Drug delivery device

Abstract

The application relates to the technical field of medical devices, and provides a medicine administration device. A transfer bottle located in a second containing groove extracts liquid from a liquid bottle located in a first containing groove, the transfer bottle containing the liquid is clamped in a fourth containing groove and is mixed with a medicine bottle located in a third containing groove to form mixed liquid, and then the transfer bottle extracts the mixed liquid from the medicine bottle. The medicine administration device is formed by arranging a first adapter, a second adapter, a liquid bottle, a medicine bottle and a transfer bottle, the medicine administration device can simply and quickly configure and transfer medicine liquid. During the process of transferring and extracting the medicine liquid, the medicine administration device can reduce the possibility of contact between the medicine liquid and the outside world and the possibility of contamination of the medicine liquid.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a drug delivery device. Background Technology

[0002] To address the issue that some pharmaceutical agents lose their activity when pre-prepared as a liquid and cannot be stored in liquid form, powdered or lyophilized powdered formulations have been developed. When using powdered or lyophilized powdered formulations, they must first be dissolved in a liquid.

[0003] Existing drug delivery devices use a standard syringe to draw liquid from a vial, then inject the liquid into a medication vial through the syringe needle. The liquid and medication mix to form a solution, which is then drawn off with the syringe for infusion. However, the existing drug delivery devices are prone to contamination during the drug transfer process. Summary of the Invention

[0004] In view of this, the main technical problem to be solved by this application is to provide a drug delivery device that can reduce the possibility of drug liquid being contaminated.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is to provide a drug delivery device. The drug delivery device includes: a first adapter, comprising a first sub-adapter, a second sub-adapter, and a first puncture needle; the first sub-adapter has a first receiving groove, the second sub-adapter has a second receiving groove, one end of the first puncture needle passes through the first sub-adapter and is located within the first receiving groove, and the other end of the first puncture needle passes through the second sub-adapter and is located within the second receiving groove; a second adapter, comprising a third sub-adapter, a fourth sub-adapter, and a second puncture needle; the third sub-adapter has a third receiving groove, the fourth sub-adapter has a fourth receiving groove, one end of the second puncture needle passes through the third sub-adapter and is located within the third receiving groove, and the other end of the second puncture needle passes through... A fourth sub-adapter is located in a fourth receiving tank; a liquid bottle containing liquid is snapped into a first receiving tank, and one end of a first puncture needle passes through the liquid bottle; a medicine bottle containing medicine is snapped into a third receiving tank, and one end of a second puncture needle passes through the medicine bottle; a transfer bottle is snapped into the second and fourth receiving tanks, and one end of a first puncture needle and one end of a second puncture needle pass through the transfer bottle; wherein, the transfer bottle located in the second receiving tank draws liquid from the liquid bottle located in the first receiving tank, the transfer bottle containing liquid is snapped into the fourth receiving tank and mixes with the medicine bottle located in the third receiving tank to form a mixture, and then the transfer bottle draws the mixture from the medicine bottle.

[0006] In some embodiments of this application, the second sub-adapter structure and the fourth sub-adapter structure are the same, the first sub-adapter structure and the second sub-adapter structure are different, and the third sub-adapter structure and the fourth sub-adapter structure are different.

[0007] In some embodiments of this application, the transfer bottle includes a transfer bottle body and a transfer bottle crown, with a transfer bottleneck recessed between the transfer bottle body and the transfer bottle crown; the second sub-adapter includes a plurality of circumferentially spaced first elastic arms, each of which has a first limiting portion on one side facing the transfer bottle, and the first limiting portion engages with the transfer bottleneck.

[0008] In some embodiments of this application, the second sub-adapter includes a plurality of second elastic arms arranged circumferentially, a plurality of first elastic arms surrounding a second receiving groove, the second elastic arms being engaged with the transfer bottle body, and the plurality of first elastic arms being located within the second receiving groove.

[0009] In some embodiments of this application, a guide slope is provided on the side of the second elastic arm away from the first sub-adapter and facing the transfer bottle, and the guide slope is inclined downward in the radial direction from the second elastic arm to the first elastic arm.

[0010] In some embodiments of this application, the second sub-adapter includes an adapter sidewall that surrounds a second receiving groove. A notch is provided at one end of the adapter sidewall away from the first sub-adapter. One of the adapter sidewall and the transfer bottle is provided with a snap-fit ​​part, and the other is provided with a snap-fit ​​hole. The transfer bottle enters the second receiving groove through the notch, and the snap-fit ​​part and the snap-fit ​​hole snap together.

[0011] In some embodiments of this application, when the adapter sidewall passes through the snap-fit ​​hole, a movable groove is provided on the inner sidewall of the adapter sidewall, and the end of the movable groove is connected to the snap-fit ​​hole.

[0012] In some embodiments of this application, the transfer bottle includes a transfer bottle body, a piston, and a push rod. The piston is threadedly connected to one end of the push rod, and the piston is pushed and pulled into the transfer bottle body along with the push rod.

[0013] In some embodiments of this application, the first sub-adapter structure and the second sub-adapter structure are the same, and the liquid bottle structure and the medicine bottle structure are the same.

[0014] In some embodiments of this application, the liquid bottle includes a liquid bottle body and a liquid bottle crown, with a liquid bottleneck recessed between the liquid bottle body and the liquid bottle crown; the first sub-adapter includes a plurality of circumferentially spaced third elastic arms, with a second limiting portion protruding from one end of the third elastic arm near the second sub-adapter and facing the first receiving groove, the second limiting portion engaging with the liquid bottleneck.

[0015] In some embodiments of this application, the first adapter further includes two symmetrically arranged first connecting portions, with the first puncture needle located on the symmetrical line between the two first connecting portions; the first connecting portions are arc-shaped, with one end connected to the first sub-connector and the other end connected to the second sub-connector.

[0016] The beneficial effects of this application are as follows: Unlike the prior art, this application provides a drug delivery device. The drug delivery device is formed by assembling a first adapter, a second adapter, a liquid bottle, a medicine bottle, and a transfer bottle. This drug delivery device allows for simple and rapid preparation and transfer of drug solutions. During the transfer and extraction of drug solutions, the drug delivery device can reduce the possibility of the drug solution coming into contact with the external environment and lower the possibility of drug contamination. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 This is a front view of an embodiment of the first adapter of this application;

[0019] Figure 2 This is a cross-sectional view of an embodiment of the first adapter of this application;

[0020] Figure 3 This is a schematic diagram of an embodiment of the medicine bottle being attached to the third receiving groove in this application;

[0021] Figure 4 This is a schematic diagram of an embodiment of the liquid bottle being attached to the first receiving tank according to this application;

[0022] Figure 5 This is a schematic diagram of an embodiment of liquid extraction using a transfer bottle according to this application;

[0023] Figure 6 This is a schematic diagram of the structure of an embodiment of the mixing of liquid and pharmaceutical agent according to this application;

[0024] Figure 7 This is a schematic diagram of an embodiment of the transfer bottle for extracting the mixture according to this application;

[0025] Figure 8 This is a schematic diagram of the structure of a transfer bottle according to an embodiment of this application;

[0026] Figure 9 This is an exploded view of an embodiment of the transfer bottle of this application;

[0027] Figure 10 This is an exploded view of an embodiment of liquid extraction using a transfer bottle according to this application;

[0028] Figure 11 This is a schematic diagram of another embodiment of the transfer bottle of this application;

[0029] Figure 12This is an exploded view of another embodiment of the transfer bottle in this application;

[0030] Figure 13 This is a schematic diagram of another embodiment of the first adapter of this application;

[0031] Figure 14 This is a cross-sectional view of another embodiment of the first adapter of this application;

[0032] Figure 15 This is a schematic diagram of another embodiment of the liquid extraction vial in this application;

[0033] Figure 16 This is an exploded view of another embodiment of liquid extraction vial in this application;

[0034] Figure 17 This is a cross-sectional view of the transfer bottle in one embodiment of this application with the push rod removed;

[0035] Figure 18 This is a schematic diagram of the structure of an embodiment of the liquid bottle of this application;

[0036] Figure 19 This is a schematic diagram of the structure of an embodiment of the medicine bottle of this application.

[0037] Reference numerals: 1. First adapter; 11. First sub-adapter; 110. First receiving groove; 111. First top wall; 112. Third elastic arm; 113. Second limiting part; 12. Second sub-adapter; 120. Second receiving groove; 121. Second top wall; 122. First groove; 1211. First elastic arm; 1212. Second elastic arm; 12121. Guide slope; 1213. First limiting part; 1221. Adapter side wall; 12211. Notch; 12212. Moving groove; 1222. Snap-fit ​​hole; 1223. Snap-fit ​​part; 13. First puncture needle; 14. First connecting part; 15. Tube; 2. Second adapter; 21 210. Third sub-adapter; 22. Third receiving groove; 23. Fourth sub-adapter; 24. Fourth receiving groove; 25. Second puncture needle; 26. Second connecting part; 3. Liquid bottle; 37. Liquid; 38. Liquid bottle body; 39. Liquid bottle crown; 30. Liquid bottle neck; 30. Transfer bottle stopper; 40. Bottle body closure; 41. Medicine bottle; 42. Medicine bottle body; 43. Medicine bottle crown; 44. Medicine bottle neck; 45. Medicine bottle stopper; 51. Transfer bottle; 52. Mixture; 53. Transfer bottle crown; 54. Transfer bottle neck; 55. Transfer bottle stopper; 56. Piston; 57. Push rod; 58. Sealing ring; 59. Transfer bottle cap. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0039] This application provides a drug delivery device. The drug delivery device includes a first adapter, a second adapter, a liquid bottle, a medicine bottle, and a transfer bottle.

[0040] Please see Figure 1 and Figure 2 , Figure 1 This is a front view of an embodiment of the first adapter of this application. Figure 2 This is a cross-sectional view of an embodiment of the first adapter of this application; the first adapter 1 includes a first sub-adapter 11, a second sub-adapter 12, and a first puncture needle 13. The opening of the first sub-adapter 11 and the opening of the second sub-adapter 12 point in opposite directions. The first puncture needle 13 is located between the first sub-adapter 11 and the second sub-adapter 12. The first sub-adapter 11 has a first receiving groove 110. The second sub-adapter 12 has a second receiving groove 120. The opening of the first receiving groove 110 and the opening of the second receiving groove 120 are coaxial and point in opposite directions.

[0041] The first sub-adapter 11 and the second sub-adapter 12 have a U-shaped structure. The first sub-adapter 11 has a longitudinal central axis and a transverse first top wall 111. The second sub-adapter 12 has a longitudinal central axis and a transverse second top wall 121. The central axis of the first sub-adapter 11 and the central axis of the second sub-adapter 12 are coaxial. The first top wall 111 and the second top wall 121 are arranged adjacent to each other, so that the opening of the first sub-adapter 11 and the opening of the second sub-adapter 12 point in opposite directions, that is, the opening of the first receiving groove 110 and the opening of the second receiving groove 120 point in opposite directions.

[0042] The first puncture needle 13 has two pointed ends for inserting into the first adapter 1, liquid bottle 3, medicine bottle 4, transfer bottle 5, etc. The first puncture needle 13 can be located on the central axis of the first adapter 1. The two ends of the first puncture needle 13 are located in the first receiving groove 110 and the second receiving groove 120, respectively. One end of the first puncture needle 13 passes through the first sub-adapter 11 and is located in the first receiving groove 110. The other end of the first puncture needle 13 passes through the second sub-adapter 12 and is located in the second receiving groove 120. The first puncture needle 13 has a hollow structure. Substances in the first receiving groove 110 can flow from the first puncture needle 13 to the second receiving groove 120, or substances in the second receiving groove 120 can flow from the first puncture needle 13 to the first receiving groove 110.

[0043] The first adapter 1 can be assembled in a manner including, but not limited to, integral molding and detachable connection. When the first adapter 1 is detachable, the first adapter 1 can be assembled in a manner where the first top wall 111 is connected to the second top wall 121, and the first puncture needle 13 passes through the first top wall 111 and the second top wall 121 simultaneously, so that both ends of the first puncture needle 13 are located in the first receiving groove 110 and the second receiving groove 120 at the same time, thereby forming the first adapter 1.

[0044] Please see Figure 3 , Figure 3 This is a schematic diagram of an embodiment of the present application where the medicine bottle is attached to the third receiving groove. The second adapter 2 includes a third sub-adapter 21, a fourth sub-adapter 22, and a second puncture needle 23. The opening of the third sub-adapter 21 and the opening of the fourth sub-adapter 22 point in opposite directions. The second puncture needle 23 is located between the third sub-adapter 21 and the fourth sub-adapter 22. The third sub-adapter 21 forms a third receiving groove 210. The fourth sub-adapter 22 forms a fourth receiving groove 220. The opening of the third receiving groove 210 and the opening of the fourth receiving groove 220 are on the same axis but point in opposite directions.

[0045] The third sub-adapter 21 and the fourth sub-adapter 22 have a U-shaped structure. The third sub-adapter 21 has a longitudinal central axis and a transverse third top wall. The fourth sub-adapter 22 has a longitudinal central axis and a transverse fourth top wall. The central axis of the third sub-adapter 21 and the central axis of the fourth sub-adapter 22 are coaxial. The third and fourth top walls are arranged adjacent to each other, so that the opening of the third sub-adapter 21 and the opening of the fourth sub-adapter 22 point in opposite directions, that is, the opening of the third receiving groove 210 and the opening of the fourth receiving groove 220 point in opposite directions.

[0046] The two ends of the second puncture needle 23 can be pointed, used for inserting the second adapter 2, liquid bottle 3, medicine bottle 4, transfer bottle 5, etc. The second puncture needle 23 can be located on the central axis of the second adapter 2. The two ends of the second puncture needle 23 are respectively located in the third receiving groove 210 and the fourth receiving groove 220. One end of the second puncture needle 23 passes through the third sub-adapter 21 and is located in the third receiving groove 210. The other end of the second puncture needle 23 passes through the fourth sub-adapter 22 and is located in the fourth receiving groove 220. The second puncture needle 23 has a hollow structure. The substance in the third receiving groove 210 flows from the second puncture needle 23 to the fourth receiving groove 220, or the substance in the fourth receiving groove 220 flows from the second puncture needle 23 to the third receiving groove 210.

[0047] The second adapter 2 can be assembled in various ways, including but not limited to integral molding and detachable connection. When the second adapter 2 is detachable, the second adapter 2 can be assembled by connecting the third top wall and the fourth top wall, with the second puncture needle 23 passing through both the third top wall and the fourth top wall, so that both ends of the second puncture needle 23 are located in the third receiving groove 210 and the fourth receiving groove 220 at the same time, thereby forming the second adapter 2.

[0048] Please see Figure 4 , Figure 4 This is a schematic diagram of an embodiment of the liquid bottle being snapped into the first receiving tank. The liquid bottle 3 contains liquid 31. Liquid 31 is sealed inside the liquid bottle 3, reducing the possibility of liquid 31 coming into contact with the outside world. Liquid 31 includes, but is not limited to, liquid contents in the form of a diluent or active ingredient. The liquid bottle 3 is snapped into the first receiving tank 110. That is, the liquid bottle 3 is fixed inside the first receiving tank 110, and the liquid bottle 3 is snapped into the first sub-adapter 11, so that the liquid bottle 3 and the first sub-adapter 11 will not fall off under natural conditions. While the liquid bottle 3 is snapped into the first receiving tank 110, one end of the first puncture needle 13 penetrates the liquid bottle 3, further reducing the contact of liquid 31 with the outside world, thereby reducing the probability of liquid 31 being contaminated.

[0049] Please see Figure 3 The medicine bottle 4 contains medicine 41. Medicine 41 is sealed inside the medicine bottle 4, reducing the possibility of medicine 41 coming into contact with the outside world. The type of medicine 41 includes, but is not limited to, powder, solid, or liquid 31. The medicine bottle 4 is snapped into the third receiving groove 210. That is, the medicine bottle 4 is fixed in the third receiving groove 210, and the medicine bottle 4 is snapped into the third sub-adapter 21, so that the medicine bottle 4 and the third sub-adapter 21 will not fall off in the natural state. While the medicine bottle 4 is snapped into the third receiving groove 210, one end of the second puncture needle 23 passes through the medicine bottle 4, further reducing the contact of medicine 41 with the outside world, thereby reducing the probability of medicine 41 being contaminated.

[0050] The transfer bottle 5 is snapped into the second receiving groove 120 and the fourth receiving groove 220. When the transfer bottle 5 is snapped into the second receiving groove 120, the transfer bottle 5 is fixed inside the second receiving groove 120, and the transfer bottle 5 is snapped into the second sub-adapter 12. When the transfer bottle 5 is snapped into the fourth receiving groove 220, the transfer bottle 5 is fixed inside the fourth receiving groove 220, and the transfer bottle 5 is snapped into the fourth sub-adapter 22.

[0051] One end of the first puncture needle 13 is inserted through a transfer bottle 5, and the other end of the first puncture needle 13 is inserted through a liquid bottle 3. Liquid 31 in the liquid bottle 3 located in the first receiving tank 110 flows from the first puncture needle 13 to the transfer bottle 5 in the second receiving tank 120. One end of the second puncture needle 23 is inserted through a transfer bottle 5, and the other end of the second puncture needle 23 is inserted through a medicine bottle 4. Liquid 31 in the transfer bottle 5 located in the fourth receiving tank 220 flows from the second puncture needle 23 to the medicine bottle 4 located in the third receiving tank 210.

[0052] In one specific embodiment, the transfer bottle 5 can be a needleless injection tube, which facilitates the extraction of liquid 31 or a mixture of medicines 51 from the liquid bottle 3.

[0053] In one specific embodiment, there is a negative pressure in the medicine bottle 4. Under the action of the pressure difference, the liquid 31 in the transfer bottle 5 located in the fourth receiving tank 220 flows from the second puncture needle 23 to the medicine bottle 4 located in the third receiving tank 210.

[0054] Please see Figures 5 to 7 , Figure 5 This is a schematic diagram of an embodiment of liquid extraction using a transfer bottle according to this application; Figure 6 This is a schematic diagram of the structure of an embodiment of the mixing of liquid and pharmaceutical agent according to this application; Figure 7 This is a schematic diagram of an embodiment of the transfer bottle for extracting a mixture according to this application. The transfer bottle 5 located in the second receiving tank 120 extracts liquid 31 from the liquid bottle 3 located in the first receiving tank 110. The transfer bottle 5 containing liquid 31 is snapped into the fourth receiving tank 220 and mixed with the medicine bottle 4 located in the third receiving tank 210 to form a mixture 51. Then, the transfer bottle 5 extracts the mixture 51 from the medicine bottle 4.

[0055] The transfer bottle 5 containing the mixture 51 can be matched with an injection device as needed, including but not limited to an electric injection system and injectable drugs. In one specific embodiment, the transfer bottle 5 containing the mixture 51 is matched with an electric injection system to improve the accuracy of drug administration.

[0056] The process of mixing a drug solution using the drug delivery device provided in this application embodiment may include:

[0057] Liquid bottle 3 is engaged with the first receiving groove 110, and the first puncture needle 13 located in the first receiving groove 110 passes through liquid bottle 3. Transfer bottle 5 is engaged with the second receiving groove 120, and the first puncture needle 13 located in the second receiving groove 120 passes through transfer bottle 5. Transfer bottle 5 draws liquid 31 from liquid bottle 3 located in the first receiving groove 110, and liquid 31 from liquid bottle 3 flows into transfer bottle 5 through the first puncture needle 13. Transfer bottle 5 located in the second receiving groove 120 is separated from the first adapter 1. Medicine bottle 4 is engaged with the third receiving groove 210, and the second puncture needle 23 located in the third receiving groove 210 passes through medicine bottle 4. Transfer bottle 5 containing liquid 31 is engaged with the fourth receiving groove 220, and the second puncture needle 23 located in the fourth receiving groove 220 passes through transfer bottle 5 containing liquid 31. Liquid 31 in transfer bottle 5 flows through the second puncture needle 23 into drug bottle 4, where it mixes with drug 41 to form mixture 51. After mixing, the mixture 51 is drawn from drug bottle 4 and flows from the second puncture needle 23 back into transfer bottle 5. Transfer bottle 5, containing mixture 51, is then connected to an electric injector to improve drug administration accuracy.

[0058] The above-described method comprises a first adapter 1, a second adapter 2, a liquid bottle 3, a medicine bottle 4, and a transfer bottle 5, forming a drug delivery device. This device allows for the simple and rapid preparation and transfer of medication. During the transfer and extraction of medication, the device minimizes the possibility of the medication coming into contact with the external environment, reducing the risk of contamination.

[0059] In one embodiment, the second sub-adapter 12 has the same structure as the fourth sub-adapter 22. The first sub-adapter 11 has a different structure from the second sub-adapter 12. The third sub-adapter 21 has a different structure from the fourth sub-adapter 22.

[0060] Specifically, the second sub-adapter 12 is snapped into the transfer bottle 5, and the fourth sub-adapter 22 is snapped into the transfer bottle 5. By making the structure of the second sub-adapter 12 the same as that of the fourth sub-adapter 22, the structure of the drug delivery device for transferring the mixed liquid 51 is made simpler, thereby improving the speed of rapid preparation and transfer of the drug solution.

[0061] The first sub-adapter 11 snaps into the liquid bottle 3, and the second sub-adapter 12 snaps into the transfer bottle 5. When the structure of the liquid bottle 3 is different from that of the transfer bottle 5, the structure of the first sub-adapter 11 can be different from that of the second sub-adapter 12.

[0062] The third sub-adapter 21 is snapped into the medicine bottle 4, and the fourth sub-adapter 22 is snapped into the transfer bottle 5. When the structure of the medicine bottle 4 is different from that of the transfer bottle 5, the structure of the third sub-adapter 21 can be different from that of the fourth sub-adapter 22.

[0063] In another embodiment, the structure of the second sub-adapter 12 may differ from that of the fourth sub-adapter 22, both of which can be matched with the transfer bottle 5. When the transfer bottle 5 has the same or different structures, it can be matched with the second sub-adapter 12 and the fourth sub-adapter 22 with the aforementioned different structures.

[0064] Please see Figure 8 and Figure 9 , Figure 8 This is a schematic diagram of the structure of a transfer bottle according to an embodiment of this application; Figure 9 This is an exploded view of an embodiment of the transfer bottle of this application. In one embodiment, the transfer bottle 5 includes a transfer bottle body 52 and a transfer bottle crown 53. The opening of the transfer bottle body 52 facing the second receiving groove 120 or the fourth receiving groove 220 is the transfer bottle crown 53. A transfer bottle neck 54 is recessed between the transfer bottle body 52 and the transfer bottle crown 53. The diameter of the transfer bottle neck 54 is smaller than the diameter of the transfer bottle body 52 and the diameter of the transfer bottle crown 53.

[0065] In one embodiment, the transfer bottle crown 53 is sealed by a transfer bottle stopper 55. The transfer bottle stopper 55 is placed inside the transfer bottle crown 53. A bottle closure 36 is provided on the outside of the transfer bottle stopper 55 and the transfer bottle crown 53 to reseal them. The bottle closure 36 may include, but is not limited to, an aluminum strip, a silicone protective ring, etc.

[0066] Please see Figure 1 , Figure 2 and Figure 10 , Figure 10 This is an exploded view of an embodiment of the liquid extraction 31 from the transfer bottle of this application. In one embodiment, the second sub-adapter 12 includes a plurality of circumferentially spaced first elastic arms 1211. A first limiting portion 1213 is provided on one side of the first elastic arm 1211 facing the transfer bottle 5. The first limiting portion 1213 is engaged with the neck 54 of the transfer bottle.

[0067] Specifically, the second top wall 121 extends toward the transfer bottle 5 to form a plurality of first elastic arms 1211. Adjacent first elastic arms 1211 are spaced apart along the circumference of the second top wall 121.

[0068] When the transfer bottle 5 is engaged in the second receiving groove 120, the first elastic arm 1211 is pushed outward by the transfer bottle crown 53 and undergoes elastic deformation. After the transfer bottle 5 is installed in place, the first elastic arm 1211 returns to its original shape. At this time, the first limiting part 1213 is engaged in the transfer bottle neck 54, and the first elastic arm 1211 is engaged in the transfer bottle crown 53, thereby reducing the possibility of the transfer bottle 5 falling off in its natural state.

[0069] In one embodiment, the second top wall 121 of the second sub-adapter 12 is recessed towards the first sub-adapter 11 to form a first groove 122. The size of the first groove 122 is the same as the size of the transfer bottle 5 tube. When the transfer bottle 5 is engaged in the second receiving groove 120, the transfer bottle 5 tube can be engaged in the first groove 122. This configuration further improves the stability of the transfer bottle 5 being engaged in the second receiving groove 120, and at the same time keeps the transfer bottle 5 and the second sub-adapter 12 coaxial, increasing the probability that the first puncture needle 13 will penetrate the transfer bottle stopper 55, and reducing the possibility of the transfer bottle 5 moving radially within the second receiving groove 120.

[0070] In one embodiment, the second sub-adapter 12 includes a plurality of circumferentially spaced second elastic arms 1212. The plurality of second elastic arms 1212 surround to form a second receiving groove 120. The second elastic arms 1212 are engaged with the transfer bottle body 52. ​​A plurality of first elastic arms 1211 are located within the second receiving groove 120.

[0071] Specifically, the second top wall 121 extends towards the transfer bottle 5 to form a plurality of second elastic arms 1212. Adjacent second elastic arms 1212 are spaced apart circumferentially along the second top wall 121. The arm length of the second elastic arm 1212 is greater than the arm length of the first elastic arm 1211. The first elastic arm 1211 and the second elastic arm 1212 are arranged adjacent to each other.

[0072] During the process of the transfer bottle 5 being engaged with the second receiving groove 120, the first limiting part 1213 is engaged with the transfer bottle neck 54, while the second elastic arm 1212 is engaged with the transfer bottle body 52, thereby reducing the probability of the transfer bottle 5 swaying and displacing in the radial direction of the second elastic arm 1212.

[0073] In one embodiment, a guide slope 12121 is provided on the side of the second elastic arm 1212 that is away from the first sub-adapter 11 and facing the transfer bottle 5. The guide slope 12121 slopes downward in the radial direction from the second elastic arm 1212 toward the first elastic arm 1211. The second elastic arm 1212 has a certain thickness. The guide slope 12121 is formed by the second elastic arm 1212 sloping in the radial direction from the outer side away from the transfer bottle 5 toward the inner side closer to the transfer bottle 5. By providing the guide slope 12121, it can play a guiding role when the transfer bottle 5 is engaged with the second receiving groove 120, and at the same time, when the transfer bottle 5 is engaged with the second receiving groove 120, it is convenient for the second elastic arm 1212 to be stretched outward and undergo elastic deformation.

[0074] In one embodiment, a guide slope 12121 is also provided on the side of the first elastic arm 1211 that is away from the first sub-adapter 11 and faces the transfer bottle 5. The first elastic arm 1211 has a certain thickness. The guide slope 12121 is formed by the first elastic arm 1211 tilting in the radial direction from the outer side away from the transfer bottle 5 to the inner side closer to the transfer bottle 5. By providing the guide slope 12121, it can play a guiding role when the transfer bottle 5 is engaged with the second receiving groove 120, and at the same time, when the transfer bottle 5 is engaged with the second receiving groove 120, it is convenient for the first elastic arm 1211 to be stretched outward and undergo elastic deformation.

[0075] The process of installing the transfer bottle 5 using the second sub-adapter 12 provided in the above embodiment may include:

[0076] The transfer bottle crown 53 of the transfer bottle 5 moves towards the second top wall 121 along the guide slope 12121 of the second elastic arm 1212. The transfer bottle crown 53 moves to the guide slope 12121 of the first elastic arm 1211. The first elastic arm 1211 expands outward and undergoes elastic deformation. At the same time, the transfer bottle crown 53 moves into the first elastic arm 1211. The transfer bottle crown 53 is engaged with the first groove 122. The first elastic arm 1211 returns to its original deformation. The first limiting part 1213 is engaged with the transfer bottle neck 54. The second elastic arm 1212 is engaged with the transfer bottle body 52, thereby completing the engagement of the transfer bottle 5 into the second receiving groove 120.

[0077] Please see Figure 11 and Figure 12 , Figure 11 This is a schematic diagram of another embodiment of the transfer bottle of this application; Figure 12 This is an exploded view of another embodiment of the transfer bottle of this application. In one embodiment, the transfer bottle 5 includes a transfer bottle body 52 and a transfer bottle crown 53. The opening of the transfer bottle body 52 facing the second receiving groove 120 or the fourth receiving groove 220 is the transfer bottle crown 53. The diameter of the transfer bottle crown 53 is smaller than that of the transfer bottle body 52. ​​A transfer bottle stopper 55 is provided on the side of the transfer bottle crown 53 away from the transfer bottle body 52, and the transfer bottle stopper 55 abuts against the transfer bottle crown 53. A bottle body closure 36 is sleeved on the outside of the transfer bottle stopper 55 and the transfer bottle crown 53. A transfer bottle cap 59 is placed on the outside of the bottle body closure 36. Thus, the transfer bottle crown 53 is sealed, reducing the possibility of contact between the inside of the transfer bottle body 52 and the outside.

[0078] Please see Figure 13 and Figure 14 , Figure 13 This is a schematic diagram of another embodiment of the first adapter of this application; Figure 14This is a cross-sectional view of another embodiment of the first adapter of this application. In one embodiment, the second sub-adapter 12 includes an adapter sidewall 1221. The adapter sidewall 1221 surrounds and forms a second receiving groove 120. The second sub-adapter 12 is composed of a transverse second top wall 121 and a longitudinal adapter sidewall 1221, with the adapter sidewall 1221 surrounding the second top wall 121 extending toward the side away from the first sub-adapter 11 to form the second receiving groove 120.

[0079] A notch 12211 is provided at the end of the adapter sidewall 1221 that is away from the first sub-adapter 11. That is, the notch 12211 is provided on the side of the adapter sidewall 1221 that is away from the first sub-adapter 11. This arrangement facilitates the transfer bottle 5 to enter the second receiving groove 120.

[0080] In one specific embodiment, the notches 12211 are arranged in a circular array on one end of the adapter sidewall 1221 opposite to the first sub-adapter 11. The number of notches 12211 includes, but is not limited to, two, three, four, six, etc.

[0081] One of the two components, the adapter sidewall 1221 and the transfer bottle 5, is provided with a snap-fit ​​part 1223, and the other with a snap-fit ​​hole 1222. The position of the snap-fit ​​part 1223 corresponds to the position of the snap-fit ​​hole 1222. The transfer bottle 5 enters the second receiving groove 120 through the notch 12211, and the snap-fit ​​part 1223 and the snap-fit ​​hole 1222 engage. This configuration fixes the position of the transfer bottle 5 within the second receiving groove 120, improves the stability of the connection between the transfer bottle 5 and the second receiving groove 120, and reduces the possibility of the transfer bottle 5 swaying or displacing in the radial direction of the adapter sidewall 1221.

[0082] In one specific embodiment, the latching portion 1223 is a protrusion, and the latching hole 1222 is a hole corresponding to the shape of the protrusion. The shapes of the latching portion 1223 and the latching hole 1222 include, but are not limited to, rectangles, circles, etc.

[0083] In one specific embodiment, a snap-fit ​​hole 1222 is provided on the adapter sidewall 1221, and a snap-fit ​​part 1223 corresponding to the snap-fit ​​hole 1222 is provided on the side of the transfer bottle cap 59 facing the adapter sidewall 1221. The transfer bottle 5 enters the second receiving groove 120 through the notch 12211, and the snap-fit ​​part 1223 snaps into the snap-fit ​​hole 1222, thereby fixing the position of the transfer bottle 5 in the second receiving groove 120.

[0084] In one specific embodiment, a snap-fit ​​hole 1222 is provided on the side of the transfer bottle cap 59 facing the adapter sidewall 1221, and a snap-fit ​​part 1223 corresponding to the snap-fit ​​hole 1222 is provided on the side of the adapter sidewall 1221 facing the transfer bottle cap 59. The transfer bottle 5 enters the second receiving groove 120 through the notch 12211, and the snap-fit ​​part 1223 is engaged in the snap-fit ​​hole 1222, thereby fixing the position of the transfer bottle 5 in the second receiving groove 120.

[0085] Please see Figures 14 to 16 , Figure 15 This is a schematic diagram of another embodiment of the liquid extraction vial in this application; Figure 16 This is an exploded view of another embodiment of the liquid extraction vial in this application. In one embodiment, when the adapter sidewall 1221 passes through the snap-fit ​​hole 1222, a moving groove 12212 is provided on the inner sidewall of the adapter sidewall 1221. One end of the moving groove 12212 is connected to the snap-fit ​​hole 1222. The other end of the moving groove 12212 is connected to the side of the adapter sidewall 1221 away from the first sub-adapter 11. When the snap-fit ​​part 1223 on the transfer bottle cap 59 enters the adapter sidewall 1221, it moves or rotates along the moving groove 12212, thereby snapping the snap-fit ​​part 1223 into the snap-fit ​​hole 1222. By providing the moving groove 12212, it is easier for the snap-fit ​​part 1223 to snap into the snap-fit ​​hole 1222, thus improving the connection efficiency between the transfer bottle 5 and the second receiving groove 120.

[0086] In one embodiment, the movable groove 12212 is disposed between the notch 12211 and the snap-fit ​​hole 1222. For example, the movable groove 12212 is disposed directly below the notch 12211 and directly above the snap-fit ​​hole 1222.

[0087] The process of installing the transfer bottle 5 using the second sub-adapter 12 provided in the above embodiment may include:

[0088] A movable groove 12212 aligned with the snap-fit ​​hole 1222 is provided directly below the notch 12211. The snap-fit ​​part 1223 of the transfer bottle 5 enters the adapter side wall 1221 from the notch 12211, moves along the movable groove 12212 to the snap-fit ​​hole 1222, and snaps into the snap-fit ​​hole 1222, thereby completing the snap-fit ​​of the transfer bottle 5 into the second receiving groove 120.

[0089] Please see Figure 9 , Figure 13 and Figure 17 , Figure 17This is a cross-sectional view of the transfer bottle with the push rod removed in one embodiment of the present application. In one embodiment, the transfer bottle 5 includes a transfer bottle body 52, a piston 56, and a push rod 57. The piston 56 and the push rod 57 are placed inside the transfer bottle body 52. ​​The piston 56 is threadedly connected to the end of the push rod 57 near the transfer bottle crown 53. The piston 56 is pushed and pulled inside the transfer bottle body 52 along with the push rod 57.

[0090] Piston 56 and push rod 57 are detachably connected. The piston 56 and push rod 57 are connected by threads. For example, a thread is provided on the inner side of piston 56, and an external thread is provided on the side of push rod 57 near piston 56. Rotating push rod 57 clockwise causes the external thread of push rod 57 to engage with the internal thread of piston 56, thus connecting piston 56 and push rod 57. Pushing or pulling the end of push rod 57 away from piston 56 can move piston 56 in the transfer bottle 52. The piston 56 improves the sealing of the liquid and reduces the possibility of contamination.

[0091] In one specific embodiment, a sealing ring 58 is provided on the side of the piston 56 facing the transfer bottle crown 53. The sealing ring 58 is fixedly connected to the piston 56. The sealing ring 58 moves with the piston 56. By providing the sealing ring 58, the sealing condition of the liquid medicine can be further improved, reducing the possibility of contamination.

[0092] Liquid bottle 3 is engaged with the first receiving groove 110, and transfer bottle 5 is engaged with the second receiving groove 120. One end of the first puncture needle 13 passes through liquid bottle 3, and the other end of the first puncture needle 13 passes through transfer bottle 5. Pulling the push rod 57 causes the piston 56 to move away from the transfer bottle crown 53, and the liquid 31 in liquid bottle 3 flows along the first puncture needle 13 into transfer bottle 5.

[0093] A transfer bottle 5 containing liquid 31 is engaged with the fourth receiving groove 220, and a medicine bottle 4 is engaged with the third receiving groove 210. One end of the second puncture needle 23 passes through the transfer bottle 5 containing liquid 31, and the other end of the second puncture needle 23 passes through the medicine bottle 4. Pushing the push rod 57 causes the piston 56 to move towards the side of the transfer bottle crown 53. The liquid 31 in the transfer bottle body 52 flows along the second puncture needle 23 into the medicine bottle 4. In the medicine bottle 4, the liquid 31 mixes with the medicine 41 to form a mixture 51. Then, pulling the push rod 57 causes the piston 56 to move away from the transfer bottle crown 53. The mixture 51 flows along the second puncture needle 23 into the transfer bottle body 52, thus completing the mixing of the medicine.

[0094] After the transfer bottle 5 draws in the mixture 51, the piston 56 moves to the end of the transfer bottle body 52 furthest from the transfer bottle crown 53 and is located inside the transfer bottle body 52. ​​Simultaneously, the push rod 57 moves to the end of the transfer bottle body 52 furthest from the transfer bottle crown 53 and is located outside the transfer bottle body 52. ​​The push rod 57 rotates counterclockwise, separating the piston 56 from the push rod 57. At this point, the transfer bottle 5 can store the mixture 51, similar to the medicine bottle 4 or the liquid bottle 3. The transfer bottle 5 containing the mixture 51 can be connected to an electric injector for drug injection.

[0095] Please see Figure 18 , Figure 18 This is a schematic diagram of the structure of an embodiment of the liquid bottle of this application. In one embodiment, the liquid bottle 3 includes a liquid bottle body 32 with an open top and a liquid bottle crown 33. The top opening of the liquid bottle body 32 is the liquid bottle crown 33. A liquid bottle neck 34 is recessed between the liquid bottle body 32 and the liquid bottle crown 33. The diameter of the liquid bottle neck 34 is smaller than the diameter of the liquid bottle body 32 and the diameter of the liquid bottle crown 33.

[0096] The liquid bottle stopper 35 seals the liquid bottle crown 33. This can be achieved by the liquid bottle stopper 35 being placed inside the liquid bottle crown 33, or by the liquid bottle stopper 35 abutting against the liquid bottle crown 33. A bottle closure 36 is provided on the outside of the liquid bottle stopper 35 and the liquid bottle crown 33 for further sealing. The bottle closure 36 can be of various types, including but not limited to aluminum strips and silicone protective rings.

[0097] Please see Figure 1 and Figure 2 In one embodiment, the first sub-adapter 11 includes a plurality of circumferentially spaced third elastic arms 112. A second limiting portion 113 protrudes from one end of the third elastic arm 112 near the second sub-adapter 12 and facing the first receiving groove 110. The second limiting portion 113 engages with the liquid neck 34.

[0098] Specifically, the first top wall 111 extends towards the liquid bottle 3 to form a plurality of third elastic arms 112. Adjacent third elastic arms 112 are spaced apart circumferentially along the first top wall 111.

[0099] When the liquid bottle 3 is engaged in the first receiving groove 110, the third elastic arm 112 is pushed outward by the liquid bottle crown 33 and undergoes elastic deformation. After the liquid bottle 3 is installed in place, the third elastic arm 112 returns to its original shape. At this time, the second limiting part 113 engages with the liquid bottle neck 34, and the third elastic arm 112 engages with the liquid bottle crown 33, thereby reducing the possibility of the liquid bottle 3 falling off in its natural state and ensuring that the liquid bottle 3 and the first adapter 1 are on the same axis.

[0100] In one embodiment, the first sub-adapter 11 has the same structure as the second sub-adapter 12. That is, the second sub-adapter 12 is provided with the same third elastic arm 112 and second limiting part 113 as the first sub-adapter 11.

[0101] The liquid bottle 3 has the same structure as the medicine bottle 4. That is to say, the medicine bottle 4 can also be snapped into the first receiving groove 110.

[0102] The first sub-adapter 11 has the same structure as the second sub-adapter 12, and the liquid bottle 3 and the medicine bottle 4 have the same structure. The first sub-adapter 11 can clamp either the liquid bottle 3 or the medicine bottle 4, and the second sub-adapter 12 can clamp either the liquid bottle 3 or the medicine bottle 4, so that the first adapter 1 can clamp both the liquid bottle 3 and the medicine bottle 4 at the same time.

[0103] Please see Figure 19 , Figure 19 This is a schematic diagram of the structure of one embodiment of the medicine bottle of this application. In one embodiment, the liquid bottle 3 and the medicine bottle 4 have the same structure. That is, the medicine bottle 4 is provided with a medicine bottle body 42, a medicine bottle crown 43, a medicine bottle neck 44, and a medicine bottle stopper 45, which are the same as those of the liquid bottle 3. With this arrangement, the liquid bottle 3 and the medicine bottle 4 can be used interchangeably, thereby saving costs and facilitating use.

[0104] Since the liquid bottle 3 and the medicine bottle 4 have the same structure, the first sub-adapter 11 has the same structure as the third sub-adapter 21, and therefore, the first sub-adapter 11 and the third sub-adapter 21 can be used interchangeably. The second sub-adapter 12 and the fourth sub-adapter 22 are both used to clamp the transfer bottle 5; therefore, the first adapter 1 and the second adapter 2 can be used interchangeably. In actual use, either the first adapter 1 or the second adapter 2 can be arbitrarily selected to clamp the medicine bottle 4 or the liquid bottle 3, thereby saving costs and improving drug administration efficiency.

[0105] When the first sub-adapter 11 and the second sub-adapter 12 have the same structure, and the second sub-adapter 12 and the fourth sub-adapter 22 have the same structure, that is, when the first adapter 1 and the second adapter 2 have the same structure, the efficiency of the drug delivery device in quickly preparing and transferring the drug solution is improved.

[0106] When the structures of the first sub-adapter 11 and the second sub-adapter 12 are the same, and the structures of the second sub-adapter 12 and the fourth sub-adapter 22 are different, the configuration and transfer of the drug solution can still be achieved even if the structures of the first adapter 1 and the second adapter 2 are different. In practice, different combinations can be selected according to actual needs, such as selecting two first adapters 1 simultaneously, or selecting two second adapters 2 simultaneously, or using one first adapter 1 and one second adapter 2 simultaneously; the specific selection is not limited.

[0107] Please see Figure 1 and Figure 13 In one embodiment, the first adapter 1 further includes two symmetrically arranged first connecting portions 14. One end of each first connecting portion 14 is connected to a first sub-adapter 11, and the other end is connected to a second sub-adapter 12. The two ends of the two first connecting portions 14 are respectively connected to the first sub-adapter 11 and the second sub-adapter 12. This arrangement makes the structure of the first adapter 1 more stable.

[0108] The first puncture needle 13 is located on the line of symmetry between the two first connecting parts 14. The line of symmetry between the two first connecting parts 14 can be the central axis of the first adapter 1, that is, the first puncture needle 13 is located on the central axis of the first adapter 1.

[0109] The first connecting portion 14 is arc-shaped. The first connecting portion 14 can be concave towards the side closer to the first puncture needle 13 to form an arc shape, or it can be convex towards the side away from the first puncture needle 13 to form an arc shape.

[0110] In one embodiment, a tube 15 is provided between the two first connecting parts 14, and the tube 15 is filled with glue to fix the position between the first puncture needle 13 and the first adapter 1.

[0111] In one embodiment, the first adapter 1 includes a channel (not shown). The channel is for the passage of a first puncture needle 13. The channel is disposed on the central axis of the first adapter 1. The channel may be disposed on the side of the first sub-adapter 11 facing the second sub-adapter 12, or on the side of the second sub-adapter 12 facing the first sub-adapter 11.

[0112] In one embodiment, the first adapter 1 has the same structure as the second adapter 2, and therefore the second adapter 2 is provided with the same first connecting part 14, column 15 and channel.

[0113] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A drug delivery device, characterized in that, include: The first adapter includes a first sub-adapter, a second sub-adapter, and a first puncture needle. The first sub-adapter has a first receiving groove, and the second sub-adapter has a second receiving groove. The first receiving groove and the second receiving groove are arranged opposite to each other. One end of the first puncture needle passes through the first sub-adapter and is located in the first receiving groove, and the other end of the first puncture needle passes through the second sub-adapter and is located in the second receiving groove. The second adapter includes a third sub-adapter, a fourth sub-adapter, and a second puncture needle. The third sub-adapter has a third receiving groove, and the fourth sub-adapter has a fourth receiving groove. The third receiving groove and the fourth receiving groove are arranged opposite to each other. One end of the second puncture needle passes through the third sub-adapter and is located in the third receiving groove, and the other end of the second puncture needle passes through the fourth sub-adapter and is located in the fourth receiving groove. A liquid bottle containing liquid, the liquid bottle including a liquid bottle body and a liquid bottle crown, a liquid bottle neck recessed between the liquid bottle body and the liquid bottle crown, the liquid bottle being snapped into a first receiving groove, and one end of a first puncture needle passing through the liquid bottle; A medicine bottle containing medicine is fitted into the third receiving groove, and one end of the second puncture needle passes through the medicine bottle. A transfer bottle includes a transfer bottle body and a transfer bottle crown. A transfer bottle neck is recessed between the transfer bottle body and the transfer bottle crown. The transfer bottle is snapped into the second receiving groove and the fourth receiving groove. One end of the first puncture needle passes through the transfer bottle, and one end of the second puncture needle passes through the transfer bottle. In this process, the transfer bottle located in the second receiving tank draws liquid from the liquid bottle located in the first receiving tank, the transfer bottle containing the liquid is snapped into the fourth receiving tank and mixed with the medicine bottle located in the third receiving tank to form a mixture, and then the transfer bottle draws the mixture from the medicine bottle; The second sub-adapter includes a plurality of first elastic arms spaced apart circumferentially and a plurality of second elastic arms spaced apart circumferentially. The first elastic arms have a first limiting part on one side facing the transfer bottle. The first limiting part is engaged with the neck of the transfer bottle. The plurality of second elastic arms surround to form a second receiving groove. The second elastic arms are engaged with the transfer bottle body. The plurality of first elastic arms are located in the second receiving groove. The second elastic arm has a guide slope at the end away from the first sub-adapter and on the side facing the transfer bottle. The guide slope is inclined downward in the radial direction from the second elastic arm toward the first elastic arm. The second sub-adapter has a longitudinal central axis and a transverse second top wall, and the second top wall of the second sub-adapter is recessed towards the side of the first sub-adapter to form a first groove; The first sub-adapter includes a plurality of circumferentially spaced third elastic arms. One end of each third elastic arm near the second sub-adapter and facing the first receiving groove has a second limiting part protruding from it. The second limiting part is engaged with the liquid bottleneck.

2. The drug delivery device according to claim 1, characterized in that, The second sub-adapter has the same structure as the fourth sub-adapter, the first sub-adapter has a different structure from the second sub-adapter, and the third sub-adapter has a different structure from the fourth sub-adapter.

3. The drug delivery device according to claim 1 or 2, characterized in that, The liquid bottle has the same structure as the medicine bottle.

4. The drug delivery device according to claim 1 or 2, characterized in that, The first adapter further includes two symmetrically arranged first connecting parts, and the first puncture needle is located on the symmetrical line of the two first connecting parts; the first connecting parts are arranged in an arc shape, one end of the first connecting part is connected to the first sub-adapter, and the other end is connected to the second sub-adapter.

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