Kink-proof combined joint
By designing anti-kink combination joints, using the clasping mechanism of annular bumps and grooves, combined with blocking parts, wing-shaped handles and other structures, the problem of dialyzer joints and pipelines during blood purification is solved, ensuring blood flow Smooth, improving dialysis effect.
Patent Information
- Application Number
- CN202322928794.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-30
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-10-30
AI Technical Summary
During the blood purification process, the dialyzer joints and pipelines are prone to kink, causing the blood flow rate to slow down or stop, affecting the dialysis effect.
An anti-kink combination joint is designed, including a jacket and an inner sleeve. The inner wall of the jacket is provided with an annular bump. The inner sleeve is rotatably inserted into the jacket. The outer wall of the inner sleeve is provided with an annular groove and a bump to buckle to avoid rotation. The resulting twisting ensures stability of the connection through the barrier, wing handle, standard thread, transition, limit and guide.
It effectively avoids kinks between the dialyzer joints and pipelines, ensures smooth blood flow, and improves the dialysis effect.
Smart Images
Figure CN222150626U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment joints, in particular to an anti-kink combined joint. Background Art
[0002] The process of drawing the patient's blood out of the body and removing some of the pathogenic substances from it through a blood purification device to purify the blood and treat the disease is called blood purification. Blood purification treatment requires the use of filters, blood purification equipment, pipeline consumables, etc., and the pipeline consumables generally consist of flushing connectors, air capturers, pump tubes, main pipes, branch pipes, locking connectors, sampling ports, dialyzer connectors, etc.
[0003] Currently, the dialyzer connectors in the blood purification pipelines on the market are generally single bodies that are directly injection molded. When the dialyzer connectors are rotated and connected to filters such as dialyzers, they are prone to kinking with the pipelines connected to the dialyzer connectors, restricting the flow of blood in the pipelines, slowing down or completely stopping the blood flow, resulting in insufficient blood flow during the dialysis process and affecting the dialysis effect. Utility Model Content
[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an anti-kink combined connector, which can prevent the dialyzer connector and the pipeline from being kinked, thereby ensuring the dialysis effect of the blood.
[0005] According to the embodiment of the utility model, the anti-kink combined joint includes an outer sleeve, an inner wall of which is provided with an annular protrusion, and the outer sleeve is used to connect the filter; the inner sleeve is rotatably inserted into the outer sleeve, the inner sleeve is coaxially arranged with the outer sleeve, the inner sleeve is used to connect the pipeline, and the outer wall of the inner sleeve is provided with an annular groove that can be engaged with the annular protrusion. The annular protrusion and the annular groove are engaged, so that the inner sleeve is movably arranged on the outer sleeve.
[0006] The anti-kink combined connector according to the embodiment of the utility model has at least the following beneficial effects: one end of the outer sleeve is connected to the filter, and the other end of the outer sleeve is connected to the pipeline through the inner sleeve, and the inner sleeve can rotate relative to the outer sleeve, so the pipeline connected to the inner sleeve will not be twisted due to rotation during the connection process, thereby avoiding restriction of blood flow in the pipeline and improving the dialysis effect.
[0007] According to some embodiments of the utility model, a blocking portion is provided at the end of the inner sleeve away from the end connected to the pipeline, and the blocking portion abuts against the port of the end of the outer sleeve connected to the filter, and the blocking portion is used to prevent the inner sleeve from falling off the outer sleeve.
[0008] According to some embodiments of the present invention, a wing-shaped handle is provided on the outer casing, and the wing-shaped handle extends away from the side where the outer casing is connected to the filter.
[0009] According to some embodiments of the utility model, a standard thread for connecting the filter is provided on the outer wall of the end of the outer casing connected to the filter.
[0010] According to some embodiments of the utility model, a transition portion is provided on the annular protrusion, and the cross-sectional area of the transition portion gradually decreases toward the connection end of the outer sleeve and the filter, and the transition portion is used to achieve a smooth transition between the inner sleeve and the outer sleeve.
[0011] According to some embodiments of the utility model, the inner sleeve is provided with a first cavity capable of accommodating a conical column of the filter, and the cavity wall of the first cavity is a Luer taper structure.
[0012] According to some embodiments of the utility model, the inner sleeve is provided with a second cavity capable of accommodating the pipeline, and a first limiting portion is provided on the cavity wall of the second cavity, and the first limiting portion is used to limit the connection position of the pipeline.
[0013] According to some embodiments of the utility model, a guiding portion is provided at one end of the inner sleeve connected to the pipeline, and the cross-sectional area of the guiding portion gradually decreases as it approaches the end of the inner sleeve connected to the pipeline. The guiding portion is used to guide the pipeline into the inner sleeve.
[0014] According to some embodiments of the utility model, a second limiting portion is provided on the wing-shaped handle, and the second limiting portion is located at the end of the wing-shaped handle close to the connection between the outer sleeve and the filter, and the second limiting portion is used to limit the position where the filter is connected to the outer sleeve.
[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0017] Figure 1 This is a schematic structural diagram of an anti-kink combined joint according to an embodiment of the utility model;
[0018] Figure 2 for Figure 1 Structural diagram of the middle and inner sleeve;
[0019] Figure 3 for Figure 1 sectional view of
[0020] Figure 4 for Figure 1 Sectional view of the middle jacket;
[0021] Figure 5 for Figure 2 Cross-sectional view of .
[0022] Reference numerals:
[0023] The outer sleeve 100, the annular protrusion 110, the transition portion 111, the wing-shaped handle 120, the second limiting portion 121, and the standard thread 130;
[0024] Inner sleeve 200 , annular groove 210 , blocking portion 220 , first cavity 230 , second cavity 240 , first limiting portion 241 , guiding portion 250 . DETAILED DESCRIPTION
[0025] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0027] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a first or second description, it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0029] refer to Figures 1 to 5 The invention describes an anti-kink combined joint according to an embodiment of the invention.
[0030] like Figures 1 to 5As shown, the anti-kink combined joint includes an outer sleeve 100, an annular protrusion 110 is arranged on the inner wall of the outer sleeve 100, and the outer sleeve 100 is used to connect the filter; an inner sleeve 200, the inner sleeve 200 is rotatably inserted into the outer sleeve 100, the inner sleeve 200 is coaxially arranged with the outer sleeve 100, and the inner sleeve 200 is used to connect the pipeline, and an annular groove 210 that can be engaged with the annular protrusion 110 is arranged on the outer wall of the inner sleeve 200, and the annular protrusion 110 and the annular groove 210 are engaged, so that the inner sleeve 200 is movably arranged on the outer sleeve 100.
[0031] like Figure 1 As shown, the anti-kink combined structure includes an outer sleeve 100 and an inner sleeve 200 inserted in the outer sleeve 100, the inner sleeve 200 can rotate relative to the outer sleeve 100, the outer sleeve 100 is used to connect the filter, and the inner sleeve 200 is used to connect the pipeline. It should be noted that in this specific embodiment, the filter includes a first interface that can be sleeved on the outer wall of the outer sleeve 100, and a second interface that can be inserted on the inner sleeve 200, and the first interface is coaxially arranged with the second interface, and a thread is arranged on the inner wall of the first interface close to the second interface. Specifically, an annular protrusion 110 is arranged on the inner wall of the outer sleeve 100, and an annular groove 210 that can be engaged with the annular protrusion 110 is arranged on the outer wall of the inner sleeve 200, and the annular protrusion 110 and the annular groove 210 are engaged with each other, so that the inner sleeve 200 can be movably inserted in the outer sleeve 100. Therefore, one end of the outer sleeve 100 is connected to the filter, and the other end of the outer sleeve 100 is connected to the pipeline through the inner sleeve 200, and the inner sleeve 200 can rotate relative to the outer sleeve 100. Then, the pipeline connected to the inner sleeve 200 will not be twisted due to the rotation during the connection process, thereby avoiding restricting the flow of blood in the pipeline and improving the dialysis effect.
[0032] In some specific embodiments of the present invention, a blocking portion 220 is provided at the end of the inner sleeve 200 away from the connection with the pipeline, and the blocking portion 220 abuts against the port of the outer sleeve 100 connected to the filter. The blocking portion 220 is used to prevent the inner sleeve 200 from falling off the outer sleeve 100.
[0033] like Figure 2 , Figure 3 and Figure 5 As shown, a blocking portion 220 is provided at the upper end of the inner sleeve 200. When the inner sleeve 200 passes through the outer sleeve 100 from top to bottom so that the annular protrusion 110 is engaged with the annular groove 210, the blocking portion 220 abuts against the upper end port of the outer sleeve 100, thereby preventing the inner sleeve 200 from continuing to move downward and preventing the inner sleeve 200 from falling off the outer sleeve 100. Specifically, the blocking portion 220 is annular. Of course, the blocking portion 220 can also be a plurality of protrusions, convex strips, convex ridges and other structures that can abut against the upper end port of the outer sleeve 100.
[0034] In some specific embodiments of the present invention, a wing-shaped handle 120 is provided on the outer cover 100, and the wing-shaped handle 120 extends away from the side where the outer cover 100 is connected to the filter. Figure 4 As shown, the jacket 100 is provided with a wing-shaped handle 120, which extends downward, and the user can rotatably connect the jacket 100 with other devices through the wing-shaped handle 120. Of course, the handle can also be other structures that can facilitate the user to twist.
[0035] In some specific embodiments of the present invention, a standard thread 130 for connecting the filter is provided on the outer wall of the end of the outer sleeve 100 connected to the filter. Figure 1 As shown, the upper end of the outer sleeve 100 is provided with a standard thread 130 for cooperating with the thread of the inner wall of the first interface on the filter. When the outer sleeve 100 is rotated to make the upper end of the outer sleeve 100 cooperate with the filter, since the inner sleeve 200 can rotate relative to the outer sleeve 100, it will not cause the pipeline connected to the inner sleeve 200 to be kinked.
[0036] In some specific embodiments of the present invention, a transition portion 111 is provided on the annular protrusion 110, and the cross-sectional area of the transition portion 111 gradually decreases toward the end where the outer sleeve 100 is connected to the filter, and the transition portion 111 is used to achieve a smooth transition between the inner sleeve 200 and the outer sleeve 100. Figure 4 As shown, a transition portion 111 is provided on the annular protrusion 110, and the cross-sectional area of the transition portion 111 gradually decreases from bottom to top. Therefore, when the inner sleeve 200 passes through the outer sleeve 100 from top to bottom, the transition portion 111 can gradually deform the lower end of the inner sleeve 200 until the annular protrusion 110 is buckled into the annular convex groove, so that the inner sleeve 200 and the outer sleeve 100 can be smoothly buckled together during the assembly process.
[0037] In some specific embodiments of the present invention, the inner sleeve 200 is provided with a first cavity 230 capable of accommodating a conical column of the filter, and the cavity wall of the first cavity 230 is a Luer taper structure.
[0038] In some specific embodiments of the present invention, the inner sleeve 200 is provided with a second cavity 240 for accommodating the pipeline, and a first limiting portion 241 is provided on the cavity wall of the second cavity 240, and the first limiting portion 241 is used to limit the connection position of the pipeline.
[0039] like Figure 5As shown, the inner sleeve 200 is provided with a first cavity 230 and a second cavity 240, the first cavity 230 is located at the upper end of the second cavity 240, and the inner wall of the first cavity 230 is a Luer taper structure, which can be matched with the second interface which is also a Luer taper structure, thereby ensuring the sealing between the second interface and the cavity wall of the first cavity 230. The second cavity 240 is provided with a first limiting portion 241, and the first limiting portion 241 is located between the first cavity 230 and the second cavity 240. When the inner sleeve 200 is connected to the pipeline, the front end of the pipeline abuts against the first limiting portion 241 to limit the position of the pipeline, so that the connection end of the pipeline can be located at its set position, thereby ensuring the sealing between the pipeline and the inner sleeve 200.
[0040] In some specific embodiments of the present invention, a guiding portion 250 is provided at one end of the inner sleeve 200 connected to the pipeline, and the cross-sectional area of the guiding portion 250 gradually decreases as it approaches the end of the inner sleeve 200 connected to the pipeline. The guiding portion 250 is used to guide the pipeline into the inner sleeve 200. Figure 5 As shown, a guiding portion 250 is provided at the lower end port of the inner sleeve 200 , and the cross-sectional area of the guiding portion 250 gradually decreases from top to bottom to facilitate the guiding pipeline to penetrate into the inner sleeve 200 .
[0041] In some specific embodiments of the present invention, a second limiting portion 121 is provided on the wing-shaped handle 120. The second limiting portion 121 is located at the end of the wing-shaped handle 120 close to the connection between the outer sleeve 100 and the filter. The second limiting portion 121 is used to limit the position where the filter is connected to the outer sleeve 100. Figure 1 , Figure 3 and Figure 4 As shown, a second limiting portion 121 is provided at the upper end of the wing-shaped handle 120, and the second limiting portion 121 is arranged horizontally. When the user rotates the outer jacket 100 to connect the filter, the first interface of the filter gradually approaches the second limiting portion 121 until it abuts against the second limiting portion 121, thereby completing the connection between the outer jacket 100 and the filter.
[0042] In some specific embodiments of the present invention, the upper end of the outer sleeve 100 is inserted between the first interface and the second interface of the filter, and the wing-shaped handle 120 of the outer sleeve 100 is rotated by hand to screw the upper end of the outer sleeve 100 into the filter to complete the connection. During the connection process, since the inner sleeve 200 can rotate independently relative to the outer sleeve 100, the inner sleeve 200 and the pipeline bonded thereto will not be tangled due to rotation during the connection process.
[0043] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A kink-proof combined joint, characterized in that: include: An outer sleeve (100), wherein an annular protrusion (110) is provided on the inner wall of the outer sleeve (100), and the outer sleeve (100) is used for connecting a filter; An inner sleeve (200) is rotatably inserted into the outer sleeve (100). The inner sleeve (200) is coaxially arranged with the outer sleeve (100). The inner sleeve (200) is used to connect a pipeline. An annular groove (210) that can be engaged with the annular protrusion (110) is arranged on the outer wall of the inner sleeve (200). The annular protrusion (110) and the annular groove (210) are engaged so that the inner sleeve (200) is movably arranged on the outer sleeve (100).
2. The anti-kink combined joint according to claim 1, characterized in that: The inner sleeve (200) is provided with a blocking portion (220) at an end away from the end connected to the pipeline, and the blocking portion (220) abuts against a port at an end of the outer sleeve (100) connected to the filter, and the blocking portion (220) is used to prevent the inner sleeve (200) from falling off the outer sleeve (100).
3. The anti-kink modular joint according to claim 1, characterized in that: The outer sleeve (100) is provided with a wing-shaped handle (120), and the wing-shaped handle (120) extends away from the side where the outer sleeve (100) is connected to the filter.
4. The anti-kink modular joint according to claim 1, characterized in that: A standard thread (130) for connecting to the filter is provided on the outer wall of the end of the outer casing (100) connected to the filter.
5. The anti-kink modular joint according to claim 1, characterized in that: The annular protrusion (110) is provided with a transition portion (111), the cross-sectional area of the transition portion (111) gradually decreases towards the end where the outer sleeve (100) is connected to the filter, and the transition portion (111) is used to achieve a smooth transition between the inner sleeve (200) and the outer sleeve (100).
6. The anti-kink modular joint according to claim 1, characterized in that: The inner sleeve (200) is provided with a first cavity (230) capable of accommodating a conical column of a filter, and the cavity wall of the first cavity (230) is a Luer taper structure.
7. The anti-kink modular joint according to claim 1, characterized in that: The inner sleeve (200) is provided with a second cavity (240) capable of accommodating a pipeline, and a first limiting portion (241) is provided on the cavity wall of the second cavity (240), and the first limiting portion (241) is used to limit the connection position of the pipeline.
8. The anti-kink modular joint according to claim 1, characterized in that: A guiding portion (250) is provided at one end of the inner sleeve (200) connected to the pipeline, and the cross-sectional area of the guiding portion (250) gradually decreases as it approaches the end of the inner sleeve (200) connected to the pipeline. The guiding portion (250) is used to guide the pipeline into the inner sleeve (200).
9. The anti-kink modular joint according to claim 3, characterized in that: The wing-shaped handle (120) is provided with a second limiting portion (121), and the second limiting portion (121) is located at the end of the wing-shaped handle (120) close to the connection between the outer sleeve (100) and the filter, and the second limiting portion (121) is used to limit the position where the filter is connected to the outer sleeve (100).