Insulin pump infusion pipeline separation protection device

By designing a separation protection device for the insulin pump infusion tubing, and utilizing the combination of an isolation membrane and a puncture needle, the problem of contamination after the pump tubing is separated is solved, enabling the safe and convenient use of the insulin pump and improving the stability and reliability of infusion.

CN223682868UActive Publication Date: 2025-12-19THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
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Patent Information

Application Number
CN202520364048.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2025-12-19
Estimated Expiration
2035-03-04

AI Technical Summary

Technical Problem

After the existing insulin pump tubing is detached, the rubber stopper is easily lost, increasing the risk of contamination inside the tubing, leading to bacterial growth and infection. Furthermore, frequent tubing replacements increase the financial burden on patients.

Method used

Design an insulin pump infusion tubing separation and protection device, comprising an infusion tubing and a subcutaneous indwelling tubing. Utilizing first and second isolation membranes and a puncture needle, and through the cooperation of a slider and a connector, the pump tubing port is sealed and protected against contamination, ensuring pure insulin infusion.

Benefits of technology

It effectively prevents external impurities and bacteria from entering the subcutaneous indwelling catheter, maintains the purity of insulin in the catheter, improves the stability and safety of infusion, reduces adverse reactions, and lowers the frequency and cost of replacement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a separation protection device for an insulin pump infusion pipeline. The separation protection device comprises an infusion pipeline and a subcutaneous indwelling pipeline, a separation protection mechanism is arranged on the infusion pipeline, and the infusion pipeline is communicated with the subcutaneous indwelling pipeline through the separation protection mechanism; a first isolating membrane is fixedly arranged in the subcutaneous indwelling pipeline, and the first isolating membrane is arranged close to the output end of the subcutaneous indwelling pipeline; the separation protection mechanism comprises a connector, a sliding block, a sealing film, a second isolating film and a puncture needle head; the connector is in a hollow cylinder shape and is fixedly arranged at the output end of the infusion pipeline. The sliding block is arranged in the connector, and the sliding block can slide left and right relative to the connector; the sealing film and the second isolating film are fixedly arranged in the connector, the sealing film is arranged close to one side of the input end of the connector, and the second isolating film is arranged close to one side of the output end of the connector; the puncture needle head is arranged on the connector in a penetrating mode, one end of the puncture needle head penetrates through the sealing film to be arranged in the infusion pipeline, and the other end of the puncture needle head is arranged between the sliding block and the second isolating film.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, and it is a kind of insulin pump infusion pipeline separation protection device. BACKGROUND

[0002] In the process that diabetic patient uses insulin pump to carry out blood sugar control, insulin pump pump pipe separation is more common operating scene;For example, when pump pipe needs to be temporarily separated, such as replacing insulin pump consumables, patient bath, in order to prevent insulin leakage and external impurities into pump pipe, currently, rubber plug is generally used to cover two ports after pump pipe and insulin pump are separated.

[0003] However, the use of such rubber plug has many drawbacks. Rubber plug is small and delicate, in actual use process, patient can easily lose it, once rubber plug is lost, exposed pump pipe port is directly contacted with external environment, greatly increase the risk of contamination in pipe;Contamination in pipe can cause bacteria to breed, increase the risk of infection, cause damage to patient health;And, frequently replacing pump pipe that cannot be used due to contamination will undoubtedly increase the economic burden of patient.

[0004] Therefore, an apparatus capable of effectively solving the port protection problem after insulin pump pump pipe separation is needed to meet the actual needs of diabetic patients to safely and conveniently use insulin pump. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of insulin pump infusion pipeline separation protection device to solve the technical problems mentioned in the above background art.

[0006] To achieve the above object, the utility model adopts the technical scheme that a kind of insulin pump infusion pipeline separation protection device, including infusion pipeline and subcutaneous indwelling pipeline;Separation protection mechanism is equipped on the infusion pipeline, and the infusion pipeline is communicated with the subcutaneous indwelling pipeline by the separation protection mechanism;

[0007] The first isolation membrane is arranged on the output end of the subcutaneous indwelling pipeline;

[0008] The separation protection mechanism includes: connecting head, slider, sealing membrane, second isolation membrane and puncture needle head;

[0009] The connecting head is hollow cylindrical, and the connecting head is fixedly arranged on the output end of the infusion pipeline;The slider is arranged in the connecting head, and the slider is slidable relative to the connecting head;The sealing membrane and the second isolation membrane are fixedly arranged in the connecting head, and the sealing membrane is arranged on the side of the input end of the connecting head, and the second isolation membrane is arranged on the side of the output end of the connecting head;

[0010] The puncture needle is arranged on the connecting head, one end of the puncture needle is arranged in the infusion pipeline through the sealing film, and the other end of the puncture needle is arranged between the slider and the second isolation film.

[0011] The technical scheme has the beneficial effects that the insulin pump infusion pipeline separation protection device discards the traditional method of covering the two ports of the pump pipeline and the insulin pump after separation with a rubber plug, sets the first isolation film in the subcutaneous indwelling pipeline near the output end, effectively blocks the entry of foreign impurities, bacteria and other pollutants into the subcutaneous indwelling pipeline when the device is separated, and guarantees the cleanliness of the subcutaneous infusion environment; the sealing film and the second isolation film are arranged in the connecting head of the separation protection mechanism at the input end and the output end respectively, the second isolation film can prevent foreign substances from invading the infusion pipeline, maintain the purity of insulin in the pipeline, and avoid changes in drug efficacy or adverse reactions caused by pollution; the puncture needle is arranged in cooperation with the slider and the connecting head, so that the connection of the infusion pipeline and the subcutaneous indwelling pipeline is relatively convenient to operate, and the puncture needle can be isolated by moving the slider when not in use, further guaranteeing the safety and hygiene of the device, and the whole device helps to improve the stability and reliability of insulin pump infusion, and provides safer and more effective treatment for patients.

[0012] In the preferred scheme, the slider is provided with sliding protrusions, and the sliding protrusions are arranged in two groups and are arranged on the two sides of the slider respectively.

[0013] The technical scheme has the beneficial effects that the two groups of sliding protrusions arranged on the two sides of the slider respectively provide better force points for the user when operating the slider, and the user can control the slider to slide left and right in the connecting head more easily and accurately.

[0014] In the preferred scheme, the connecting head is provided with a sliding groove, the sliding groove is arranged on the outer wall of the connecting head, the sliding groove is matched with the sliding protrusions, and the sliding protrusions are arranged in the sliding groove.

[0015] The technical scheme has the beneficial effects that the sliding groove matched with the sliding protrusions on the two sides of the slider is arranged on the outer wall of the connecting head, the sliding protrusions are embedded in the sliding groove, accurate guidance is provided for the sliding of the slider, deviation or jamming of the slider during sliding is avoided, the operation of adjusting the position of the puncture needle or isolating the puncture needle is more rapid and stable, the operation experience is greatly optimized, and the convenience and reliability of the use of the device are comprehensively improved.

[0016] In the preferred scheme, the subcutaneous indwelling pipeline is provided with an injection needle tube, and the input end of the injection needle tube is arranged towards the first isolation film.

[0017] The inner diameter of the injection needle tube is matched with the outer diameter of the puncture needle, and the injection needle tube and the puncture needle are coaxially arranged.

[0018] The technical scheme has the beneficial effects that: by arranging the injection needle tube in the subcutaneous indwelling pipeline, the injection needle tube is coaxially arranged with the puncture needle head, and the inner diameter of the injection needle tube is matched with the outer diameter of the puncture needle head, so that when the infusion pipeline and the subcutaneous indwelling pipeline are connected, the puncture needle head can be precisely and smoothly inserted into the injection needle tube, the close matching and coaxial design effectively avoid the leakage of insulin during infusion, ensure the accuracy and stability of the infusion path, and make the insulin more efficiently injected into the body.

[0019] In the preferred scheme, the subcutaneous indwelling pipeline is provided with a fixing member, the fixing member is arranged on the inner side of the first isolation film, and the injection needle tube is arranged through the fixing member.

[0020] The technical scheme has the beneficial effects that: by arranging the fixing member on the inner side of the first isolation film in the subcutaneous indwelling pipeline, and arranging the injection needle tube through the fixing member, the design plays a key role in stabilizing the injection needle tube, the fixing member can prevent the injection needle tube from shaking and moving in the subcutaneous indwelling pipeline, and ensure that the puncture needle head and the injection needle tube always maintain a precise docking state, thereby further improving the stability and reliability of insulin infusion.

[0021] In the preferred scheme, the first isolation film and the second isolation film are made of rubber material, and the structure is thin in the middle and thick on both sides.

[0022] The technical scheme has the beneficial effects that: by arranging the first isolation film and the second isolation film to be made of rubber material and having a structure of being thin in the middle and thick on both sides, the rubber material has good flexibility and elasticity, which can tightly fit the inner wall of the pipeline to ensure good sealing performance and effectively prevent bacteria, dust and other pollutants from entering, and the wear-resistant and corrosion-resistant characteristics of the rubber material prolong the service life of the isolation film and reduce the inconvenience and cost caused by frequent replacement; the structure of being thin in the middle and thick on both sides ensures the isolation effect, the thin middle part facilitates the puncture operation of the puncture needle head, the puncture process is more smooth, and the damage to the puncture needle head and the isolation film is reduced; and the thick edges enhance the sealing performance and firmness of the edges of the isolation film, prevent liquid from leaking from the edges, and further protect the clean environment inside the pipeline.

[0023] In the preferred scheme, the size or radius of the first isolation film is larger than the size or radius of the second isolation film.

[0024] The technical scheme has the beneficial effects that: by arranging the first isolation film to have a size or radius larger than that of the second isolation film, a better isolation effect and spatial layout are achieved.

[0025] In the preferred scheme, the connection between the separation protection mechanism and the subcutaneous indwelling pipeline is any one of screw connection, thread connection and buckle connection, and is preferably screw connection.

[0026] The technical scheme has the beneficial effects that: the separation protection mechanism and the subcutaneously indwelling pipeline can be connected by any one of the screw connection, the thread connection and the buckle connection, preferably the screw connection, the screw connection can generate a large friction force and a fastening force during the connection, thereby ensuring that the two are stably connected, effectively resisting the connection loosening caused by external force pulling and shaking during use, preventing insulin leakage, and ensuring the stability and safety of insulin infusion. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present application or the technical scheme in the prior art, the drawings needed in the following description of the specific embodiments or the prior art will be briefly introduced. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0028] Figure 1 The separation protection mechanism and the infusion pipeline, the subcutaneously indwelling pipeline assembly cross-sectional view provided by the present application are shown in the following figure:

[0029] Figure 2 The puncture needle assembly cross-sectional view provided by the present application is shown in the following figure:

[0030] Figure 3 The separation protection mechanism and the subcutaneously indwelling pipeline explosion schematic diagram provided by the present application are shown in the following figure:

[0031] Figure 4 The separation protection mechanism and the infusion pipeline assembly three-dimensional schematic diagram provided by the present application are shown in the following figure:

[0032] Figure 5 The separation protection mechanism assembly top view cross-sectional schematic diagram provided by the present application is shown in the following figure:

[0033] Explanation of reference signs;

[0034] Infusion pipeline; 2-Subcutaneously indwelling pipeline; 21-First isolation film; 22-Infusion needle tube; 23-Fixing part; 3-Separation protection mechanism; 31-Connecting head; 312-Sliding groove; 32-Sliding block; 321-Sliding protrusion; 33-Sealing film; 34-Second isolation film; 35-Puncture needle. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0036] In the description of the utility model, it needs to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model by indicating or implying that the indicated device or element must have a particular orientation, configuration and operation.

[0037] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0038] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] Embodiment 1

[0041] As shown in Figures 1 to 5 An insulin pump infusion pipeline separation protection device, comprising an infusion pipeline 1 and a subcutaneous indwelling pipeline 2; The separation protection mechanism 3 is arranged on the infusion pipeline 1, and the infusion pipeline 1 is communicated with the subcutaneous indwelling pipeline 2 through the separation protection mechanism 3;

[0042] The subcutaneous indwelling conduit 2 is provided with a first isolation film 21, and the first isolation film 21 is arranged at the output end of the subcutaneous indwelling conduit 2;

[0043] The separation protection mechanism 3 comprises a connecting head 31, a sliding block 32, a sealing film 33, a second isolation film 34 and a puncture needle 35.

[0044] The connecting head 31 is a hollow cylinder, and the connecting head 31 is fixedly arranged at the output end of the infusion conduit 1; the sliding block 32 is arranged in the connecting head 31, and the sliding block 32 is slidable left and right relative to the connecting head 31; the sealing film 33 and the second isolation film 34 are fixedly arranged in the connecting head 31, and the sealing film 33 is arranged at the side of the input end of the connecting head 31, and the second isolation film 34 is arranged at the side of the output end of the connecting head 31.

[0045] The puncture needle 35 is arranged through the connecting head 31, one end of the puncture needle 35 is arranged in the infusion conduit 1 through the sealing film 33, and the other end of the puncture needle 35 is arranged between the sliding block 32 and the second isolation film 34.

[0046] By arranging the first isolation film 21 close to the output end in the subcutaneous indwelling conduit 2, when the device is separated, the impurities, bacteria and other pollutants in the external environment can be effectively blocked from entering the subcutaneous indwelling conduit 2, thereby ensuring the cleanliness of the subcutaneous infusion environment; by arranging the sealing film 33 and the second isolation film 34 in the connecting head 31 of the separation protection mechanism 3 respectively at the input end and the output end, the second isolation film 34 can prevent external substances from invading the infusion conduit 1, thereby maintaining the purity of the insulin in the conduit and avoiding changes in drug efficacy or adverse reactions caused by pollution; the arrangement of the puncture needle 35 in cooperation with the sliding block 32 and the connecting head 31 makes the connection of the infusion conduit 1 and the subcutaneous indwelling conduit 2 relatively convenient to operate, and the puncture needle 35 can be moved by the sliding block 32 when not in use, thereby further ensuring the safety and hygiene of the device, and the whole device helps to improve the stability and reliability of the insulin pump infusion, thereby providing safer and more effective treatment for patients.

[0047] In this embodiment, the sliding block 32 is provided with sliding protrusions 321, and the sliding protrusions 321 are arranged in two groups and are arranged at the two sides of the sliding block 32 respectively; by arranging the two groups of sliding protrusions 321 at the two sides of the sliding block 32, the user can obtain a better force point when operating the sliding block 32, and more easily and accurately control the sliding block 32 to slide left and right in the connecting head 31.

[0048] In this embodiment, the connecting head 31 is provided with a sliding groove 312, which is arranged on the outer wall of the connecting head 31 and is matched with the sliding protrusion 321 arranged in the sliding groove 312. By arranging the sliding groove 312 matched with the sliding protrusion 321 on both sides of the sliding block 32 on the outer wall of the connecting head 31, the sliding protrusion 321 is embedded in the sliding groove 312 to provide accurate guidance for the sliding of the sliding block 32, avoid deviation or jamming of the sliding block 32 during sliding, and further make the operation of adjusting the position of the puncture needle 35 or isolating the puncture needle 35 more rapid and stable, greatly optimize the operation experience, and comprehensively improve the convenience and reliability of the device.

[0049] In this embodiment, the subcutaneous indwelling pipeline 2 is provided with an injection needle tube 22, and the input end of the injection needle tube 22 is arranged towards the first isolation film 21.

[0050] The inner diameter of the injection needle tube 22 is matched with the outer diameter of the puncture needle 35, and the injection needle tube 21 and the puncture needle 35 are coaxially arranged.

[0051] By arranging the injection needle tube 22 with the input end arranged towards the first isolation film 21 in the subcutaneous indwelling pipeline 2, the inner diameter of the injection needle tube 22 is matched with the outer diameter of the puncture needle 35, and the two are coaxially arranged. When the infusion pipeline 1 and the subcutaneous indwelling pipeline 2 are connected, the puncture needle 35 can be accurately and smoothly inserted into the injection needle tube 22. This close matching and coaxial design effectively avoids leakage of insulin during infusion, ensures the accuracy and stability of the infusion path, and enables more efficient injection of insulin into the body.

[0052] In this embodiment, the subcutaneous indwelling pipeline 2 is provided with a fixing member 23 arranged on the inner side of the first isolation film 21.

[0053] The injection needle tube 22 is arranged through the fixing member 23. By arranging the fixing member 23 on the inner side of the first isolation film 21 in the subcutaneous indwelling pipeline 2, the injection needle tube 22 is arranged through the fixing member 23. This design plays a key role in stabilizing the injection needle tube 22, and the fixing member 23 can prevent the injection needle tube 22 from shaking or shifting in the subcutaneous indwelling pipeline 2, ensuring that the puncture needle 35 and the injection needle tube 22 always maintain an accurate docking state, further improving the stability and reliability of insulin infusion.

[0054] In this embodiment, the first isolation film 21 and the second isolation film 34 are made of rubber material, and have a structure of thin in the middle and thick on both sides. By making the first isolation film 21 and the second isolation film 34 of rubber material and having a structure of thin in the middle and thick on both sides, the rubber material has good flexibility and elasticity, which can tightly fit the inner wall of the pipeline, ensure good sealing, effectively prevent bacteria, dust and other pollutants from entering, and prolong the service life of the isolation film due to its wear resistance and corrosion resistance, thereby reducing the inconvenience and cost caused by frequent replacement. The structure of thin in the middle and thick on both sides ensures the isolation effect, and the thin middle part facilitates the puncture operation of the puncture needle 35, making the puncture process smoother and reducing damage to the puncture needle 35 and the isolation film itself. The thick edges enhance the sealing and firmness of the edges of the isolation film, preventing liquid from leaking from the edges, and further protecting the clean environment inside the pipeline.

[0055] In this embodiment, the size or radius of the first isolation film 21 is larger than that of the second isolation film 34. By making the size or radius of the first isolation film 21 larger than that of the second isolation film 34, a more optimal isolation effect and spatial layout are achieved.

[0056] In this embodiment, the connection between the separation protection mechanism 3 and the subcutaneous indwelling pipeline 2 is any one of screw connection, threaded connection and buckle connection, preferably screw connection. The separation protection mechanism 3 and the subcutaneous indwelling pipeline 2 can be connected by any one of screw connection, threaded connection and buckle connection, and screw connection is preferred. Screw connection relies on a tight spiral structure to generate a large friction force and fastening force during connection, ensuring stable connection and effectively resisting connection loosening caused by external force pulling and shaking during use, preventing insulin leakage and ensuring the stability and safety of insulin infusion.

[0057] Workflow of the utility model

[0058] Preparation stage: check whether all parts of the device are intact, including the infusion pipeline 1, the subcutaneous indwelling pipeline 2, the separation protection mechanism 3, etc., confirm that the first isolation film 21, the second isolation film 34 and the sealing film 33 are not damaged, and check whether the sliding protrusion 321 on the sliding block 32 can smoothly slide in the sliding groove 312 on the outer wall of the connecting head 31 to ensure smooth operation.

[0059] Connection stage: tightly connect the connecting head 31 of the separation protection mechanism 3 to the subcutaneous indwelling pipeline 2 by screw connection, and push the sliding block 32 with your hand, so that the output end of the puncture needle 35 passes through the second isolation film 34 and the first isolation film 21 in turn and enters the subcutaneous indwelling pipeline 2, and the puncture needle 35 is inserted into the infusion needle tube 22.

[0060] Infusion stage: insulin from infusion pipeline 1 through the puncture needle 35, puncture needle 35 accurate insertion into the injection needle tube 22, insulin through the injection needle tube 22, injection subcutaneously;

[0061] Separation stage: reverse rotation, separate the separation protection mechanism 3 from the subcutaneous indwelling pipeline 2; and slide the slider 32, so that the puncture needle 35 retreats and is isolated inside the second isolation film 34, the first isolation film 21 and the second isolation film 34 protect the subcutaneous indwelling pipeline 2 and the infusion pipeline 1 port respectively, prevent pollution.

[0062] It should be noted that in this paper, the term "including", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.

[0063] The principle and implementation mode of the present application are described in specific examples herein, and the above examples are only used to help understand the method and its core idea.

[0064] The above is only the preferred embodiment of the present application, it should be pointed out, due to the limited nature of the expression, and there are objectively infinite specific structure, for the ordinary skilled in the art, without departing from the principles of the present application, can make a number of improvements, decoration or change, but also can be combined in the above technical features with appropriate way; these improvements decoration, change or combination, or without improvement will be the concept and technical scheme of the present application directly applied to other occasions, should be regarded as the protection of the present application.

Claims

1. An insulin pump infusion line disconnect protection device comprising an infusion line (1) and a subcutaneously indwelling line (2), characterized in that: The infusion pipeline (1) is provided with a separation protection mechanism (3), and the infusion pipeline (1) is communicated with the subcutaneous indwelling pipeline (2) through the separation protection mechanism (3); The subcutaneous indwelling pipeline (2) is internally provided with a first isolation membrane (21), and the first isolation membrane (21) is arranged at the output end of the subcutaneous indwelling pipeline (2); The separation protection mechanism (3) comprises a connecting head (31), a sliding block (32), a sealing membrane (33), a second isolation membrane (34) and a puncture needle (35); The connecting head (31) is a hollow cylindrical shape, and the connecting head (31) is fixedly arranged at the output end of the infusion pipeline (1); the sliding block (32) is arranged in the connecting head (31), and the sliding block (32) is slidable left and right relative to the connecting head (31); the sealing membrane (33) and the second isolation membrane (34) are fixedly arranged in the connecting head (31), the sealing membrane (33) is arranged at one side of the input end of the connecting head (31), and the second isolation membrane (34) is arranged at one side of the output end of the connecting head (31); The puncture needle (35) is arranged through the connecting head (31), one end of the puncture needle (35) is arranged in the infusion pipeline (1) through the sealing membrane (33), and the other end of the puncture needle (35) is arranged between the sliding block (32) and the second isolation membrane (34).

2. The insulin pump infusion set disconnect protection device of claim 1, wherein: The sliding block (32) is provided with sliding protrusions (321), and the sliding protrusions (321) are arranged in two groups and are arranged at two sides of the sliding block (32) respectively.

3. An insulin pump infusion set disconnect protection device according to claim 2, wherein: The connecting head (31) is provided with a sliding groove (312), the sliding groove (312) is arranged on the outer wall of the connecting head (31), the sliding groove (312) is matched with the sliding protrusions (321), and the sliding protrusions (321) are arranged in the sliding groove (312).

4. The insulin pump infusion set disconnect protection device of claim 1, wherein: The subcutaneous indwelling pipeline (2) is internally provided with an injection needle tube (22), and the input end of the injection needle tube (22) is arranged towards the first isolation membrane (21).

5. An insulin pump infusion set disconnect protection device according to claim 4, wherein: The inner diameter of the injection needle tube (22) is matched with the outer diameter of the puncture needle (35), and the injection needle tube (22) and the puncture needle (35) are coaxially arranged.

6. The insulin pump infusion set disconnect protection device of claim 4, wherein: The subcutaneous indwelling pipeline (2) is internally provided with a fixing member (23), the fixing member (23) is arranged at the inner side of the first isolation membrane (21), The injection needle tube (22) is arranged through the fixing member (23).

7. The insulin pump infusion set disconnect protection device of claim 1, wherein: The first isolation membrane (21) and the second isolation membrane (34) are made of rubber material, and the structure is that the middle part is thin and the two sides are thick.

8. An insulin pump infusion set disconnect protection device according to claim 7, characterized in that: The size or radius of the first isolation membrane (21) is larger than that of the second isolation membrane (34).

9. The insulin pump infusion set disconnect protection device of claim 1, wherein: The connection mode of the separation protection mechanism (3) and the subcutaneous indwelling pipeline (2) adopts any one of screw connection, thread connection and buckle connection.