder, the powdered medicine in the distribution pan from the vibrating feeder is characterized in that it is provided The drug dispensing device according to 2, 4, 5, 6 or 7 . Further comprising a medicine packaging apparatus for packaging powdered medicine, said tablet feeder is capable of discharging each dose for minutes powdered medicine by repeating stop and operation, and packaged by dose for minutes powdered medicine by the medicine packing machine The drug dispensing device according to any one of claims 1 to 8 . The drug dispenser according to claim 9 , wherein the drug feeder repeats an operation of discharging powdered drug one by one a predetermined number of times.

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