Medical pipeline leak-proof and anti-dropping connecting device
By designing a leak-proof and detachment-proof connection device for medical tubing, and utilizing the cooperation of the clamping protrusion and the sealing element, rapid sealing and convenient separation of medical tubing are achieved, solving the problem of unstable connection in existing technologies and improving the stability of the connection and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU ZENGCHENG HOSPITAL OF TRADITIONAL CHINESE MEDICINE
- Filing Date
- 2025-03-07
- Publication Date
- 2026-06-19
AI Technical Summary
Current medical tubing connections are unstable, prone to displacement or detachment, leading to patient infection, and cannot achieve rapid insertion and separation.
Design a medical tubing anti-leakage and anti-detachment connection device including a first connector and a second connector. The second base of the second connector is inserted into the first through hole of the first connector. The retaining protrusion and the sealing element are used to achieve quick sealing and positioning. When disassembling, the pressing part can be pressed to separate.
It enables rapid sealing and convenient separation of medical tubing, avoids tubing detachment, and improves connection stability and ease of operation.
Smart Images

Figure CN224370442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a medical pipeline anti-leakage and anti-detachment connection device. Background Technology
[0002] In clinical practice, it is common to need to replace or connect infusion extension tubes to indwelling needles, indwelling needles to drainage tubes, drainage tubes to external connecting tubes, or drainage tubes to urine bag connecting tubes. Previously, the common method was to secure the connection between the two tubes with gauze and then with ordinary tape. This method is time-consuming and not very secure; the two connected tubes may shift or even detach, causing infection in the patient. To address these shortcomings, spiral connectors or pagoda-shaped connectors have been designed. While spiral connectors can achieve a connection, it is difficult to determine if the connection is precisely aligned. Over-tightening or under-tightening during connection can lead to inconsistent rotation for each user, resulting in an incomplete seal and even tube detachment. Furthermore, quick connection and disconnection are not possible. Utility Model Content
[0003] The main purpose of this utility model is to overcome the above-mentioned shortcomings and deficiencies of the prior art and to provide a medical pipeline anti-leakage and anti-detachment connection device.
[0004] A medical tubing anti-leakage and anti-detachment connection device includes a first pipe, a second pipe, a first connector, and a second connector. The first connector is mounted on the first pipe, and the second connector is mounted on the second pipe. The first connector includes a first base with a first groove extending axially along the first base. A first through hole extending axially through the first base is formed at the bottom of the first groove, and a retaining portion protrudes axially from the opening of the first groove towards the first base. The second connector includes a second base with a through hole extending axially along the second base. The second base has a second through hole, and at least two elastic retaining members are provided on the periphery of the second base. Each elastic retaining member includes a connecting part, a retaining protrusion, and a pressing part. The retaining protrusion is located between the connecting part and the pressing part. The second base has an annular receiving groove, and a sealing member is installed in the annular receiving groove. When the first connecting member and the second connecting member are inserted, the end of the second base is inserted into the first through hole, the retaining protrusion abuts against the retaining part, thereby causing the sealing member to abut against the hole wall of the first through hole. The pressing part extends out of the first groove, and the first through hole and the second through hole are connected.
[0005] This invention involves inserting the second base of the second connector into the first through hole of the first connector, with the retaining protrusion abutting against the retaining part to achieve positioning and locking, thereby enabling the sealing element on the second base to abut against the hole wall of the first through hole for quick sealing; during disassembly and separation, it is only necessary to press the pressing part extending out of the first groove to separate the retaining protrusion from the retaining part, separate the sealing element from the hole wall of the first through hole, and pull out the second base to achieve quick separation between the two.
[0006] In one embodiment, the holding portion includes at least two holding platforms, the width of which is proportional to its distance from the first through hole, and the holding protrusion abuts against the holding platform.
[0007] In one embodiment, the upper end side of the second base is provided with an inclined first guide portion, which is inserted into the first through hole.
[0008] In one embodiment, the lower end side of the second base is provided with an inclined second guide portion, which abuts against the wall of the second pipe.
[0009] In one embodiment, the second substrate is provided with a plurality of annular receiving grooves, and each of the annular receiving grooves is provided with the sealing element.
[0010] In one embodiment, the size of the seal varies and can be determined according to the size of the gap that needs to be sealed.
[0011] In one embodiment, the number of the resilient retainers is two, three, or four, preferably two.
[0012] The advantages of this medical tubing anti-leakage and anti-detachment connection device are as follows: The second base of the second connector is inserted into the first through hole of the first connector, and the retaining protrusion abuts against the retaining part to achieve positioning and locking, allowing the sealing element on the second base to abut against the wall of the first through hole for rapid sealing. During disassembly and separation, simply press the pressing part extending out of the first groove to separate the retaining protrusion from the retaining part, separate the sealing element from the wall of the first through hole, and pull out the second base to achieve rapid separation between the two. This medical tubing anti-leakage and anti-detachment connection device has a simple structure, is easy to operate, and is suitable for connections with various tubing types, such as between an infusion extension tube and an indwelling needle tube, between an indwelling needle tube and a drainage tube, between a drainage tube and an external connecting tube, or between a drainage tube and a urine bag connecting tube. Attached Figure Description
[0013] Figure 1 This is a partial structural assembly diagram of the medical pipeline anti-leakage and anti-detachment connection device of this utility model;
[0014] Figure 2 for Figure 1 Partial structural cross-sectional view of the medical pipeline anti-leakage and anti-detachment connection device of this utility model;
[0015] Figure 3 This is a cross-sectional view of the medical pipeline anti-leakage and anti-detachment connection device of this utility model;
[0016] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the medical pipeline anti-leakage and anti-detachment connection device of this utility model;
[0017] Figure 5 for Figure 4 Enlarged schematic diagram of part of the structure of the medical pipeline anti-leakage and anti-detachment connection device of this utility model;
[0018] Figure 6 This is a schematic diagram of the structure of Embodiment 3 of the medical pipeline anti-leakage and anti-detachment connection device of this utility model. Detailed Implementation
[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0024] A medical tubing anti-leakage and anti-detachment connection device includes a first pipe, a second pipe, a first connector, and a second connector. The first connector is mounted on the first pipe, and the second connector is mounted on the second pipe. The first connector includes a first base with a first groove extending axially along the first base. A first through hole extending axially through the first base is formed at the bottom of the first groove, and a retaining portion protrudes axially from the opening of the first groove towards the first base. The second connector includes a second base with a through hole extending axially along the second base. The second base has a second through hole, and at least two elastic retaining members are provided on the periphery of the second base. Each elastic retaining member includes a connecting part, a retaining protrusion, and a pressing part. The retaining protrusion is located between the connecting part and the pressing part. The second base has an annular receiving groove, and a sealing member is installed in the annular receiving groove. When the first connecting member and the second connecting member are inserted, the end of the second base is inserted into the first through hole, the retaining protrusion abuts against the retaining part, thereby causing the sealing member to abut against the hole wall of the first through hole. The pressing part extends out of the first groove, and the first through hole and the second through hole are connected.
[0025] This invention involves inserting the second base of the second connector into the first through hole of the first connector, with the retaining protrusion abutting against the retaining part to achieve positioning and locking, thereby enabling the sealing element on the second base to abut against the hole wall of the first through hole for rapid sealing. For disassembly and separation, simply press the pressing part extending from the first groove to separate the retaining protrusion from the retaining part, separate the sealing element from the hole wall of the first through hole, and then pull out the second base to achieve rapid separation between the two. This invention's medical pipe leak-proof and detachment-proof connection device has a simple structure and is easy to operate.
[0026] Example 1
[0027] Please see Figures 1 to 3 This utility model provides a medical pipe anti-leakage and anti-detachment connection device for quickly connecting and fixing two medical pipes. It includes a first pipe 1, a second pipe 2, a first connector 3, and a second connector 4. The first connector 3 is installed on the first pipe 1, and the second connector 4 is installed on the second pipe 2. The first connector 3 and the second connector 4 are fixed and sealed by plugging. When separation is required, pressing the second connector 4 can achieve quick separation from the first connector 3.
[0028] For more details, please refer to Figure 2 The first connector 3 includes a first base 31, on which a first groove 32 extending axially along the first base 31 is formed. A first through hole 33 axially penetrating the first base 31 is formed at the bottom of the first groove 32. A retaining portion 34 is provided at the opening of the first groove 32 in the axial direction of the first base 31. Preferably, the cross-section of the first base 31 is boss-shaped, facilitating the fixing of the first pipe 1 and the first connector 3. It is understood that the first groove 32 is a circular groove, and the first through hole 33 is a circular hole, facilitating sealing between the first connector 3 and the second connector 4.
[0029] For more details, please refer to Figure 1 and Figure 2 The second connector 4 includes a second base 41, on which a second through hole 42 is formed along the axial direction of the second base 41. Two elastic retaining members 43 are provided on the periphery of the second base 41. Each elastic retaining member 43 includes a connecting portion 431, a retaining protrusion 432, and a pressing portion 433. The retaining protrusion 432 is located between the connecting portion 431 and the pressing portion 433. An annular receiving groove 411 is provided on the second base 41, and a sealing member 44 is installed within the annular receiving groove 411. It is understood that the connecting portion 431 and the pressing portion 433 have a certain degree of elasticity relative to the second base 41, allowing the retaining protrusion 432 to move closer to or further away from the second base 41.
[0030] When the first connector 3 and the second connector 4 are inserted into this invention, the end of the second base 41 is inserted into the first through hole 33, and the retaining protrusion 432 abuts against the retaining part 34, thereby causing the sealing member 44 to abut against the wall of the first through hole 33, sealing the second base 41 with the first through hole 33. The pressing part 433 extends out of the first groove 32, connecting the first through hole 33 and the second through hole 42. When it is necessary to separate the first connector 3 and the second connector 4, simply press the pressing part 433 extending out of the first groove 32 to separate the retaining protrusion 432 from the retaining part 34, separate the sealing member 44 from the wall of the first through hole 33, and pull out the second base 41 to achieve quick and easy fixed insertion and separation between the two.
[0031] For more details, please refer to Figure 2 The upper end side of the second base 41 is provided with an inclined first guide part 412. The first guide part 412 is inserted into the first through hole 33 to facilitate the insertion and guidance of the first connector 3 and the second connector 4.
[0032] For more details, please refer to Figure 2 and Figure 3 The lower end side of the second base 41 is provided with an inclined second guide part 413. The second guide part 413 abuts against the pipe wall of the second pipe 2, which facilitates the insertion, guidance and fixation of the second pipe 2 and the second connector 4.
[0033] For more details, please refer to Figure 1 and Figure 2 The number of elastic retaining members 43 can be two, three, four or even more. This utility model is illustrated by setting two elastic retaining members 43, which is also the optimal number setting, making it convenient for one-handed pressing, insertion and separation.
[0034] Example 2
[0035] Please see Figure 4 and Figure 5 This utility model provides a medical pipe anti-leakage and anti-detachment connection device, which is basically the same as the structure of Embodiment 1. The difference is that the holding part 34 includes at least two holding platforms 341. The width of the holding platform 341 is proportional to its distance from the first through hole 33. The farther the holding platform 341 is from the first through hole 33, the wider the holding platform 341 is. The holding protrusion 432 abuts against the holding platform 341, so that the holding protrusion 432 can be held on the holding platform 341 at different positions from the first through hole 33, thereby adjusting the degree of fit between the sealing member 44 and the hole wall of the first through hole 33, achieving a better sealing effect and ensuring the connection and sealing of the two medical pipes.
[0036] Example 3
[0037] Please see Figure 6This utility model provides a medical tubing anti-leakage and anti-detachment connection device, which is basically the same as the structure of Embodiment 1. The difference is that the second base 41 is provided with multiple annular receiving grooves 411, and each annular receiving groove 411 is provided with a sealing element 44 of different sizes to achieve a better sealing effect and ensure that the connection and fixation of the two medical tubing are sealed. It can be understood that the sealing element 44 on the second base 41 that contacts and fits with the first through hole 33 is the main sealing element, which is the first connection and sealing point between the first through hole 33 and the second base 41, and is crucial.
[0038] This utility model medical pipeline anti-leakage and anti-detachment connection device has a simple structure and is easy for patients to operate.
[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0040] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A medical tubing leak-proof and detachment-proof connection device, characterized in that, The system includes a first pipe, a second pipe, a first connector, and a second connector. The first connector is mounted on the first pipe, and the second connector is mounted on the second pipe. The first connector includes a first base with a first groove extending axially along the first base. A first through hole extending axially through the first base is formed at the bottom of the first groove, and a retaining portion protrudes axially from the opening of the first groove towards the first base. The second connector includes a second base with a second through hole extending axially along the second base. The second base has at least two elastic retaining members on its periphery. Each elastic retaining member includes a connecting part, a retaining protrusion, and a pressing part. The retaining protrusion is located between the connecting part and the pressing part. The second base has an annular receiving groove, and a sealing member is installed in the annular receiving groove. When the first connecting member and the second connecting member are inserted, the end of the second base is inserted into the first through hole, the retaining protrusion abuts against the retaining part, thereby causing the sealing member to abut against the hole wall of the first through hole. The pressing part extends out of the first groove, and the first through hole and the second through hole are connected.
2. The medical pipeline leak-proof and detachment-proof connection device according to claim 1, characterized in that: The holding part includes at least two holding platforms, the width of which is proportional to the distance between the holding platform and the first through hole, and the holding protrusion abuts against the holding platform.
3. The medical pipeline leak-proof and detachment-proof connection device according to claim 1, characterized in that: The upper end side of the second base is provided with an inclined first guide portion, which is inserted into the first through hole.
4. The medical pipeline leak-proof and detachment-proof connection device according to claim 1, characterized in that: The lower end side of the second base is provided with an inclined second guide portion, which abuts against the wall of the second pipe.
5. A medical pipeline leak-proof and detachment-proof connection device according to claim 1, characterized in that: The second substrate is provided with a plurality of annular receiving grooves, and each of the annular receiving grooves is provided with the sealing element.
6. The medical pipeline leak-proof and detachment-proof connection device according to claim 5, characterized in that: The seals are of different sizes.
7. The medical pipeline leak-proof and detachment-proof connection device according to claim 1, characterized in that: The number of the elastic retaining elements is two, three, or four.