Anti-disengagement urethral support
Patent Information
- Application Number
- CN202521390582.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-07-03
AI Technical Summary
[0007]本实用新型提供一种防脱式尿道支架,旨在解决背景技术中所提出的由于内部结构较多且复杂,可能积存尿液或细菌,清洁和维护难度大,易导致感染的问题
[0017] 1. Through the internal protective components, the smooth tube protects the inside of the stent body, which can effectively prevent urine from directly contacting the stent body, prevent urine contamination and accumulation, thereby reducing the difficulty of cleaning and maintenance and the risk of bacterial growth, and reducing the possibility of infection. At the same time, the opening of the sealing ring is designed to be arc-shaped, which, together with the structure of the smooth tube, can effectively reduce the impact of urine on the device, improve the diversion effect, and ensure the stability and safety of the device operation.
Smart Images

Figure CN224639925U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of urethral stent technology, specifically an anti-dislodgement urethral stent. Background Technology
[0002] A urethral stent is a medical device used to keep the urethra open. It is mainly used to treat diseases such as urethral stricture, difficulty urinating, or urinary tract obstruction. It is inserted into the urethra to support and expand the narrowed or obstructed urethral tissue, preventing the urethra from contracting or closing again, thereby ensuring smooth urine flow and improving the patient's urinary function and quality of life.
[0003] Upon investigation, a Chinese utility model patent discloses a simple urethral stent designed to prevent detachment (publication number: CN215739691U), which includes a urethral stent body. The outer side of the urethral stent body has multiple horizontally arranged through holes, which are equally spaced. Multiple anti-slip rings are fixedly fitted on the outer side of the urethral stent body, and multiple support rings are fixedly connected to the inner wall of the urethral stent body.
[0004] Although the aforementioned patent has a reasonable structural design, good support and stability, and will not shift in the human body, the treatment effect can meet the preoperative expectations, it is easy to remove after the operation, has good use effect, and high work efficiency, due to its numerous and complex internal structures, it may accumulate urine or bacteria, making cleaning and maintenance difficult and prone to infection.
[0005] Therefore, this utility model provides an anti-dislodgement urethral stent to solve the above problems. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] This invention provides an anti-dislodgement urethral stent, which aims to solve the problems mentioned in the background art, such as the accumulation of urine or bacteria due to the numerous and complex internal structures, making cleaning and maintenance difficult and easily leading to infection.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, the present invention provides the following technical solution: it includes a support body, an inner protective component is fixedly connected inside the support body, and a fixing component is sleeved on the outer surface of the support body;
[0010] The inner protective assembly includes a smooth tube, the outer surface of which is fixedly connected to the inside of the support body. Sealing rings are fixedly connected to both the upper and lower sides of the smooth tube, and fitting rings are fixedly connected to the outer surface of the sealing rings.
[0011] As a preferred technical solution of this application, the smooth tube has a flow guide groove inside, and the number of the flow guide grooves is several.
[0012] As a preferred technical solution of this application, a plurality of the guide channels are arranged in a ring array, and the guide channels are arranged in a semi-circular vertical and smooth manner.
[0013] As a preferred technical solution of this application, the fixing component includes an outer protective tube, the inner surface of which is sleeved on the outer surface of the bracket body, and fastening airbags are fixedly connected to both the upper and lower sides of the outer protective tube.
[0014] As a preferred technical solution of this application, the inner side of the outer protective tube is fixedly connected to the outer surface of the smooth tube located on the periphery of the support body, and a cavity is left between the outer protective tube and the smooth tube.
[0015] As a preferred technical solution of this application, the support body is composed of multiple alloy staggered arrangement and equidistant distribution.
[0016] (III) Beneficial Effects
[0017] 1. Through the internal protective components, the smooth tube protects the inside of the stent body, which can effectively prevent urine from directly contacting the stent body, prevent urine contamination and accumulation, thereby reducing the difficulty of cleaning and maintenance and the risk of bacterial growth, and reducing the possibility of infection. At the same time, the opening of the sealing ring is designed to be arc-shaped, which, together with the structure of the smooth tube, can effectively reduce the impact of urine on the device, improve the diversion effect, and ensure the stability and safety of the device operation.
[0018] 2. Through the fixed components, the outer protective tube combined with the fastening airbag can firmly fix the position of the stent body, effectively preventing it from shifting or falling off during use, further ensuring the stability of the fixation. Moreover, the flexible design can reduce pressure and stimulation on surrounding tissues, thereby reducing patient discomfort. Attached Figure Description
[0019] Figure 1 A schematic diagram of a non-dislodgement urethral stent;
[0020] Figure 2 This is a schematic cross-sectional view of the smooth tube in an anti-dislodgement urethral stent.
[0021] Figure 3 This is a schematic diagram of the sealing ring in an anti-dislodgement urethral stent;
[0022] Figure 4 This is a schematic diagram of the fastening airbag in an anti-dislodgement urethral stent.
[0023] In the picture:
[0024] 1. Support body; 2. Smooth tube; 3. Sealing ring; 4. Fitting ring; 5. Guide groove; 6. Outer protective tube; 7. Fastening airbag. Detailed Implementation
[0025] 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.
[0026] This utility model provides an anti-detachment urethral stent, such as Figures 1-4 As shown, an anti-dislodgement urethral stent includes a stent body 1, an inner protective component is fixedly connected inside the stent body 1, and a fixing component is sleeved on the outer surface of the stent body 1.
[0027] The inner protective component includes a smooth tube 2, the outer surface of which is fixedly connected to the inside of the stent body 1. Sealing rings 3 are fixedly connected to both the upper and lower sides of the smooth tube 2, and fitting rings 4 are fixedly connected to the outer surface of the sealing rings 3. The smooth tube 2 protects the inside of the stent body 1, effectively preventing urine from directly contacting the stent body 1, preventing urine contamination and accumulation, thereby reducing the difficulty of cleaning and maintenance and the risk of bacterial growth, and reducing the possibility of infection. At the same time, the opening of the sealing ring 3 is designed to be arc-shaped, which, together with the structure of the smooth tube 2, can effectively reduce the impact of urine on the device, improve the drainage effect, and ensure the stability and safety of the device operation. In addition, the fitting ring 4 can improve the sealing between the sealing ring 3 and the urethra, preventing urine from entering the gap between the smooth tube 2 and the urethra.
[0028] The smooth tube 2 has a flow guide groove 5 inside. There are several flow guide grooves 5, which are arranged in a ring array. The flow guide grooves 5 are semi-circular and vertically smooth. The flow guide grooves 5 further improve the smoothness of urine flow and reduce the impact force of urine on the device.
[0029] The fixation component includes an outer sheath 6, which is fitted inside the outer surface of the stent body 1. Fastening airbags 7 are fixedly connected to both the upper and lower sides of the outer sheath 6. The inner side of the outer sheath 6 is fixedly connected to the outer surface of the smooth tube 2, located around the periphery of the stent body 1. A cavity exists between the outer sheath 6 and the smooth tube 2. By inflating the fastening airbags 7 and the outer sheath 6, the position of the stent body 1 can be firmly fixed, effectively preventing displacement or detachment during use, further ensuring the stability of the fixation. Furthermore, its flexible design reduces pressure and irritation to surrounding tissues, thereby reducing patient discomfort.
[0030] The stent body 1 consists of multiple alloy studs arranged in an interlaced pattern and distributed at equal intervals, which can support the urethra.
[0031] Operating steps: First, the device is inserted into the narrowed part of the patient's urethra, and the stent body 1 expands the narrowed part. Next, by inflating the fastening balloon 7 and the outer protective tube 6, the position of the stent body 1 can be stabilized and fixed, which can reduce the pressure and irritation on the surrounding tissues. Second, the opening of the sealing ring 3 is designed to be arc-shaped, which, together with the structure of the smooth tube 2, can effectively reduce the impact force of urine on the device. Furthermore, the guide groove 5 can further improve the smoothness of urine flow. Finally, the smooth tube 2 protects the inside of the stent body 1, which can effectively prevent urine from directly contacting the stent body 1 and prevent urine contamination and accumulation.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A urethral stent designed to prevent detachment, comprising a stent body, characterized in that: An inner protective assembly is fixedly connected inside the bracket body, and a fixing assembly is sleeved on the outer surface of the bracket body; The inner protective assembly includes a smooth tube, the outer surface of which is fixedly connected to the inside of the support body. Sealing rings are fixedly connected to both the upper and lower sides of the smooth tube, and fitting rings are fixedly connected to the outer surface of the sealing rings.
2. The anti-dislodgement urethral stent according to claim 1, characterized in that: The smooth tube has a flow guide groove inside, and the number of flow guide grooves is several.
3. The anti-dislodgement urethral stent according to claim 2, characterized in that: Several of the flow guide channels are arranged in a ring array, and the flow guide channels are arranged in a semi-circular vertical and smooth manner.
4. The anti-dislodgement urethral stent according to claim 1, characterized in that: The fixing component includes an outer protective tube, the inside of which is sleeved on the outer surface of the bracket body, and fastening airbags are fixedly connected to both the upper and lower sides of the outer protective tube.
5. The anti-dislodgement urethral stent according to claim 4, characterized in that: The inner side of the outer protective tube is fixedly connected to the outer surface of the smooth tube, which is located around the support body, and a cavity is left between the outer protective tube and the smooth tube.
6. The anti-dislodgement urethral stent according to claim 1, characterized in that: The support body consists of multiple alloy staggered joints that are evenly distributed.
Citation Information
Patent Citations
Anti-falling simple urethral stent
CN215739691U