Automatic radioactive medicine split charging instrument

Abstract

The invention discloses an automatic radioactive medicine split charging instrument. The split charging instrument comprises an outer shell, and a medicine bottle protective cover, a split charging protective cover, a liquid medicine split charging transfer catheter and a cup holder mechanism which are arranged in the outer shell. The diaphragm pump, the electromagnetic valve and the ventilation needle are sequentially connected, and the ventilation needle is inserted into the liquid medicine diluting bottle. When the electromagnetic valve is electrified, the diaphragm pump is started to form negative pressure in the liquid medicine diluting bottle, and the stock solution in the stock solution bottle can be sucked into the liquid medicine diluting bottle under the action of the negative pressure; when the electromagnetic valve is powered off, the ventilation needle is communicated with the inner space of the outer shell, and liquid medicine can be conveniently extracted. By arranging the diaphragm pump and the electromagnetic valve, a stock solution in the stock solution bottle can be automatically sucked through negative pressure, the requirement for extraction of diluted liquid medicine in the liquid medicine dilution bottle can be met, arrangement is scientific and reasonable, and subpackaging is more accurate. The medicine bottle protective cover is improved, an existing protective cover with holes is omitted, pollution is avoided, the top lead cover is arranged to be of a horizontal push-pull structure, operation is easy, and time and labor are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of radioactive drug dispensing, and particularly to an automatic radioactive drug dispenser. Background Art

[0002] Radioactive drugs refer to a special type of drugs containing radionuclides for medical diagnosis and treatment. For example, patients with hyperthyroidism need to receive radioactive treatment with I-131. When radioactive drugs are used clinically, dispensing work is required. At present, many radioactive drugs are dispensed by syringe extraction, which has a long dispensing time, is not easy to operate, and is inaccurate, unable to meet the precise needs of each clinical patient, affecting the treatment or examination effect; moreover, the dispensing step also causes the operator to be irradiated for too long, and the harm to medical staff cannot be ignored.

[0003] Existing radioactive drug dispensing equipment still has problems such as inaccurate dispensing, inconvenient operation, and poor shielding effect. Based on this, the present application creates a new automatic radioactive drug dispenser, which can achieve automatic suction of the original solution of radioactive drugs and meet the requirements of liquid drug dispensing. It has a simple and convenient structure, is safe and feasible, and also improves the convenience of operation and enhances the safety of dispensing through the improvement of the protective cover, becoming an extremely urgent target for improvement in the current industry. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic radioactive drug dispenser, which can achieve automatic suction of the original solution of radioactive drugs and meet the requirements of liquid drug dispensing through the combined setting of a diaphragm pump and an electromagnetic valve. It has a simple and convenient structure, is safe and feasible, and also improves the convenience of operation and enhances the safety of dispensing through the improvement of the protective cover, thereby overcoming the deficiencies of existing automatic radioactive drug dispensers.

[0005] In order to solve the above technical problems, the present invention provides an automatic radiopharmaceutical dispensing instrument, comprising an outer shell, wherein the outer shell is provided with a medicine bottle protective cover for placing a medicine liquid dilution bottle, a dispensing protective cover for installing a medicine liquid dispensing transfer catheter, and a cup holder mechanism for placing a medicine liquid receiving cup, as well as a driving mechanism for driving the syringe connected to the medicine liquid dispensing transfer catheter to be inserted, pulled out and moved, and the medicine liquid dispensing transfer catheter includes at least three three-way valves connected in series, the ends of the three-way valves being respectively used to connect a syringe, a diluent extraction needle, a stock solution extraction needle, a drinking water extraction tube and a medicine liquid discharge pipe, and the outer shell also includes a diaphragm pump, a solenoid valve and a ventilation needle. The air inlet end of the diaphragm pump is connected to the first port of the solenoid valve, the second port of the solenoid valve is connected to the ventilation needle, and the third port of the solenoid valve is connected to the internal space of the outer shell. When the solenoid valve is energized, its first port is communicated with the second port. When the diaphragm pump is started, a negative pressure is formed inside the medicine dilution bottle. Under the action of the negative pressure, the original liquid in the original liquid bottle can be sucked into the medicine dilution bottle; when the solenoid valve is de-energized, its third port is communicated with the second port, thereby realizing the communication between the medicine dilution bottle and the internal space of the outer shell, making it convenient for the syringe connected to the medicine liquid filling transfer catheter to extract the medicine from the medicine dilution bottle.

[0006] As a further improvement, the medicine bottle protective cover is surrounded by a top lead cover, a bottom lead seat and four side lead blocks, and an activity detector for detecting the activity of the medicine dilution bottle is provided on the inner wall of the side lead block, and a first avoidance hole for the conduit passing through the medicine bottle protective cover is provided on the side lead block near the middle of the outer shell.

[0007] As a further improvement, the top lead cover adopts a horizontal sliding structure, a movable handle is provided on the upper part of the top lead cover, and an unlocking mechanism for controlling the opening and closing sliding of the top lead cover is provided on the outer shell.

[0008] As a further improvement, the unlocking mechanism adopts an elastic locking pin.

[0009] As a further improvement, the lead block of the medicine bottle protective cover has a thickness of 60 mm.

[0010] As a further improvement, a second avoidance hole is provided on the side lead block near the outside of the outer shell for the catheter connected to the raw liquid bottle to pass through, and a hose protective cover is also provided on the outside of the outer shell for protecting the catheter connected to the raw liquid bottle before it enters the second avoidance hole.

[0011] As a further improvement, the outer shell also includes an independent three-way valve whose first port is connected to the drinking water extraction pipe, the second port of the independent three-way valve is connected to a port in the liquid medicine packaging transfer conduit, and the third port of the independent three-way valve is blocked.

[0012] Further improvement: The cup holder mechanism includes a cup tray for placing the liquid medicine receiving cup, a hose holder for installing the liquid medicine discharge pipe, a three-link rod, and a power mechanism for driving the cup tray to move telescopically. The middle part of the hose holder is fixedly connected to a vertical plate located in the outer housing body by a pin shaft for rotation. The outer end part of the hose holder is arranged in an L-shaped structure. The three-link rod includes a horizontal push block, a triangular block, and a vertical rod. One end of the horizontal push block abuts against the inner side of the cup tray, and the other end is hinged to the first corner end of the triangular block. The second corner end of the triangular block is rotatably connected to the vertical plate, and the third corner end of the triangular block is hinged to the bottom end of the vertical rod. The top end of the vertical rod is hinged to the inner end part of the hose holder. When the cup tray moves inward under the action of the power mechanism, it drives the horizontal push block to move inward, pushes the triangular block to rotate, and further pushes the vertical rod to move upward, prompting the inner end part of the hose holder to rotate upward, and further causing the outer end part of the hose holder to rotate downward, driving the outlet end of the liquid medicine discharge pipe to be close to the inner wall of the liquid medicine receiving cup to prevent the liquid medicine from splashing when discharged.

[0013] Further improvement: The inner end part of the hose holder is further connected with a return spring, and the other end of the return spring is connected to the bottom of the vertical plate for controlling the hose holder to return when the cup tray moves outward.

[0014] Further improvement: The power mechanism adopts a gear-rack transmission mechanism, and an automatic opening and closing door body is provided on the outer housing body. The power mechanism drives the cup tray and the liquid medicine receiving cup to extend out of the outer housing body from the opening of the automatic opening and closing door body.

[0015] After adopting such a design, the present invention has at least the following advantages:

[0016] 1. By arranging a diaphragm pump and an electromagnetic valve in the outer housing body, the radioactive drug automatic dispensing instrument of the present invention can not only automatically suck the stock solution in the stock solution bottle by negative pressure, but also meet the extraction of the diluted liquid medicine in the liquid medicine dilution bottle. The setting is scientific and reasonable, and the dispensing is more accurate.

[0017] 2. Also, through the improvement of the medicine bottle protective cover, the existing perforated protective cover is omitted to avoid contamination. By setting the lead top cover into a horizontal push-pull structure, only horizontal push-pull is required during operation, avoiding the disadvantages of the existing protective cover that needs to be rotated and lifted, saving time and effort, and greatly improving the operation convenience and safety. Also, through the setting of the hose protective cover, the protection of the through conduit between the outer housing body and the lower housing body is further enhanced, making it safer and more reliable.

[0018] 3. Also, through the setting of the independent three-way valve, it is beneficial for disassembly, and it is convenient to meet the structural layout of the existing small-space dispensing scenario. The setting is flexible and has a wide adaptability.

[0019] 4. Through the improvement of the cup holder mechanism, the liquid medicine receiving cup is linked with the liquid medicine discharge pipe, and the discharge port of the liquid medicine discharge pipe can closely adhere to the inner wall of the receiving cup when the liquid medicine flows out, enabling the liquid medicine to flow down smoothly, effectively preventing the splashing of the liquid medicine during discharge, and further enhancing safety. Through the setting of the return spring, the automatic return of the hose holder can be satisfied when the cup holder extends, without affecting the movement of the liquid medicine receiving cup. Description of the Drawings

[0020] The above is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, the following further detailed description of the present invention will be given in combination with the drawings and specific embodiments.

[0021] Figure 1 It is a perspective view of the right-side structure of the radioactive drug automatic dispensing instrument of the present invention.

[0022] Figure 2 It is a perspective view of the left-side structure of the radioactive drug automatic dispensing instrument of the present invention.

[0023] Figure 3 It is a perspective view of the rear-side structure of the radioactive drug automatic dispensing instrument of the present invention.

[0024] Figure 4 It is a schematic diagram of the top structure of the radioactive drug automatic dispensing instrument of the present invention.

[0025] Figure 5 It is a schematic diagram of the structure when the solenoid valve in the radioactive drug automatic dispensing instrument of the present invention is energized.

[0026] Figure 6 It is a schematic diagram of the structure when the solenoid valve in the radioactive drug automatic dispensing instrument of the present invention is de-energized.

[0027] Figure 7 It is a schematic diagram of the structure of the raw liquid transfer in the radioactive drug automatic dispensing instrument of the present invention.

[0028] Figure 8 It is a schematic diagram of the structure of the liquid medicine transfer in the liquid medicine dilution bottle of the radioactive drug automatic dispensing instrument of the present invention.

[0029] Figure 9 It is a schematic diagram of the structure of the water transfer in the drinking water bottle of the radioactive drug automatic dispensing instrument of the present invention.

[0030] Figure 10 It is a schematic diagram of the structure of the medicine bottle protective cover of the radioactive drug automatic dispensing instrument of the present invention.

[0031] Figure 11 It is a schematic diagram of the state of the medicine bottle protective cover of the radioactive drug automatic dispensing instrument of the present invention to be opened.

[0032] Figure 12It is a schematic diagram after the medicine bottle protective cover of the radioactive drug automatic dispensing instrument of the present invention is opened.

[0033] Figure 13 It is a schematic structural diagram of the cup holder mechanism in the radioactive drug automatic dispensing instrument of the present invention.

[0034] Figure 14 It is a schematic structural diagram of the cup holder mechanism in the radioactive drug automatic dispensing instrument of the present invention (showing the state of liquid medicine flowing out). Detailed implementation manners

[0035] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be more thoroughly understood and the scope of the present invention can be completely conveyed to those skilled in the art.

[0036] Refer to the attached Figures 1 to 4 As shown, the radioactive drug automatic dispensing instrument of this embodiment includes an outer housing 1.

[0037] Inside the outer housing 1, there are provided a medicine bottle protective cover 25 for placing the liquid medicine dilution bottle 26, a dispensing protective cover 19 for installing the liquid medicine dispensing transfer catheter 15, a cup holder mechanism 12 for placing the liquid medicine receiving cup 13, and a driving mechanism 17 for driving the syringe 16 connected to the liquid medicine dispensing transfer catheter 15 to insert and pull out. The liquid medicine dispensing transfer catheter 15 adopts three series-connected one-piece three-way valves and a separately connected independent three-way valve 30. The ends of the series-connected three-way valves are respectively connected to the syringe 16, the diluent extraction needle 21, the stock solution extraction needle, the drinking water extraction pipe 27, and the liquid medicine discharge pipe 14. Inside the outer housing 1, there is also a discharge pipe 20 with an exhaust fan 18, which is used to connect to the waste gas collection pipeline to realize the centralized collection and treatment of the polluted air inside the outer housing 1.

[0038] In this embodiment, the outer housing 1 also includes a diaphragm pump 29, a solenoid valve 31, and a ventilation needle 23. As shown in the attached Figure 5 and 6 As shown, the intake end of the diaphragm pump 29 is connected to the first port C of the solenoid valve 31. The second port A of the solenoid valve 31 is connected to the ventilation needle 38. The third port B of the solenoid valve 31 communicates with the internal space of the outer housing 1. When the solenoid valve 31 is energized, its first port C communicates with the second port A, and the diaphragm pump 29 starts to form a negative pressure inside the liquid medicine dilution bottle 26, and the negative pressure can promote the stock solution in the stock solution bottle 32 to enter the liquid medicine dilution bottle 26. As shown in the attached Figure 7As shown; when the solenoid valve 31 loses power, its third port B communicates with the second port A, realizing the communication between the liquid medicine dilution bottle 26 and the internal space of the outer housing 1, facilitating the extraction of the liquid medicine in the liquid medicine dilution bottle 26 by the syringe 16 connected to the liquid medicine dispensing and transfer conduit 15, as shown in the appendix Figure 8 As shown. In this embodiment, the diaphragm pump 29 and the solenoid valve 31 are arranged outside the medicine bottle protective cover 25, and the connecting conduit of the solenoid valve 31 and the ventilation needle 38 penetrates the side wall of the medicine bottle protective cover 25.

[0039] Refer to the appendix Figure 10 As shown, in this embodiment, the medicine bottle protective cover 25 is surrounded by a top lead cover 22, a bottom lead seat 251, and four side lead blocks 252, and the thickness of the lead block is 60 mm. An activity detector 42 for detecting the activity of the liquid medicine in the liquid medicine dilution bottle 26 is provided on the inner wall of the side lead block 252, and a first avoidance hole 253 for the conduit passing through the medicine bottle protective cover 25 is provided on the side lead block 252 near the middle of the outer housing 1. The top lead cover 22 is opened and closed in a push-pull manner, and an unlocking mechanism for controlling the opening and closing sliding of the top lead cover 22, such as an elastic locking pin 24, is provided on the outer housing 1. As shown in the appendix Figure 11 and 12 As shown, when it is necessary to open the medicine bottle protective cover 25, only the elastic locking pin 24 needs to be pulled out, and then the top lead cover 22 can be easily pulled by the handle 221, overcoming the drawback that the existing top lead cover needs to be lifted, and because the top lead cover is very heavy, it is also easy to hit the outer housing when being buckled, resulting in damage to the outer housing or potential safety hazards.

[0040] Moreover, a second avoidance hole for the conduit connected to the stock solution extraction needle 33 to pass through is provided on the side lead block 252 near the outside of the outer housing 1, and a hose protective cover 28 is further provided outside the outer housing 1, as shown in the appendix Figure 1 and 4 As shown, for protecting the conduit connected to the stock solution extraction needle 33 before it enters the second avoidance hole. The hose protective cover 28 can be rotated and opened, facilitating the installation of the conduit.

[0041] In this embodiment, the independent three-way valve 30 can be omitted, and the drinking water bottle extraction tube 27 is directly connected to one port of three three-way valves connected in series, and the water in the drinking water bottle can also be sucked. Since the independent three-way valve 30 is separately provided, it is conducive to disassembly, facilitating the structural arrangement to meet the existing small-space dispensing scenarios, with flexible setting and wide adaptability.

[0042] Refer to the appendix Figure 13 and 14As shown in the figure, in this embodiment, the cup holder mechanism 12 includes a cup tray 121 for placing the liquid medicine receiving cup 13, a hose holder 122 for installing the liquid medicine discharge pipe 14, a three-link rod, and a power mechanism for driving the cup tray 121 to move telescopically. The power mechanism can adopt a gear-rack mechanism for driving the cup tray 121 to move telescopically. The middle part of the hose holder 122 is fixedly connected to a vertical plate 123 located in the outer housing 1 by a pin shaft, and the outer end of the hose holder 122 is arranged in an L-shaped structure. The three-link rod includes a horizontal push block 124, a triangular block 125, and a vertical rod 126. One end of the horizontal push block 124 abuts against the inner side of the cup tray 121, and the other end is hinged to the first corner end of the triangular block 125. The second corner end of the triangular block 125 is rotatably connected to the vertical plate 123. The third corner end of the triangular block 125 is hinged to the bottom end of the vertical rod 126. The top end of the vertical rod 126 is hinged to the inner end of the hose holder 122, and a return spring 127 is also connected to the inner end of the hose holder 122. The other end of the return spring 127 is connected to the bottom of the vertical plate 123. When the cup tray 121 moves inward under the action of the power mechanism, it drives the horizontal push block 124 to move inward, pushes the triangular block 125 to rotate, and further pushes the vertical rod 126 to move upward, causing the inner end of the hose holder 122 to rotate upward, and then causing the outer end of the hose holder 122 to rotate downward, driving the outlet end of the liquid medicine discharge pipe 14 to be close to the inner wall of the cup of the liquid medicine receiving cup 13, preventing the liquid medicine from splashing when discharged. When the cup tray 121 extends outward under the action of the power mechanism, the return spring 127 rebounds to cause the inner end of the hose holder 122 to rotate downward, and then causing the outer end of the hose holder 122 to rotate upward above the liquid medicine receiving cup 13, so that its L-shaped end does not affect the outward extension of the liquid medicine receiving cup 13 along with the cup tray 121.

[0043] Again, as shown in the appendix Figure 1 As shown in the figure, an automatic opening and closing door body 11 corresponding to the cup holder mechanism 12 is provided on the outer housing 1. The power mechanism drives the cup tray 121 and the liquid medicine receiving cup 13 to extend out of the outer housing 1 from the opening of the automatic opening and closing door body 11 for direct access by the patient.

[0044] When the above radioactive drug automatic dispensing instrument realizes radioactive drug dispensing, it includes the following steps:

[0045] (1) Install the stock solution extraction needle 33, the liquid medicine dilution bottle 26, the diluent extraction needle 21, the ventilation needle 23, the liquid medicine dispensing transfer catheter 15, and the syringe 16, the independent three-way valve 30, the drinking water bottle, and the liquid medicine receiving cup 13 respectively, and complete the connection of the corresponding conduits;

[0046] (2)Start the diaphragm pump 29 and the solenoid valve 31, and transfer the stock solution in the stock solution bottle 32 to the medicine dilution bottle 26 through the negative pressure generated by the diaphragm pump 29, as shown in the appendix Figure 7 shown. After the transfer is completed, turn off the diaphragm pump 29 and the solenoid valve 31;

[0047] (4)According to the patient's demand for the medicine and the activity value of the medicine in the medicine dilution bottle 26, the syringe 16 connected to the medicine dispensing and transfer catheter 15 extracts the medicine in the medicine dilution bottle 26, as shown in the appendix Figure 8 shown, and discharges the extracted medicine to the medicine receiving cup 13 through the medicine discharge pipe 14;

[0048] (5)Then, the syringe 16 connected to the medicine dispensing and transfer catheter 15 extracts the drinking water in the drinking water bottle, as shown in the appendix Figure 9 shown, and discharges the extracted drinking water to the medicine receiving cup 13 through the medicine discharge pipe 14;

[0049] (6)Open the door body 11 of the outer housing 1, and the cup holder mechanism 12 sends the medicine receiving cup 13 out of the outer housing 1 to complete the medicine dispensing for the patient to drink.

[0050] The above is only a preferred embodiment of the present invention, and it does not impose any formal restrictions on the present invention. Any simple modifications, equivalent changes or decorations made by those skilled in the art using the disclosed technical content all fall within the protection scope of the present invention.

Claims

1. An automatic radioactive drug dispensing instrument, comprising an outer housing, wherein a medicine bottle protection cover for placing a liquid medicine dilution bottle, a dispensing protection cover for installing a liquid medicine dispensing and transfer catheter, a cup holder mechanism for placing a liquid medicine receiving cup, and a driving mechanism for driving the insertion and extraction movement of a syringe connected to the liquid medicine dispensing and transfer catheter are arranged inside the outer housing, and the liquid medicine dispensing and transfer catheter at least comprises three series-connected three-way valves, and the ends of the three-way valves are respectively used for connecting a syringe, a diluent extraction needle, a stock solution extraction needle, a drinking water extraction tube and a liquid medicine discharge tube, and is characterized in that, The outer casing further includes a diaphragm pump, a solenoid valve, and a venting needle. The intake end of the diaphragm pump is connected to the first port of the solenoid valve. The second port of the solenoid valve is connected to the venting needle. The third port of the solenoid valve communicates with the internal space of the outer casing. When the solenoid valve is energized, its first port and second port are in communication, and the start of the diaphragm pump can create a negative pressure inside the liquid medicine dilution bottle. Under the action of the negative pressure, the stock solution in the stock solution bottle can be sucked into the liquid medicine dilution bottle. When the solenoid valve is de-energized, its third port and second port are in communication, realizing the communication between the liquid medicine dilution bottle and the internal space of the outer casing, facilitating the extraction of the liquid medicine in the liquid medicine dilution bottle by a syringe connected to the liquid medicine dispensing and transfer catheter.

2. The radioactive drug automatic dispensing instrument according to claim 1, characterized in that, The medicine bottle protective cover is surrounded by a top lead cover, a bottom lead seat, and four side lead blocks. An activity detector for detecting the activity of the liquid medicine in the liquid medicine dilution bottle is provided on the inner wall of the side lead block. A first avoidance hole for a catheter passing through the medicine bottle protective cover is provided on the side lead block near the middle of the outer casing.

3. The radioactive drug automatic dispensing device according to claim 2, characterized in that, The top lead cover adopts a horizontal sliding structure. A moving handle is provided on the upper part of the top lead cover, and an unlocking mechanism for controlling the opening and closing sliding of the top lead cover is provided on the outer casing.

4. The radioactive drug automatic dispensing device according to claim 3, wherein, The unlocking mechanism adopts an elastic locking pin.

5. The radioactive drug automatic dispensing instrument according to claim 2, characterized in that, The lead block thickness of the medicine bottle protective cover is 60 mm.

6. The radioactive drug automatic dispensing device according to claim 2, characterized in that, A second avoidance hole for a catheter connected to the stock solution bottle to pass through is provided on the side lead block near the outside of the outer casing. A hose protective cover is further provided outside the outer casing for protecting the catheter connected to the stock solution bottle before it enters the second avoidance hole.

7. The radioactive drug automatic dispensing device according to claim 1, characterized in that, The outer casing further includes an independent three-way valve whose first port is connected to a drinking water extraction pipe. The second port of the independent three-way valve is connected to one port of the liquid medicine dispensing and transfer catheter, and the third port of the independent three-way valve is blocked.

8. The radioactive drug automatic dispensing instrument according to any one of claims 1 to 7, characterized in that, The cup holder mechanism includes a cup tray for placing a liquid medicine receiving cup, a hose rack for installing a liquid medicine discharge pipe, and a three-link rod, as well as a power mechanism for driving the cup tray to move telescopically. The middle part of the hose rack is fixedly connected to a vertical plate located in the outer casing by a pin shaft. The outer end of the hose rack is arranged in an L-shaped structure. The three-link rod includes a horizontal push block, a triangular block, and a vertical rod. One end of the horizontal push block abuts against the inner side of the cup tray, and the other end is hinged to the first corner end of the triangular block. The second corner end of the triangular block is rotatably connected to the vertical plate, and the third corner end of the triangular block is hinged to the bottom end of the vertical rod. The top end of the vertical rod is hinged to the inner end of the hose rack. When the cup tray moves inward under the action of the power mechanism, it drives the horizontal push block to move inward, pushing the triangular block to rotate, and then pushing the vertical rod upward, prompting the inner end of the hose rack to rotate upward, and further causing the outer end of the hose rack to rotate downward, driving the outlet end of the liquid medicine discharge pipe to be close to the inner wall of the liquid medicine receiving cup to prevent the liquid medicine from splashing when discharged.

9. The radioactive drug automatic dispensing instrument according to claim 8, characterized in that, A return spring is further connected to the inner end of the hose rack, and the other end of the return spring is connected to the bottom of the vertical plate, for controlling the hose rack to return when the cup tray moves outward.

10. The radioactive drug automatic dispensing instrument according to claim 9, characterized in that, The power mechanism adopts a gear-rack transmission mechanism, and an automatically opening and closing door body is provided on the outer shell. The power mechanism drives the cup holder and the liquid medicine receiving cup to extend out of the outer shell from the opening of the automatically opening and closing door body.

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