Displacement-preventing urethral stent

Abstract

The utility model discloses an anti-displacement urethral stent, and relates to the technical field of urethral stents, the anti-displacement urethral stent comprises a stent main body and a through hole, the middle part of the stent main body is provided with the through hole, and two sides of the stent main body are provided with auxiliary mechanisms. When the anti-displacement urethral stent is used, the input end and the output end are fixed to the two sides of the stent body through the auxiliary mechanism, and the input end and the output end are both conical, so that the front end of the stent is rounder and smoother through the input end, friction and damage to urethral tissue are reduced, and the anti-displacement urethral stent is more convenient to use. The urethral stent can more easily pass through a narrow or bent part of the urethra, so that the pain and discomfort of a patient can be relieved; and the output end is used for assisting the urine to be smoothly discharged, so that the urine is prevented from being accumulated between the stent and the urethral wall, and the effects of conveniently inserting the stent to reduce stimulation and assisting urination are achieved when the urethral stent is used.

Description

Technical Field

[0001] This utility model relates to the field of urethral stent technology, specifically to a urethral stent designed to prevent displacement. Background Technology

[0002] The urethra is the passageway from the bladder to the outside of the body, primarily responsible for urination; a urethral stent is a medical device used to treat urethral stricture or obstruction. It is typically made of stainless steel, synthetic fiber silicone, or nickel-titanium alloy and can be placed at the site of urethral stricture using a cystoscope. This stent opens the narrowed or blocked area, expanding the previously narrowed and closed urethra and helping patients restore normal urination function.

[0003] According to patent announcement CN215739691U, a simple urethral stent designed to prevent dislodgement is described. This patent includes a urethral stent body with multiple horizontally arranged through holes on its outer side, spaced equally apart. Multiple anti-slip rings are fixedly fitted onto the outer side of the urethral stent body, and multiple support rings are fixedly connected to the inner wall of the urethral stent body. This utility model features a reasonable structural design, good support and stability, and will not shift within the human body. The treatment effect can meet preoperative expectations, it is easy to remove postoperatively, has good usage effects, and high work efficiency.

[0004] However, the urethral stent in the aforementioned patent has completely round ends. The urethra itself is a relatively narrow tube with a certain curvature. If the ends of the stent are completely round, it may create some resistance when urine is discharged, especially in areas where the urethra is curved or narrow. This resistance may cause poor urine discharge. Furthermore, the round insertion end of the urethral stent is not conducive to the smooth insertion of the stent into the urethra. Its insertion will cause greater damage to the urethral tissue, thus affecting the use of the urethral stent. Utility Model Content

[0005] The purpose of this invention is to provide a urethral stent that prevents displacement, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a urethral stent for preventing displacement, comprising a stent body and a through hole. The through hole is provided in the middle of the stent body, and auxiliary mechanisms are provided on both sides of the stent body. The auxiliary mechanisms include a first fixing ring, a second fixing ring, an input end, a first locking block, a locking hole, a second locking block, a locking groove, an output end, a limiting component, a urination hole, and a guide rope. A first fixing ring is connected to one side of the outer wall of the stent body, and a second fixing ring is connected to one side of the outer wall of the stent body. An input end is connected to the outer wall of the first fixing ring, and an output end is connected to the outer wall of the second fixing ring. Both the input end and the output end are conical in shape.

[0007] Preferably, the inner wall of the input terminal is connected to a No. 1 snap-fit ​​block, and the bracket body has a snap-fit ​​hole on the side near the No. 1 fixing ring, into which the No. 1 snap-fit ​​block extends.

[0008] Preferably, the inner wall of the output end is connected to a second snap-fit ​​block, and the bracket body has a snap-fit ​​groove on the side near the second fixing ring, with the second snap-fit ​​block extending into it.

[0009] Preferably, the first snap-fit ​​block and the snap-fit ​​hole are snap-fit ​​connected, the second snap-fit ​​block and the snap-fit ​​groove are snap-fit ​​connected, and the first snap-fit ​​block and the second snap-fit ​​block are both arranged in a "+" shape.

[0010] Preferably, a limiting component is welded to one side of the outer wall of the output end, and a guide rope is connected to the other side of the outer wall of the output end, and a urination hole is opened in the middle of the outer wall of the output end.

[0011] Preferably, the urination holes are distributed at equal angles, the limiting member has an "L" shaped cross-section, the second fixing ring has a movable cavity inside which the limiting member extends, and the second fixing ring and the limiting member are rotatably connected.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this anti-displacement urethral stent, the input end and output end are fixed to both sides of the stent body through an auxiliary mechanism. Since both the input end and output end are conical, the front end of the stent is made more rounded and smooth through the input end, reducing friction and damage to the urethral tissue. This makes it easier for the urethral stent to pass through narrow or curved parts of the urethra, thereby reducing the patient's pain and discomfort. Furthermore, the output end assists in the smooth discharge of urine, thereby preventing urine from accumulating between the stent and the urethral wall. Thus, when using the urethral stent, it facilitates the insertion of the stent, reduces irritation, and assists in urination. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the input terminal of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the main body of the bracket and the first fixing ring of this utility model in a separated state;

[0017] Figure 5 This is a three-dimensional cross-sectional view of the input terminal of this utility model;

[0018] Figure 6This is a three-dimensional structural diagram of the output terminal of this utility model;

[0019] Figure 7 This is a three-dimensional structural diagram of the bracket body and the second fixing ring of this utility model in a separated state;

[0020] Figure 8 This is a three-dimensional cross-sectional view of the output end of this utility model.

[0021] In the diagram: 1. Support body; 2. Through hole; 3. Auxiliary mechanism; 301. First fixing ring; 302. Second fixing ring; 303. Input end; 304. First snap-fit ​​block; 305. Snap-fit ​​hole; 306. Second snap-fit ​​block; 307. Snap-fit ​​groove; 308. Output end; 309. Limiting component; 310. Urinating hole; 311. Outlet rope. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-8This utility model provides a technical solution: a urethral stent for preventing displacement, comprising a stent body 1 and a through hole 2. The through hole 2 is provided in the middle of the stent body 1, and auxiliary mechanisms 3 are provided on both sides of the stent body 1. The auxiliary mechanisms 3 include a first fixing ring 301, a second fixing ring 302, an input end 303, a first locking block 304, a locking hole 305, a second locking block 306, a locking groove 307, an output end 308, a limiting member 309, a urination hole 310, and a guide rope 311. One side of the outer wall of the stent body 1 is connected to... A first fixing ring 301 is connected, and a second fixing ring 302 is connected to one side of the outer wall of the bracket body 1. An input terminal 303 is connected to the outer wall of the first fixing ring 301, and an output terminal 308 is connected to the outer wall of the second fixing ring 302. Both the input terminal 303 and the output terminal 308 have a conical structure. A first locking block 304 is abutted to the inner wall of the input terminal 303. A locking hole 305 is opened on the side of the bracket body 1 near the first fixing ring 301, and the first locking block 304 extends into it. A second locking block 304 is abutted to the inner wall of the output terminal 308. The bracket body 1 has a locking groove 307 on the side near the second fixing ring 302, into which the second locking block 306 extends; the first locking block 304 and the locking hole 305 are engaged, and the second locking block 306 and the locking groove 307 are engaged, both of which are arranged in a cross shape; a limiting member 309 is welded to one side of the outer wall of the output end 308, and a guide rope 311 is connected to the other side of the outer wall of the output end 308. A urination hole 310 is provided in the middle of the outer wall of 308; the urination holes 310 are distributed at equal angles, the limiting member 309 has an "L" shaped cross-section, the second fixing ring 302 has a movable cavity inside, and the limiting member 309 extends into it, the second fixing ring 302 and the limiting member 309 are rotatably connected; the first fixing ring 301, the input end 303 and the first snap-fit ​​block 304 are an integral structure, the second fixing ring 302, the second snap-fit ​​block 306, the output end 308 and the limiting member 309 are an integral structure.

[0024] In specific implementation, during the use of this urethral stent, first move the first fixing ring 301 close to the stent body 1. Since the inner wall of the first fixing ring 301 is connected to the first snap-fit ​​block 304, push the first fixing ring 301 forcefully so that the first snap-fit ​​block 304 enters the snap-fit ​​hole 305. At this time, the first snap-fit ​​block 304 and the snap-fit ​​hole 305 are engaged, thereby limiting the first fixing ring 301 to prevent it from moving at will. Since the first fixing ring 301 is connected to the input end 303, the input end 303 is then fixed to one side of the stent body 1.

[0025] Since the second fixing ring 302 is connected to the second locking block 306, the second fixing ring 302 is then moved closer to the bracket body 1 until the second locking block 306 enters the locking groove 307. At this time, the second locking block 306 and the locking groove 307 are engaged, thus limiting the second fixing ring 302 to prevent it from rotating freely. Since the second fixing ring 302 is connected to the output terminal 308, the output terminal 308 is then fixed to the other side of the bracket body 1. Therefore, by simply pressing the first fixing ring 301 and the second fixing ring 302, the input terminal 303 and the output terminal can be connected. The fixation of 308 to the main body 1 of the stent facilitates the installation of auxiliary components by staff, saving time and effort. Furthermore, since both the input end 303 and the output end 308 are conical, the conical design of the input end 303 makes the front end of the stent more rounded and smooth, reducing friction and damage to urethral tissues, making it easier to pass through narrow or curved parts of the urethra, which can alleviate the patient's pain and discomfort, reduce the risk of complications, and the conical front end can better fit the urethral wall after insertion, increasing the contact area and friction between the stent and the urethra, thereby enhancing the stability of the stent.

[0026] Because the output end 308 is tapered, this design helps urine flow more smoothly along the stent, avoiding urine accumulation between the stent and the urethral wall, thus reducing the risk of infection. Furthermore, because a urination hole 310 is located in the middle of the outer wall of the output end 308, urine can be discharged more easily through this hole. Additionally, because a limiting member 309 is connected to one side of the output end 308, and the limiting member 309 is rotatably connected to the second fixing ring 302, the output end 308 can be gently rotated to allow the limiting member 309 to rotate along the second fixing ring 302, thereby breaking the internal tension of the urine and promoting its discharge. Moreover, because a guide rope 311 is connected to the outer wall of the output end 308, when the urethral stent needs to be removed, pulling the guide rope 311 can assist medical staff in removing the urethral stent. Therefore, when using the urethral stent, this design facilitates stent insertion, reduces irritation, and assists urination.

[0027] In summary, when using this anti-displacement urethral stent, the stent body 1 is first moved into the patient's urethra using medical tools to maintain a stable position and prevent slippage. This opens up narrowed or blocked areas in the urethra, restoring urethral patency. At this time, the through-hole 2 assists in the drainage of urine. This is existing technology and will not be elaborated upon here. The auxiliary mechanism 3 fixes the input end 303 and output end 308 to both sides of the stent body 1. Since both the input end 303 and output end 308 are conical, the input end 303 makes the front end of the stent more rounded and smooth, reducing friction and damage to urethral tissues. This makes it easier for the urethral stent to pass through narrowed or curved areas of the urethra, reducing patient pain and discomfort. Furthermore, the output end 308 assists in the smooth drainage of urine, thus preventing urine accumulation between the stent and the urethral wall. Content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A urethral stent for preventing displacement, comprising a stent body (1) and a through hole (2), wherein the through hole (2) is provided in the middle of the stent body (1), characterized in that: The main body of the support (1) is provided with auxiliary mechanisms (3) on both sides, and the auxiliary mechanisms (3) include a first fixing ring (301), a second fixing ring (302), an input end (303), a first snap-fit ​​block (304), a snap-fit ​​hole (305), a second snap-fit ​​block (306), a snap-fit ​​groove (307), an output end (308), a limiting member (309), a urination hole (310), and a guide rope (311). The first fixing ring (301) is connected to one side of the outer wall of the main body of the support (1), and the second fixing ring (302) is connected to one side of the outer wall of the main body of the support (1). The input end (303) is connected to the outer wall of the first fixing ring (301), and the output end (308) is connected to the outer wall of the second fixing ring (302). Both the input end (303) and the output end (308) are conical structures.

2. The urethral stent for preventing displacement according to claim 1, characterized in that: The inner wall of the input terminal (303) is connected to a No. 1 snap-fit ​​block (304), and the bracket body (1) has a snap-fit ​​hole (305) on the side near the No. 1 fixing ring (301), and the No. 1 snap-fit ​​block (304) extends into it.

3. The urethral stent for preventing displacement according to claim 2, characterized in that: The inner wall of the output end (308) is connected to a second snap-fit ​​block (306), and the bracket body (1) has a snap-fit ​​groove (307) on the side near the second fixing ring (302), and the second snap-fit ​​block (306) extends into it.

4. The anti-displacement urethral stent according to claim 3, characterized in that: The first snap-fit ​​block (304) is snap-fit ​​connected to the snap-fit ​​hole (305), and the second snap-fit ​​block (306) is snap-fit ​​connected to the snap-fit ​​groove (307). Both the first snap-fit ​​block (304) and the second snap-fit ​​block (306) are arranged in a cross shape.

5. A urethral stent for preventing displacement according to claim 4, characterized in that: A limiting member (309) is welded to one side of the outer wall of the output end (308), and a guide rope (311) is connected to the other side of the outer wall of the output end (308). A urination hole (310) is opened in the middle of the outer wall of the output end (308).

6. A urethral stent for preventing displacement according to claim 5, characterized in that: The urination holes (310) are distributed at equal angles. The limiting member (309) has an "L" shaped cross-section. The second fixing ring (302) has an internal movable cavity, and the limiting member (309) extends into it. The second fixing ring (302) and the limiting member (309) are rotatably connected.

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