Anal fistula thread hanging assembly

Abstract

The utility model discloses an anal fistula seton assembly which comprises a seton (1). The hanging line (1) comprises a main body (12) and a limiting part (11) which is connected with the main body (12) and protrudes outwards; the locking piece (2) is detachably connected with the hanging line (1), the locking piece (2) is provided with two limiting holes (21) which are distributed at intervals, and the two limiting holes (21) are used for allowing the corresponding ends of the hanging line (1) to penetrate through respectively and matched with the corresponding limiting parts (11); the locking piece (2) has an unlocking state of being separated from the hanging line (1) and a locking state of locking the two ends of the hanging line (1) and limiting the two ends of the hanging line (1) by the limiting part (11) under the action of external force; and in a locking state, the locking piece (2) is restrained between two adjacent limiting parts (11) in the length direction of the main body (12) or the locking piece (2) is clamped with the limiting parts (11). The locking piece can firmly lock the hanging line, and the hanging line is not prone to disengagement.

Description

Technical Field

[0001] This utility model relates to the field of anal fistula treatment device technology, specifically to an anal fistula seton assembly. Background Technology

[0002] Anal fistula is a common anorectal disease, mainly caused by infectious abscesses in the rectum and perianal area. Its main characteristic is the formation of a chronic infection pathway, which includes an internal opening, a fistula tract, and an external opening. A common treatment for anal fistula is seton placement. This method uses a thread to create a slow, gradual incision in the tissue through the internal and external openings, allowing drainage of pus and promoting healing.

[0003] Currently, clinicians mainly use rubber gloves to bind the wrist with rubber bands, or use traditional Chinese medicine-made medicated threads to hang the thread, lacking convenient thread hanging structures.

[0004] Upon investigation, Chinese utility model patent CN220175159U discloses "A disposable, non-invasive, replaceable anal fistula seton treatment device". The anal fistula seton treatment device includes an elastic strip and a connecting plug. The elastic strip is a hollow tubular structure, and a connecting plug is provided at one end of the elastic strip. The connecting plug is inserted into the other end of the elastic strip.

[0005] However, the above-mentioned patent has the following problems: when using elastic strips and tube insertion, because the elastic strips are somewhat soft, it is not convenient for doctors to apply force when using them, resulting in the elastic strips and tube insertion not being stable enough and possibly coming loose later. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an anal fistula hanging thread assembly that is securely locked and not easily detached, in light of the current state of the technology.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: an anal fistula seton assembly, including a seton;

[0008] Its features are:

[0009] The hanging line includes a main body and a limiting part that is connected to the main body and protrudes outward. There are at least two limiting parts that are spaced apart along the length direction of the main body.

[0010] It also includes a locking component that is detachably connected to the hanging wire. The locking component has two spaced-apart limiting holes, which are used for the corresponding ends of the hanging wire to pass through and cooperate with the corresponding limiting parts.

[0011] The locking component can be in an unlocked state, which is separated from the hanging wire, and a locked state, which locks both ends of the hanging wire and limits the position of the limiting part, when subjected to external force.

[0012] In the locked state, the locking member is constrained between two adjacent limiting parts along the length of the main body, or the locking member is engaged with the limiting part.

[0013] Preferably, at least one of the limiting portion and the wall of the limiting hole is elastic.

[0014] Preferably, the limiting hole includes a large hole section and a small hole section that are interconnected along the length of the hanging line; the two limiting holes in the locking member are distributed on the left and right at intervals, and the large hole section is on top and the small hole section is on the bottom;

[0015] Each limiting part includes a large-diameter section and a small-diameter section that are interconnected along the length of the hanging line;

[0016] The two ends of the main body along its length direction are respectively referred to as the first end and the second end; all limiting parts are divided into two groups along the length direction of the main body. In the first group, the smaller diameter segments of all limiting parts are closer to the first end of the hanging line than their larger diameter segments. In the second group, the smaller diameter segments of all limiting parts are closer to the second end of the hanging line than their larger diameter segments.

[0017] When neither the limiting part nor the locking part is under force, the small diameter section of the limiting part is smaller than the large diameter section of the limiting hole and can be inserted into the limiting hole, while the large diameter section of the limiting part is larger than the small diameter section of the limiting hole and can prevent the locking part from slipping out.

[0018] In the locked state, the wall of the limiting hole on the left side of the locking member is constrained between two adjacent limiting parts in the first group, and the wall of the limiting hole on the right side is constrained between two adjacent limiting parts in the second group.

[0019] This makes it easier for the locking element to move in the direction of tightening the hanging line, and it is less likely to fall off the hanging line in the opposite direction.

[0020] For safety and hygiene, the hanging wire is made entirely of elastic silicone, and / or the locking mechanism is made entirely of elastic silicone.

[0021] For ease of manufacturing, the lengths between two adjacent limiting parts are equal along the length of the main body.

[0022] Preferably, there are at least eight limiting parts.

[0023] Different limiting parts are set up, and the position of the locking part can be flexibly adjusted according to the patient's fistula position and recovery after suture placement. For example, after the patient's initial suture placement, it can be tightened again around the 5th, 10th and 15th day after the operation. At least 8 limiting parts are set up, that is, at least four sets of limiting parts are set up to meet the locking requirements of four different limiting part positions.

[0024] For ease of manufacturing, the two limiting holes of the locking member are the same size, and all limiting parts are the same size.

[0025] Preferably, the two ends of the main body along its length are respectively referred to as the first end and the second end, wherein the distance from the first end to the nearest limiting part along the length of the main body is denoted as L1, and the distance from the second end to the nearest limiting part along the length of the main body is denoted as L2, where L1 is less than L2. The longer section containing L2 facilitates the doctor in attaching this end to the fistula probe.

[0026] Preferably, the outer diameter of the main body at both ends along its length gradually decreases from the fixed end to the free end; this facilitates the insertion or exit of the hanging thread into or out of the patient's fistula.

[0027] Or / and, the limiting part extends circumferentially along the main body, so that the limiting part has a large circumferential area and a large frictional force with the locking member, which facilitates the locking of the two.

[0028] In order to drain the pus in the fistula, the main body has an inwardly recessed drainage groove that extends along the length of the main body and passes through the limiting portion.

[0029] Compared with the prior art, the advantages of this utility model are: by setting a limiting part and a locking part, it is easy for the doctor to pull the locking part to the required position when operating. In addition, in the locked state, the locking part is constrained between two adjacent limiting parts along the length of the main body or the locking part is engaged with the limiting part. In this way, the locking part can firmly lock the hanging wire and the hanging wire is not easy to come off.

[0030] In the improved design, the limiting hole includes a large hole section and a small hole section, and the limiting part includes a large diameter section and a small diameter section. This makes it easier for the locking part to move in the direction of tightening the hanging line, and it is not easy for it to fall off the hanging line in the opposite direction. The structure is reasonable and easy to manufacture. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0032] Figure 2 This is a schematic diagram from another angle of an embodiment of the present utility model;

[0033] Figure 3 This is a schematic diagram from another angle of an embodiment of the present utility model;

[0034] Figure 4 This is an exploded view of an embodiment of the present utility model;

[0035] Figure 5 This is a cross-sectional view of an embodiment of the present utility model;

[0036] Figure 6 for Figure 5 The exploded diagram. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0038] See Figures 1-6 This is a preferred embodiment of the present invention. The anal fistula seton assembly includes a seton 1 and a locking member 2 that is detachably connected to the seton 1.

[0039] The hanging cord 1 is made entirely of food-grade elastic silicone, ensuring safety and hygiene. The hanging cord 1 includes a main body 12 and a protruding limiting part 11 connected to the main body 12. (See also...) Figure 1 , Figure 5 The two ends of the main body 12 along its length direction are respectively designated as the first end 1a and the second end 1b. The length direction of the main body 12 is the axial direction of the main body 12. The distance from the first end 1a to the nearest limiting part 11 along the length direction of the main body 12 is designated as L1, and the distance from the second end 1b to the nearest limiting part 11 along the length direction of the main body 12 is designated as L2, where L1 is less than L2. Furthermore, the outer diameter of both ends of the main body 12 along its length direction gradually decreases from the fixed end to the free end. The main body 12 also has an inwardly recessed drainage groove 121, which extends along the length direction of the main body 12 and passes through the limiting part 11. In this embodiment, there are two drainage grooves 121, and the number of drainage grooves 121 can be adjusted as needed, with one or more grooves possible. There are at least two limiting parts 11, spaced apart along the length direction of the main body 12. Preferably, there are at least eight limiting parts 11. In this embodiment, there are a total of 14 limiting parts 11, and the number of limiting parts 11 can be adjusted as needed, with eight or more possible. Along the length of the main body 12, the length between two adjacent limiting portions 11 is equal, for example, 1 cm. The limiting portion 11 extends circumferentially along the main body 12, from... Figure 5 See, the cross-section of the limiting part 11 is roughly an inverted trapezoid.

[0040] Locking component 2 is made entirely of food-grade elastic silicone, ensuring safety and hygiene. (See also...) Figure 4 , Figure 6 The locking member 2 has two spaced-apart limiting holes 21, which are respectively used for the corresponding ends of the hanging wire 1 to pass through and cooperate with the corresponding limiting parts 11. The locking member 2 has an unlocked state that is separated from the hanging wire 1 and a locked state that locks both ends of the hanging wire 1 and is limited by the limiting parts 11 when subjected to external force. In the locked state, the locking member 2 is constrained between two adjacent limiting parts 11 along the length direction of the main body 12, or the locking member 2 can be engaged with the limiting parts 11.

[0041] The specific mating structure between locking element 2 and hanging wire 1 is as follows.

[0042] At least one of the walls of the limiting part 11 and the limiting hole 21 is elastic; preferably, in this embodiment, both the hanging wire 1 and the locking member 2 are made of silicone and are elastic. See also Figure 6 The limiting hole 21 includes a large hole section 211 and a small hole section 212 that are interconnected along the length of the hanging line 1. The two limiting holes 21 in the locking member 2 are distributed on the left and right sides at intervals, with the large hole section 211 on top and the small hole section 212 on the bottom.

[0043] See Figure 6 Each limiting part 11 includes a large-diameter section 111 and a small-diameter section 112 that are connected to each other along the length direction of the hanging line 1; the two ends of the main body 12 along its length direction are respectively referred to as the first end 1a and the second end 1b; all limiting parts 11 are divided into two groups along the length direction of the main body 12. In the first group, the small-diameter section 112 of all limiting parts 11 is closer to the first end 1a of the hanging line 1 than its own large-diameter section 111. In the second group, the small-diameter section 112 of all limiting parts 11 is closer to the second end 1b of the hanging line 1 than its own large-diameter section 111.

[0044] When neither the limiting part 11 nor the locking member 2 is under force, the small diameter section 112 of the limiting part 11 is smaller than the large hole section 211 of the limiting hole 21 and can be inserted into the limiting hole 21. The large diameter section 111 of the limiting part 11 is larger than the small hole section 212 of the limiting hole 21 and can prevent the locking member 2 from slipping out.

[0045] In the locked state, the wall of the limiting hole 21 on the left side of the locking member 2 is constrained between two adjacent limiting parts 11 in the first group, and the wall of the limiting hole 21 on the right side is constrained between two adjacent limiting parts 11 in the second group.

[0046] The working principle and usage process are as follows.

[0047] After rinsing the fistula, the doctor attaches the second end 1b of the seton 1 to the fistula probe (not shown in the figure), inserts the fistula probe into the fistula from the external opening, and then inserts the seton 2 into the fistula from the external opening. The second end 1b of the seton 2 is then passed out from the internal opening and finally out of the anus. Next, the large hole 211 of the locking member 2 is aligned with both ends of the seton 1, and the two ends of the seton 1 are passed through the corresponding limiting holes 21 of the locking member 2. Figure 5 As shown, the locking member 2 is then moved to a suitable adjacent limiting part 11 along the length of the main body 12 to prevent the hanging line 1 from being too loose and easily pulled, or to prevent the hanging line 1 from being too tight and strangling the patient. The two limiting parts 11 form a group and cooperate with the locking member 2. Limited by the limiting parts 11, the locking member 2 will not fall off the hanging line 1. The pus in the fistula flows out through the drainage groove 121 of the hanging line 1.

[0048] The seton is tightened on days 5, 10, and 15 post-surgery to ensure adequate drainage of pus. Tightening the seton involves gradually moving the locking element 2 in a direction that reduces the area enclosed by the seton and locking element 2, positioning the locking element 2 between two adjacent limiting parts 11. On day 20, if the fistula is healing well and the drainage of pus is satisfactory, the seton 1 can be cut and removed.

Claims

1. A seton assembly for anal fistula, comprising a seton (1); Its features are: The hanging line (1) includes a main body (12) and a limiting part (11) that is connected to the main body (12) and protrudes outward. There are at least two limiting parts (11) that are spaced apart along the length direction of the main body (12). It also includes a locking member (2) that is detachably connected to the hanging wire (1). The locking member (2) has two spaced limiting holes (21). The two limiting holes (21) are respectively used for the corresponding ends of the hanging wire (1) to pass through and cooperate with the corresponding limiting part (11). The locking member (2) has an unlocked state that is separated from the hanging wire (1) when subjected to external force, and a locked state that locks both ends of the hanging wire (1) and is limited by the limiting part (11); In the locked state, the locking member (2) is constrained between two adjacent limiting parts (11) along the length direction of the main body (12) or the locking member (2) is engaged with the limiting part (11).

2. The hanging wire assembly according to claim 1, characterized in that: At least one of the walls of the limiting part (11) and the limiting hole (21) is elastic.

3. The hanging wire assembly according to claim 2, characterized in that: The limiting hole (21) includes a large hole section (211) and a small hole section (212) that are interconnected along the length of the hanging line (1); the two limiting holes (21) in the locking member (2) are distributed on the left and right at intervals, and the large hole section (211) is on top and the small hole section (212) is on the bottom; Each limiting part (11) includes a large-diameter section (111) and a small-diameter section (112) that are connected to each other along the length direction of the hanging line (1); The two ends of the main body (12) along its length direction are respectively referred to as the first end (1a) and the second end (1b); all the limiting parts (11) are divided into two groups along the length direction of the main body (12). In the first group, the small diameter segment (112) of all the limiting parts (11) is closer to the first end (1a) of the hanging line (1) than its own large diameter segment (111). In the second group, the small diameter segment (112) of all the limiting parts (11) is closer to the second end (1b) of the hanging line (1) than its own large diameter segment (111). When neither the limiting part (11) nor the locking member (2) is under force, the small diameter section (112) of the limiting part (11) is smaller than the large hole section (211) of the limiting hole (21) and can be inserted into the limiting hole (21), while the large diameter section (111) of the limiting part (11) is larger than the small hole section (212) of the limiting hole (21) and can prevent the locking member (2) from slipping out. In the locked state, the wall of the limiting hole (21) on the left side of the locking member (2) is constrained between two adjacent limiting parts (11) in the first group, and the wall of the limiting hole (21) on the right side is constrained between two adjacent limiting parts (11) in the second group.

4. The hanging wire assembly according to claim 1, characterized in that: The hanging wire (1) is made entirely of elastic silicone, and / or the locking element (2) is made entirely of elastic silicone.

5. The hanging wire assembly according to claim 1, characterized in that: Along the length direction of the main body (12), the lengths between two adjacent limiting parts (11) are equal.

6. The hanging wire assembly according to claim 1, characterized in that: There are at least eight limiting parts (11).

7. The hanging wire assembly according to claim 1, characterized in that: The two limiting holes (21) of the locking member (2) are the same size, and all the limiting parts (11) are the same size.

8. The hanging wire assembly according to claim 1, characterized in that: The two ends of the main body (12) along its length direction are respectively called the first end (1a) and the second end (1b). The distance of the first end (1a) from the limiting part (11) closest to the main body (12) along its length direction is called L1, and the distance of the second end (1b) from the limiting part (11) closest to the main body (12) along its length direction is called L2. L1 is less than L2.

9. The hanging wire assembly according to claim 1, characterized in that: The outer diameter of the two ends of the main body (12) along its length direction gradually decreases from the fixed end to the free end; Or / and, the limiting portion (11) extends circumferentially along the body (12).

10. The hanging wire assembly according to claim 1, characterized in that: The main body (12) has an inwardly recessed drainage groove (121) that extends along the length of the main body (12) and passes through the limiting portion (11).

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