A liquid reservoir bottle adapter

Abstract

The utility model discloses a liquid storage bottle adapter relates to medical instrument technical field, specifically, including adapter main part, the inside setting of adapter main part has the liquid storage cavity, and the outside is provided with puncture interface, dispensing interface, air inlet and puncture needle, the inside setting of puncture needle has the gas passage of single end opening and several groups liquid channel, puncture interface with liquid channel's other end all intercommunication liquid storage cavity, puncture interface with liquid storage cavity intercommunication, at least one group liquid channel's other end with liquid storage cavity intercommunication, the adapter main part of this liquid storage bottle adapter is integrated puncture needle, dispensing interface and puncture interface, are used for puncture guide liquid storage container, guide dispensing connector and guide liquid medicine infusion device respectively, reduce the probability of liquid medicine leakage or volatilization, integrate air inlet of puncture needle inside gas passage simultaneously, can balance the air pressure in liquid storage container, and then be applicable to hard liquid storage container.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a liquid storage bottle adapter. Background Technology

[0002] Dangerous drugs are those that can cause occupational exposure hazards or harms, namely drugs that are genotoxic, carcinogenic, teratogenic, or have impaired fertility, or that can produce serious organ or other toxic effects at low doses. They usually refer to anti-tumor drugs.

[0003] In the intravenous compounding center (dispensing department), the use of ordinary syringes to prepare dangerous drugs can lead to drug splashing or leakage. During the process, anti-tumor drugs can enter the bodies of medical staff through the skin, digestive tract, and respiratory tract.

[0004] In the existing technology, puncture-type adapters are used for drug infusion to reduce the risk of dangerous drug leakage or volatilization. However, after the current adapters are punctured into the storage container, they can only draw out the drug in one direction, causing the pressure inside the drug container to decrease continuously, making it impossible for the internal drug to be continuously discharged. Therefore, the existing puncture-type adapters are mainly suitable for soft storage bags and cannot be used for hard storage bottles.

[0005] In summary, how to solve the problems of health damage to medical personnel caused by dangerous drug leakage during operation and the incompatibility of existing puncture adapters with rigid liquid storage bottles are problems that urgently need to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a liquid storage bottle adapter, which integrates a puncture needle, a drug dispensing interface, and a puncture interface in its main body. These are used to puncture and connect the liquid storage container, the drug dispensing connector, and the drug infusion device, respectively, reducing the probability of drug leakage or evaporation. At the same time, it integrates an air inlet interface that connects to the gas channel inside the puncture needle, allowing external gas to enter the liquid storage container in one direction, balancing the internal air pressure of the liquid storage container, and thus making it suitable for rigid liquid storage containers.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A liquid storage bottle adapter includes an adapter body, wherein the adapter body has a liquid storage chamber inside and a puncture interface, a drug dispensing interface, an air inlet interface and a puncture needle outside;

[0009] The puncture needle is provided with a single-ended gas channel and several sets of independent liquid channels inside.

[0010] The other end of the puncture port and the liquid channel are both connected to the liquid storage chamber, and the puncture port is connected to the liquid storage chamber;

[0011] At least one set of the liquid channels is connected at the other end to the liquid storage chamber;

[0012] The liquid storage chamber or at least one set of the liquid channels is connected to the drug dispensing interface;

[0013] The gas passage is connected to the air inlet port;

[0014] The air inlet is equipped with a water-resistant and breathable membrane.

[0015] Preferably, the centerline of the gas channel is parallel to the axis of the puncture needle, and the opening end of the gas channel is located at the puncture end of the puncture needle.

[0016] Preferably, the air intake port is perpendicular to the center line of the adapter body, and the open end of the air intake port is provided with an openable and closable air intake plug.

[0017] Preferably, the dispensing interface is perpendicular to the center line of the adapter body, and a second puncture sealing gasket is fixedly provided at the open end of the dispensing interface.

[0018] Preferably, the dispensing interface is provided with a stepped hole, and a second puncture sealing gasket is installed in the stepped hole with an interference fit. One end face of the second puncture sealing gasket abuts against the stepped surface of the stepped hole, and the inner diameter of the open end of the dispensing interface is smaller than the inner diameter of the position of the second puncture sealing gasket.

[0019] Preferably, the outer periphery of the dispensing interface is provided with a limiting groove and / or a limiting wedge block for fixing the dispensing connector at the dispensing interface.

[0020] Preferably, the centerline of the puncture interface overlaps with the centerline of the adapter body, and a first puncture sealing gasket is provided inside the puncture interface.

[0021] Preferably, a stepped hole is provided in the puncture interface, and a first puncture sealing gasket is provided in the stepped hole with an interference fit. One end face of the first puncture sealing gasket abuts against the stepped surface of the stepped hole, and the inner diameter of the open end of the puncture interface is smaller than the inner diameter of the position of the first puncture sealing gasket.

[0022] Preferably, the end of the puncture interface is provided with an annular insertion groove for catheter insertion, and the inner wall of the insertion groove on the side near the center line of the puncture interface can be interference-fitted with or sealed welded to the inner wall of the catheter.

[0023] Preferably, it also includes a protective cap, which is detachably and fixedly connected to the adapter body for wrapping and shielding the puncture needle.

[0024] The liquid storage bottle adapter provided by this utility model has at least the following advantages compared with the prior art:

[0025] 1. This product integrates a puncture needle for puncturing the liquid storage container to draw out the internal medication, reducing the risk of medication leakage and evaporation; it also integrates a dispensing interface for easy connection with a dispensing connector, reducing the risk of medication leakage during the dispensing process.

[0026] 2. An air intake channel is integrated inside the puncture needle and connected to the air intake interface to facilitate the balance of the pressure difference inside and outside the liquid storage container and facilitate the smooth discharge of the liquid in the liquid storage container; and a water-resistant and breathable membrane is set at the air intake interface, which allows only one-way air intake and will not cause internal liquid leakage, eliminating the safety hazard of drug leakage. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the specific liquid storage bottle adapter provided by this utility model;

[0029] Figure 2 This is a front view of the specific liquid storage bottle adapter provided by this utility model;

[0030] Figure 3 Provided by this utility model Figure 2 Sectional view at point AA;

[0031] Figure 4 Provided by this utility model Figure 3 Sectional view at point BB;

[0032] Figure 5 This is a schematic diagram of the specific drug dispensing connector provided by this utility model.

[0033] Figures 1-5 middle:

[0034] 1. Adapter body; 11. Puncture interface; 12. Medication dispensing interface; 121. Limiting slot; 122. Limiting wedge block; 13. Air inlet; 14. Puncture needle; 141. Liquid channel; 142. Gas channel; 15. Liquid reservoir;

[0035] 2. Protective cap; 3. Air inlet plug; 4. Water-resistant and breathable membrane; 5. First puncture sealing gasket; 6. Second puncture sealing gasket; 7. Dispensing connector. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] The core of this utility model is to provide a liquid storage bottle adapter, which integrates a puncture needle, a drug dispensing interface, and a puncture interface within the adapter body. These are used to puncture and connect the liquid storage container, the drug dispensing connector, and the drug infusion device, respectively, reducing the probability of drug leakage or evaporation. At the same time, it integrates an air inlet interface that connects to the internal gas channel of the puncture needle, allowing external gas to enter the liquid storage container unidirectionally, balancing the internal gas pressure of the liquid storage container, and thus making it suitable for rigid liquid storage containers.

[0038] Please refer to Figures 1-4 A liquid storage bottle adapter includes an adapter body 1, which has a liquid storage chamber 15 inside and a puncture interface 11, a drug dispensing interface 12, an air inlet interface 13 and a puncture needle 14 outside.

[0039] The puncture needle 14 has a single-ended open gas channel 142 and several sets of independent liquid channels 141 inside.

[0040] The other end of both the puncture port 11 and the liquid channel 141 is connected to the liquid storage chamber 15, and the puncture port 11 is connected to the liquid storage chamber 15.

[0041] At least one set of liquid channels 141 is connected at the other end to the liquid storage chamber 15;

[0042] The liquid storage chamber 15 or at least one set of liquid channels 141 is connected to the drug dispensing interface 12;

[0043] Gas passage 142 is connected to air inlet 13;

[0044] A water-resistant and breathable membrane 4 is installed inside the air inlet 13;

[0045] like Figures 1-4 As shown, by integrating a puncture needle 14 into the adapter body 1, when the liquid storage bottle adapter is connected to the liquid storage bottle, the liquid can be drawn by puncturing the puncture pad of the liquid storage bottle with the puncture needle 14, thereby effectively avoiding liquid leakage and liquid evaporation.

[0046] Simultaneously, a liquid channel 141 and a gas channel 142 are integrated within the puncture needle 14. While drawing the liquid from the storage bottle through the liquid channel 141, external gas can enter the storage bottle through the gas channel 142, thereby maintaining the pressure difference balance inside and outside the storage bottle, and allowing the liquid to be discharged smoothly through the liquid channel 141. At the same time, a water-resistant and breathable membrane 4 is provided in the air inlet 13. The water-resistant and breathable membrane 4 has the characteristics of being breathable but water-resistant. That is, gas can pass through the water-resistant and breathable membrane 4 and enter the storage bottle through the gas channel 142, while the liquid inside and outside the storage bottle cannot flow through the water-resistant and breathable membrane 4. Therefore, it effectively prevents the liquid in the storage bottle from leaking through the gas channel 142 and the air inlet 13.

[0047] Meanwhile, the adapter body 1 is provided with a liquid storage chamber 15, which connects the liquid channel 141, the puncture interface 11 and the drug dispensing interface 12, thus serving as a three-way valve, so that the drug dispensing connector 7 can connect to the drug dispensing interface 12 to carry out the drug dispensing work.

[0048] Meanwhile, for the design of setting a puncture pad at the puncture port 11, the liquid storage chamber 15 retains a space to accommodate the infusion set after the puncture mechanism punctures the puncture pad.

[0049] In some embodiments, the centerline of the gas channel 142 is parallel to the axis of the puncture needle 14, and the opening end of the gas channel 142 is located at the puncture end of the puncture needle 14.

[0050] like Figure 3 As shown, a gas channel 142 parallel to the axis of the puncture needle 14 is adopted, and the opening end of the gas channel 142 is set at the puncture end of the puncture needle 14. That is, by keeping the gas channel 142 straight and unobstructed, the resistance when the gas passes through is effectively reduced, and the problem of gas accumulation caused by the internal bending of the channel is avoided. At the same time, setting the opening end of the gas channel 142 at the end of the puncture needle 14 enables the puncture needle 14 to open the gas channel 142 in time during the puncture process, ensuring the gas pressure balance in the liquid storage bottle.

[0051] In some embodiments, the air intake port 13 is perpendicular to the center line of the adapter body 1, and the open end of the air intake port 13 is provided with an openable and closable air intake plug 3.

[0052] like Figure 3 As shown, by setting an air inlet plug 3 at the open end of the air inlet port 13, when using a soft liquid storage container, such as an infusion bag, the air inlet plug 3 can be closed, i.e., the gas passage 142 can be blocked, thus preventing gas from entering the infusion bag and ensuring the smooth discharge of the liquid medicine in the infusion bag; while when using a rigid liquid storage container, such as a liquid storage bottle, the air inlet plug 3 can be opened, i.e., the gas passage 142 can be opened, allowing gas to enter the liquid storage bottle, thereby balancing the pressure inside and outside the liquid storage bottle, and thus allowing the liquid medicine in the infusion bottle to be discharged smoothly;

[0053] Meanwhile, the design of the center line of the air intake port 13 being perpendicular to the center line of the adapter body 1 ensures that the force exerted by the air intake plug 3 when it is opened or closed is perpendicular to the puncture needle 14, thereby avoiding the problem of the puncture needle 14 falling off due to misoperation when operating the air intake plug 3.

[0054] In some embodiments, the dispensing interface 12 is perpendicular to the center line of the adapter body 1, and a second puncture sealing gasket 6 is fixedly provided at the open end of the dispensing interface 12.

[0055] like Figure 4 As shown, by setting a second puncture sealing gasket 6 at the drug dispensing interface 12 for sealing, the leakage of drug solution through the drug dispensing interface 12 is effectively prevented. When the drug dispensing connector 7 is connected, the puncture mechanism inside the drug dispensing connector 7 needs to puncture the second puncture sealing gasket 6 to open the drug dispensing interface 12. When the drug dispensing connector 7 is disengaged, that is, when its internal puncture mechanism is disengaged from the second puncture sealing gasket 6, the second puncture sealing gasket 6 can automatically close, that is, seal again to prevent the drug solution from leaking.

[0056] Meanwhile, the dispensing interface 12 is set perpendicular to the adapter body 1, which avoids interference between the dispensing connector 7 and the drug infusion device during assembly.

[0057] In some embodiments, a stepped hole is provided in the dispensing interface 12, and a second puncture sealing gasket 6 is installed in the stepped hole with an interference fit. One end face of the second puncture sealing gasket 6 abuts against the stepped surface of the stepped hole, and the inner diameter of the open end of the dispensing interface 12 is smaller than the inner diameter of the position where the second puncture sealing gasket 6 is located.

[0058] like Figure 4 As shown, the second puncture sealing gasket 6 is installed in the drug dispensing interface 12 with an interference fit, which effectively improves the sealing of the installation position. The stepped hole design and the narrowing design adopted in the drug dispensing interface 12 abut against the two end faces of the second puncture sealing gasket 6, thereby effectively preventing the axial movement of the second puncture sealing gasket 6 and ensuring its stability.

[0059] In some embodiments, hot-melt welding is used to weld the outer periphery of the second puncture sealing pad 6 to the inner wall of the drug dispensing interface 12, which also falls within the protection scope of this application.

[0060] In some embodiments, the outer periphery of the dispensing interface 12 is provided with a limiting slot 121 and / or a limiting wedge block 122 for fixing the dispensing connector 7 to the dispensing interface 12.

[0061] like Figure 1 and Figure 5As shown, a quick-connect mechanism is provided at the connection position between the drug dispensing connector 7 and the drug dispensing interface 12, and a snap-fit ​​groove is provided at the connection position. When the drug dispensing connector 7 and the drug dispensing interface 12 are connected, the locking steel ball in the quick-connect mechanism can be accommodated in the limiting slot 121, or the limiting wedge block 122 can be snapped into the snap-fit ​​groove, thereby ensuring the relative stability of the drug dispensing interface 12 and the drug dispensing connector 7, preventing the drug dispensing connector 7 from falling off, and thus preventing the problem of drug leakage.

[0062] In some embodiments, the center line of the puncture interface 11 overlaps with the center line of the adapter body 1, and a first puncture sealing gasket 5 is provided inside the puncture interface 11.

[0063] like Figure 3 and Figure 4 As shown, by setting a first puncture sealing pad 5 at the puncture port 11, the sealing of the puncture port 11 position is ensured. When drug infusion is required, the puncture mechanism of the infusion set can be used to puncture the first puncture sealing pad 5. When the puncture mechanism is disengaged, the first puncture sealing pad 5 can automatically close to prevent drug leakage.

[0064] Meanwhile, the design of overlapping center lines of the puncture interface 11 and the adapter body 1 ensures that the puncture mechanism of the infusion set has sufficient space after puncture. Moreover, this design makes the center lines of the puncture interface 11 and the puncture needle 14 overlap, which makes it easier to hold the reservoir bottle and exert force during puncture.

[0065] In some embodiments, a stepped hole is provided in the puncture interface 11, and a first puncture sealing gasket 5 is provided in the stepped hole with an interference fit. One end face of the first puncture sealing gasket 5 abuts against the stepped surface of the stepped hole, and the inner diameter of the opening end of the puncture interface 11 is smaller than the inner diameter of the position where the first puncture sealing gasket 5 is located.

[0066] like Figure 3 As shown, the first puncture sealing gasket 5 is installed in the puncture interface 11 by an interference fit, which effectively ensures the sealing of the puncture interface 11. The puncture interface 11 also adopts a stepped hole and constriction structure design, which effectively restricts the axial movement of the first puncture sealing gasket 5 and ensures its stability. Similarly, in some embodiments, the first puncture sealing gasket 5 is installed in the puncture interface 11 by hot melt welding, which is also within the protection scope of this application.

[0067] In some embodiments, the end of the puncture interface 11 is provided with an annular insertion groove for catheter insertion, and the inner wall of the insertion groove on the side near the center line of the puncture interface 11 can be press-fitted with or sealed welded to the inner wall of the catheter.

[0068] By directly setting the insertion slot, the catheter and the puncture port 11 are fixedly connected, so that the adapter body 1 and the infusion set become one unit, further preventing the leakage of medicine at the puncture port 11.

[0069] In some embodiments, a protective cap 2 is also included, which is detachably fixed to the adapter body 1 for wrapping and shielding the puncture needle 14;

[0070] like Figure 1 As shown, a removable protective cap 2 is provided on the outside of the puncture needle 14 to protect the puncture needle 14, prevent injury to the user, and prevent the puncture needle 14 from being contaminated.

[0071] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0072] The liquid storage bottle adapter provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A liquid storage bottle adapter, characterized in that, The adapter body (1) includes a liquid storage chamber (15) inside and a puncture interface (11), a drug dispensing interface (12), an air inlet interface (13) and a puncture needle (14) outside. The puncture needle (14) is provided with a gas channel (142) with a single-end opening and several sets of independent liquid channels (141). The other end of the puncture port (11) and the liquid channel (141) are both connected to the liquid storage chamber (15), and the puncture port (11) is connected to the liquid storage chamber (15); At least one set of the liquid channels (141) is connected at the other end to the liquid storage chamber (15); The liquid storage chamber (15) or at least one set of the liquid channels (141) is connected to the drug dispensing interface (12); The gas passage (142) is connected to the air inlet (13); A water-resistant and breathable membrane (4) is provided inside the air inlet (13).

2. The liquid storage bottle adapter according to claim 1, characterized in that, The centerline of the gas channel (142) is parallel to the axis of the puncture needle (14), and the opening end of the gas channel (142) is located at the puncture end of the puncture needle (14).

3. The liquid storage bottle adapter according to claim 1, characterized in that, The air intake port (13) is perpendicular to the center line of the adapter body (1), and the open end of the air intake port (13) is provided with an openable and closable air intake plug (3).

4. The liquid storage bottle adapter according to claim 1, characterized in that, The dispensing interface (12) is perpendicular to the center line of the adapter body (1), and a second puncture sealing gasket (6) is fixedly provided at the open end of the dispensing interface (12).

5. The liquid storage bottle adapter according to claim 1, characterized in that, The dispensing interface (12) is provided with a stepped hole, and a second puncture sealing gasket (6) is installed in the stepped hole with an interference fit. One end face of the second puncture sealing gasket (6) abuts against the stepped surface of the stepped hole. The inner diameter of the opening end of the dispensing interface (12) is smaller than the inner diameter of the position of the second puncture sealing gasket (6).

6. The liquid storage bottle adapter according to claim 4, characterized in that, The outer periphery of the dispensing interface (12) is provided with a limiting slot (121) and / or a limiting wedge (122) for fixing the dispensing connector (7) at the dispensing interface (12).

7. The liquid storage bottle adapter according to claim 1, characterized in that, The centerline of the puncture interface (11) overlaps with the centerline of the adapter body (1), and a first puncture sealing gasket (5) is provided inside the puncture interface (11).

8. The liquid storage bottle adapter according to claim 1, characterized in that, The puncture interface (11) is provided with a stepped hole, and a first puncture sealing gasket (5) is provided in the stepped hole with an interference fit. One end face of the first puncture sealing gasket (5) abuts against the stepped surface of the stepped hole. The inner diameter of the opening end of the puncture interface (11) is smaller than the inner diameter of the position of the first puncture sealing gasket (5).

9. The liquid storage bottle adapter according to claim 1, characterized in that, The end of the puncture port (11) is provided with an annular insertion groove for catheter insertion. The inner wall of the insertion groove on the side near the center line of the puncture port (11) can be press-fitted with or sealed welded to the inner wall of the catheter.

10. The liquid storage bottle adapter according to any one of claims 1-9, characterized in that, It also includes a protective cap (2), which is detachably fixed to the adapter body (1) for wrapping and shielding the puncture needle (14).

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