JP2013075128A - Liquid discharge mechanism and dispenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sufficiently agitate a liquid inside a bottle by a simple configuration of just turning the bottle, and to surely prevent a failure such as leakage of the liquid.SOLUTION: A liquid discharge mechanism includes: a turning support part 168 for supporting a liquid bottle 2 capable of housing the liquid, tiltably in a vertically inverted state; and a discharge tube 221 for discharging the liquid housed in the liquid bottle 2 to the outside by a gas supplied from an air tube 220 into the liquid bottle 2. The liquid bottle 2 is tiltably supported. The distal end of the air tube 220 positioned inside the liquid bottle 2 is at a position higher than the liquid level of the liquid when the gas is supplied from the air tube 220 into the liquid bottle 2. To the distal end of the air tube 220, a check valve 300 for preventing the liquid from flowing in is attached.

Description

  The present invention mainly relates to a liquid discharge mechanism for discharging a chemical liquid, syrup, and the like from a chemical liquid bottle and filling the bottle for a patient, and a dispensing apparatus including the liquid discharge mechanism.

Conventionally, as a dispensing device provided with a liquid discharge mechanism, for example, one having the following configuration is known.
That is, Patent Document 1 discloses a dispensing device in which a plurality of chemical liquid bottles are mounted on a circular mounting body in plan view along the circumferential direction, and a chemical liquid is injected into each chemical liquid bottle via a nozzle. Is described.

  By the way, when the chemical liquid stored in the chemical liquid bottle is a suspension, the solid particles gradually dispersed in the liquid with time will become non-uniform, so it is necessary to agitate and homogenize before dispensing There is. For this reason, in the dispensing device, the chemical liquid is agitated by sucking the chemical liquid in the chemical liquid bottle using the nozzle and returning the sucked chemical liquid into the chemical liquid bottle again.

  However, the dispensing device described in Patent Document 1 requires a separate storage chamber in order to suck a sufficient amount of the chemical solution from the chemical solution bottle via the nozzle so that stirring can be appropriately performed.

  In addition, in order to quickly suck and discharge the chemical solution through the nozzle, it is necessary to make the pump to be used have a high performance. However, an increase in the size and cost of the pump is unavoidable, and the pump cannot be avoided. There is a limit to speeding up the suction and discharge of all chemicals.

JP 2009-178495 A

  The present invention provides a liquid discharge mechanism that can sufficiently stir the liquid in the bottle in a short time with a simple configuration of rotating the bottle, and that can reliably prevent problems such as liquid leakage. It is an object to provide a dispensing device.

As a means for solving the above problems, the present invention provides:
Liquid discharge mechanism
A rotation support unit that tiltably supports a liquid bottle capable of storing liquid;
An air tube for supplying gas from the outside to the inside of the liquid bottle supported by the rotation support part;
A discharge tube for discharging the liquid contained in the liquid bottle to the outside by the gas supplied from the air tube into the liquid bottle;
With
The tip of the air tube located in the liquid bottle is at a position higher than the liquid level of the liquid when gas is supplied from the air tube into the liquid bottle.
A check valve for preventing liquid from flowing in is attached to the tip of the air tube.

  With this configuration, even if the chemical solution bottle is tilted and the tip of the air tube is immersed in the chemical solution, the chemical solution does not enter the air tube by the function of the check valve. Therefore, it is possible to prevent the occurrence of problems caused by the chemical liquid leaking through the air tube or the chemical liquid solidifying in the air tube.

  A holding member for preventing the check valve from dropping off is preferably attached to the tip of the air tube.

  With this configuration, it is possible to reliably prevent the check valve from falling off.

  The holding member has a cylindrical shape, and the peripheral wall has an inner peripheral surface and an outer peripheral surface communicating with each other, and an opening for discharging the liquid remaining by tilting the liquid bottle from the holding member is formed. Is preferred.

  With this configuration, even if liquid is about to remain in the holding member, the liquid is recirculated through the opening, so that it is possible to prevent the occurrence of a problem that air cannot be supplied from the air tube due to solidification in the holding member. Can do.

As a means for solving the above problems, the present invention provides:
Dispensing device
Provided with a plurality of liquid discharge mechanisms of the above configuration,
A plurality of the rotational support portions are arranged along the circumferential direction of the annular region.

  It is preferable that the rotation support portion supports the liquid bottle so as to be tiltable toward the inner side of the annular region.

  According to the present invention, since the liquid bottle is supported upside down and tiltable, the liquid in the bottle is sufficiently stirred in a short time with a simple configuration of rotating the bottle. be able to. In addition, since a check valve is provided at the tip of the air tube, even when the stored chemical liquid is stirred by tilting the chemical liquid bottle, the chemical liquid flows out through the air tube, Therefore, it is possible to reliably prevent the occurrence of a problem such that the chemical solution remains and solidifies.

It is a perspective view of the dispensing apparatus which concerns on this embodiment. It is a perspective view which shows the state which removed the exterior panel etc. from FIG. It is a perspective view which shows the rotation support part, rotation drive part, and locking mechanism which are provided in the extraction | pouring position of FIG. It is a perspective view which shows the support stand of the lock mechanism and rotation support part of FIG. It is a perspective view which shows the state which added the rotation part to FIG. It is a perspective view which shows the rotation drive part of FIG. It is a perspective view which shows the state which looked at FIG. 6 from the other side. It is a perspective view which shows the state which mounted | wore the chemical | medical solution bottle which attached the plug body member to FIG. It is the perspective view which removed the lock main body from the lock member of Drawing 8, and was seen from a different angle. It is a perspective view which shows the plug body member with which the opening | mouth part of the chemical | medical solution bottle of FIG. 8 was mounted | worn. It is a perspective view which shows the state which looked at FIG. 10 from a different angle. It is a bottom view of the stopper of FIG. It is a partial expanded sectional view which shows the state which mounted | wore with the check valve at the front-end | tip of the air tube of FIG. It is a perspective view which shows the moving member provided in the extraction position of FIG. It is a perspective view which shows the state which looked at FIG. 14 from the other side. It is a schematic explanatory drawing which shows the mechanism for supplying air to the chemical | medical solution bottle of FIG. It is a schematic explanatory drawing which shows the cutoff method of the chemical | medical solution with the air tube which concerns on other embodiment. It is the schematic which shows the auxiliary | assistant guide part provided in the chemical | medical solution bottle which concerns on other embodiment. It is a schematic side view which shows the structure of the rotation support part of FIG. It is a perspective view which shows the bottle mounting part provided in the extraction | pouring position of FIG. 2, and its raising / lowering mechanism. It is a perspective view which shows the state which looked at FIG. 20 from the downward side. It is a schematic front view which shows a dilution water injection | pouring part. It is a schematic front view which shows a nozzle washing | cleaning part. It is a block diagram of the dispensing apparatus which concerns on this embodiment It is a flowchart which shows the dispensing process performed with the control apparatus of FIG. It is a flowchart which shows the chemical | medical solution extraction process of FIG. It is a flowchart which shows the diluent injection process of FIG. It is a flowchart which shows the washing | cleaning process of FIG. It is a perspective view which shows the front-end | tip structure of the air tube which concerns on other embodiment. FIG. 30 is an exploded perspective view of FIG. 29. FIG. 30 is a cross-sectional view of FIG. 29.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings. In the following description, terms indicating specific directions and positions (for example, terms including “up”, “down”, “side”, “end”) are used as necessary. Is for facilitating understanding of the invention with reference to the drawings, and the technical scope of the present invention is not limited by the meaning of these terms. Further, the following description is merely illustrative in nature and is not intended to limit the present invention, its application, or its use.

(1. Overall configuration)
FIG. 1 is a schematic perspective view of a dispensing apparatus according to the present embodiment, and FIG. 2 shows a state where an exterior panel and the like are removed from FIG. This dispensing apparatus includes a bottle support portion 3 that rotatably supports a plurality of chemical liquid bottles 2 that are examples of liquid bottles, and each chemical liquid supported by the bottle support portion 3. A rotation drive unit 4 for rotating the bottle 2, a chemical solution dispensing unit 5 for dispensing the chemical solution stored in each chemical solution bottle 2, and a dilution water injection for injecting dilution water into the patient bottle 6 Part 7 (omitted in FIG. 2, refer to FIG. 22 for details), and nozzle cleaning part 8 (omitted in FIG. 2, refer to FIG. 23 for details) for cleaning the nozzle used in the chemical liquid dispensing unit 5; A control device 9 (not shown in FIG. 2; see FIG. 24 for details) for driving and controlling these components is provided.

(1-1. Main unit)
The apparatus main body 1 disposes the chemical solution in the chemical solution bottle 2 by disposing a detachable space 163 for enabling the chemical solution bottle 2 to be attached to and detached from the bottle support portion 3 and the patient bottle 6 on the lower side of the display 162. A dispensing space 164 is provided. The detachable space 163 can be opened and closed by a first shutter 165a provided so as to be slidable in the horizontal direction along the front and right sides of the apparatus main body 1. The first shutter 165a can open not only the front side but also the side area. Therefore, the attaching / detaching operation of the chemical liquid bottle 2, the internal cleaning, the maintenance, and the like can be easily performed. Further, the rear surface of the detachable space 163 can be opened and closed by the second shutter 165b. With the second shutter 165b moved to the open position, the chemical bottle 2 can be rotated from the attachment / detachment preparation position to the attachment / detachment position and can be agitated, as will be described later. Yes. When the chemical bottle 2 is not rotated, access to the internal space of the apparatus main body 1 is prevented by moving the second shutter 165b to the closed position.

(1-2. Bottle support)
A bottle support 3 is provided in the apparatus main body 1. The bottle support portion 3 has a configuration in which a plurality of rotation support portions 168 are provided on an annular support body 167 provided in the apparatus main body 1. A mechanism for rotating the chemical liquid bottle 2 supported by the rotation support unit 168 (a rotation driving unit 4 described later) and a mechanism for discharging the chemical liquid from the chemical liquid bottle 2 to the patient bottle 6 (described later). The moving member 253, the second pressing member 254, etc.) are disposed in the vicinity of the annular support 167, and a wide space can be secured on the lower side. For this reason, it is possible to make the above-mentioned attachment / detachment space 163 and dispensing space 164 sufficiently wide.

  Although the details of the annular support 167 are not shown, an annular guide portion protruding in a substantially triangular cross section is formed on the outer peripheral portion. The annular support 167 is supported at four locations of the annular guide portion by a support roller having a substantially V-shaped groove formed on the outer peripheral surface thereof, and can be rotated by driving a motor.

  The annular support 167 is provided with rotation support portions 168 at equal intervals in a plurality of locations in the circumferential direction, and the chemical bottle 2 is supported by each rotation support portion 168 (in FIG. 2, the rotation support portion 168). And only two of the chemical bottles 2 are shown).

  As shown in FIG. 3, the rotation support portion 168 includes a support base 169 and a rotation portion 171 connected to the support base 169 so as to be rotatable about a support shaft 170.

  As shown in FIG. 4, the support base 169 includes a support body 172 having a bifurcated lower end side, and a groove 173 in the support body 172 (in an attached state to the annular support body 167, the outer diameter of the annular support body 167. Side wall part 174 formed on the side) and an attachment part 175 extending from the upper end of the support body 172.

  A through-hole 172a (the side wall portion side is not shown) is formed in the support main body 172 and the side wall portion 174, and a support shaft 170 is inserted therethrough as shown in FIG. A driven gear 176 in which a region where a gear is formed is limited by cutting a part of the outer peripheral surface is fixed to one end portion of the support shaft 170. A circular opening (not shown) is formed in the side wall part 174, and a rod 208 of a lock mechanism 186 described later can be projected and retracted in the groove part 173 through the opening.

  The rotating portion 171 is obtained by fixing a pair of arm portions 179 a and 179 b via a spacer 178 to a rotating plate 177 provided on the support base 169 so as to be rotatable about a support shaft 170.

  The rotating plate 177 has a configuration in which both side walls 181 a and 181 b are arranged opposite to each other on both sides of the intermediate wall 180 and one end thereof is covered with a ceiling wall 182. The other end portions of the side walls 181a and 181b further extend from the intermediate wall 180, and the extended portion is rotatably supported by a support shaft 170 provided on the support base 169. One side wall 181a is formed with an opening (not shown) through which a rod 208 of a lock mechanism 186 described later is inserted. When the rotation plate 177 is rotated to the upper rotation position, the one side wall 181 a is located in the groove 173 of the support body 172, and the other side wall 181 b is located on the one outer surface side of the support body 172. To position.

  A substantially U-shaped guide portion 183 is formed by the spacer 178 and the both arm portions 179a and 179b, and the stopper 219 attached to the chemical liquid bottle 2 is detachable. One arm portion 179b is formed with a rectangular locking hole 184, and a locking claw 233 provided on the plug 219 can be engaged and disengaged. Accordingly, the chemical liquid bottle 2 can be held by the both arm portions 179a and 179b via the plug body 219, that is, the plug body member 218.

  Thus, the chemical solution bottle 2 can be held by the arm portions 179a and 179b protruding from the rotation plate 177 of the rotation support portion 168 to the inside of the annular support body 167 (see FIG. 3). Therefore, when the rotation support part 168 is rotated, the chemical bottle 2 moves from the attachment / detachment preparation position on the upper inner side of the annular support 167 to the attachment / detachment position in the attachment / detachment space 163 on the lower outer side. That is, the attachment / detachment position can be set to a position where it is easy to work from the outside of the apparatus main body 161.

  The liquid chemical bottles 2 supported by the respective rotation support portions 168 by the rotation of the annular support 167 are transported by a predetermined pitch in the circumferential direction, and the transport positions include an attaching / detaching preparation position of the chemical liquid bottle 2 and a dispensing position. It is.

  As shown in FIG. 3, the rotation drive unit 4 and the lock mechanism 186 are arranged in the vicinity of the attachment / detachment preparation position.

(1-3. Rotation drive unit)
As shown in FIGS. 6 and 7, the rotation drive unit 4 includes a rotation drive main body 187, a first motor unit 188 that can be moved up and down on the rotation drive main body 187, and the first motor unit 188. And a second motor unit 189 that moves up and down, and is positioned below the rotation support unit 168.

  The rotational drive main body 187 includes a bottom plate 190 having a rectangular shape in plan view, and guide frames 191 provided at both ends thereof. A region surrounded by the guide frame 191 and the bottom plate 190 is provided with a pair of guide shafts 192 (one not shown) at a predetermined interval in the width direction. And the raising / lowering block 193 is each provided so that raising / lowering along the guide shaft 192 is possible.

  As shown in FIG. 6, the first motor unit 188 includes a cover body 197 including a front plate 194, both side plates 195, and a top plate 196. The first motor 198 is fixed to the back surface of the front plate 194, A first drive gear 199 and an intermediate gear 200 are provided on the front surface of the face plate 194. The first drive gear 199 is attached to the rotation shaft of the first motor 198 that passes through the front plate 194 and protrudes to the front side. Further, the intermediate gear 200 is rotatable around the shaft portion and meshes with the first drive gear 199. Accordingly, when the first motor 198 is driven to rotate in the forward and reverse directions, the intermediate gear 200 rotates in the forward and reverse directions via the first drive gear 199.

  As shown in FIG. 7, the second motor unit 189 meshes with the second motor 201 fixed to the bottom plate 190 of the rotation drive main body 187 and the second drive gear 202 provided on the rotation shaft of the second motor 201. And a rack portion 203 fixed to the one lifting block 193. Thus, when the second motor 201 is driven to rotate in the forward and reverse directions, the lifting block 193 moves up and down along the guide shaft 192 from the second driving gear 202 via the rack portion 203. When the elevating block 193 is moved upward, the intermediate gear 200 is raised accordingly, and the intermediate gear 200 meshes with the driven gear 176 of the support base 169 shown in FIG.

  As shown in FIGS. 8 and 9, the lock mechanism 186 is for restricting the position of the rotating portion 171 with respect to the support base 169. As shown in FIG. 8, the lock mechanism 186 positions the rotating portion 171 with respect to the support base 169, and a lock member 204 for maintaining the chemical bottle 2 upside down, and the lock member 204 And an actuating member 205 for actuating. The lock member 204 is attached to each rotation support portion 168, and the operation member 205 is disposed in the vicinity of the attachment / detachment preparation position.

  As shown in FIG. 9, the lock member 204 includes a lock main body 206 that is screwed and fixed to the side wall portion 174 of the support base 169, and a rod portion 207 that is slidably held by the lock main body 206. The lock body 206 is formed in a rectangular frame shape. The rod portion 207 is obtained by connecting a pair of upper and lower rods 208 with two right and left connecting rods (a first connecting rod 209a close to the support base 169 and a second connecting rod 209b far away). Each rod 208 is slidably disposed on an upper part and a lower part of the lock body 206. The connecting rod 209 is disposed in the opening portion so as to be movable in the left-right direction through the elongated holes in the upper portion and the lower portion that open to the opening portion 206a of the lock body 206.

  As shown in FIG. 9, the actuating member 205 includes an actuating main body 210, an actuating bar 211 that can be moved in and out of the actuating main body 210, and an actuating motor 212 for reciprocating the actuating bar 211.

  The operation main body 210 has a thin and substantially rectangular parallelepiped shape, and a communication hole communicating with the upper and lower surfaces is formed at a position slightly shifted from the center to one side edge. In addition, on the upper surface of the operation main body 210, an opening that also opens at a part of the inner peripheral surface constituting the communication hole is formed. Further, on the upper surface of the other side edge portion of the operation main body 210, elongated holes are respectively formed at three locations along the side edge portion. Three magnetic sensors 213 (one is omitted in FIG. 9) are respectively attached using the long holes.

  The actuating bar 211 is rod-shaped, and on one end side, a substantially triangular first protrusion 214 and a second protrusion 215 are formed on the left and right sides at two positions in the longitudinal direction. A permanent magnet (not shown) is provided on the upper surface of the other end side of the operation bar 211. The permanent magnet is detected by each magnetic sensor 213 so that it can be determined whether the operation bar 211 is located at the reference position, the first protruding position, or the second protruding position. The actuating bar 211 is in the first projecting position, and the first projecting portion 214 presses the first connecting rod 209a, and the rod 208 projects to the support base 169 side to the opening formed in the side wall 181a of the rotating plate 177. Positioning restricts the position of the rotation plate 177 (the rotation part 171) with respect to the support base 169 (locked state). Further, the operating bar 211 is the second projecting position, the second projecting portion 215 presses the second connecting rod 209b, and the rod 208 is retracted from the support base 169 side to make the pivot plate 177 pivotable ( Unlocked). A rack gear (not shown) is formed on one side surface of the operation bar 211.

  The driving motor 212 has a driving gear 216 integrated with a rotating shaft, and is fixed to the operating body 210 via a mounting plate 217. In this fixed state, the drive gear 216 is positioned in the communication hole of the operation main body 210 and functions as a pinion that meshes with the rack gear of the operation bar 211 through the opening. The operating motor 212 is driven to rotate forward and backward in accordance with a control signal from the control device based on the detection signal from each magnetic sensor 213.

(Plug body member)
A plug member 218 is attached to the upper opening of the chemical liquid bottle 2.
As shown in FIGS. 10 to 12, the plug member 218 is a flexible material connected to one of a plug 219 and a pair of through holes (not shown) penetrating the plug 219. A first tube 221, a guide member 222 that guides the first tube 221, and a first pressing member 223 that opens and closes the flow path by contacting and leaving the first tube 221 guided by the guide member 222. . Here, the first tube 221 functions as the discharge tube of the present invention.

  The stopper 219 has a substantially rectangular parallelepiped shape, and a concave portion 224 having a circular shape in plan view in which the mouth of the chemical liquid bottle 2 can be arranged is formed on the mounting surface. A female screw (not shown) is formed on the inner peripheral surface of the recess 224, and a male screw formed at the mouth of the medicine bottle 2 can be screwed together. A pair of through holes are formed in the bottom surface of the recess 224. An air tube 220 is connected to one through hole, and air is supplied into the chemical liquid bottle 2 through the air tube 220. The other through-hole is for discharging the chemical solution from the chemical solution bottle 2 and is connected to the first tube 221.

  In addition, an RFID 225 (Radio Frequency IDentification) is built in the mounting surface in the vicinity of the recess 224. The RFID 225 stores a specific ID (IDentification: hereinafter referred to as an attachment position ID) for identifying which rotation support unit 168 is the rotation support unit 168. The mounting position ID stored in the RFID 225 is written by an RFID reader / writer (not shown).

  A protrusion 226 is formed at the upper end of the side surface of the stopper 219, and a bottle stopper 227 is slidably attached thereto. The bottle fastener 227 is formed by molding a synthetic resin material into a substantially U shape, and includes a side wall portion 228 that surrounds the three surrounding sides and a U-shaped presser portion 229 that bulges inward from the inner edge portion. Yes. A groove 230 is formed at the lower end of the facing surface of the side wall 228, and the protrusion 226 of the plug 219 is located. Then, with the mouth portion of the chemical liquid bottle 2 screwed into the concave portion 224 of the stopper 219, the holding portion 229 is engaged with the annular bulging portion 2a of the chemical liquid bottle 2 simply by sliding the bottle stopper 227. Stop. When the chemical bottle 2 is not screwed to the concave portion 224 of the stopper 219 to an appropriate position, the bottle fastener 227 cannot be properly locked to the annular bulging portion 2a of the chemical bottle 2, and the screw bottle 2 is screwed. It is understood that the state is insufficient.

  A latch member 231 is provided in the plug body 219. As shown in FIG. 11, the latch member 231 is configured to immerse the locking claw 233 protruding from one side surface by pressing the pressing portion 232 protruding from one end side. The pushing portion 232 of the latch member 231 protrudes from one end surface of the plug body 219 so as to be pushed in, and the locking claw 233 protrudes from one side surface of the plug body 219 so as to be retractable. The locking claw 233 is engaged with and disengaged from a locking hole 184 formed in one arm portion 179 b of the rotating portion 171 so that the plug 219 can be attached to the rotating portion 171 of the rotating support portion 168.

  As shown in FIG. 12, a communication hole (not shown) is opened on the bottom surface of the plug 219 in addition to the pair of through holes described above. The first tube connector 234 is connected to one through hole, and one end of the first tube 221 is connected to the first tube connector 234. A second tube connector 235 is connected to the other through hole, and an opening on one end side of the second tube 236 is further connected thereto. A third tube connector 237 is connected to the communication hole, and the other end side opening of the second tube 236 is connected to the communication hole. The communication hole extends to one end surface of the plug 219, and a conical guide recess 238 (see FIG. 10) is formed at the opening position.

  Further, on the bottom surface of the plug body 219, a pressure receiving piece 239 attached so as to be rotatable about the shaft portion 239a is provided. One end portion of the pressure receiving piece 239 protrudes obliquely from the plug body 219 to the side, and the other end portion presses the second tube 236 against the substantially U-shaped guide receiving portion 240 fixed to the bottom surface of the plug body 219. Yes. The pressure receiving piece 239 rotates when a pressing plate 269 (see FIG. 14) described later is pressed against one end of the pressure receiving piece 239 to release the closed state of the second tube 236 and open the flow path.

  As shown in FIG. 3, the air tube 220 is connected to one through hole formed in the recess 224 of the plug 219 and extends into the chemical liquid bottle 2, and its tip is located near the bottom surface of the chemical liquid bottle 2. Yes. As shown in FIG. 13, an opening 220 a is formed at the center of the distal end surface of the air tube 220, and a check valve 300 is attached thereto. Therefore, the chemical solution in the chemical solution bottle 2 moves to the space side formed on the mouth portion side at the normal position where the mouth portion faces upward when the chemical solution bottle 2 is turned upside down. Is formed. For this reason, the tip position of the air tube 220, that is, the check valve 300 is located above the liquid level. If the check valve 300 is in the chemical solution, even if gas is supplied, the chemical solution may flow into the air tube 220, but there is no such concern because it is located above the liquid level. The check valve 300 is made of a rubber material in a cylindrical shape, and is formed with a flange portion 300a that engages with an annular groove 220b formed on the inner peripheral surface of the opening 220a on one end side. Further, the other end side of the check valve 300 is formed with a tapered portion 300b whose flow passage cross-sectional area gradually decreases toward the tip. A slit 300c is formed at the tip of the tapered portion 300b, and opens in a cylindrical shape when the internal pressure of the air tube 220 becomes a predetermined value or more. Further, when the internal pressure rises, the check valve 300 is elastically deformed and pressed against the inner peripheral surface of the air tube 220, so that it is difficult to drop off.

  The structure for mounting the check valve 300 to the air tube 220 is not limited to the above-described structure, and a recess (or an annular recess extending in the circumferential direction) is formed on the outer peripheral surface of the check valve 300, while the air tube A protrusion (which may be an annular protrusion engaged with and disengaged from the annular recess) that engages with the recess may be formed on the inner peripheral surface of 220.

  In addition, a cap member having an opening, which is an example of a holding member of the present invention, is attached to the tip of the air tube 220 by screwing or the like, and the check valve 300 cannot be removed unless the cap member is removed. May be.

  Specifically, as shown in FIGS. 29 to 31, a cylindrical cap member 400 that can be attached and detached by screwing can be provided at the tip of the air tube 220. The tip of the air tube 220 has a stepped shape, and a male screw is formed on the large diameter portion 220c adjacent to the small diameter portion 220d.

  As shown in FIG. 31, the inner peripheral surface of the cap member 400 has a first inner diameter portion 401 having a slightly larger inner diameter than the outer peripheral surface of the check valve 300, and extends to the lower end side from the first inner diameter portion 401. The second inner diameter portion 402 having a larger inner diameter, and a female screw extending further to the lower end side and having a larger inner diameter than the second inner diameter portion 402 and screwed into the male thread of the air tube 220 on the inner peripheral surface. The third inner diameter portion 403 is formed. A step portion 404 formed at a boundary portion between the first inner diameter portion 401 and the second inner diameter portion 402 is for holding the flange portion 300a of the check valve 300 between the distal end surface of the air tube 220. However, the female screw can be formed not only in the third inner diameter portion 403 but also in the second inner diameter portion 402. In this case, the air tube 220 may be formed with a female screw in the small diameter portion 220d.

  Further, as shown in FIG. 30, the inner peripheral surface and the outer peripheral surface are communicated with the peripheral wall (here, the first inner diameter portion 401) of the cap member 400 at two symmetrical positions around the axis. Each opening 405 is formed. These openings 405 are for refluxing the chemical liquid that has entered the cap member 400 by rotating the chemical liquid bottle 2. That is, when the chemical solution in the chemical solution bottle 2 is rotated in the range from the upside down state to the state where the bottom surface is directed downward in order to stir the chemical solution in the chemical solution bottle 2, the chemical solution enters the cap member 400. In this case, if the opening 405 is not formed in the cap member 400, the chemical solution remains in the cap member 400 when the chemical solution bottle 2 returns to the upside down state. By forming the opening 405 in the cap member 400, the chemical solution does not remain in the cap member 400 and is refluxed. Therefore, it is possible to prevent the occurrence of problems such as the supply of air from the air tube 220 being hindered due to solidification of the remaining chemical solution.

  The cap member 400 is attached to the air tube 220 by screwing in a state where the flange portion 300a of the check valve 300 is placed on the distal end surface of the air tube 220. By screwing the cap member 400 into the air tube 220, the flange portion 300 a of the check valve 300 is in an elastically compressed state, and the gap between the front end surface of the air tube 220 and the step portion 404 of the cap member 400. Sandwiched between. Therefore, the check valve 300 can be firmly attached, and the cap member 400 from the air tube 220 can be prevented from loosening (or falling off).

  Further, the tip of the check valve 300 attached to the tip of the air tube 220 by the cap member 400 in this way is located flush with or inside the tip opening end of the cap member 400. For this reason, it is possible to prevent the check valve 300 from being touched by the user's hand or the check valve 300 from coming into contact with the chemical liquid bottle 2 and to reliably prevent the check valve 300 from dropping off. it can.

  In the cap member 400, the openings 405 are formed in two places. However, the openings 405 are not limited to those described above, and may be formed in only one place or in three places or more. Further, the shape and size of the opening 405 can be freely set. In short, any configuration may be used as long as the chemical solution can be prevented from remaining in the cap member 400 when the chemical solution bottle 2 is turned upside down.

  As shown in FIG. 10, the guide member 222 is provided with a first guide portion 241 and a second guide portion 242 on a support plate 222 a fixed to the bottom surface of the plug 219.

  The first guide portion 241 is fixed to one side surface of the support plate 222a, and has a curved surface 243 that gradually protrudes forward as the end surface on the protruding side goes downward. The front end portion of the curved surface 243 is cut away leaving both side portions to form a groove-shaped portion 244, and the bottom surface thereof is constituted by a flat pressure receiving surface 245.

  The first guide portion 241 includes a first link plate 246, a second link plate 247, and a first pressing member 223 that are attached to the other side surface of the support plate 167.

  The first link plate 246 is attached to the support plate 222a so as to be rotatable about the support shaft 246a. The first link plate 246 has a press receiving portion 248 formed by extending one end portion thereof in a right angle direction. A pressing roller 273 integrated with the cam 271 is pressed against the pressing receiving portion 248, and the first link plate 246 rotates.

  The second link plate 247 is attached to the support plate 222a so as to be rotatable about the support shaft 247a. A first pressure receiving roller 249a is rotatably provided on one surface of the second link plate 247, and a second pressure receiving roller 249b is rotatably provided on the other surface. The second link plate 247 is biased by a spring 250 (not locked in FIG. 10), and the second pressure receiving roller 249b is pressed by a pressing portion 274 formed on the cam 271 of the second pressing member 254. As a result, it rotates counterclockwise in FIG. 10 about the support shaft 247a against the urging force of the spring 250.

  The first pressing member 223 is fixed to the second link plate 247. The first pressing member 223 includes a pressing protrusion 251 whose one end bulges in a semicircular cross section. When the second link plate 247 is rotated by the biasing force of the spring 250, the pressing protrusion 251 of the first pressing member 223 enters the groove-shaped portion 244 of the first guide portion 241. As a result, when the pressing protrusion 251 approaches the pressing receiving surface 245, the first tube 221 disposed there is crushed and elastically deformed, and the flow path is closed. Further, as described above, the second link plate 247 rotates when the first pressing receiving roller 249a is pressed by the pressing portion 274 formed on the cam 271 of the second pressing member 254, and the second link plate 247 is rotated by the pressing protrusion 251. The pressed state of the first tube 221 is released to open the flow path.

  The second guide portion 242 is fixed to the support plate 222a, and a through hole (not sushi) is formed on the free end side. A fourth tube connector 252 is connected to the through hole, and the first tube 221 is connected to the fourth tube connector 252. The second guide part 242 is provided with a detection sensor (not shown) for detecting the chemical bottle. Thus, when a lifting mechanism 312 described later is driven to raise a chemical bottle placed on the placement plate 311, the position can be detected. After the chemical bottle is detected by the detection sensor, it is possible to accurately raise the chemical bottle from the dispensing position to a predetermined position by driving and controlling the lifting mechanism 312 based on the detection signal. .

  A second pressing member 254 that moves by the moving member 253 and adjusts the outflow amount of the chemical liquid to be extracted from the chemical liquid bottle 2 can be disposed at the extraction position.

  As shown in FIG. 14, the moving member 253 includes a slide base 256 that can be moved forward and backward by driving a slide motor 255. A rack 257 is formed on the side of the slide table 256, and a pinion (not shown) provided on the rotation shaft of the slide motor 255 is engaged with the rack 257. The movement of the slide base 256 is detected by the slide position detection sensor 258, and the second pressing member 254 can be positioned at the forward position and the backward position, respectively.

  Further, as shown in FIG. 15, a holding block 259 that holds a rotation motor 270 described later is provided above the slide table 256. On the upper side of the holding block 259, an air supply pipe 260 and a nozzle portion 261 connected thereto are provided. As shown in FIG. 16, the air supply pipe 260 is connected to an air supply source 262 and ejects air supplied therefrom from the nozzle portion 261. The nozzle portion 261 is inserted into a guide recess 238 formed on the end surface of the plug 219 and connected to a communication hole (not shown). Therefore, the ejected air is supplied from the air tube 220 into the chemical liquid bottle 2 through the communication hole.

  A compressor is used for the air supply source 262, and in the middle of the path to the nozzle portion 261, four sets of a switch valve 263 and a needle valve 264 connected in series from the air supply source side are connected in parallel, and beyond that An open / close valve 265 and a pressure sensor 266 are connected. Any one of the four switch valves 263 is opened, and air can flow only in one flow path. The needle valve 264 has different flow rates per unit time that can be passed. Then, by opening any one of the switch valves 263, the amount of air supplied into the chemical liquid bottle 2 can be adjusted. The opening / closing valve 265 and the pressure sensor 266 are not necessarily required.

  As shown in FIG. 15, the substrate 268 and the pressing plate 269 are fixed to the holding block 259 via the holding plate 267. The pressing plate 269 presses and rotates one end of the pressing receiving piece 239 when the slide base 256 is advanced. And when the press receiving piece 239 rotates, the 2nd tube 236 (refer FIG. 12) arrange | positioned in the vicinity is open | released from the crushed state, and enables the flow of air.

  The second pressing member 254 is attached above the slide base 256. The second pressing member 254 includes a cam 271 provided on the rotation shaft of the rotation motor 270. A pressing protrusion 272 is formed on one surface of the cam 271. Then, when the rotation motor 270 is driven in the normal direction to rotate the cam 271 in the normal direction, the pressing protrusion 272 comes into contact with the lower edge 261a of the first link plate 246, and the first link plate 246 is moved (in FIG. Rotate clockwise about the spindle 246a.

  A rotatable pressing roller 273 is provided on the other surface of the cam 271. Then, when the rotating motor 270 is driven in reverse to reversely rotate the cam 271, the pressing roller 273 comes into pressure contact with the first tube 221. Then, by rolling while changing the pressure contact position, the chemical solution in the first tube 221 is sent out by a predetermined amount. At this time, the pressing protrusion 272 contacts the upper edge 261b of the first link plate 246, and the first link plate 246 is rotated (counterclockwise in FIG. 10 about the support shaft 246a). The first link plate 246 has no influence on other members.

  Further, a pressing portion 274 that partially protrudes is formed on the outer peripheral portion of the cam 271. The pressing portion 274 is in pressure contact with the second pressing receiving roller 249b of the second link plate 247 shown in FIG. 10 and rotates the second link plate 247. Then, by rotating the first pressing member 223 integrated with the second link plate 247, the pressing of the first tube 221 by the pressing protrusion 251 is temporarily released.

  Further, as shown in FIG. 18, the stopper 219 is preferably provided with an auxiliary guide portion 275 that guides the body portion and the bottom portion of the chemical liquid bottle 2 in a rotatable manner.

  The auxiliary guide portion 275 is provided on the stopper 219 so as to be rotatable about the shaft portion, and has a lattice-shaped side surface portion 276 that guides a part of the outer peripheral surface of the chemical liquid bottle 2 and a bottom surface that guides about half of the bottom surface. Part 277. Similarly to the bottle fastener 227, the auxiliary guide portion 275 is not screwed to the concave portion 224 of the stopper 219 to an appropriate position, similarly to the bottle fastener 227. The bottom surface portion 277 cannot rotate to a position where it guides the bottom surface of the chemical liquid bottle 2. Therefore, it is possible to detect whether or not the screwing state of the chemical liquid bottle 2 is appropriate also by the auxiliary guide portion 275.

(1-4. Chemical solution dispensing part 5)
As shown in FIG. 19, the drug solution dispensing unit 5 includes a bottle placing unit 60 for placing the patient bottle 6 filled with the dispensed drug solution, and an air tube 220 in the drug solution bottle 2. And an air supply unit 61 capable of supplying air via the air supply unit 61.

  As illustrated in FIGS. 20 and 21, the bottle mounting unit 60 includes a mounting plate 311 that is mounted on the lifting platform 310. The lifting platform 310 is supported at the tip of a lifting arm 313 that is lifted and lowered by a lifting mechanism 312 via a load cell 314. The elevating mechanism 312 moves the elevating arm 313 along the guide shafts 319 provided on both sides of the elevating ball screw 318 by rotating the elevating ball screw 318 via the pulley 316 and the belt 317 by driving the elevating motor 315. It is configured as follows. The raising / lowering position of the raising / lowering arm 313 can be specified using an encoder (not shown). The load cell 314 detects the weight of the lifting platform 310, the mounting plate 311 and the patient bottle 6 mounted thereon.

  The lifting platform 310 includes a pair of clamping pieces 321 that can be opened and closed above the pedestal portion 320. The pedestal part 320 is formed with a locking recess (not shown) having a rectangular shape in plan view on the upper surface on one end side. When the mounting plate 311 is placed on the locking recess, a locking protrusion (not shown) provided on the lower surface of the mounting plate 311 is locked. Thereby, the position shift of the mounting plate 311 is prevented.

  Each sandwiching piece 321 opposes so as to be able to contact and separate, and the facing portion is shaped so as to approach again after gradually moving away from the base toward the tip, and the portion that sandwiches the intermediate drug solution bottle 2 is It is composed of a pair of tapered surfaces having a predetermined angle. Each clamping piece 321 is slidably supported on the pedestal portion 320 by two guide bars 322 provided in the pedestal portion 320. A guide plate 323 extends from each sandwiching piece 321 into the pedestal portion 320, and an interlocking gear 324 is engaged with each rack formed at the opposite edge. Each clamping piece 321 is urged in the approaching direction by an urging force of a spring (not shown). The interlocking gear 324 is rotated by driving a motor (not shown), and the holding piece 321 is synchronized with the guide plate 323 via the guide plate 323. However, the approach of the clamping piece 321 is up to a predetermined position, and thereafter, the connection with the motor side is cut off, and the chemical bottle 2 is clamped only by the urging force of the spring.

  The mounting plate 311 is made of a plate material having a rectangular shape in plan view, and a recess 311a for mounting the chemical liquid bottle 2 is formed on the upper surface of the one end side. When the lifting / lowering base 310 is located at the lowest position, the mounting plate 311 comes into contact with a support base (not shown) provided on the bottom surface portion constituting the dispensing space 164 and floats from the lifting / lowering base 310. In this state, even if the chemical solution bottle 2 or the like is placed on the placement plate 311, no force acts on the load cell 314. In this case, if the holding piece 321 is also supported by the support base, no force acts on the load cell 314 even if the chemical solution bottle 2 or the like is placed on the holding piece 321. That is, the weight is not detected unnecessarily, and the cause of the failure of the load cell 314 can be eliminated.

  As shown in FIG. 19, the air supply unit 61 includes a lift plate 72 that moves up and down between a connection position and a separation position by driving a lift motor 71 and rotating a cam 71 a provided on the rotation shaft thereof. . An air tube 73 a extending from the pump 73 is connected to the elevating plate 72. The air tube 73a is connected to the second nozzle 52a by raising the elevating plate 72 to the connection position. Then, by driving the pump 73, air is supplied from the second nozzle 52 a through the air tube 220 into the chemical liquid bottle 2, and the stored chemical liquid is forcibly poured out from the first nozzle 51 by the air pressure. Let In addition, a separate opening / closing valve is provided at a predetermined position (for example, a lower end opening facing the air tube 73a) of the first nozzle 52a, and the air tube 73a is connected by the rising of the lifting plate 72, and the lifting plate 72 becomes the opening / closing valve. The on-off valve may be opened by contact, and the connection of the air tube 73a is released by the lowering of the elevating plate 72, and the elevating plate 72 is separated from the on-off valve and the on-off valve is closed.

(1-6. Dilution water injection part 7)
As shown in FIG. 22, the dilution water injecting unit 7 is for injecting cleaning water accommodated in a dilution water tank (not shown) provided on the lower side of the apparatus body 1 into the patient bottle 6. is there. The dilution water injection part 7 includes an injection tube 74, a swing support part 75, and a swing arm 76 provided on the swing support part 75 so as to be rotatable about a support shaft 76a. The injection tube 74 is inserted into a diluting water tank provided at one end on the lower side of the apparatus main body 1, passes through the rotating arm 76 from the swing support portion 75, and has the other end on the lower surface of the distal end of the rotating arm 76. The injection port 76b is located. The swing support portion 75 is provided with a first tube pump 77 and a rotation motor 78. The first tube pump 77 acts on the injection tube 74 and discharges the cleaning water stored in the dilution water tank from the injection port 76 b on the distal end side of the rotating arm 76. The rotation motor 78 rotates the rotation arm 76 through the gears 78a and 78b by driving. The rotation range of the rotation arm 76 is detected by the sensor 76c, and is positioned at the water pouring position and the retreat position. A second pinch valve 79 is provided on the distal end side of the rotating arm 76 so as to be able to block the flow of cleaning water that passes through the injection tube 74 in pressure contact therewith. The second pinch valve 79 is controlled to be opened and closed by a drive motor and a cam (not shown).

(1-7. Nozzle cleaning unit 8)
As shown in FIG. 23, the nozzle cleaning unit 8 includes a cleaning dish 80 attached to a support plate (not shown) provided in the apparatus main body 1 so as to be movable up and down. The washing dish 80 has a substantially inverted conical shape, and a waste water port 81 is formed at the center of the bottom surface, and a waste water tube 82 extending to the waste liquid recovery tank 22 is connected thereto. In addition, a cleaning nozzle 83 and an air supply nozzle 84 are connected to the cleaning dish 80 through through holes 80a and 80b formed at two locations around the waste water outlet 81, respectively. A vertical movement motor 85, a second tube pump 86, and a compressor 87 are attached to the support plate 25. A cam 85a is integrated with the rotary shaft of the vertical movement motor 85, and the washing dish 80 can be moved up and down via the cam 85a. One end of the second tube pump 86 acts on the tube 18a inserted in the cleaning water tank 18, and the cleaning water stored in the cleaning water tank 18 is ejected from the cleaning nozzle 83 through the tube 18a. The compressor 87 ejects air from the air supply nozzle 84 via the tube 87a.

(1-8. Control device 9)
As illustrated in FIG. 24, the control device 9 includes a control unit 88 and a storage unit 89. As will be described later, the control unit 88 refers to the data stored in the storage unit 89 on the basis of prescription data input from the server 90 via a LAN or the like and input signals from the sensors. By driving and controlling the components and rotating the annular support 26, the chemical liquid bottle 2 attached to the bottle support 3 is rotated, the chemical liquid bottle 2 is rotated to agitate the stored chemical liquid, and the chemical liquid bottle 2 is used for the patient. A series of dispensing processes such as pouring the chemical solution into the bottle 6, diluting the chemical solution with dilution water, washing the first nozzle 51 a, and drying are controlled.

(2. Operation)
Next, the operation of the dispensing apparatus having the above configuration will be described.

  First, the plug member 218 is attached to the mouth of the chemical liquid bottle 2. That is, the air tube 220 is inserted from the mouth of the chemical liquid bottle 2 and covered with the stopper 219, and the mouth is disposed in the recess 224 of the stopper 219. Then, the bottle stopper 227 is slid, and the stopper member 218 is fixed to the chemical liquid bottle 2 by the pressing portion 229. In this way, the air tube 220 is inserted into the chemical liquid bottle 2, the mouth is covered with the stopper 219, and the bottle stopper 227 is simply slid to attach the stopper member 218 to the chemical bottle 2. It can be carried out.

  After the plug member 218 is mounted, the barcode attached to the outer peripheral surface of the chemical liquid bottle 2 is read with a barcode reader. As a result, the data stored in the storage unit 89 is referred to, and information on the corresponding chemical solution (name of the chemical solution, code number, etc., hereinafter referred to as chemical solution information) is called and written in the RFID 225.

  Subsequently, the first shutter 165a is slid to expose the detachable space 163. By sliding the first shutter 165a, it is possible to secure a wide area that opens not only to the front side of the apparatus main body 161 but also to the side, and allows easy access to the detachable space 163. This is only when the chemical bottle 2 supported by the rotation support portion 168, the lock mechanism 186, the moving member 253, the second pressing member 254, etc. are arranged above the annular support 167 and the chemical bottle 2 is replaced. This is because the rotation support portion 168 is rotated to move the chemical liquid bottle 2 to the attachment / detachment space 163 below the annular support 167. Therefore, in addition to the attaching / detaching operation of the chemical liquid bottle 2 described below, cleaning of the attaching / detaching space 163, other maintenance, and the like can be performed smoothly.

  And the chemical | medical solution bottle 2 is each mounted | worn to each rotation support part 168 of the cyclic | annular support body 167 in the state which exposed the attachment / detachment space 163. FIG. In mounting the chemical liquid bottle 2, the lock member 204 is actuated to bring the rotation unit 171 into the unlocked state, and then the rotation drive unit 4 is moved (the second motor 189 is driven to raise the first motor 188. ), The intermediate gear 200 of the rotation drive unit 4 is engaged with the driven gear 176 of the rotation support unit 168. Then, by driving the first motor 188, the first drive gear 199 is rotated and the driven gear 176 is rotated via the intermediate gear 200. Thereby, the rotation part 171 of the rotation support part 168 rotates from the attachment / detachment preparation position to the attachment / detachment position.

  If the rotation part 171 rotates to the attachment / detachment position, the chemical solution bottle 2 to which the plug member 218 is attached is attached. At this time, the storage unit 89 stores the chemical information stored in the chemical bottle 2 to be attached and the attachment position ID of the rotation support unit 168 of the rotation unit 171 located at the attachment / detachment position. The

  In this way, when the mounting operation of the chemical liquid bottle 2 is completed, the dispensing process is started as follows.

  That is, as shown in FIG. 25, when the prescription data is received from the server 90 (step S1), the medicinal solution bottle 2 filled with the medicinal solution (the first medicinal solution when there are a plurality of items) is specified (step S1). S2). In this case, when the chemical liquid bottle 2 is mounted on each rotation support portion 168 of the bottle support portion 3 in advance, the chemical solution to be stored and the mounted rotation support portion 168 are associated with each other in advance. This is performed based on the data stored in the storage unit 89.

  If the chemical solution bottle 2 is specified, it is determined whether or not stirring is necessary before the contained chemical solution is dispensed (step S3). This determination uses data stored in the storage unit 89 in advance as information (chemical solution information) regarding the chemical solution stored in the chemical solution bottle 2. If it is determined that the agitation is necessary, the rotation support portion 168 mounted with the corresponding chemical liquid bottle 2 is positioned at the attachment / detachment preparation position by driving the motor to rotate the annular support 167 (step S4). ). Then, by moving the second shutter 165b to the open position and driving the first motor 188 of the rotation drive unit 4, the drive gear 58 is advanced and meshed with the driven gear unit 49 of the rotation support unit 168. (Step S5).

  Subsequently, by driving the second motor 189, the rotation support portion 168 is rotated, and the chemical liquid bottle 2 attached thereto is moved between the attachment / detachment preparation position and the attachment / detachment position (step S6). In this case, the rotation direction of the chemical liquid bottle 2 is the inside of the chemical liquid bottle 2 arranged on substantially the same circumference, that is, a dead space where no parts are arranged. Therefore, the chemical solution in the chemical solution bottle 2 can be agitated without increasing the size of the apparatus. In addition, since the chemical bottle 2 can be rotated within a range of approximately 180 degrees between the attachment / detachment preparation position turned upside down and the attachment / detachment position with the mouth facing upward, It is possible to sufficiently stir. In this case, when the chemical liquid bottle 2 rotates to the attachment / detachment position, the tip portion of the air tube 220 is immersed in the chemical liquid. Therefore, if the check valve 300 is not attached to the tip of the air tube 220, it is not connected to a compressor or the like and gas cannot be supplied. Therefore, the chemical solution enters the air tube 220. . And when the chemical | medical solution bottle 2 rotates upside down, there exists a possibility that the chemical | medical solution which infiltrated in the air tube 220 may be discharged | emitted as it is. However, a check valve 300 is attached to the air tube 220. For this reason, a chemical | medical solution does not penetrate | invade in the air tube 220 by the said series of rotation operation | movement. The check valve 300 is provided not at the middle of the air tube 220 but at the tip. For this reason, the chemical liquid does not remain in the air tube 220, and the check valve 300 cannot be opened by the chemical liquid in the air tube 220. Moreover, even if the chemical solution adhering to the surface of the check valve 300 is solidified, only a thin film is formed, and the slit 300c can be easily opened by increasing the internal pressure. Therefore, it is possible to prevent the occurrence of a problem that the chemical liquid leaks out from the chemical liquid bottle 2 and contaminates the surroundings, or remains in the air tube 220 and solidifies, so that it cannot be poured out.

  When the chemical liquid in the chemical liquid bottle 2 is agitated, in the state where the chemical liquid bottle 2 is positioned at the attachment / detachment preparation position, the drive motor 32 is further driven to rotate the annular support 26 and the corresponding chemical liquid bottle 2 is poured out. Position to the position (step S7). When the patient bottle 6 is placed in the recess 311a of the placement plate 311, the motor is driven to bring the holding piece 321 closer to a predetermined position, and thereafter the patient bottle 6 using the biasing force of the spring. Is held at the dispensing standby position (step S8). Since the patient bottle 6 is placed on the placement plate 311 and then held between the holding pieces 321, the patient bottle 6 can always be held at the same position without being tilted or displaced.

  When the patient bottle 6 is positioned at the dispensing standby position, the bottle placing portion 60 on which the patient bottle 6 is placed is raised, and the upper opening thereof is located in the vicinity of the fourth tube connector 252. At this time, it is determined whether or not the weight detected by the load cell 314 exceeds a preset weight. For example, when the patient bottle 6 is placed not on the placement plate 311 but on the holding piece 321, the patient bottle 6 abuts against a member other than the second guide portion 242 and an excessive load is applied to the load cell 314. May cause damage. For this reason, if the weight detected by the load cell 314 exceeds a preset weight, the lifting of the elevator 310 is stopped and an error is notified.

  In the state where the patient bottle 6 is appropriately held by the sandwiching pieces 321, the bottle placement unit 60 is raised, so that the mouth of the patient bottle 6 is detected by the detection sensor provided in the second guide unit 242. Then, the raising of the lifting platform 310 is stopped. And a chemical | medical solution pouring process is started (step S9).

  In the chemical solution dispensing process, as shown in FIG. 26, the slide table 256 is advanced by driving the slide motor 255, and the second pressing member 254 is positioned at a predetermined position with respect to the rotation support portion 168 (step). S21). At this time, the rotation shaft of the rotation motor 270 provided on the second pressing member 254 side is positioned in the positioning recess 224 formed in the spacer 178 on the rotation support portion 168 side. Further, the air tube 220 enters the guide recess 238 of the plug 219 and is connected to the communication hole 234. Further, the pressing plate 269 presses the pressure receiving piece 239 and rotates it to release the second tube 236 from the crushed state.

  Next, the rotation motor 270 is driven in the reverse direction, the cam 271 is rotated in the reverse direction, and the pressure receiving portion 248 is pressed by the pressing roller 273, thereby rotating the first link plate 246. As a result, the pressure receiving roller 249 is pressed by the lower edge of the first link plate 246 to rotate the second link plate 247, and the first pressing member 223 integrated with the second link plate 247 becomes the first tube 221. Separate from. Then, by maintaining this state, the chemical solution in the chemical solution bottle 2 is continuously supplied to the patient bottle 6 via the first tube 221 (step S22). The supply amount of the chemical liquid to the patient bottle 6 is performed based on the weight detected by the bottle mounting unit 60 until the first set value before reaching the desired supply amount (dispensing value) (step S23). .

  At this time, the supply of air into the chemical liquid bottle 2 may be performed so that the inside of the chemical bottle 2 is maintained at a constant pressure based on a detection signal from the pressure sensor 266 or the like. The internal pressure may be gradually increased so that the discharge amount does not decrease with the decrease.

  When the supply amount of the chemical liquid to the patient bottle 6 reaches the first set value (step S23: YES), the first pressing member 223 is brought into contact with and separated from the first tube 221. That is, the opening and closing of the flow path of the first tube 221 is repeated (step S24). Thereby, a chemical | medical solution is intermittently supplied to the bottle 6 for patients through the 1st tube 221. FIG. Then, the opening / closing operation of the first tube 221 is performed until the supply amount of the chemical liquid to the patient bottle 6 reaches the second set value (step S25).

  Incidentally, the relationship between the opening time of the first tube and the discharge amount of the chemical solution is stored in advance in the data table. Here, the relationship between the opening time of the first tube and the discharge amount of the chemical solution is stored for water having a viscosity lower than that of the chemical solution. And if a chemical | medical solution is supplied to the bottle 6 for patients according to this data table, since it is based on the water which flows most easily, a chemical | medical solution does not overflow from the bottle 6 for patients. However, a data table in which the relationship between the opening time of the first tube and the discharge amount of the chemical liquid is set according to the difference in the viscosity of the chemical liquid to be supplied may be stored. This is preferable in that the amount of the chemical solution supplied to the patient bottle 6 can be accurately set to a desired value.

  Moreover, the opening / closing timing (ratio of opening time and closing time) of the first tube 221 can be set freely. Further, the opening / closing timing can be freely changed until the supply amount of the chemical solution reaches the second set value. For example, the setting method is free, such as increasing the opening time until just before reaching the second set value and then shortening the opening time until reaching the second set value.

  Subsequently, when the supply amount of the chemical liquid to the patient bottle 6 reaches the second set value (step S25: YES), the rotation motor 270 is driven to rotate forward and the cam 271 is rotated forward (step S26). As a result, the second link plate 247 is returned to its original position by the urging force of the spring 250, and the first tube 221 is once pressed by the first pressing member 223 to block the flow path. When the cam 271 further rotates forward, the pressing roller 273 integrated therewith rotates and rolls while pressing against the first tube 221 from the upper side toward the lower side. As a result, the chemical liquid that has remained in the first tube 221 on the lower side of the position pressed by the pressing roller 273 is pumped downstream. In the middle of this rolling, the pressing portion 274 formed on the cam 271 contacts the pressing receiving roller 249 of the second link plate 247 to rotate the first link plate 246. As a result, the first pressing member 223 is temporarily separated from the first tube 221, and a certain amount of the liquid medicine thus pumped flows down to the patient bottle 6 via the fourth tube connector 252.

  Thereafter, the forward rotation of the cam 271 is continued until reaching the third set value that is closer to the dispense value than the second set value (step S27), and the medicinal solution is dispensed into the patient bottle by a certain amount. If the detected value becomes the third set value (step S27: YES), the rotation speed is suppressed by reducing the voltage applied to the rotation motor 270 (step S28). This is to eliminate variations in detection values caused by dispensing the drug solution into the patient bottle at a relatively high speed even intermittently. In a state where the detection value is stable, the chemical solution is supplied by a certain amount, and when the dispensing value is reached (step S29), the driving of the rotation motor 270 is stopped (step S30).

  If the chemical solution dispensing process is completed, it is determined whether or not the dilution water needs to be poured (step S10). If it is determined that dilution water injection is necessary, the dilution water injection process is started (step S11).

  In the dilution water injection process, as shown in FIG. 27, the mounting plate 64 is lowered to place the chemical bottle 2 at the dilution water injection position based on the detection signal from the lift position detection sensor 70 (step S31). And the rotation arm 76 of the dilution water injection | pouring part 7 is rotated, and the injection port 76b of the injection tube 74 is located above the opening part 46 of the bottle 6 for patients (step S32). Then, a desired amount of dilution water is injected based on the prescription data in the same manner as in the case of the chemical solution (step S33).

  When the chemical solution dispensing process and the appropriately performed dilution water injection process are completed, the drive motor 32 is further driven to rotate the annular support 167, and the corresponding chemical solution bottle 2 is moved to the cleaning position (step S12). The process is started (step S13).

  In the cleaning process, as shown in FIG. 28, since the lower end opening of the first nozzle 51 is located above the cleaning nozzle 83, the second tube pump 86 is driven to supply the cleaning water in the cleaning water tank 18. It ejects from the cleaning nozzle 83 (step S41). Thereby, the lower end portion of the first nozzle 51 is washed. The waste water after washing flows to the center of the bottom by the washing dish 80 and is collected from the waste water outlet 81 to the waste water tank through the waste water tube 82.

  When the cleaning of the first nozzle 51 is completed, the drive motor 32 is further driven to rotate the annular support 26, and the chemical liquid bottle 2 is moved to the drying position (step S42). Then, the compressor 87 is driven to blow air to the first nozzle 51 via the air supply nozzle 84, and the attached cleaning water is dried (step S43).

  In the same manner, the dispensing process for each chemical solution included in the prescription data is executed. When the dispensing process for all the chemicals included in the prescription data is completed, the same process is performed for the next prescription data.

  As described above, according to the dispensing device according to the embodiment, the space at the central portion surrounded by the attached chemical liquid bottle 2 that was originally a dead space is used for the stirring of the chemical liquid in the chemical liquid bottle 2. It can be used effectively as a moving area. For this reason, a chemical | medical solution can be stirred, without enlarging an apparatus. Further, since the chemical liquid bottle itself is rotated, the chemical liquid can be sufficiently stirred. In addition, since the rotation drive unit 4 need only be provided at one place, the structure is not complicated and the cost is not increased.

  In addition, although the said chemical | medical solution bottle 2 which accommodated the chemical | medical solution was demonstrated in the said embodiment, even if it is a liquid bottle which accommodated liquids other than chemical | medical solutions, such as syrup, the air tube which equip | installed the check valve 300 at the front-end | tip similarly. 220 can be employed.

DESCRIPTION OF SYMBOLS 1 ... Apparatus main body 2 ... Chemical solution bottle 3 ... Bottle support part 4 ... Rotation drive part 5 ... Chemical solution extraction part 6 ... Patient's bottle 7 ... Dilution water injection | pouring part 8 ... Nozzle washing | cleaning part 9 ... Control apparatus 18a ... Tube 39 ... Rotating part 45 ... Bottle mounting part 49 ... Driven gear part 52a ... Tube 57 ... Advancing / retracting ball screw 58 ... Driving gear part 60 ... Bottle mounting part 61 ... Air supply part 70 ... Lifting position detection sensor 71 ... Lifting motor 71a ... Cam 72 ... Elevating plate 73 ... Pump 73a ... Air tube 74 ... Injection tube 75 ... Swing support 76 ... Rotating arm 76a ... Support shaft 76b ... Injection port 76c ... Sensor 78 ... Rotating motor 78a, 78b ... Gear 79 ... First 2-pinch valve 80 ... washing plate 80a, 80b ... through hole 81 ... waste water port 82 ... waste water tube 83 ... washing nozzle 84 ... air supply nozzle 85 ... moving up and down Motor 85a ... cam 86 ... second tube pump 87 ... compressor 87a ... tube 88 ... control unit 89 ... storage unit 90 ... server 162 ... display 163 ... detachable space 164 ... dispensing space 167 ... annular support 168 ... rotation support 169: Supporting base 170 ... Spindle 171 ... Rotating part 172 ... Supporting body 172a ... Through hole 173 ... Groove 174 ... Side wall part 175 ... Mounting part 176 ... Driven gear 177 ... Rotating plate 178 ... Spacer 179a, 179b ... Arm Portion 180 ... Intermediate walls 181a, 181b ... Both side walls 182 ... Ceiling wall 183 ... Guide portion 184 ... Locking hole 186 ... Lock mechanism 187 ... Rotating drive body 188 ... First motor portion 189 ... Second motor portion 190 ... Bottom plate 191 ... guide frame 192 ... guide shaft 193 ... elevating block 194 ... front plate 195 ... side plate 196 ... top plate 197 ... Cover body 200 ... Intermediate gear 203 ... Rack part 204 ... Lock member 205 ... Actuation member 206 ... Lock body 207 ... Rod part 208 ... Rod 209 ... Connecting rod 210 ... Actuation body 211 ... Actuation bar 212 ... Actuation motor 213 ... Magnetic sensor 216 ... drive gear 217 ... mounting plate 218 ... plug body member 219 ... plug body 210 ... actuation body 211 ... actuation bar 212 ... actuation motor 213 ... magnetic sensor 218 ... plug body member 219 ... plug body 220 ... air tube 220a ... opening 220b ... annular groove 222 ... guide member 222a ... support plate 224 ... concave 226 ... ridge 227 ... bottle fastener 228 ... side wall part 229 ... holding part 230 ... groove part 231 ... latch member 232 ... pressing part 233 ... locking claw 238 ... guide Concave portion 239 ... Press receiving piece 239a ... Shaft portion 240 ... Guide receiving portion 243 ... Curved surface 44 ... groove-like portion 245 ... press receiving surface 246a ... support shaft 247a ... support shaft 248 ... press receiving portion 250 ... spring 251 ... pressing protrusion 253 ... moving member 255 ... sliding motor 256 ... slide table 257 ... rack 258 ... slide Position detection sensor 259 ... Holding block 260 ... Air supply pipe 261 ... Nozzle portion 261a ... Lower edge 260 ... Air supply pipe 262 ... Air supply source 263 ... Switch valve 264 ... Needle valve 265 ... Open / close valve 266 ... Pressure sensor 267 ... Holding plate 268 ... Substrate 269 ... Pressing plate 270 ... Rotating motor 271 ... Cam 272 ... Pressing protrusion 273 ... Pressing roller 274 ... Pressing part 275 ... Auxiliary guide part 276 ... Side face part 277 ... Bottom face part 300 ... Check valve 300a ... Gutter part 300b ... Details 300c ... Slit 310 ... Lifting platform 311 ... Placement plate 312 ... Elevating mechanism 313 ... Elevating arm 314 ... Load cell 315 ... Elevating motor 316 ... Pulley 317 ... Belt 318 ... Elevating ball screw 319 ... Guide shaft 320 ... Pedestal 321 ... Nipping piece 322 ... Guide bar 323 ... Guide plate 324 ... Interlocking gear 400 ... cap member (holding member)
401 ... 1st inside diameter part 402 ... 2nd inside diameter part 403 ... 3rd inside diameter part 404 ... Step part

Claims (5)

A rotation support unit that tiltably supports a liquid bottle capable of storing liquid;
An air tube for supplying gas from the outside to the inside of the liquid bottle supported by the rotation support part;
A discharge tube for discharging the liquid contained in the liquid bottle to the outside by the gas supplied from the air tube into the liquid bottle;
With
The tip of the air tube located in the liquid bottle is at a position higher than the liquid level of the liquid when gas is supplied from the air tube into the liquid bottle.
A liquid discharge mechanism, wherein a check valve for preventing liquid from flowing in is attached to a tip of the air tube.   The liquid discharge mechanism according to claim 1, wherein a holding member that prevents the check valve from dropping off is attached to a tip of the air tube.   The holding member has a cylindrical shape, and the peripheral wall has an inner peripheral surface and an outer peripheral surface communicating with each other, and an opening for discharging the liquid remaining by tilting the liquid bottle from the holding member is formed. The liquid discharge mechanism according to claim 2. A plurality of the liquid discharge mechanisms according to any one of claims 1 to 3,
The dispensing device according to claim 1, wherein a plurality of the rotation support portions are arranged along a circumferential direction of the annular region.   The dispensing device according to claim 4, wherein the rotation support part supports the liquid bottle so as to be tiltable toward the inner side of the annular region.