Combined cover structure for infusion container with medicine mixing function

Abstract

The utility model relates to a combined cover structure for an infusion container with a medicine mixing function. The combined cover structure comprises a protective sleeve, a puncture needle with the medicine mixing function and a combined cover, the first end of the protective sleeve is closed, the second end of the protective sleeve is open, the second end of the protective sleeve is buckled on the outer side of the combined cover, and an easy-to-tear line structure is arranged on the protective sleeve; the combined cover comprises an inner cover, an outer cover is buckled on the outer side of the inner cover, a sealing cavity is formed between the inner cover and the outer cover, and a sealing gasket is arranged in the sealing cavity; the puncture needle is arranged in the protective sleeve in a sliding mode and comprises a first tip and a second tip, and a channel hole is formed in the puncture needle in a penetrating mode. According to the utility model, the protective sleeve adopts an integrated structure with an easy-to-tear line structure, and the protective sleeve and the combined cover are assembled into a whole; it is effectively guaranteed that the puncture needle with the medicine mixing function in the protection sleeve and the exposed area of the sealing gasket are prevented from being polluted by the outside in the high-temperature steam sterilization in the large-infusion medicine production process and the subsequent storage and transportation process, and the safety of medicine use is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical packaging, in particular to a combined cap structure for an infusion container with a drug mixing function. Background Art

[0002] Large-volume injection solutions (abbreviated as large infusions) are directly infused into the human vein and have the characteristics of fast action and complete absorption. When preparing drugs, the following schemes are usually adopted:

[0003] Prior Art One: In the traditional large infusion drug preparation operation, basically a syringe is used to pierce the gasket of the combined cap of the large infusion packaging container to suck out the liquid, and then the rubber stopper of the vial cap is pierced to inject the liquid. After mixing evenly, the mixed liquid medicine is sucked out and injected into the large infusion packaging. If repeated drug addition is required, the above operation steps need to be repeated.

[0004] Prior Art Two: When using an existing drug mixer, the drug mixer is first pierced through the rubber stopper of the vial cap and connected to the vial, and then the gasket of the combined cap of the large infusion packaging container is pierced. The large infusion packaging container is squeezed to inject the liquid into the vial for mixing. After the liquid medicine is mixed evenly, the large infusion packaging container is squeezed again to make the liquid medicine inject into the large infusion packaging. If repeated drug addition is required, the above steps need to be repeated.

[0005] Prior Art Three: When using an interface soft bag packaging with a drug mixer, the combined cap and the drug mixer port are two channels. When mixing drugs, the drug mixer is first pierced through the rubber stopper of the vial cap and connected to the vial, and then the gasket of the combined cap of the large infusion packaging container is pierced. The large infusion packaging container is squeezed to inject the liquid into the vial for mixing. After the liquid medicine is mixed evenly, the large infusion packaging container is squeezed again to make the liquid medicine inject into the large infusion packaging. If repeated drug addition is required, the above steps need to be repeated.

[0006] Prior Art Four: When using a combined cap with a drug mixing function, first open the upper end of the combined cap to expose the drug mixer. The drug mixer is first pierced through the rubber stopper of the vial cap and connected to the vial, and then the gasket of the combined cap of the large infusion packaging container is pierced. The large infusion packaging container is squeezed to inject the liquid into the vial for mixing. After the liquid medicine is mixed evenly, the large infusion packaging container is squeezed again to make the liquid medicine inject into the large infusion packaging. If repeated drug addition is required, the above steps need to be repeated. After the drug mixing is completed, the drug mixer component is removed, and the combined cap component is left to complete the subsequent infusion function.

[0007] The above prior arts have the following problems:

[0008] Prior Art One: Repeatedly piercing the gasket of the large infusion packaging container combined cap and the rubber stopper of the vial with a syringe has a probability of falling debris, increasing the risk. At the same time, medical staff using a syringe for piercing also increases the risk of injury.

[0009] Prior art two: Although it avoids the risks of syringe injury and high chip shedding caused by repeated punctures in prior art one, however, when mixing drugs multiple times, it is necessary to replace the drug mixer after each drug mixing; if not replaced, there will be a risk of contamination.

[0010] Prior art three: Although it can avoid the problems in the operations of prior art one and prior art two, however, the current interface form where the combined cap and the drug mixing component are independent of each other can only be used for the large volume infusion packaging form of soft bags, but cannot be used for the large volume infusion packaging forms of upright soft bags or plastic bottles, which has certain limitations and a relatively high cost.

[0011] Prior art four: While solving the operation problems of prior art one and prior art two, it also solves the problem of not being applicable to plastic bottles and upright soft bags. However, the current solution has a certain risk of contamination for the current single-port plastic bottle and upright soft bag packaging. When the drug mixing component on the current product (the combined cap structure for infusion containers with drug mixing function) finishes drug mixing or when a syringe is required for special drug addition and mixing operations, the drug mixing component needs to be removed. The drug mixing component of the current product is connected to the combined cap using a snap (or thread), and in order to ensure effective sealing, it is additionally protected with a heat shrinkable film outside. This connection structure may cause contamination inside the drug mixing component and on the surface of the rubber seal of the combined cap due to vibration or assembly sealing problems during the high-temperature steam sterilization process of large volume infusion drugs, as well as during subsequent storage and transportation, which affects the safety of drug use.

[0012] Therefore, based on years of experience and practice in the relevant industry, the present inventor proposes a combined cap structure for infusion containers with drug mixing function to overcome the defects of the prior art. Summary of the utility model

[0013] The purpose of the present utility model is to provide a combined cap structure for infusion containers with drug mixing function, the protective cover of which adopts an integrated structure with an easy-to-tear texture. The protective cover and the combined cap are assembled into one body. After the liquid medicine is filled, it is welded to the mouth of the upright soft / plastic bottle or the interface of the soft bag to form a completely welded and sealed infusion container, effectively ensuring that the puncture needle with drug mixing function inside the protective cover and the exposed area of the combined cap sealing gasket are protected from external contamination during the high-temperature steam sterilization in the production process of large volume infusion drugs and subsequent storage and transportation, and ensuring the safety of drug use.

[0014] The object of the present utility model is achieved as follows. A combined cap structure for an infusion container with a drug mixing function includes a protective sleeve, a puncture needle with a drug mixing function, and a combined cap. The protective sleeve is an integral structure. The first end of the protective sleeve is closed and the second end is open. The second end of the protective sleeve is hermetically fastened to the outside of the combined cap. An easy-to-tear texture structure for segmentally removing the protective sleeve is provided on the protective sleeve. The combined cap includes an inner cap, and an outer cap is hermetically fastened to the outside of the inner cap. A sealing cavity is formed between the top end of the inner cap and the top end of the outer cap, and a sealing gasket is arranged in the sealing cavity. The end face of the second end of the protective sleeve, the bottom end face of the inner cap, and the bottom end face of the outer cap form a common welding surface. The puncture needle is slidably arranged in the protective sleeve and is located between the first end of the protective sleeve and the combined cap. The puncture needle includes a first tip for puncturing a vial and a second tip for puncturing through the sealing gasket. A channel hole for connecting the vial and the infusion container is provided through the puncture needle.

[0015] In a preferred embodiment of the present utility model, the easy-to-tear texture structure includes a first easy-to-tear texture provided at the first end of the protective sleeve for tearing off the first end of the protective sleeve to expose the puncture needle.

[0016] The easy-to-tear texture structure further includes a second easy-to-tear texture provided at the second end of the protective sleeve for tearing off the protective sleeve and the puncture needle to expose the combined cap.

[0017] In a preferred embodiment of the present utility model, an outer edge portion fixedly sleeved on the outside of the outer cap is provided at the second end of the protective sleeve. The second easy-to-tear texture is provided on one side of the outer edge portion close to the first end of the protective sleeve.

[0018] In a preferred embodiment of the present utility model, a support cylinder for supporting and driving the puncture needle to slide is arranged in the protective sleeve. Both ends of the support cylinder are open, a support cylinder diaphragm is arranged in the support cylinder, and the puncture needle passes through the support cylinder diaphragm.

[0019] In a preferred embodiment of the present utility model, a claw-shaped vial connecting piece for clamping the vial is arranged on one side of the support cylinder diaphragm close to the first end of the protective sleeve.

[0020] In a preferred embodiment of the present utility model, a first buckle protruding outward is arranged at a position on the outer wall of the support cylinder close to the first end of the protective sleeve. A second buckle protruding inward is arranged on the inner wall of the protective sleeve at a position of the first easy-to-tear texture away from the first end of the protective sleeve. The second buckle can lock the first buckle to perform upper limit positioning on the support cylinder.

[0021] In a preferred embodiment of the present utility model, a third buckle protruding outward is provided at one end of the outer wall of the support cylinder close to the combination cover, and a limiting convex rib protruding inward is provided on the inner wall of the protective sleeve at a position of the second easy-tearing line close to the first end of the protective sleeve. The limiting convex rib can hold the third buckle to prevent the support cylinder from falling off from the protective sleeve.

[0022] In a preferred embodiment of the present utility model, one or two channel holes are provided on the puncture needle at parallel intervals.

[0023] In a preferred embodiment of the present utility model, a through hole of the outer cover for exposing the puncture area of the sealing gasket is provided at the top end of the outer cover. A first gasket groove is provided at the top end of the sealing gasket, and a first sealing convex rib surrounding the outside of the through hole of the outer cover and capable of being hermetically matched with the first gasket groove is provided on the bottom surface of the top end of the outer cover;

[0024] A cover top diaphragm is provided at the top end of the inner cover. A second gasket groove is provided at the bottom end of the sealing gasket, and a second sealing convex rib surrounding the outside of the cover top diaphragm and capable of being hermetically matched with the second gasket groove is provided at the top end of the inner cover.

[0025] In a preferred embodiment of the present utility model, the outer cover adopts a three-section cylindrical structure, including a first cylindrical part, a second cylindrical part and a third cylindrical part that are sequentially connected. The outer diameter of the first cylindrical part is larger than the outer diameter of the second cylindrical part, and the outer diameter of the second cylindrical part is larger than the outer diameter of the third cylindrical part; a sealing cavity for accommodating the sealing gasket is formed between the inner cavity of the third cylindrical part and the top end of the inner cover;

[0026] A fourth buckle is provided at the bottom of the inner wall of the first cylindrical part, and a fifth buckle is provided at the bottom end of the outer wall of the inner cover. The fourth buckle can stop the fifth buckle to limit the lower position of the inner cover; an outer cover convex rib is provided on the outer wall of the first cylindrical part, and a sixth buckle is provided at the bottom end of the inner wall of the outer edge part. The sixth buckle can stop the outer cover convex rib to limit the lower position of the outer cover; a seventh buckle is provided at the top end of the inner wall of the outer edge part. The seventh buckle can stop the top end of the outer wall of the first cylindrical part to limit the upper position of the outer cover.

[0027] As described above, the combination cover structure for an infusion container with a drug mixing function of the present utility model has the following beneficial effects:

[0028] In this utility model, the protective cover adopts an integrated structure with an easily tearable texture, so that after the protective cover and the combined cover are assembled into one, they are welded to the bottle head of the upright flexible bag (or plastic bottle) or the interface of the flexible bag to form a reliable and complete welded seal. This seal can effectively ensure that the area where the puncture needle with the function of mixing drugs inside the protective cover and the sealing gasket of the combined cover are exposed is protected from external contamination during the high-temperature steam sterilization in the production process of large-volume infusion drugs and subsequent storage and transportation, ensuring the safety of drug use. Due to the adoption of an integrated structure, compared with the existing form of using a protective cap or a film, it reduces the components and processing procedures, is more reliable and has a relatively low cost. It is possible to selectively remove the protective cover according to actual needs to meet the functions of puncturing a vial for drug mixing or directly using a traditional syringe to complete the drug addition and mixing functions on the combined cover.

[0029] The outer edge part of the protective cover can be used as an orientation component, making it more convenient to lift the cover; at the same time, as the bearing surface for the downward pressure during welding, it can ensure the welding effect and that the downward pressure during welding will not damage the seals of the two easily tearable textures.

[0030] At the mating part of the outer edge part of the protective cover and the combined cover, a buckle for limiting is provided, which can make the protective cover and the combined cover reach an accurate position during assembly and cooperation, forming a flat welding plane, so as to ensure that when the combined cover structure for an infusion container with a drug mixing function is welded to the bottle head of the upright flexible bag (or plastic bottle) or the interface of the flexible bag, it can be welded firmly and form a reliable seal inside the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The following drawings are only intended to illustrate and explain this utility model schematically and do not limit the scope of this utility model. Among them:

[0032] Figure 1 is a perspective view of the combined cover structure for an infusion container with a drug mixing function of this utility model.

[0033] Figure 2 is a top view of the combined cover structure for an infusion container with a drug mixing function of this utility model.

[0034] Figure 3 is Figure 2 the A-A cross-sectional view in

[0035] Figure 4 is a cross-sectional view of the protective cover of this utility model.

[0036] Figure 5 is a perspective view of the support cylinder and the puncture needle of this utility model.

[0037] Figure 6 is a top view of the support cylinder and the puncture needle of this utility model.

[0038] Figure 7 is Figure 6 the sectional view taken along line B-B in

[0039] Figure 8 the perspective view of the combined cap of the present utility model.

[0040] Figure 9 the top view of the combined cap of the present utility model.

[0041] Figure 10 is Figure 9 the sectional view taken along line C-C in

[0042] Figure 11 the schematic diagram of an infusion product with a combined cap structure for an infusion container with a drug mixing function.

[0043] Figure 12 the schematic diagram after tearing the first easy tear line before mixing the drug using the present utility model.

[0044] Figure 13 the schematic diagram when aligning the vial with the puncture needle in the protective sleeve.

[0045] Figure 14 the schematic diagram when pressing down the vial to make the puncture needle pierce the sealing gasket.

[0046] Figure 15 the schematic diagram after tearing the second easy tear line to remove the protective sleeve.

[0047] In the figure:

[0048] 100. Combined cap structure for an infusion container with a drug mixing function; 200. Infusion product with a combined cap structure for an infusion container with a drug mixing function;

[0049] 1. Protective sleeve;

[0050] 11. First easy tear line;

[0051] 12. Second easy tear line;

[0052] 13. Outer edge part;

[0053] 14. Support cylinder; 141. Support cylinder diaphragm; 142. Vial connector; 143. First buckle; 144. Third buckle;

[0054] 15. Second buckle;

[0055] 16. Limit convex rib;

[0056] 17. Sixth buckle;

[0057] 18. Seventh buckle;

[0058] 2. Puncture needle;

[0059] 21. First tip

[0060] 22. Second tip

[0061] 23. Channel hole

[0062] 3. Combination cover

[0063] 31. Inner cover

[0064] 32. Outer cover; 320. Outer cover through hole; 321. First cylindrical part; 322. Second cylindrical part; 323. Third cylindrical part

[0065] 33. Sealing gasket

[0066] 34. Fourth buckle

[0067] 35. Fifth buckle

[0068] 36. Outer cover raised rib

[0069] 4. Standing flexible bag

[0070] 5. Vial Detailed implementation manners

[0071] In order to have a clearer understanding of the technical features, purposes, and effects of the present utility model, the detailed implementation manners of the present utility model will now be described with reference to the accompanying drawings.

[0072] The detailed implementation manners of the present utility model described herein are only for the purpose of explaining the present utility model and should not be construed in any way as a limitation of the present utility model. Under the teaching of the present utility model, those skilled in the art can conceive of any possible variations based on the present utility model, and these should all be regarded as belonging to the scope of the present utility model. It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0073] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0074] As Figures 1 to 11 shown, the present utility model provides a combined cap structure 100 for an infusion container with a drug mixing function, which includes a protective sleeve 1, a puncture needle 2 with a drug mixing connection function, and a combined cap 3.

[0075] The protective sleeve 1 is of an integral structure. The first end of the protective sleeve 1 is closed and the second end is open. The second end of the protective sleeve 1 is hermetically buckled on the outer side of the combined cap 3. The protective sleeve 1 and the combined cap 3 are assembled into one body. An easy-tearing texture structure for segmentally removing the protective sleeve is provided on the protective sleeve 1.

[0076] The combined cap 3 includes an inner cap 31. The outer side of the inner cap 31 is hermetically buckled with an outer cap 32. A sealing cavity is formed between the top end of the inner cap 31 and the top end of the outer cap 32. A sealing gasket 33 is arranged in the sealing cavity. The end face of the second end of the protective sleeve 1, the bottom end face of the inner cap 31, and the bottom end face of the outer cap 32 form a common welding surface (i.e., in the same plane and are welded to the opening of the infusion container), so as to be welded to the opening of the infusion container (upright soft bag or plastic bottle) to form a reliable and complete welded seal.

[0077] The puncture needle 2 is slidably arranged in the protective sleeve 1 and is located between the first end of the protective sleeve 1 and the combined cap 3. The puncture needle 2 includes a first tip 21 for puncturing a vial and a second tip 22 for puncturing through the sealing gasket. A channel hole 23 for connecting the vial 5 (drug bottle, including but not limited to vials) and the infusion container is provided through the puncture needle 2.

[0078] In the present utility model, the protective sleeve adopts an integral structure with an easy-tearing texture structure, so that after the protective sleeve and the combined cap are assembled into one body, a reliable and complete welded seal is formed with the bottle head of the upright soft bag (or plastic bottle) or the interface of the soft bag. This seal can effectively ensure that the puncture needle with a drug mixing connection function inside the protective sleeve and the area where the sealing gasket of the combined cap is exposed are protected from external contamination during high-temperature steam sterilization in the large-scale drug production process and subsequent storage and transportation, ensuring the safety of drug use. Due to the adoption of an integral structure, compared with the existing form of using a protective cap or a film, the number of components and processing procedures is reduced, making it more reliable and having a relatively low cost.

[0079] The protective sleeve can be segmentally removed according to actual needs to meet the requirements of puncturing a vial for drug mixing or directly using a traditional syringe to complete the drug addition and mixing functions on the combined cap.

[0080] Furthermore, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , the tear-away texture structure includes a first tear-away texture 11 disposed at the first end (closed end) of the protective cover 1 and used to tear away the first end of the protective cover 1 to expose the puncture needle; as shown in Figure 12 , when the first tear-away texture 11 is opened, the closed end at the upper part of the first tear-away texture 11 is removed, and the puncture needle 2 with connection function is exposed, enabling the mixing function.

[0081] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , the tear-away texture structure further includes a second tear-away texture 12 disposed at the second end of the protective cover 1 and used to tear away the protective cover 1 and the puncture needle 2 to expose the combination cap 3. As shown in Figure 15 , when the second tear-away texture 12 is opened, the part of the protective cover 1 above the second tear-away texture 12 and the puncture needle 2 with connection function inside the protective cover 1 can be removed, making the combination cap 3 completely exposed. At this time, the combination cap 3 can be used in the traditional conventional way to complete the corresponding function.

[0082] Since the protective cover has two tear-away textures, it can be selected according to the actual use situation. Open the first tear-away texture 11 to remove the top seal protection and use the mixing function to mix the medicine, or open the second tear-away texture 12 to remove the mixing component and directly use the traditional syringe to complete the medicine adding and mixing functions on the combination cap 3.

[0083] Furthermore, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , an outer edge portion 13 is fixedly sleeved on the outside of the outer cap 32 at the second end of the protective cover 1; the second tear-away texture 12 is disposed on one side of the outer edge portion 13 close to the first end of the protective cover 1.

[0084] When welding the combination cap structure 100 with mixing function and the bottle head of the upright flexible bag (or plastic bottle), the outer edge portion 13 of the protective cover can be used as an orientation component to make it more convenient to lift the lid; at the same time, as the bearing surface of the downward pressure during welding, it can ensure the welding effect and the downward welding pressure will not damage the seal of the two tear-away textures.

[0085] Furthermore, as shown in Figure 1 , Figure 5 , Figure 6 , Figure 7As shown in the figure, a support cylinder 14 (cylindrical tube) for supporting and driving the sliding of the puncture needle 2 is arranged inside the protective cover 1. Both ends of the support cylinder 14 are open. A support cylinder diaphragm 141 is arranged inside the support cylinder 14, and the puncture needle 2 penetrates through the support cylinder diaphragm 141. The part of the support cylinder 14 near the first end of the protective cover 1 is arranged in a claw structure, with a radial micro-deformation function. The support cylinder 14 can ensure the smooth movement of the puncture needle 2 inside the protective cover 1.

[0086] Further, as shown in Figure 6 , Figure 7 the figure, a claw-shaped vial connector 142 for clamping the vial is arranged on one side of the support cylinder diaphragm 141 near the first end of the protective cover. The vial connector 142 is arranged in a claw structure (capable of radially expanding and contracting under pressure), and a bottle mouth clamping part for clamping the vial is arranged on its inner wall. When the vial is punctured in place, the function of the vial connector 142 is to clamp the vial to prevent it from moving or falling off, ensuring the smooth introduction and export of liquid into and out of the vial.

[0087] Further, as shown in Figure 6 , Figure 7 the figure, a first buckle 143 protruding outward is arranged on the outer wall of the support cylinder 14 near the first end of the protective cover 1, and a second buckle 15 protruding inward is arranged on the inner wall of the protective cover 1 at a position away from the first end of the protective cover and located at the first easy tear line 11. The second buckle 15 can clamp the first buckle 143 to perform upper limit positioning on the support cylinder 14, ensuring that when the vial is pulled out during the mixing operation, the support cylinder 14 and the puncture needle 2 are prevented from being pulled out of the protective cover 1 simultaneously, avoiding the loss of product function.

[0088] Further, as shown in Figure 6 , Figure 7 the figure, a third buckle 144 protruding outward is arranged on the outer wall of the support cylinder 14 near one end of the combined cap 3, and a limiting protruding rib 16 (in the middle part of the protective cover 1) protruding inward is arranged on the inner wall of the protective cover 1 at a position near the first end of the protective cover and located at the second easy tear line 12. The limiting protruding rib 16 can clamp the third buckle 144 to prevent the support cylinder 14 from falling off from the protective cover 1, ensuring that after the mixing is completed, the puncture needle can be limited and stay here after being pulled up, ensuring that after the lower puncture needle is pulled out from the rubber stopper, it stays inside the protective cover 1, ensuring that when the second easy tear line 12 is opened to remove the protective cover, the puncture needle 2 stays inside the protective cover 1, reducing the harm to the user.

[0089] Further, as shown in Figure 5 , Figure 6 , Figure 7 the figure, one or two parallel and spaced channels 23 are arranged on the puncture needle 2. The double channels facilitate the introduction and export of liquid.

[0090] Further, as shown in Figure 8, Figure 9 , Figure 10 As shown in and

[0091] , a lid through hole 320 (round hole) for exposing the puncture area of the sealing gasket 33 is provided at the top end of the outer lid 32. The size of the lid through hole 320 matches that of the sealing gasket 33, and the puncture area of the sealing gasket 33 is completely exposed.

[0091] A first gasket groove is provided at the top end of the sealing gasket 33, and a first sealing rib is provided on the bottom surface of the top end of the outer lid 32, which is disposed outside the lid through hole and can be hermetically matched with the first gasket groove to prevent side leakage after the puncture needle pierces the inner lid during use.

[0092] The shape of the inner lid 31 matches that of the outer lid. A lid top diaphragm is provided at the top end of the inner lid 31, and the diaphragm gate is offset at the edge of the diaphragm. The puncture port of the sealing gasket 33 is at the central part. After the sealing gasket (rubber stopper) is placed into the corresponding cavity of the outer lid 32, the inner lid 31 is placed in. At the joint between the lid top diaphragm at the top end of the inner lid 31 and the sealing gasket, a support is formed.

[0093] A second gasket groove is provided at the bottom end of the sealing gasket 33, and a second sealing rib is provided on the top end of the inner lid 31, which is disposed outside the lid top diaphragm and can be hermetically matched with the second gasket groove.

[0094] Furthermore, as shown in Figure 8 , Figure 9 and Figure 10 , the outer lid 32 adopts a three-section cylindrical structure, including a first cylindrical part 321, a second cylindrical part 322 and a third cylindrical part 323 that are sequentially connected. The first cylindrical part 321 is a welded disc, and its outer diameter is larger than that of the second cylindrical part 322, and the outer diameter of the second cylindrical part 322 is larger than that of the third cylindrical part 323; the inner cavity of the third cylindrical part 323 matches the shape of the sealing gasket 33, and a sealing cavity for accommodating the sealing gasket 33 is formed between it and the top end of the inner lid 31;

[0095] A fourth buckle 34 is provided at the bottom of the inner wall of the first cylindrical part 321, and a fifth buckle 35 is provided at the bottom end of the outer wall of the inner lid 31. The fourth buckle 34 can lock the fifth buckle 35 to limit the lower position of the inner lid 31; ensure that the inner lid 31 stays in the appropriate position, and the welding surfaces at the lower ends of the inner lid 31 and the outer lid 32 are in the same plane.

[0096] An outer lid rib 36 is provided on the outer wall of the first cylindrical part 321. A sixth buckle 17 is provided at the bottom end of the inner wall of the outer edge part 13. The sixth buckle 17 can lock the outer lid rib 36 to limit the lower position of the outer lid 32; a seventh buckle 18 is provided at the top end of the inner wall of the outer edge part 13. The seventh buckle 18 can lock the top end of the outer wall of the first cylindrical part 321 to limit the upper position of the outer lid 32.

[0097] ​​​​​​The outer edge 13 of the protective sleeve 1 and the matching position of the combined cover 3 are provided with limiting buckles (the outer cover raised rib 36, the sixth buckle 17, and the seventh buckle 18), which can make the protective sleeve 1 and the combined cover 3 reach a precise position when assembled and matched, forming a flat welding plane, so as to ensure that the combined cover structure 100 for the infusion container with a drug mixing function and the bottle head of the upright soft bag (or plastic bottle) can be welded firmly, and a reliable seal is formed in the protective sleeve 1.

[0098] The assembly process of the combined cover structure for an infusion container with a medicine mixing function of the utility model is as follows:

[0099] The puncture needle 2 and its mounting support tube 14 are installed into the protective sleeve 1 from the second end (open end) of the protective sleeve, so that the medicine bottle connector 142 of the puncture needle is arranged close to the first end (closed end) of the protective sleeve, and then the combined cover 3 is pressed into the second end (open end) of the protective sleeve, and the second tip 22 (lower end) of the puncture needle is almost in contact with the sealing gasket 33 of the combined cover 3. The bottom ends of the inner cover 31 and the outer cover 32 of the combined cover 3 are ensured to be in the same plane as the bottom end of the protective sleeve 1 through various limit buckles, etc., to ensure that they can be firmly welded to the bottle head of the upright soft bag (or plastic bottle) 4.

[0100] When using an infusion product 200 (such as Figure 11 If the drug mixing function is needed, the first tearable pattern 11 can be torn open by hand, as shown in FIG. Figure 12 As shown, in this way, the first end (closed end) of the protective sleeve will be opened to expose the medicine bottle connector 142.

[0101] The aluminum-plastic composite cap (existing technology) of the vial is broken open, such as Figure 13 As shown, align the puncture hole of the vial stopper with the puncture needle 2 inside the protective sleeve 1 and press down; Figure 14 As shown, press the puncture needle 2 to the bottom, and at the same time, snap the head of the syringe bottle into the buckle of the medicine bottle connector 142. Flip the upright soft bag (or plastic bottle) infusion container to allow the liquid medicine in the upright soft bag (or plastic bottle) to enter the syringe bottle, and shake it well to completely dissolve the powder. Then flip the infusion container again to allow the liquid medicine in the syringe bottle to flow back into the infusion container. Then pull the syringe bottle upward to make the puncture needle 2 come out of the sealing gasket 33 of the combination cover 3. When it reaches the upper end of the protective cover 1, shake the syringe bottle appropriately to make it detach from the medicine bottle connector 142.

[0102] If you need to continue mixing the medicine, repeat the above steps. After the mixing operation is completed, the vial can be pulled upward to pull the puncture needle out of the sealing gasket 33 of the combination cover 3, and the support tube 14 and the puncture needle 2 stay on the limiting protrusion rib 16 (to prevent the puncture needle from exposing and injuring the hand during the removal process).

[0103] Then, tear the second tear line 12 by hand so that the protective cover 1 and its internal components fall off as a whole, while exposing the combination cap 3 and the sealing gasket 33, as Figure 15 shown. After that, the infusion operation can be completed using the infusion set.

[0104] If the mixing function of the present utility model is not required, the second tear line 12 can be directly torn by hand. After the second tear line 12 is torn, the protective cover 1 on the upper part of the combination cap 3 and the puncture needle 2 inside will fall off simultaneously, and the sealing gasket 33 of the combination cap 3 will be exposed. After that, a syringe can be used to complete traditional drug addition and mixing, and an infusion set can be used for infusion (equivalent to the functions of existing ordinary upright soft bag or plastic bottle packaged large infusion products).

[0105] As described above, the combination cap structure of the infusion container with a mixing function of the present utility model has the following beneficial effects:

[0106] In the present utility model, the protective cover adopts an integrated structure with a tear line structure. After the protective cover and the combination cap are assembled into one, they are welded to the bottle head of the upright soft bag (or plastic bottle) or the interface of the soft bag to form a reliable and complete welded seal. This seal can effectively ensure that the puncture needle with a mixing connection function inside the protective cover and the area where the sealing gasket of the combination cap is exposed are protected from external contamination during the high-temperature steam sterilization in the production process of large infusion drugs and subsequent storage and transportation, ensuring the safety of drug use. Due to the use of an integrated structure, compared with the existing forms of using protective caps or films, it reduces components and processing procedures, is more reliable and has a relatively low cost. The protective cover can be selectively removed in segments according to actual needs to meet the requirements of puncturing a vial for mixing or directly using a traditional syringe to complete drug addition and mixing functions on the combination cap.

[0107] The outer edge part of the protective cover can be used as an orientation component to make it more convenient to lift the cap; at the same time, as the bearing surface for the downward pressure during welding, it can ensure the welding effect and the downward pressure during welding will not damage the seal of the two tear lines.

[0108] Limit clips are provided at the mating part between the outer edge part of the protective cover and the combination cap, which can make the protective cover and the combination cap reach an accurate position during assembly and cooperation, forming a flat welding plane, so as to ensure that the combination cap structure of the infusion container with a mixing function and the interface of the bottle head or soft bag of the upright soft bag (or plastic bottle) can be welded firmly and form a reliable seal inside the protective cover.

[0109] The above description is only a schematic specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present utility model shall fall within the scope of protection of the present utility model.

Claims

1. A combined cover structure for an infusion container with a drug mixing function, characterized in that: The invention comprises a protective sleeve, a puncture needle with a drug mixing function and a combined cover; the protective sleeve is an integrated structure, the first end of the protective sleeve is closed and the second end is open, the second end of the protective sleeve is sealed and buckled with the outer side of the combined cover, and the protective sleeve is provided with an easy-tear pull pattern structure for removing the protective sleeve in sections; the combined cover comprises an inner cover, the outer side of the inner cover is sealed and buckled with the outer cover, a sealed cavity is formed between the top end of the inner cover and the top end of the outer cover, and a sealing gasket is arranged in the sealed cavity; the end face of the second end of the protective sleeve and the bottom end face of the inner cover and the bottom end face of the outer cover form a common welding surface; the puncture needle can be slidably arranged in the protective sleeve and is located between the first end of the protective sleeve and the combined cover, the puncture needle comprises a first tip for puncturing a syringe bottle and a second tip for puncturing through the sealing gasket, and a channel hole for connecting the syringe bottle and the infusion container is arranged through the puncture needle.

2. The combined cover structure for an infusion container with a medicine mixing function as claimed in claim 1, characterized in that: The tear-away pattern structure includes a first tear-away pattern disposed at the first end of the protective sleeve and used for tearing and removing the first end of the protective sleeve to expose the puncture needle; The tear-away pattern structure also includes a second tear-away pattern disposed at the second end of the protective sleeve and used for tearing off the protective sleeve and the puncture needle to expose the combined cover.

3. The combined cover structure for an infusion container with a medicine mixing function as claimed in claim 2, characterized in that: The second end of the protective sleeve is provided with an outer edge portion fixedly sleeved on the outer side of the outer cover; the second easy-tear pattern is provided on one side of the outer edge portion close to the first end of the protective sleeve.

4. The combined cover structure for an infusion container with a medicine mixing function as claimed in claim 2, characterized in that: A support tube for supporting and driving the puncture needle to slide is arranged in the protective sleeve, the two ends of the support tube are open, a support tube diaphragm is arranged in the support tube, and the puncture needle is inserted into the support tube diaphragm.

5. The combined cover structure for an infusion container with a medicine mixing function as claimed in claim 4, characterized in that: A claw-shaped medicine bottle connector capable of clamping a vial of the syringe is arranged on one side of the support tube diaphragm close to the first end of the protective sleeve.

6. The combined cover structure for an infusion container with a medicine mixing function as claimed in claim 4, characterized in that: A first buckle protruding outward is provided on the outer wall of the support tube near the first end of the protective cover, and a second buckle protruding inward is provided on the inner wall of the protective cover at a position away from the first end of the protective cover and located at the first tearable pattern. The second buckle can stop the first buckle to limit the support tube.

7. The combined cover structure for an infusion container with a medicine mixing function as claimed in claim 6, characterized in that: A third buckle protruding outward is arranged on the outer wall of the support tube near one end of the combination cover, and a limiting protrusion rib protruding inward is arranged on the inner wall of the protective cover at a position of the second tearable pattern near the first end of the protective cover, and the limiting protrusion rib can clamp the third buckle to prevent the support tube from falling off from the protective cover.

8. The combined cover structure for an infusion container with a medicine mixing function as claimed in claim 4, characterized in that: The puncture needle is provided with one channel hole or two channel holes spaced in parallel.

9. The combined cover structure for an infusion container with a medicine mixing function as claimed in claim 3, characterized in that: The top end of the outer cover is provided with an outer cover through hole capable of exposing the puncture area of ​​the sealing gasket, the top end of the sealing gasket is provided with a first gasket groove, and the bottom surface of the top end of the outer cover is provided with a first sealing protrusion rib which is arranged around the outer side of the outer cover through hole and can be sealed and matched with the first gasket groove; A cover top diaphragm is arranged at the top end of the inner cover, a second gasket groove is arranged at the bottom end of the sealing gasket, and a second sealing protrusion rib is arranged at the top end of the inner cover, which is surrounded by the outer side of the cover top diaphragm and can be sealed and matched with the second gasket groove.

10. The combined cover structure for an infusion container with a medicine mixing function as claimed in claim 9, characterized in that: The outer cover adopts a three-section cylindrical structure, including a first cylindrical part, a second cylindrical part and a third cylindrical part which are sequentially connected, the outer diameter of the first cylindrical part is larger than the outer diameter of the second cylindrical part, and the outer diameter of the second cylindrical part is larger than the outer diameter of the third cylindrical part; the inner cavity of the third cylindrical part and the top end of the inner cover form the sealing cavity for accommodating the sealing gasket; A fourth buckle is provided at the bottom of the inner wall of the first cylindrical portion, and a fifth buckle is provided at the bottom end of the outer wall of the inner cover, and the fourth buckle can lock the fifth buckle to limit the lower position of the inner cover; an outer cover protruding rib is provided on the outer wall of the first cylindrical portion, and a sixth buckle is provided at the bottom end of the inner wall of the outer edge portion, and the sixth buckle can lock the outer cover protruding rib to limit the lower position of the outer cover; a seventh buckle is provided at the top end of the inner wall of the outer edge portion, and the seventh buckle can lock the top end of the outer wall of the first cylindrical portion to limit the outer cover.

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