JP5648253B6 - Liquid supply device - Google Patents

Description

  The present invention relates to a liquid medicine supply device, and more particularly to a liquid medicine supply apparatus for supplying liquid medicine from a liquid medicine bottle containing a liquid medicine to a medication bottle.

  Conventionally, dispensing pharmacies and the like have been used to dispense liquid medicines that are liquid medicines. According to a prescription for the patient, one or more kinds of liquid medicines are sequentially injected into the medication bottles in predetermined amounts, and necessary excipients are injected to dispense liquid medicines.

  For example, Japanese Unexamined Patent Application Publication No. 2009-112673 (Patent Document 1) discloses a conventional technique related to a liquid medicine supply device for dispensing liquid medicine. In the above-mentioned document, there is proposed a liquid medicine supply device that has a rotating unit that rotates while holding a plurality of liquid medicine bottles, and that causes the liquid medicine bottle to turn over by rotating the rotating unit 180 degrees.

JP 2009-112673 A

  When dispensing a suspension liquid, it is required by the dispensing guidelines to stir the liquid in the liquid bottle and then supply it to the medication bottle. In the liquid medicine supply device described in the above document, the liquid medicine stored in the liquid medicine bottle is agitated by rotating the liquid medicine bottle by 180 degrees using the rotating unit and tumbling. For this reason, there is a problem that the configuration is complicated and the liquid medicine supply device is enlarged.

  The present invention has been made in view of the above problems, and a main object thereof is to provide a liquid medicine supply device capable of stirring a liquid medicine contained in a liquid medicine bottle with a simple configuration in the apparatus. .

  A liquid medicine supply device according to the present invention is a liquid medicine supply apparatus for supplying liquid medicine from a liquid medicine bottle containing a liquid medicine to a prescription bottle, and generates a rotational force with a holder that holds the bottom of the liquid medicine bottle. And a rotation driving unit that rotates the holder and the liquid medicine bottle held by the holder around a rotation axis along the center line of the liquid medicine bottle.

  Preferably, the liquid medicine supply device includes a pipe portion through which liquid medicine flowing out from the liquid medicine bottle passes, and the pipe section is arranged inside the liquid medicine bottle and extends from the opening of the liquid medicine bottle toward the bottom. .

  Preferably, in the liquid medicine supply device, the holder holds the liquid medicine bottle with the center line away from the rotation axis.

  Preferably, in the liquid medicine supply device, the rotation driving unit generates rotational force in both forward and reverse directions, rotates the liquid medicine bottle in the forward direction, and then rotates the liquid medicine bottle in the reverse direction opposite to the forward direction.

  Preferably, in the liquid medicine supply apparatus, the liquid medicine is supplied to the medication bottle after the rotation driving unit rotates the liquid medicine bottle.

  According to the liquid medicine supply device of the present invention, the liquid medicine contained in the liquid medicine bottle can be stirred in the apparatus with a simple configuration.

It is a perspective view which shows the structure of the liquid medicine supply apparatus of one embodiment of this invention. It is a front view of the liquid medicine supply apparatus shown in FIG. It is sectional drawing of the liquid medicine supply apparatus which follows the III-III line | wire shown in FIG. It is sectional drawing of the liquid medicine supply apparatus which follows the IV-IV line | wire shown in FIG. It is sectional drawing of the liquid medicine supply apparatus which follows the VV line shown in FIG. It is a perspective view which shows the structure of the stirring unit which stirs the liquid medicine in a liquid medicine bottle. It is a side view of the stirring unit shown in FIG. It is sectional drawing of the stirring unit which follows the VIII-VIII line shown in FIG. It is a disassembled perspective view of a stirring unit. It is a disassembled perspective view of the attachment structure which attaches a tube to a liquid medicine bottle. It is the schematic which shows the whole structure of a tube. It is a flowchart which shows an example of the control method of a liquid medicine supply apparatus. It is the schematic which shows the modification of a stirring apparatus. It is the schematic which shows the other modification of a stirring apparatus.

  Embodiments of the present invention will be described below with reference to the drawings. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

  FIG. 1 is a perspective view showing a configuration of a liquid medicine supply device 1 according to an embodiment of the present invention. FIG. 2 is a front view of the liquid medicine supply apparatus 1 shown in FIG. FIG. 3 is a cross-sectional view of the liquid medicine supply device 1 taken along line III-III shown in FIG. FIG. 4 is a cross-sectional view of the liquid medicine supply device 1 along the line IV-IV shown in FIG. FIG. 5 is a cross-sectional view of the liquid medicine supply apparatus 1 along the line VV shown in FIG. The liquid medicine supply device 1 according to the present embodiment is used for dispensing the liquid medicine 5 which is a liquid medicine from the liquid medicine bottle 23 containing the liquid medicine 5 to the medication bottle 2 in accordance with a prescription for the patient. It is done.

  The liquid medicine supply device 1 includes a liquid medicine supply means 3 for supplying the liquid medicine 5 from the liquid medicine bottle 23 to the prescription bottle 2 and a weight detection means 4 for detecting the weight of the liquid medicine 5 accommodated in the prescription bottle 2. Prepare. From the weight of the liquid medicine 5 detected by the weight detection means 4 and the specific gravity of the liquid medicine 5, the volume of the liquid medicine 5 supplied to the prescription bottle 2 is calculated. The liquid medicine supply means 3 is controlled so that a predetermined volume of liquid medicine 5 according to the prescription is supplied to the prescription bottle 2. The liquid medicine supply means 3 and the weight detection means 4 are provided in the housing 6. The housing | casing 6 is formed in a rectangular parallelepiped shape, and is installed in the horizontal installation surface in the standing state.

  A support frame 8 is provided inside the housing 6. The support frame 8 is disposed between the bottom plate 9 of the housing 6 and the top plate 10 of the housing 6, and specifically is disposed near the top plate 10 of the housing 6. The internal space of the housing 6 is partitioned by the support frame 8 into an upper space 11 above the support frame 8 and a lower space 12 below the support frame 8. A touch panel 14 and printers 17 a and 17 b are disposed on the front surface portion 13 of the housing 6. Further, a lower opening 15 that connects the lower space 12 and the outside of the housing 6 is formed in the front surface portion 13.

  The lower opening 15 is formed between the left and right side portions 16 a and 16 b in the front surface portion 13 of the housing 6. On the upper side of the lower opening 15 between the left and right side portions 16a, 16b, a curved plate-like front cover portion 18 that partitions the lower space 12 and the outside of the housing 6 is disposed. The front cover portion 18 is formed of a transparent material so that the lower space 12 can be visually recognized from the outside on the front side of the housing 6. The front cover portion 18 is attached to one of the left and right side portions 16a and 16b via a hinge, and is provided so as to be rotatable around the axis of the hinge. As a result, the front cover portion 18 can be opened and closed. Yes.

  The liquid medicine supply means 3 is disposed in the lower space 12 and has a rotating drum 21 which is a rotating body provided so as to be rotatable around an axis L1 perpendicular to the support frame 8 (hereinafter referred to as “drum axis”), and a support And a drum rotating motor 22 that is mounted on the upper surface of the frame 8 and rotates the rotating drum 21 around the drum axis L1 with respect to the support frame 8. The liquid medicine supply means 3 is also provided on the rotary drum 21 and drives each pump 24 with a plurality of pumps 24 for transferring liquid medicine from a plurality of liquid medicine bottles 23 containing the liquid medicine 5 to the prescription bottle 2. And a pump drive unit 25. Each pump 24 may be a tube pump.

  The rotary drum 21 includes a pump holder 31 that holds each pump 24 and a liquid bottle that holds each liquid bottle 23 in an upright state so that an opening 23A (see FIG. 10 described later) opens upward. Holding body 32. The liquid medicine bottle holder 32 is provided below the pump holder 31 and is formed in an annular flat plate shape in plan view. Each pump 24 is arranged in the pump holding body 31 at intervals in the circumferential direction centered on the drum axis L <b> 1 (hereinafter referred to as “drum circumferential direction”). In the liquid medicine bottle holder 32, each liquid medicine bottle 23 is arranged at intervals in the drum circumferential direction.

  In the present embodiment, the number of liquid medicine bottles 23 and pumps 24 mounted on the rotating drum 21 can be arbitrarily changed according to the purpose. Different liquid medications 5 may be accommodated in each of the plurality of liquid medication bottles 23, and the same kind of liquid medication 5 having a high prescription frequency may be accommodated in the plurality of liquid medication bottles 23. The bottle 23 may contain excipients such as normal water and simple syrup.

  A pump drive unit 25 for selectively driving each pump 24 includes a fixed portion 37 fixed to the support frame 8 and a front-rear direction with respect to the fixed portion 37 (double arrows shown in FIGS. 4 and 5). A moving part 38 provided movably in the direction (A) and a fixed part 37, a moving motor 39 for moving the moving part 38 back and forth with respect to the fixed part 37, and a fixed to the moving part 38, a pump And a pump driving motor 40 for driving the motor 24. A stepping motor may be used as the pump driving motor 40.

  A connecting member 42 is fixed to the tip of a drive shaft 41 that is rotationally driven by the pump drive motor 40. A connected member 44 connected to the connecting member 42 is fixed to the rotating shaft 43 of the rotor of each pump 24. By connecting the connecting member 42 and the connected member 44, the rotation of the pump driving motor 40 is transmitted to the pump 24. The pump 24 is configured to be driven for each pump 24 in conjunction with the intermittent drive of the drum rotation motor 22. The supply speed of the liquid medication 5 to the medication bottle 2 increases as the rotational speed of the pump drive motor 40 increases.

  By driving the moving motor 39, the pump driving motor 40 moves in the front-rear direction. A connected state in which the connecting member 42 of the pump driving motor 40 is connected to the connected member 44 of the pump 24 by the movement of the pump driving motor 40, and a disconnected state in which the connecting member 42 is not connected to the connected member 44. And can be switched.

  For example, the connecting member 42 and the connected member 44 can be connected by advancing the moving part 38 by driving the moving motor 39. In addition, the connection between the connecting member 42 and the connected member 44 can be released by retracting the moving portion 38 by driving the moving motor 39. The rotating drum 21 can rotate with respect to the support frame 8 in the disconnected state.

  By driving the drum rotating motor 22 in the disconnected state, the connected member 44 of the specific pump 24 selected based on the prescription information input to the liquid medicine supply device 1 becomes the connecting member of the pump driving motor 40. The rotating drum 21 is rotated to a position facing the 42, and is switched to a connected state after the rotation. Thereby, the selected specific pump 24 can be driven, and the liquid medicine 5 supplied from the desired liquid medicine bottle 23 can be dispensed into the prescription bottle 2. In addition, although the connection member 42 and the to-be-connected member 44 are both comprised with the gear, as long as motive power can be transmitted, what kind of structure may be sufficient.

  A ring member 27 disposed horizontally on the same axis as the drum axis L1 is disposed on the upper end portion 26 of the rotary drum 21 so as to be rotatable around the drum axis L1. Three or more support members 28 that support the ring member 27 are provided on the outer peripheral side of the ring member 27. The support members 28 are arranged at equal intervals in the drum circumferential direction.

  Each support member 28 is provided to be rotatable relative to the support frame 8 around an axis parallel to the drum axis L1. On the outer peripheral surface of each flat cylindrical support member 28, a recess 29 is formed over the entire circumference. On the outer periphery of the ring member 27, an annular ridge 30 is formed over the entire periphery. The ridges 30 of the ring member 27 are fitted into the ridges 29 of the respective support members 28. The ring member 27 and the support member 28 are provided such that they can rotate relative to each other.

  The drum rotation motor 22 is fixed to the support frame 8. A driving gear (not shown) is fixed to the rotating shaft of the drum rotating motor 22. A driven gear 33 that meshes with the driving gear is fixed to the upper end portion 26 of the rotating drum 21. The driven gear 33 is formed in an annular thin plate shape and is fixed to the lower surface of the ring member 27. The rotation of the drum rotating motor 22 is transmitted to the ring member 27 through the driving gear and the driven gear 33, whereby the ring member 27 and the rotating drum 21 to which the ring member is fixed rotate as a unit. With such a configuration, the rotary drum 21 can be smoothly rotated with respect to the support frame 8.

  The drum rotation motor 22 includes a plurality of liquid medicine bottles 23 mounted on the rotary drum 21, pumps 24 and supply nozzles 36 provided corresponding to the plurality of liquid medicine bottles 23, and one end of the liquid medicine bottle 23. The tube 34, which will be described later, which is disposed inside the tube and whose other end is attached to the supply nozzle 36, is integrally rotated in the horizontal direction.

  The supply nozzle 36 is mounted on the same circumference of the outer periphery of a nozzle mounting plate 53 that is an annular flat plate provided at the lower end of the pump holder 31. The supply nozzles 36 are arranged on the nozzle mounting plate 53 at equal intervals in the drum circumferential direction on a virtual circle centered on the drum axis L1. The supply nozzle 36 is attached to the nozzle attachment plate 53 at a predetermined angle with respect to the drum axis L1. The nozzle mounting plate 53 is disposed above the liquid medicine bottle holder 32. The nozzle mounting plate 53 and the liquid medicine bottle holder 32 are parallel to each other, and are configured to be rotatable around the drum axis L1 on the horizontal plane together with the rotating drum 21.

  The weight detection means 4 is disposed in the lower opening 15. The weight detection means 4 is placed in a state where the electronic balance 45, the casing 46 for housing the electronic balance 45, and the electronic balance 45 are mounted and fixed, and the medication bottle 2 is erected so that the opening 2A opens upward. And a medication bottle holder 47 for holding. The electronic balance 45 detects the weight of the liquid medicine 5 supplied to the medication bottle 2. When the weight of the liquid medicine 5 reaches a predetermined value, the liquid medicine supply means 3 stops driving the pump 24 and stops supplying the liquid medicine 5 to the prescription bottle 2. The electronic balance 45 may be of any type such as a tuning fork type, a load cell type, or an electromagnetic type. The casing 46 is provided in a lower portion between the left and right side portions 16 a and 16 b in the front surface portion 13 of the housing 6. The medication bottle holder 47 includes a placement table 48 on which the medication bottle 2 is placed, and a holder 49 that is provided on the placement table 48 and holds the medication bottle 2.

  The weight detection means 4 is moved up and down by an elevating device 50 as a drive unit shown in FIG. The lifting device 50 moves the weight detection means 4 in the vertical direction so that it can be positioned at two positions of the initial position and the supply position, and accordingly, is placed on the mounting table 48 of the weight detection means 4. The prepared medication bottle 2 is moved. The initial position is a position for installing the medication bottle 2 on the mounting table 48 of the liquid medicine supply apparatus 1. The supply position is a position for supplying the liquid medicine 5 to the prescription bottle 2 by bringing the prescription bottle 2 and the supply nozzle 36 closer than the initial position. By the elevating device 50, the medication bottle 2 reciprocates between the outside and the inside of the housing 6 of the liquid medicine supply device 1 so as to reciprocate between the initial position and the supply position.

  FIG. 6 is a perspective view showing a configuration of a stirring unit for stirring the liquid medicine 5 in the liquid medicine bottle 23. FIG. 7 is a side view of the stirring unit shown in FIG. FIG. 8 is a cross-sectional view of the stirring unit along the line VIII-VIII shown in FIG. FIG. 9 is an exploded perspective view of the stirring unit. The liquid medicine supply means 3 of the present embodiment includes a stirring device that stirs the liquid medicine 5 accommodated in the liquid medicine bottle 23 inside the housing 6 of the liquid medicine supply apparatus 1. Hereinafter, this stirring device will be described in detail.

  6 to 9 and FIG. 10 to be described later, the liquid medicine bottle holder 32 on which only one liquid medicine bottle 23 is placed is shown with priority given to easy understanding. Further, the liquid medicine supply device 1 includes a plurality of cup fixing portions 76 and 76A and a cup 78 for holding the liquid medicine bottle 23, but the plurality of cup fixing portions 76 and 76A and the cup 78 are shown in FIGS. Etc., only some of them are shown, and not all of them are shown.

  A rotation driving unit 61 that generates a rotational force is disposed below the liquid medicine bottle holder 32. As shown in FIG. 8, the rotation drive unit 61 includes a motor 62 as an example of a power source, and a box 63 that houses the motor 62 therein. A shaft portion 64 that rotates together with the motor 62 is connected to the rotation shaft of the motor 62. The shaft portion 64 is fixed to the motor 62 so as to be rotatable about the rotation shaft L3 integrally with the motor 62. The shaft portion 64 is disposed so as to extend inside and outside the box 63. The shaft portion 64 is disposed so as to penetrate the plate-shaped liquid medicine bottle holding body 32 in the vertical direction, and the rotational force generated by the motor 62 is transmitted from the lower side of the liquid medicine bottle holding body 32 to the upper side of the liquid medicine bottle holding body 32. To communicate.

  A cup 78 is fixed to the shaft portion 64 with various elements to be described later interposed therebetween. The cup 78 functions as a holder that holds the liquid medicine bottle 23. The cup 78 holds the bottom 23B side of the liquid medicine bottle 23 shown in FIG. The cup 78 is formed in a hollow cylindrical shape with a bottom. The liquid medicine bottle 23 is accommodated in the cup 78 so that the bottom 23 </ b> B faces the inner bottom surface of the cup 78. The inner wall surface of the side wall of the cup 78 has a diameter slightly larger than the diameter of the side surface of the liquid medicine bottle 23. Therefore, the side surface of the liquid medicine bottle 23 faces the inner wall surface of the side wall of the cup 78 through a minute gap. A part of the side surface of the liquid medicine bottle 23 may contact the inner wall surface of the side wall of the cup 78.

  Inside the liquid medicine bottle 23, a tube 34 as a pipe portion is disposed. The tube 34 is provided for each of the plurality of liquid medicine bottles 23. The tube 34 is formed of a material having flexibility and elasticity, and its cross section can be deformed by pressing, and is elastically restored by releasing the pressing. The tube 34 may be made of a synthetic resin such as a silicon tube. The tube 34 extends from the opening 23A of the liquid medicine bottle 23 toward the bottom 23B, and is disposed inside the liquid medicine bottle 23 so that one end 34a thereof contacts the inner surface of the bottom 23B of the liquid medicine bottle 23. Yes.

  FIG. 10 is an exploded perspective view of a mounting structure for attaching the tube 34 to the liquid medicine bottle 23. Referring to FIGS. 7, 8 and 10, base member 81 is fixed to opening 23 </ b> A of liquid medicine bottle 23. The base member 81 includes an annular plate-shaped flange portion 81a and a cylindrical sleeve portion 81b protruding from the upper surface of the flange portion 81a. A through-hole 81c that penetrates the disk member is formed at the center of the disk member that forms the end of the sleeve portion 81b. With the base member 81 attached to the opening 23A of the liquid medicine bottle 23, the inside and the outside of the liquid medicine bottle 23 communicate with each other through the through hole 81c. The tube 34 is inserted through the through-hole 81 c so as to penetrate the through-hole 81 c, and is arranged from the outside to the inside of the liquid medicine bottle 23.

  As shown in FIG. 8, the base member 81 is fixed to the opening 23 </ b> A of the liquid medicine bottle 23. A cylindrical spacer 82 made of an elastic material such as silicone rubber is attached to the inner peripheral surface of the sleeve portion 81 b of the base member 81. The base member 81 is an elastically deformable spacer so that the base member 81 can be securely fixed to the opening 23 </ b> A of the liquid medicine bottle 23 even if the base member 81 or the liquid medicine bottle 23 has dimensional variations. 82 is attached to the liquid medicine bottle 23.

  A cover 83 is disposed on the base member 81. The cover 83 is placed on the upper surface of the flange portion 81 a of the base member 81 in a non-fixed state with respect to the base member 81. The cover 83 is formed in a cap shape having a hollow cylindrical wall portion and a disk-shaped ceiling portion that covers the upper end of the wall portion. The lower end of the wall portion is in contact with the upper surface of the base member 81, and the cover 83 is placed on the base member 81. In a state where the cover 83 is placed on the base member 81 fixed to the liquid medicine bottle 23, the cover 83 is provided so as to cover the opening 23A of the liquid medicine bottle 23. A through-hole having a diameter enough to allow the tube 34 to be inserted is formed in the ceiling portion of the cover 83.

  The ceiling portion of the cover 83 is further formed with a recessed portion 84 having a partially recessed upper surface. A positioning member 85 is attached to the tube 34. The positioning member 85 is attached to the tube 34 without obstructing the flow of the liquid medicine 5 flowing through the inside of the tube 34. Further, the positioning member 85 is attached to the tube 34 so that it is difficult to move the tube 34 in the longitudinal direction with respect to the tube 34. The recess 84 and the positioning member 85 are formed in shapes corresponding to each other so that the positioning member 85 fits in the recess 84.

  The positioning member 85 positions the tube 34 to which the positioning member 85 is attached to the liquid medicine bottle 23 by engaging with a recess 84 formed in the cover 83. As shown in FIG. 8, when the positioning member 85 is accommodated in the recess 84 of the cover 83, the one end 34 a of the tube 34 slightly curved in the liquid medicine bottle 23 contacts the bottom 23 B of the liquid medicine bottle 23. As described above, the positioning member 85 positions the tube 34 with respect to the liquid medicine bottle 23.

  Furthermore, a tube fixing portion 86 for fixing the tube 34 outside the liquid medicine bottle 23 is provided. As shown in FIG. 3, the tube fixing portion 86 is fixed to the lower surface side of the nozzle mounting plate 53. A notch 87 is formed in the tube fixing portion 86. The notch 87 is formed in a shape substantially equal to the outer diameter of the tube 34 so that the tube 34 can be held inside the notch 87. 7 and FIG. 8 with the tube 34 inserted into the liquid medicine bottle 23, the tube 34 is held in the notch 87, so that the tube 34 is fixed to the nozzle mounting plate 53. Fixed. The tube 34 is further fixed to the nozzle mounting plate 53 by being fitted into a notch 54 (see FIG. 5) formed in the nozzle mounting plate 53.

  FIG. 11 is a schematic diagram showing the overall configuration of the tube 34. As described above, the open one end 34 a of the tube 34 is inserted into the bottom 23 </ b> B of the liquid medicine bottle 23 and is immersed in the liquid medicine 5 in the liquid medicine bottle 23. The other end 34 b, which is the end opposite to the one end 34 a of the tube 34, is attached to the supply nozzle 36. When the pump 24 described above is a tube pump, an intermediate portion of the tube 34 between the one end 34 a and the other end is inserted into the pump 24 and is detachably gripped by the pump 24.

  The pump 24 is used as a power source for sucking the liquid medicine 5 in the liquid medicine bottle 23 toward the supply nozzle 36. When the liquid medicine 5 is supplied from the liquid medicine bottle 23 to the prescription bottle 2 by driving the pump 24, the liquid medicine 5 that has flowed out of the liquid medicine bottle 23 flows from the one end 34a through the inside of the tube 34, and the supply nozzle It flows into the prescription bottle 2 from the supply port 36 </ b> A having an open end of 36.

  The positioning member 85 described above is attached to the tube 34 at a predetermined distance from the one end 34 a of the tube 34. The positioning member 85 is attached to the tube 34 so that the distance from the one end 34a of the tube 34 to the position of the tube 34 to which the positioning member 85 is attached is kept constant. Thereby, the tube 34 to which the positioning member 85 is attached is prepared, and the tube 34 is surely positioned with respect to the liquid medicine bottle 23 by a simple operation of fitting the positioning member 85 into the recess 84 formed in the cover 83. be able to. The positioning member 85 typically has one end 34a in contact with the bottom 23B of the liquid medicine bottle 23 so that the one end 34a of the tube 34 is surely immersed in the liquid medicine 5 in the liquid medicine bottle 23. The position of the tube 34 with respect to the longitudinal direction is set.

  In the stirring device having the above-described configuration, when the motor 62 of the rotation drive unit 61 is driven, the shaft portion 64 fixed to the motor 62 rotates together with the motor 62. The rotation direction of the motor 62 at this time is referred to as a positive direction. As the shaft portion 64 rotates in the positive direction, the cup 78 fixed to the shaft portion 64 and the liquid medicine bottle 23 held by the cup 78 rotate about the rotation axis L3. A rotation axis L <b> 3 that forms the central axis of rotation of the liquid medicine bottle 23 is along the center line L <b> 2 of the liquid medicine bottle 23. Here, the center line L2 of the liquid medicine bottle 23 refers to a straight line connecting the opening 23A and the bottom 23B of the liquid medicine bottle 23, and typically the opening 23A of the liquid medicine bottle 23 having a circular shape in plan view. And the center of the bottom 23B of the liquid medicine bottle 23 having a circular shape in plan view.

  In the embodiment shown in FIGS. 7 and 8, the liquid medicine bottle 23 is arranged at the center of the cup 78. Thereby, the center line L2 of the liquid medicine bottle 23 and the rotation axis L3 of the rotation drive unit 61 exist in the same straight line.

  With the rotation of the liquid medicine bottle 23, the liquid medicine 5 accommodated in the liquid medicine bottle 23 passes through the inside of the liquid medicine bottle 23 along the rotation direction of the liquid medicine bottle 23, and the cylinder of the liquid medicine bottle 23. Flow in the circumferential direction of the shaped side.

  After rotating the motor 62 in the forward direction for a predetermined time, subsequently, the motor 62 is rotated in the opposite direction, which is the opposite direction to the forward direction. The rotation drive unit 61 is provided so as to generate a rotational force in both forward and reverse directions. The liquid medicine supply apparatus 1 may be configured such that an operator who operates the liquid medicine supply apparatus 1 can arbitrarily set the rotation direction and the rotation time of the motor 62. For example, after the motor 62 is rotated in the forward direction for 5 seconds and the liquid medicine bottle 23 is rotated a plurality of times, the motor 62 is rotated in the reverse direction for 5 seconds and the liquid medicine bottle 23 is rotated in the reverse direction a plurality of times. The forward rotation time and the reverse rotation time may be equal. Further, for example, the rotation direction of the motor 62 may be set only in the positive direction.

  Along with switching the rotation direction of the motor 62, the rotation direction of the liquid medicine bottle 23 is also switched. That is, the rotation drive unit 61 rotates the liquid medicine bottle 23 in the opposite direction opposite to the forward direction after rotating the liquid medicine bottle 23 in the forward direction. In the liquid medicine bottle 23 whose rotation direction is switched and rotated in the reverse direction, the turbulence of the turbulent flow in the liquid medicine 5 increases. In addition, vortices are generated in the flow of the liquid medication 5. The liquid medicine 5 is stirred in the liquid medicine bottle 23 by the action of the turbulent flow and the vortex.

  As described above, the liquid medicine bottle 23 is rotated by the rotational driving force generated by the rotation driving unit 61, whereby the liquid medicine 5 accommodated in the liquid medicine bottle 23 is stirred inside the liquid medicine supply device 1. Can do. Therefore, the liquid medicine 5 that requires stirring can be efficiently dispensed in a short time by using the liquid medicine supply apparatus 1 of the present embodiment. Compared with the conventional apparatus, the cup 78 holding the liquid medicine bottle 23 and the liquid medicine bottle 23 are integrally rotated with a simple configuration in which the rotation drive unit 61 is added, and the liquid medicine 5 is supplied to the liquid medicine supply device 1. Can be stirred in. By switching the rotation direction of the liquid medicine bottle 23 from the forward direction to the reverse direction, the turbulence intensity of the turbulent flow in the liquid medicine bottle 23 can be increased, so that the liquid medicine 5 can be stirred more efficiently. .

  A tube 34 is disposed in the liquid medicine bottle 23 so as to extend from the opening 23 </ b> A to the bottom 23 </ b> B of the liquid medicine bottle 23, and the tube 34 is fixed outside the liquid medicine bottle 23. Therefore, the tube 34 rotates relative to the rotating liquid medicine bottle 23. Since the tube 34 is kept fixed with respect to the liquid medicine 5 flowing in the liquid medicine bottle 23 together with the liquid medicine bottle 23, the tube 34 functions as a stirrer for the liquid medicine 5. That is, by arranging the tube 34 so as to be immersed in the liquid medicine 5 in the liquid medicine bottle 23, the flow of the liquid medicine 5 tends to be turbulent. Therefore, the liquid medicine 5 can be stirred more efficiently.

  When the tube 34 disposed in the liquid medicine bottle 23 rotates together with the liquid medicine bottle 23, the tube 34 may be twisted. If the tube 34 is twisted, there is a possibility that problems such as detachment of the tube 34 from the liquid medicine bottle 23, tipping of the liquid medicine bottle 23, damage to the tube 34, and the like may occur. Therefore, in the present embodiment, when the rotation driving unit 61 rotates the liquid medicine bottle 23, the base member 81 fixed to the opening 23A of the liquid medicine bottle 23 rotates integrally with the liquid medicine bottle 23. The cover 83 placed on the member 81 is configured to slide relative to the base member 81 without rotating. The tube 34 is fixed to the nozzle mounting plate 53 and attached to a cover 83 that can rotate relative to the base member 81.

  The diameter of the opening 23 </ b> A of the liquid medicine bottle 23 and the diameter of the through hole 81 c formed in the base member 81 are formed to be somewhat larger than the outer diameter of the tube 34. By aligning the position of the through-hole through which the tube 34 formed in the cover 83 can be inserted with the opening 23A of the liquid medicine bottle 23 and the through-hole 81c formed in the base member 81, as shown in FIG. 34 is positioned with respect to the liquid medicine bottle 23 so as to pass through the opening 23A and the central portion of the through hole 81c. The base member 81, the cover 83, and the positioning member 85 constitute positioning means for positioning the tube 34 with respect to the liquid medicine bottle 23 so as to pass through the central portion of the opening 23A. The tube 34 is attached to the liquid medicine bottle 23 through this positioning means.

  With such a configuration, the tube 23 can be prevented from coming into contact with the opening 23 </ b> A, so that the tube 34 can be prevented from rotating together with the liquid medicine bottle 23 when the liquid medicine bottle 23 is rotated. Therefore, generation | occurrence | production of the twist of the tube 34 can be suppressed and generation | occurrence | production of the malfunction accompanying the twist of the tube 34 which was mentioned above can be suppressed. Moreover, it can suppress that the tube 34 contacts the rotating liquid medicine bottle 23 and the base member 81, and the outer surface of the tube 34 is worn. Therefore, the breakage of the tube 34 can be suppressed, and the wear powder of the tube 34 can be prevented from entering the liquid medicine bottle 23.

  By fitting the positioning member 85 into the recess 84 of the cover 83 and holding the positioning member 85 on the cover 83, the tube 34 is engaged with the cover 34, and the tube 34 passes through the center of the opening 23A. Positioning with respect to the liquid medicine bottle 23 can be easily performed, and the occurrence of twisting or wear of the tube 34 can be easily suppressed.

  As shown in FIG. 10, the recess 84 formed in the cover 83 has a shape extending from the center of the cover 83 toward the radially outer side, and the positioning member 85 attached to the tube 34 is aligned with the recess 84. And In other words, the positioning member 85 extends in a direction intersecting (typically orthogonal) with the extending direction of the tube 34. The tube 34 passes through the positioning member 85 at one end side in the extending direction of the positioning member 85, and the other end side opposite to the one end side projects from the tube 34 to the radially outer side of the tube 34. Protrudes against the surface of the. If the positioning member 85 is formed in this way, the positioning member 85 has a rotation stopping function for preventing the tube 34 from rotating with respect to the cover 83. Therefore, wear between the tube 34 and the cover 83 can be prevented, and wear between the positioning member 85 and the cover 83 can be prevented.

  When the liquid medicine bottle 23 rotates, the base member 81 rotates together with the liquid medicine bottle 23 in a state where the base member 81 is in contact with the non-rotating cover 83. Therefore, the material forming the base member 81 or the cover 83 is worn at the contact sliding portion between the base member 81 and the cover 83. However, the base member 81 has a flat flange portion 81a and a sleeve portion 81b protruding from the flange portion 81a, the cover 83 is placed on the flange portion 81a, and the tube 34 is disposed through the cover 83. A through hole 81c for this purpose is formed at the upper end of the sleeve portion 81b. Therefore, it is possible to prevent the abrasion powder of the base member 81 and the cover 83 from entering the liquid medicine bottle 23 via the through hole 81c.

  In the stirring device of the present embodiment, the rotation driving unit 61 is disposed below the liquid medicine bottle 23, and the shaft part 64 that transmits the rotational force penetrates the box 63 and the liquid medicine bottle holding body 32 to rotate the driving part. It protrudes upward from 61. If the liquid 5 enters the motor 62 through the shaft portion 64, a malfunction may occur in the motor 62. Therefore, a waterproof structure for protecting the motor 62 by preventing the liquid 5 from entering the motor 62 when the liquid 5 is spilled during handling of the liquid bottle 23 is provided on the upper surface of the liquid bottle holder 32. Is provided. Hereinafter, this waterproof structure will be described.

  As shown in FIGS. 8 and 9, the end of the shaft portion 64 connected to the motor 62 is covered with a cap-shaped connection shaft 65. The shaft portion 64 is disposed over both the upper and lower sides of the liquid medicine bottle holding body 32 through a through hole formed in the liquid medicine bottle holding body 32. The connecting shaft 65 is disposed above the liquid medicine bottle holder 32. The connecting shaft 65 is detachably attached to the shaft portion 64 in consideration of ease of maintenance.

  An annular sheet member 71 made of an elastic material contacts the upper surface of the liquid medicine bottle holding body 32 so as to surround the periphery of the through-hole formed in the liquid medicine bottle holding body 32 for allowing the shaft portion 64 to pass therethrough. Arranged. The sheet member 71 is sandwiched between the liquid medicine bottle holder 32 and the annular pressing member 72. The pressing member 72 is fixed to the liquid medicine bottle holder 32 by fixing members 73 typified by a plurality of bolts. The pressing member 72 is fixed to the liquid medicine bottle holder 32 while applying a stress to the sheet member 71 in the thickness direction and keeping the sheet member 71 elastically deformed over the entire circumferential direction. Thereby, the periphery of the through-hole formed in the liquid medicine bottle holder 32 is liquid-tightly sealed, so that the liquid can be prevented from entering the sheet member 71 from the outer peripheral side to the inner peripheral side.

  The upper end of the connecting shaft 65 protrudes upward with respect to the pressing member 72 fixed to the liquid medicine bottle holder 32. A disc-shaped circular connector 74 is fixed to the upper end of the connecting shaft 65. The circular connector 74 is formed with a fixing hole 74a near the center and a fixing hole 74b near the periphery. The circular connector 74 and the connecting shaft 65 are fixed integrally by inserting a bolt into the fixing hole 74a.

  A cover 75 is provided so as to cover the circular connector 74 and the pressing member 72. The circular connector 74 and the cover 75 are integrally fixed by inserting bolts into a fixing hole 74b on the peripheral side of the circular connector and a fixing hole 75b formed in the cover 75. The cover 75 has a disc portion that contacts the upper surface of the circular connector 74 and a cylindrical portion that projects from the periphery of the disc portion toward the liquid medicine bottle holder 32 side. The diameter of the cylindrical portion is larger than the diameters of the circular connector 74 and the pressing member 72, and the outer peripheral surface of the pressing member 72 is surrounded by the cylindrical portion. The disk portion of the cover 75 is in surface contact with the circular connector 74.

  Due to the waterproof structure as described above, when liquid spills from above on the cover 75, the liquid flows from the disk portion of the cover 75 to the outside of the cylindrical portion, and the flow of the liquid toward the pressing member 72 on the radially inner side is suppressed. Has been. Inflow of the liquid to the inside of the pressing member 72 is prevented, and the liquid is prevented from reaching the shaft portion 64 beyond the pressing member 72 and the sheet member 71. Even if the liquid flows through the fixing holes 75b and 74b for fixing the cover 75 and the circular connector 74, the fixing hole 74b is formed near the outer periphery of the circular connector 74. The liquid is suppressed from reaching the fixing hole 74a near the center, and the liquid is suppressed from reaching the shaft portion 64 via the fixing hole 74a. Therefore, it is possible to prevent the occurrence of a liquid flow that travels along the shaft portion 64 and to prevent the liquid agent 5 from entering the motor 62 that travels along the shaft portion 64.

  Moreover, when each element forming the waterproof structure described above is detachably attached using, for example, a bolt or the like, when the liquid agent 5 is spilled, the liquid agent 5 spilled by removing each element can be easily obtained. Can be cleaned.

  A disk-shaped cup fixing portion 76 is further fixed on the upper side of the cover 75. The cup fixing portion 76 is formed with a protrusion 77 protruding upward. By fitting this projection 77 into a recess formed on the bottom surface of the cup 78, the cup 78 can be positioned with respect to the cup fixing portion 76, and displacement of the cup 78 can be prevented. The cup fixing portion 76 is made of a ferromagnetic material. Therefore, by installing a magnet on the bottom surface of the cup 78, the cup 78 is magnetically attached and fixed to the cup fixing portion 76. With such a configuration, the cup 78 can be positioned appropriately with respect to the cup fixing portion 76 by simply placing the cup 78 in alignment with the protrusion 77 and placing it on the cup fixing portion 76. Can be fixed easily.

  A non-slip sheet (not shown) is attached to the inner bottom surface of the cup 78 facing the bottom 23 </ b> B of the liquid medicine bottle 23. This anti-slip sheet prevents the liquid medicine bottle 23 from sliding with respect to the inner bottom surface of the cup 78, and the liquid medicine bottle 23 and the cup 78 smoothly when the rotation drive unit 61 is switched between forward rotation and reverse rotation. It is possible to switch the rotation direction.

  Next, the control in the case of dispensing by supplying the liquid 5 from the liquid bottle 23 to the prescription bottle 2 will be described. FIG. 12 is a flowchart showing an example of a control method of the liquid medicine supply device 1.

  First, an instruction to set the prescription bottle 2 on the mounting table 48 at the initial position for setting the prescription bottle 2 on the mounting table 48, and operate the touch panel 14 to start supplying the liquid medicine 5 to the prescription bottle 2. Is output, a control signal is transmitted to the lifting device 50 as shown in step (S10). When the lifting device 50 moves the weight detection means 4 upward, the medication bottle 2 rises. The weight detection means 4 moves upward until reaching the supply position where the liquid medication 5 is supplied to the prescription bottle 2.

  Next, in step (S20), the drum rotating motor 22 is controlled, and the rotating drum 21 rotates. In an initial state before dispensing by the liquid medicine supply device 1, the supply port 36A formed at the lower end of the supply nozzle 36 is not positioned at the position facing the opening 2A formed at the upper end of the prescription bottle 2, and the circumferential direction The prescription bottle 2 is located between the supply nozzles 36 adjacent to each other. When the drum rotation motor 22 is driven, the rotary drum 21 rotates so that the supply nozzle 36 moves in a horizontal direction to a position where the supply port 36A of the supply nozzle 36 faces the opening 2A of the prescription bottle 2.

  At this time, the liquid medicine bottle 23 placed on the liquid medicine bottle holding body 32 attached to the rotating drum 21 also moves in the horizontal direction. And the liquid medicine bottle 23 from which the stored liquid medicine 5 is dispensed is arrange | positioned at the forefront side of the liquid medicine supply apparatus 1. FIG. By moving the liquid medicine bottle 23 in this way, the type of liquid medicine 5 to be dispensed can be visually confirmed from the front of the liquid medicine supply apparatus 1.

  When the rotation of the rotary drum 21 is completed, in the next step (S30), the pump driving motor 40 is moved forward, and the connecting member 42 of the pump driving motor 40 is connected to the connected member 44 of the pump 24. Thus, the rotation of the pump driving motor 40 can be transmitted to the pump 24, that is, the pump 24 can be driven.

  Next, in step (S40), it is determined whether or not the liquid medication 5 supplied to the prescription bottle 2 is a liquid medication 5 of the type that requires stirring. When it is determined that the stirring is necessary, subsequently, in the step (S50), the liquid medicine bottle 23 rotates in the forward direction by driving the rotation driving unit 61 in the forward direction. Further, in the step (S60), the liquid medicine bottle 23 rotates in the reverse direction by driving the rotation driving unit 61 in the reverse direction. Due to the forward and reverse rotation of the liquid medicine bottle 23, the liquid medicine 5 in the liquid medicine bottle 23 is sufficiently stirred.

  Subsequently, in step (S70), the pump 24 is driven to supply a predetermined amount of the liquid medicine 5 in the liquid medicine bottle 23 to the prescription bottle 2 via the tube 34 and the supply nozzle 36. By supplying the liquid medicine 5 to the prescription bottle 2 after the rotation driving unit 61 rotates the liquid medicine bottle 23, the liquid medicine 5 in a sufficiently stirred state can be supplied. Therefore, the type of liquid 5 that requires stirring before dispensing according to the dispensing guidelines can be dispensed automatically using the liquid supply device 1 of the present embodiment.

  When it is determined in the step (S40) that stirring is unnecessary, the step of rotating the liquid medicine bottle 23 is omitted, and the pump 24 is immediately driven to supply the liquid medicine 5 from the liquid medicine bottle 23 to the prescription bottle 2. . Note that the liquid medicine bottle 23 containing the liquid medicine 5 that does not require stirring is inside the cup 78 attached to the upper surface of the liquid medicine bottle holding body 32 with a cup fixing portion 76A (see FIGS. 6 to 10) interposed therebetween. Is held in. Below the cup fixing portion 76A, the rotation driving portion 61 is not provided.

  Subsequently, in step (S80), it is determined whether or not the supply of the liquid medication 5 (and the excipient if necessary) to the medication bottle 2 is completed, and the dispensing is completed. When the supply of the liquid medicine 5 is not completed, the process returns to the step (S20), and the rotary drum 21 is moved so that the liquid medicine bottle 23 containing the liquid medicine 5 to be supplied next is arranged on the front side of the apparatus. It is rotated. When the supply of the liquid medication 5 is completed, the elevating device 50 moves the mounting table 48 downward, so that the medication bottle 2 is lowered. The mounting table 48 moves downward until it returns from the supply position to the initial position. In this way, the supply of the liquid 5 to the prescription bottle 2 using the liquid supply device 1 of the present embodiment is completed.

  FIG. 13 is a schematic view showing a modification of the stirring device. In the example shown in FIG. 13, the center line L2 of the liquid medicine bottle 23 is displaced from the rotation axis L3 of the rotation driving unit 61, and the cup 78 as a holder separates the center line L2 from the rotation axis L3 and the liquid medicine bottle 23. Hold.

  In order to easily accommodate the liquid medicine bottle 23 in the cup 78, the diameter of the cup 78 is slightly larger than the diameter of the liquid medicine bottle 23, and a slight gap is formed between the liquid medicine bottle 23 and the cup 78. There is play. Therefore, even in the configuration shown in FIG. 8, the center line L2 and the rotation axis L3 do not actually completely coincide with each other, and the liquid medicine 5 in the liquid medicine bottle 23 is considered to rotate eccentrically with respect to the rotation of the rotation drive unit 61. . Due to this eccentric rotation, the liquid medication 5 is efficiently stirred. Therefore, as shown in FIG. 13, when the center line L <b> 2 and the rotation axis L <b> 3 are positively shifted, the liquid medicine 5 in the liquid medicine bottle 23 reliably rotates eccentrically with respect to the rotation of the rotation drive unit 61. And since the magnitude | size of eccentricity can be increased, the liquid agent 5 can be stirred more efficiently.

  FIG. 14 is a schematic view showing another modification of the stirring device. In the example shown in FIG. 14, a protrusion 79 protruding upward is provided on the bottom surface of the cup 78, and the liquid medicine bottle 23 is disposed in the cup 78 so that the bottom 23 </ b> B of the liquid medicine bottle 23 is placed on the protrusion 79. Is done. In this way, the center line L2 of the liquid medicine bottle 23 can be inclined with respect to the rotation axis L3 of the rotation drive unit 61, and the rotation axis of the liquid medicine 5 in the liquid medicine bottle 23 is also changed to the rotation axis L3. Inclines against. Thus, the liquid agent 5 can be stirred more efficiently by shifting the rotating shaft.

  Although the embodiment of the present invention has been described as above, the embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Liquid medicine supply device, 2 medication bottle, 2A opening, 5 liquid medicine, 6 housing | casing, 21 rotating drum, 23 liquid medicine bottle, 23A opening part, 23B bottom part, 24 pump, 32 liquid medicine bottle holder, 34 tube, 34a One end part, 34b Other end part, 36 Supply nozzle, 36A Supply port, 53 Nozzle mounting plate, 54 Notch part, 61 Rotation drive part, 62 Motor, 64 Shaft part, 65 Connecting shaft, 71 Sheet member, 72 Press member 73 fixing member, 74 circular connector, 74a, 74b, 75b fixing hole, 75 cover, 76, 76A cup fixing part, 77 projection, 78 cup, 81 base member, 81a flange part, 81b sleeve part, 81c through hole, 82 Spacer, 83 cover, 84 recess, 85 positioning member, 86 tube fixing part.

Claims (5)

A liquid medicine supply device for supplying the liquid medicine to a medication bottle from a liquid medicine bottle containing a liquid medicine,
A holding body for holding a plurality of liquid medicine bottles;
Rotation drive that is provided on the holding body and individually rotates the liquid medicine bottle containing the liquid medicine that needs stirring among the plurality of liquid medicine bottles around a rotation axis that passes through the bottom of the liquid medicine bottle. A liquid medicine supply device. A pipe portion through which the liquid medicine flowing out from the liquid medicine bottle passes,
The liquid medicine supply device according to claim 1, wherein the pipe portion is disposed inside the liquid medicine bottle and extends from an opening portion of the liquid medicine bottle toward the bottom portion. A holder for holding the bottom portion of the liquid medicine bottle containing a liquid medicine that requires stirring among the liquid medicine bottles;
The liquid medicine supply device according to claim 1 or 2, wherein the holder holds the liquid medicine bottle by separating a center line of the liquid medicine bottle from the rotation shaft.   The said rotation drive part generate | occur | produces the rotational force of the forward / reverse direction, and rotates the liquid medicine bottle in the reverse direction opposite to the said normal direction after rotating the said liquid medicine bottle in the normal direction. Item 4. The liquid supply device according to any one of Items 3 to 4.   The liquid medicine supply device according to any one of claims 1 to 4, wherein the liquid medicine is supplied to the prescription bottle after the rotation driving unit rotates the liquid medicine bottle.