Dispensing device

Abstract

The utility model discloses a dispensing device which comprises a medicine storage bottle made of plastic, two ends of the medicine storage bottle are open and located near a first end, a filter screen is arranged in the medicine storage bottle, a switch is arranged on the medicine storage bottle, and the switch is used for opening and closing a channel between the opening of the first end and the opening of a second end. The medicine storage bottle is further provided with an amplification area used for observing medicine liquid in the medicine storage bottle. The first needle body is internally through, a first connecting port is formed in the first needle body, and the first connecting port is configured to be detachably connected with the first end of the medicine storage bottle; the second needle body is internally through, a second connecting port is formed in the second needle body, and the second connecting port is configured to be detachably connected with the second end of the medicine storage bottle; the first needle body and the second needle body are configured to be detachably connected through the first connecting port and the second connecting port. The medicine dispensing efficiency can be improved, and medicine dispensing safety is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a medicine dispenser. Background Art

[0002] At present, 20-ml syringes are generally used for adding medicine clinically, and 50-ml, 5-ml and 1-ml syringes are used when there are special drug compatibilities. When preparing large-volume liquid drugs daily, since the volume of a 20-ml syringe is small, repeated aspiration is required. During the process of repeatedly pulling out and inserting the needle, it is easy to bring out debris in the medicine bottle and cause needlestick injuries. If a 50-ml syringe is used, a large amount of medicine can be aspirated at one time. However, since the needle diameter of a 50-ml syringe is large, it is easy to bring in relatively large debris when injecting the medicine, and the safety of infusion cannot be guaranteed. When dissolving powder, since the powder is easy to agglomerate and difficult to dissolve when encountering liquid, and often adheres to the bottle wall and is not easy to shake down manually, sometimes it is necessary to pressurize with a syringe to wash down the powder. However, when flushing with a syringe under pressure, on the one hand, the needle is easy to come off and contaminate the liquid, increasing the injection risk; on the other hand, it is easy to cause excessive pressure in the bottle and cause the liquid to spray out, polluting the environment and the staff. Summary of the Invention

[0003] The purpose of the utility model is to provide a medicine dispenser which can improve the medicine dispensing efficiency and ensure the safety of medicine dispensing.

[0004] The technical solution is as follows:

[0005] The medicine dispenser of the utility model includes:

[0006] A medicine storage bottle made of plastic, with both ends of the medicine storage bottle open. Near the first end, a filter screen is provided inside the medicine storage bottle. A switch is provided on the medicine storage bottle, and the switch is used to open and close the channel between the opening at the first end and the opening at the second end. An enlarged area for observing the liquid medicine in the medicine storage bottle is also provided on the medicine storage bottle;

[0007] A first needle body with a through interior, and a first connection port is provided on the first needle body. The first connection port is configured to be detachably connected to the first end of the medicine storage bottle;

[0008] A second needle body with a through interior, and a second connection port is provided on the second needle body. The second connection port is configured to be detachably connected to the second end of the medicine storage bottle;

[0009] Through the first connection port and the second connection port, the first needle body and the second needle body are configured to be detachably connected.

[0010] In one embodiment, both the first needle body and the second needle body include a needle sleeve, a needle tip, a needle sleeve buckle, and a connecting rod. The needle sleeve buckle is disposed between the needle tip and the connecting rod. When the needle sleeve is snap-fitted onto the needle sleeve buckle, the needle tip is located within the needle sleeve.

[0011] In one embodiment, a ring-shaped baffle is sleeved on the connecting rod of the second needle body. The first connection port is disposed on the connecting rod of the first needle body, and the second connection port is disposed on the connecting rod of the second needle body.

[0012] In one embodiment, a groove is provided on the side wall of the medicine storage bottle, and a convex lens is installed in the groove, and the groove forms the magnifying area.

[0013] In one embodiment, the medicine storage bottle includes a first bottle body and a second bottle body that are communicated. The volume of the first bottle body is 5 ml, and the volume of the second bottle body is 25 ml.

[0014] In one embodiment, the first bottle body is located at the first end of the medicine storage bottle, and the second bottle body is located at the second end of the medicine storage bottle.

[0015] In one embodiment, a first scale is provided on the side wall of the first bottle body, a second scale is provided on the side wall of the second bottle body, and the magnifying area is provided on the side wall of the first bottle body that is opposite to the first scale.

[0016] In one embodiment, the switch includes a body disposed within the medicine storage bottle. A first channel and a second channel are oppositely provided on the body along the axial direction of the medicine storage bottle. The switch further includes a handle disposed outside the medicine storage bottle. The handle is rotatably connected to the body. When the handle is in the first position, the first channel and the second channel are communicated. When the handle is in the second position, the first channel and the second channel are closed.

[0017] In one embodiment, the switch is disposed between the filter screen and the opening at the first end of the medicine storage bottle.

[0018] In one embodiment, the first end of the medicine storage bottle is provided with a card slot, and the second end is provided with a flange. The end of the first needle body is provided with a flange to form the first connection port. The end of the second needle body is provided with a card slot to form the second connection port. The flange of the first needle body can cooperate with any one of the card slots of the second needle body and the medicine storage bottle. The flange of the medicine storage bottle can cooperate with the card slot of the second needle body.

[0019] The technical solution provided by the present utility model has the following advantages and effects:

[0020] The medicine storage bottle made of plastic can suck and dissolve medicine by squeezing. When dissolving powder medicine, it can wash away the caked and adhering powder medicine by squeezing the storage bottle and accelerate the dissolution of the medicine, improving the efficiency of medicine preparation work. The enlarged area can observe whether the medicine is completely dissolved and whether there are foreign substances in the inhaled medicine, while the filtering area can filter the medicine before entering the solvent to ensure the safety of medicine preparation. Through the detachable connection among the storage bottle, the first needle body and the second needle body, it can be used in various scenarios such as dissolving powder medicine, preparing aqueous solution, and preparing ampoule medicine. Description of the Drawings

[0021] Figure 1 Front view of the medicine storage bottle of the medicine dispenser according to the embodiment of the present utility model;

[0022] Figure 2 Back view of the medicine storage bottle of the medicine dispenser according to the embodiment of the present utility model;

[0023] Figure 3 Front view of the switch of the medicine dispenser according to the embodiment of the present utility model;

[0024] Figure 4 Front view of the first needle body of the medicine dispenser according to the embodiment of the present utility model;

[0025] Figure 5 Front view of the second needle body of the medicine dispenser according to the embodiment of the present utility model;

[0026] Figure 6 Front view after assembly when the medicine dispenser according to the embodiment of the present utility model is used to dissolve powder medicine;

[0027] Figure 7 Back view after assembly when the medicine dispenser according to the embodiment of the present utility model is used to dissolve powder medicine;

[0028] Figure 8 Schematic diagram of the scenario when the medicine dispenser according to the embodiment of the present utility model is used to dissolve powder medicine;

[0029] Figure 9 Front view after assembly when the medicine dispenser according to the embodiment of the present utility model is used to prepare aqueous solution;

[0030] Figure 10 Schematic diagram of the scenario when the medicine dispenser according to the embodiment of the present utility model is used to prepare aqueous solution;

[0031] Figure 11 Schematic diagram of the scenario when the medicine dispenser according to the embodiment of the present utility model is used to prepare ampoule medicine.

[0032] Description of the Reference Numerals:

[0033] 10. Medicine storage bottle, 11. First end, 12. Second end, 13. Filter screen, 14. Switch, 14a. Body, 14b. First channel, 14c. Second channel, 14d. Handle, 15. Magnifying area, 16. First bottle body, 16a. First scale, 17. Second bottle body, 17a. Second scale, 18. Card slot, 19. Flange

[0034] 20. First needle body, 21. Needle sleeve, 22. Needle tip, 23. Needle sleeve buckle, 24. Connecting rod, 25. First connection port

[0035] 30. Second needle body, 31. Needle sleeve, 32. Needle tip, 33. Needle sleeve buckle, 34. Connecting rod, 35. Second connection port, 36. Flap

[0036] 40. Powder bottle, 50. Solvent bottle, 60. Aqueous solution bottle, 70. Ampoule Detailed implementation manners

[0037] For the convenience of understanding the present utility model, the specific embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings of the specification

[0038] Unless otherwise specified or defined, the "first, second..." used herein is only for distinguishing names and does not represent a specific quantity or order

[0039] Unless otherwise specified or defined, the term "and / or" used herein includes any and all combinations of one or more of the related listed items

[0040] It should be noted that "fixed to" and "connected to" herein can be directly fixed or connected to an element, or indirectly fixed or connected to an element

[0041] Since there may be risks of liquid exposure, needlestick injuries and solution contamination during the medicine dispensing process of traditional medicine dispensers. In view of the above problems, the present utility model provides a medicine dispenser. During the dissolution of the powder, the medicine adding process is a fully enclosed process, which can ensure the safety of the staff themselves. The plastic needle body is not easy to scratch the hand, reducing the occurrence of needlestick injuries and splashing and contamination of the liquid medicine. When encountering drugs that are difficult to dissolve or adhere to the bottle wall, the medicine storage bottle can be squeezed and the angle of the liquid medicine port can be adjusted to wash down and dissolve the drugs, which can not only accelerate the drug dissolution, but also dissolve the drugs thoroughly. When inhaling the liquid medicine stored in the ampoule, squeezing the storage bottle can form a negative pressure, and the liquid medicine can be directly sucked out of the ampoule without manual medicine extraction, saving time and effort and improving the medicine dispensing efficiency. When the liquid medicine passes through the filter screen of the medicine storage bottle, impurities such as glass can be filtered out, and it can be observed and judged through the magnifying area whether the filtering is clean, ensuring the safety of medication

[0042] The dispenser in this embodiment is made of disposable sterilized plastic material, such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), etc. The dispenser includes a medicine storage bottle 10, a first needle body 20, and a second needle body 30. The two ends of the medicine storage bottle 10 can be respectively installed with the first needle body 20 and the second needle body 30, and the interiors of the first needle body 20 and the second needle body 30 are through. A channel for the liquid medicine to flow is formed inside the first needle body 20, inside the second needle body 30, and inside the medicine storage bottle 10. Through this channel, the liquid medicine can flow between the powder bottle 40, the medicine storage bottle 10, and the solvent bottle 50.

[0043] Figure 1 It is the front view of the medicine storage bottle, Figure 2 It is the back view of the medicine storage bottle. The interior of the medicine storage bottle 10 is hollow and open at both ends. Near the first end 11, a filter net 13 is installed inside the medicine storage bottle 10. When the liquid medicine passes through the filter net 13, impurities such as glass can be filtered out, and the medicine is filtered before entering the solvent to ensure the safety of infusion. A filtering area is formed between the filter net 13 and the opening of the first end 11. A switch 14 is also installed near the first end 11 of the medicine storage bottle 10. The switch 14 is used to open or close the liquid passage between the opening of the first end 11 and the opening of the second end 12. Specifically, the switch 14 is preferably set between the filter net 13 and the opening at the first end 11 of the medicine storage bottle 10, that is, located in the filtering area, which can better ensure the filtering effect of the medicine entering the solvent and ensure the safety of infusion.

[0044] Figure 3 It is the front view of the switch. The switch 14 includes a body 14a, a first channel 14b, a second channel 14c, and a handle 14d. The body 14a is installed inside the medicine storage bottle 10. The first channel 14b and the second channel 14c are dug on the body 14a, and the first channel 14b and the second channel 14c are relatively arranged along the axial direction of the medicine storage bottle 10. The handle 14d is installed outside the medicine storage bottle 10 and is rotatably connected to the body 14a. When the handle 14d rotates, the direction of the partition inside the body 14a can be rotated. Therefore, when the handle 14d is parallel to the vertical direction, that is, when the handle 14d is in the first position, the first channel 14b and the second channel 14c are connected, and the liquid medicine can flow between the first end 11 and the second end 12 of the medicine storage bottle 10; when the handle 14d is parallel to the horizontal direction, that is, when the handle 14d is in the second position, the first channel 14b and the second channel 14c are closed, and the liquid medicine cannot flow between the first end 11 and the second end 12 of the medicine storage bottle 10.

[0045] It should be noted that the structure of the switch is not limited to the above structure, and other structures can also be used to achieve the function of the liquid channel switch. For example, the entire switch can rotate inside the medicine storage bottle.

[0046] The side wall of the medicine storage bottle 10 is provided with a magnifying area 15, through which the liquid medicine in the medicine storage bottle 10 can be observed to determine whether it is filtered clean, thereby ensuring the safety of medication. In this embodiment, a groove is dug on the side wall of the medicine storage bottle 10, and a convex lens is installed in the groove. Through the convex lens, a magnifying effect can be achieved, and the liquid medicine in the medicine storage bottle 10 can be conveniently observed to observe whether the medicine is completely dissolved and whether there are foreign objects in the inhaled medicine.

[0047] In order to meet the requirements of different dosage ratios of medicines, the medicine storage bottle 10 of this embodiment includes a first bottle body 16 and a second bottle body 17 that are connected to each other. The first bottle body 16 is located at the first end 11 of the medicine storage bottle 10, and the second bottle body 17 is located at the second end 12 of the medicine storage bottle 10. The volume of the first bottle body 16 is 5 ml, and the volume of the second bottle body 17 is 25 ml. This is equivalent to forming a large bottle body with a capacity of 30 ml and a small bottle body with a capacity of 5 ml. In order to intuitively see the amount of liquid in the medicine storage bottle 10, a first scale 16a is set on the side wall of the first bottle body 16, and a second scale 17a is set on the side wall of the second bottle body 17. The first scale 16a is adjacent to the second scale 17a. The magnification area 15 is set on the side wall of the first bottle body 16 away from the first scale 16a.

[0048] A slot 18 is provided at the first end 11 of the medicine storage bottle 10 , and a flange 19 is provided at the second end 12 . Through the slot 18 and the flange 19 , the two ends of the medicine storage bottle 10 can be respectively engaged with the first needle body 20 and the second needle body 30 .

[0049] Figure 4 This is a front view of the first needle body. The first needle body 20 includes a needle sleeve 21, a needle head 22, a needle sleeve buckle 23 and a connecting rod 24. The needle sleeve buckle 23 is located between the needle head 22 and the connecting rod 24. The needle sleeve buckle 23 is in the shape of a truncated cone, and the needle sleeve 21 is similar to a pen cap. The needle sleeve 21 can be engaged with the needle sleeve buckle 23. When the needle sleeve 21 is engaged with the needle sleeve buckle 23, the needle sleeve 21 is sleeved on the needle head 22, and the needle head 22 is located in the needle sleeve 21. The needle head 22 can be protected and the hygiene and safety of the needle head 22 can be ensured. The end of the connecting rod 24 is provided with a flange to form a first connecting port 25 for connecting to the medicine storage bottle 10, which can be engaged with the card slot 18 on the first end 11 of the medicine storage bottle 10.

[0050] Figure 5 : is a front view of the second needle body. The second needle body 30 is similar to the first needle body 20, and also includes a needle sleeve 31, a needle head 32, a needle sleeve buckle 33 and a connecting rod 34. The needle sleeve buckle 33 is located between the needle head 32 and the connecting rod 34. The needle sleeve 31 can be engaged with the needle sleeve buckle 33. When the needle sleeve 31 is engaged with the needle sleeve buckle 33, the needle sleeve 31 is sleeved on the needle head 32, and the needle head 32 is located in the needle sleeve 31. A slot is provided at the end of the connecting rod 34 to form a second connecting port 35 for connecting to the medicine storage bottle 10, which can be engaged with the flange 19 on the second end 12 of the medicine storage bottle 10.

[0051] A ring-shaped retaining piece 36 is also sleeved on the connecting rod 34 of the second needle body 30. When dissolving the powder agent, the second needle body 30 is inserted into the powder agent bottle 40. When the liquid medicine is pressurized and squeezed into the powder agent bottle 40, if the pressure in the powder agent bottle 40 is too high and the liquid sprays out, the retaining piece 36 can block the splashing liquid and prevent contamination of the staff.

[0052] In order to be able to be used in multiple scenarios such as dissolving powder agents, preparing aqueous solutions, and preparing ampoule drugs, in this embodiment, the flange of the first needle body 20 and the card slot of the second needle body 30 can also be engaged with each other, that is, the first connection port 25 of the first needle body 20 can be detachably connected to the second connection port 35 of the second needle body 30.

[0053] It should be noted that it is not limited to the engagement method, and other methods such as screw connection can also be used to achieve the detachable connection between the medicine storage bottle, the first needle body, and the second needle body.

[0054] Figure 6 Figure 12 is a front view of the medicine dispenser according to the embodiment of the present utility model after being assembled for dissolving powder agents; Figure 7 Figure 14 is a rear view of the medicine dispenser after being assembled for dissolving powder agents. Figure 8 Figure 16 is a schematic diagram of the scenario for dissolving powder agents.

[0055] When dissolving the powder agent, first combine the three parts of the medicine dispenser, and turn the handle 14d to the upper or lower side to keep the liquid medicine channel unobstructed. Then connect the second needle body 30 to the powder agent bottle 40 containing the medicine, connect the first needle body 20 to the solvent bottle 50, and inject the solvent into the powder agent bottle 40 by squeezing the second bottle body 17 of the medicine storage bottle 10 to dissolve the medicine. After the medicine is dissolved, it can be observed through the magnifying area 15 whether the medicine is completely dissolved. Then squeeze the second bottle body 17 of the medicine storage bottle 10, and inject the medicine into the solvent bottle 50 through the filter screen 13 to complete the medicine preparation. When dissolving the powder agent, when encountering drugs that are difficult to dissolve or adhere to the bottle wall, the drugs can be washed down and dissolved by squeezing the medicine storage bottle 10 and adjusting the angle of the liquid medicine port, which can not only accelerate the dissolution of the medicine but also dissolve the medicine completely. When the liquid medicine passes through the filter screen 13 of the medicine storage bottle 10, impurities such as glass can be filtered out, and it can be observed through the magnifying area 15 to judge whether the filtration is clean in the transparent pot (the section of the medicine storage bottle where the magnifying area is located) to ensure the safety of drug use. Moreover, when dissolving the powder agent, the medicine adding process is a completely closed process. The closed operation mode can ensure the safety of the staff themselves. The plastic needle body is not easy to scratch the hand, reducing the occurrence of needle stick injuries and liquid medicine splashing and contamination events, and can ensure the safety of patient infusion and reduce the occurrence of medical dispute events.

[0056] Figure 9 Figure 23 is a front view of the medicine dispenser according to the embodiment of the present utility model after being assembled for preparing aqueous solutions; Figure 10It is a schematic diagram of the scenario when preparing the aqueous solution agent.

[0057] When preparing the aqueous solution agent, first combine the two parts of the first needle body 20 and the second needle body 30. Connect the first needle body 20 into the solvent bottle 50, and then connect the second needle body 30 into the aqueous solution bottle 60 containing the drug. Inject the air in the bottle into the aqueous solution bottle 60 by squeezing the solvent bottle 50 to form a negative pressure, and then suck the aqueous solution into the solvent bottle 50 through the negative pressure to complete the drug preparation.

[0058] Figure 11 It is a schematic diagram of the scenario when preparing ampoule drugs.

[0059] When preparing ampoule drugs, combine the two parts of the second needle body 30 and the medicine storage bottle 10, and turn the handle 14d to the left or right to keep the channel closed. Insert the second needle body 30 into the ampoule 70, and suck the drug into the body of the medicine storage bottle 10 by squeezing the second bottle body 17 of the medicine storage bottle 10 for storage. Check whether there are impurities in the medicine through the magnifying area 15. If there are no impurities, the second needle body 30 can be inserted into the solvent bottle, and then squeeze the second bottle body 17 of the medicine storage bottle 10 to inject the drug into the solvent bottle to complete the drug preparation. The appliance is simple to operate, time-saving and labor-saving, and can enable the staff to quickly learn and use it. When sucking the liquid medicine stored in the ampoule 70, squeezing the storage bottle 10 can form a negative pressure, and the liquid medicine can be directly sucked out of the ampoule 70 without manual drug extraction, which is time-saving and labor-saving.

[0060] Therefore, the drug preparation device of this embodiment can be used for drug dissolution and liquid drug preparation. The second needle body 30 has a suction port. During the operation process, the drug can be sucked in or the solution can be squeezed out to dissolve the medicine by squeezing the medicine storage bottle 10, and the drug can be accurately prepared through the scale of the medicine storage bottle 10; moreover, the first needle body 20 only needs to be punctured once to complete the drug preparation, without repeatedly puncturing into the drug preparation bottle; in addition, the drug preparation process is sealed, which ensures the safety of medical staff during drug preparation and the safety of patients during infusion.

[0061] This appliance is a disposable sterilized medical appliance. It is recommended to be used by a specific person only and discarded after use.

[0062] To sum up, the medicine storage bottle sucks and dissolves the drug by squeezing, which is more time-saving and labor-saving than the traditional syringe aspiration method; before the drug enters the solvent bottle, the filter screen and magnifying area can ensure no impurities, improving the safety of the drug. When dissolving the powder, the caked powder and the attached powder can be washed away and the drug dissolution can be accelerated by squeezing the medicine storage bottle, improving the efficiency of the drug preparation work. Moreover, the baffle can effectively prevent drug contamination and ensure the safety of drug use; the medicine storage bottle is divided into a large bottle body with a capacity of 30 ml and a small bottle body with a capacity of 5 ml, which can meet different dosage drug ratios. The bottle body is equipped with a magnifying area and a filtering area. The magnifying area can observe whether the drug is completely dissolved and whether there are foreign objects in the inhaled drug, while the filtering area can filter the drug and then enter the solvent to ensure the safety of infusion.

[0063] The above embodiments are not an exhaustive list based on the present utility model. In addition, there may be multiple other embodiments not listed. Any substitution and improvement made on the basis of not violating the concept of the present utility model fall within the protection scope of the present utility model.

Claims

1. A dispenser, characterized in that, Comprising: A medicine storage bottle made of plastic, with both ends of the medicine storage bottle open. Near the first end, a filter screen is provided inside the medicine storage bottle. A switch is provided on the medicine storage bottle, and the switch is used to open and close the channel between the opening at the first end and the opening at the second end. An enlarged area for observing the liquid medicine inside the medicine storage bottle is also provided on the medicine storage bottle; A first needle body with a through interior, and a first connection port is provided on the first needle body. The first connection port is configured to be detachably connected to the first end of the medicine storage bottle; A second needle body with a through interior, and a second connection port is provided on the second needle body. The second connection port is configured to be detachably connected to the second end of the medicine storage bottle; Through the first connection port and the second connection port, the first needle body and the second needle body are configured to be detachably connected.

2. The dispenser according to claim 1, characterized in that, Both the first needle body and the second needle body include a needle sleeve, a needle tip, a needle sleeve buckle, and a connecting rod. The needle sleeve buckle is provided between the needle tip and the connecting rod. When the needle sleeve is snapped onto the needle sleeve buckle, the needle tip is located inside the needle sleeve.

3. The dispenser according to claim 2, characterized in that, A ring-shaped retaining piece is sleeved on the connecting rod of the second needle body. The first connection port is provided on the connecting rod of the first needle body, and the second connection port is provided on the connecting rod of the second needle body.

4. The dispenser according to claim 1, characterized in that, A groove is provided on the side wall of the medicine storage bottle, and a convex lens is installed in the groove. The groove forms the enlarged area.

5. The dispenser according to claim 1, characterized in that, The medicine storage bottle includes a first bottle body and a second bottle body that are connected. The volume of the first bottle body is 5 ml, and the volume of the second bottle body is 25 ml.

6. The dispenser according to claim 5, characterized in that, The first bottle body is located at the first end of the medicine storage bottle, and the second bottle body is located at the second end of the medicine storage bottle.

7. The dispenser according to claim 6, characterized in that, A first scale is provided on the side wall of the first bottle body, and a second scale is provided on the side wall of the second bottle body. The enlarged area is provided on the side wall of the first bottle body that is opposite to the first scale.

8. The dispenser according to claim 1, characterized in that, The switch includes a body provided inside the medicine storage bottle. A first channel and a second channel are provided on the body opposite to each other along the axial direction of the medicine storage bottle. The switch further includes a handle provided outside the medicine storage bottle. The handle is rotatably connected to the body. When the handle is in the first position, the first channel and the second channel are in communication. When the handle is in the second position, the first channel and the second channel are closed.

9. The dispenser according to claim 8, characterized in that, The switch is provided between the filter screen and the opening at the first end of the medicine storage bottle.

10. The dispenser according to any one of claims 1-9, characterized in that, A card slot is provided at the first end of the medicine storage bottle, and a flange is provided at the second end. A flange is provided at the end of the first needle body to form the first connection port. A card slot is provided at the end of the second needle body to form the second connection port. The flange of the first needle body can cooperate with any one of the card slots of the second needle body and the card slot of the medicine storage bottle. The flange of the medicine storage bottle can cooperate with the card slot of the second needle body.

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