Thread hanging combination for anal fistula treatment

Abstract

The invention provides a seton combination for anal fistula treatment. The seton combination mainly solves the technical problems that a traditional seton therapy is poor in drainage and detumescence effect in the early stage after healing, and directional cutting cannot be achieved in the later stage after healing. The wire hanging combination comprises a first wire hanging assembly and a second wire hanging assembly. Wherein the first wire hanging assembly comprises a first hollow pipe and a first plug connector; the first plug connector is of a bidirectional pagoda-shaped structure, and the outer diameter of the first plug connector is matched with the inner diameter of the first hollow pipe; the second wire hanging assembly comprises a cutting piece, a second inserting piece, two second hollow pipes with the same inner diameter and a locking piece; the second plug connector and the first plug connector are the same in structure and size; the two second hollow pipes are located at the two ends of the cutting piece correspondingly and connected with the cutting piece. The first hollow pipe and the second hollow pipe have the same inner diameter; two locking holes are formed in the locking piece and used for locking the ends, away from the cutting piece, of the two second hollow pipes correspondingly.

Description

Technical Field

[0001] The present invention relates to a wire hanging structure, and in particular to a wire hanging combination for the treatment of anal fistula. Background Art

[0002] An anal fistula is a pathological duct formed after a perianal abscess ruptures. Its clinical manifestation is a rupture opening around the anus, through which pus or purulent blood flows.

[0003] Currently, the treatment method for anal fistula mostly adopts the wire hanging therapy. The traditional wire hanging therapy uses a rubber band or a corrosive thread to slowly cut the anal fistula through mechanical compression. This therapy is generally applicable to anal fistulas within three to five centimeters from the anus, which are low or high simple anal fistulas with internal and external openings, or as an auxiliary treatment method for the incision and resection of complex anal fistulas. The greatest advantage of this therapy is that it will not cause fecal incontinence. The ligated muscle tissue will have impaired blood circulation, gradually necrosis and break. At the same time, this therapy can also drain the fistula and discharge the exudate in the fistula, with the advantages of simple operation, less bleeding, no need for dressing change, and the skin incision will not heal before the rubber band falls off.

[0004] Since the traditional wire hanging therapy mostly uses rubber bands, as Figure 1 shown, when in use, the rubber band enters from the internal opening of the fistula, passes through the fistula, and exits from the external opening of the fistula, and then the two ends of the rubber band are knotted and connected. In this way, in the early stage of healing, due to the existence of the knot, the displacement distance of the rubber band is limited, and the effect of drainage and detumescence cannot be fully exerted. And in the later stage of healing, due to the simplicity of its material and structure, it can only perform full cutting on the tissue within the coil, and cannot achieve directional cutting from the inside out. Summary of the Invention

[0005] The purpose of the present invention is to provide a wire hanging combination for the treatment of anal fistula, mainly solving the technical problems that the traditional wire hanging therapy has poor drainage and detumescence effects in the early stage of healing and cannot achieve directional cutting in the later stage of healing.

[0006] In order to achieve the above purpose, the technical solution of the present invention is as follows:

[0007] A wire hanging combination for the treatment of anal fistula, characterized in that:

[0008] It includes a first wire hanging component and a second wire hanging component;

[0009] The first wire hanging component includes a first hollow tube and a first plug-in component; the first plug-in component is a bidirectional pagoda-shaped structure, and the outer diameter of the first plug-in component is adapted to the inner diameter of the first hollow tube;

[0010] The second wire hanging component includes a cutting component, a second plug-in component, two second hollow tubes with the same inner diameter, and a locking component;

[0011] The second plug-in member has the same structure and size as the first plug-in member; the two second hollow tubes are respectively located at both ends of the cutting member and are connected to the cutting member; the inner diameters of the first hollow tube and the second hollow tube are the same;

[0012] Two locking holes are provided on the locking member for respectively locking the ends of the two second hollow tubes away from the cutting member.

[0013] Further, the cutting member is a titanium-nickel memory alloy wire, and this material can ensure its firmness on the basis of a small diameter, thereby providing a better cutting effect.

[0014] Further, a plurality of annular protrusions are circumferentially and uniformly distributed on the outer wall of the second hollow tube, which can stimulate the tissue in the fistula during use and accelerate healing.

[0015] Further, at least one annular protrusion of each second hollow tube is provided with a diversion hole communicating with the second hollow tube.

[0016] Further, the diversion holes include three, two of which are arranged in sequence and are located on the annular protrusion close to the cutting member, and the other is arranged on the annular protrusion in the middle of the second hollow tube.

[0017] Further, the locking hole is a tapered hole and the aperture of the small tapered end is smaller than the outer diameter of the annular protrusion.

[0018] Further, one side surface of the locking member is a convex surface and the opposite side is a concave surface; the large tapered end of the locking hole opens on the concave surface and the small tapered end opens on the convex surface.

[0019] Further, one side surface of the locking member is a convex surface and the opposite side is a flat surface; the large tapered end of the locking hole opens on the flat surface and the small tapered end opens on the convex surface.

[0020] Further, the first hollow tube and the second hollow tube are made of an elastic material; the first plug-in member and the second plug-in member are made of a hard material.

[0021] Further, the materials of the first hollow tube and the second hollow tube are silicone rubber, which has good biocompatibility, high safety, good elasticity and is relatively soft;

[0022] The materials of the first plug-in member and the second plug-in member are metal or plastic. Because the size of the plug is small and the silicone tube is relatively soft, hard plugs such as metal or plastic are convenient for users to insert them into the first hollow tube or the second hollow tube.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention includes a first thread-hanging component and a second thread-hanging component. The first thread-hanging component is used to promote the discharge of pus in the fistula, and the second thread-hanging component is used to achieve directional cutting of tissues. The two are used in cooperation, which can significantly improve the treatment effect of anal fistula.

[0025] 2. During the treatment of anal fistula in the present invention, since the first plug-in member has a double-directional pagoda-shaped structure and its outer diameter is adapted to the inner diameter of the first hollow tube, when in use, the two ends of the first plug-in member are respectively inserted into the two ends of the first hollow tube to form a node-free ring structure, which can rotate in the fistula, thereby comprehensively stimulating the fistula and facilitating the timely discharge of pus in the fistula.

[0026] 3. The structures and dimensions of the first plug-in member and the second plug-in member of the present invention are the same, and the inner diameters of the first hollow tube and the second hollow tube are the same. Therefore, when the second thread-hanging component replaces the first thread-hanging component, only the second plug-in member needs to be inserted into one end of the first hollow tube to realize the connection between the second thread-hanging component and the first thread-hanging component, thereby taking out the first hollow tube and at the same time threading the second thread-hanging component into the fistula. The operation is simple and the efficiency is high.

[0027] 4. The cutting member of the present invention is a titanium-nickel memory alloy wire, and this material can ensure that it has firmness on the basis of a small diameter, thereby providing a better cutting effect.

[0028] 5. The present invention circumferentially distributes a plurality of annular protrusions on the outer wall of the second hollow tube. After threading the second thread-hanging component into the fistula, the two ends of the two second hollow tubes away from the cutting member respectively rely on the locking member and the annular protrusions and are locked on the locking member, which is convenient for operation.

[0029] 6. The second hollow tube of the present invention is made of an elastic material. When locking, the cutting member is located at the tissue to be cut. After locking, the second hollow tube undergoes elastic deformation to generate a contraction tension. Under the action of the elastic contraction tension of the second hollow tube, the cutting member realizes directional and slow cutting of the tissue without causing damage to other tissues. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a reference diagram of the use function state of the traditional thread-hanging therapy;

[0031] Figure 2 It is a schematic structural diagram of the first thread-hanging component in the embodiment of the present invention;

[0032] Figure 3 It is a schematic structural diagram of the second thread-hanging component in the embodiment of the present invention;

[0033] Figure 4 It is a cross-sectional view of the locking member in the embodiment of the present invention;

[0034] Figure 5A reference diagram of the use state of the first hanging wire assembly in an embodiment of the present invention;

[0035] Figure 6 A reference diagram of a state when the first hanging wire assembly and the second hanging wire assembly are connected in an embodiment of the present invention;

[0036] Figure 7 This is a reference diagram of the use status of the second hanging wire assembly in an embodiment of the present invention.

[0037] The reference numerals are as follows:

[0038] 1-first hollow tube, 2-first plug-in piece, 3-cutting piece, 4-second plug-in piece, 5-second hollow tube, 51-annular protrusion, 52-guiding hole, 6-locking piece, 61-locking hole. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] like Figure 2 and Figure 3 As shown, this embodiment provides a hanging wire combination for anal fistula treatment, including a first hanging wire assembly and a second hanging wire assembly, wherein the first hanging wire assembly is used to promote the discharge of pus in the fistula, and the second hanging wire assembly is used to achieve directional cutting of tissue. The two hanging wire assemblies are used in conjunction with each other to significantly improve the effect of anal fistula treatment.

[0041] The first hanging wire assembly includes a first hollow tube 1 and a first connector 2. The outer diameter of the first connector 2 is adapted to the inner diameter of the first hollow tube 1. When in use, the first connector 2 is plugged into one end of the first hollow tube 1. The first connector 2 is a bidirectional pagoda-shaped structure, which is easy to plug and unplug and convenient for clinical use. The first hollow tube 1 can be cut to a suitable length according to the actual situation of the patient's fistula.

[0042] The second hanging wire assembly includes a cutting piece 3, a second plug-in piece 4, two second hollow tubes 5 with the same inner diameter, and a locking piece 6. The two second hollow tubes 5 are respectively located at both ends of the cutting piece 3 and connected to the cutting piece 3; the second plug-in piece 4 and the first plug-in piece 2 have the same structure and size, and the first hollow tube 1 and the second hollow tube 5 have the same inner diameter, so as to facilitate the plugging of the second plug-in piece 4 with the first hollow tube 1, so that the second hanging wire assembly can be introduced synchronously while the first hanging wire assembly is taken out.

[0043] In this embodiment, the first hollow tube 1 and the second hollow tube 5 are made of elastic material, such as silicone rubber. The first plug-in component 2 and the second plug-in component 4 are made of metal or plastic.

[0044] The locking member 6 is provided with two locking holes 61 for locking the ends of the two second hollow tubes 5 away from the cutting member 3 respectively. A plurality of annular protrusions 51 are circumferentially and uniformly distributed on the outer wall of the second hollow tube 5. The locking hole 61 is a tapered hole and the diameter of the small tapered end is smaller than the outer diameter of the annular protrusion 51. After the two second hollow tubes 5 respectively pass through the corresponding locking holes 61, they are locked and fixed by the locking member 6.

[0045] The arrangement of the annular protrusions 51 can, on the one hand, assist in the discharge of pus in the fistula, and on the other hand, cooperate with the locking member 6 to realize the locking and fixing of the second hollow tube 5.

[0046] At least one annular protrusion 51 of each second hollow tube 5 is provided with a diversion hole 52 communicating with the second hollow tube 5 for timely discharge of pus in the tube. In this embodiment, there are three diversion holes 52 on each second hollow tube 5, two of which are arranged in sequence and are located on the annular protrusion 51 close to the cutting member 3, and the other is arranged on the annular protrusion 51 in the middle of the second hollow tube 5. The corresponding number of diversion holes 52 can also be opened at the corresponding positions according to actual needs.

[0047] As Figure 4 shown, in this embodiment, one side of the locking member 6 is a convex surface and the opposite side is a concave surface; the large tapered end of the locking hole 61 opens on the concave surface and the small tapered end opens on the convex surface.

[0048] Alternatively, one side of the locking member 6 is a convex surface and the opposite side is a flat surface; the large tapered end of the locking hole 61 opens on the flat surface and the small tapered end opens on the convex surface.

[0049] The cutting member 3 in this example is a titanium-nickel memory alloy metal wire. When the two second hollow tubes 5 are respectively locked, the titanium-nickel memory alloy metal wire is exactly located at the tissue to be cut, so as to realize the directional cutting of the tissue.

[0050] Combined Figures 5 to 7 with, the usage process of the thread-hanging combination for anal fistula treatment of the present invention will be described.

[0051] Before the anal fistula surgery, one end of the first hollow tube 1 and the first plug-in member 2 are inserted and combined to form the first thread-hanging assembly, and one end of the second hollow tube 5 and the second plug-in member 4 are inserted and combined to form the second thread-hanging assembly. Before this, the lengths of the first hollow tube 1 and the second hollow tube 5 need to be reasonably determined according to the length of the fistula.

[0052] During the anal fistula surgery, a probe is used to introduce the first thread-hanging assembly into the fistula from the inner opening of the fistula and lead it out from the outer opening of the fistula. According to the patient's condition, the length of the first hollow tube 1 is trimmed, and the other end of the first hollow tube 1 is inserted and combined with the first plug-in member 2 to form a loop; the loop is rotated in due course to promote the discharge of pus.

[0053] After the perianal abscess is eliminated, pull out the first plug-in part 2 from one end of the first hollow tube 1, and insert one end of the second plug-in part 4 into the end of the first hollow tube 1 from which the first plug-in part 2 is pulled out. At this time, the first plug-in part 2, the first hollow tube 1, the second plug-in part 4, and the second hollow tube 5 are connected in sequence.

[0054] Withdraw the first hollow tube 1 from the fistula at the end where the first plug-in part 2 is inserted, which will drive the second hollow tube 5 to penetrate into the fistula at the same time; when the first hollow tube 1 is completely withdrawn, pull out the second plug-in part 4 from the first hollow tube 1.

[0055] Next, insert the ends of the two second hollow tubes 5 away from the cutting part 3 into the locking holes 61 of the locking part 6 and pass through them respectively, so that the cutting part 3 is placed at the tissue to be cut; at this time, tighten the two second hollow tubes 5 and lock and fix them through the locking part 6. Since the locking hole 61 is a tapered hole, the second hollow tube 5 enters from the large taper end and extends from the small taper end, and is clamped to the outer end face of the small taper end through the annular protrusion 51 on the second hollow tube 5, thereby realizing the locking of the second hollow tube 5 and preventing it from displacing.

[0056] In application, after the second hollow tube 5 is tightened, the second hollow tube 5 undergoes elastic deformation and generates a contraction tension. The cutting part 3 does not deform, and its diameter is smaller than that of the second hollow tube 5. Under the tension provided by the second hollow tube 5, the enclosed tissue is cut directionally, and the cutting position is the tissue where the cutting part 3 is in contact.

[0057] The thread-hanging combination for treating anal fistula of the present invention is convenient to use, and the lengths of the first hollow tube 1 and the second hollow tube 5 can be cut according to actual needs, and the applicable range is relatively wide.

[0058] The first thread-hanging component composed of the first hollow tube 1 and the first plug-in part 2 of the present invention is a seamless ring. Compared with the traditional thread-hanging treatment method, it can rotate in the fistula, comprehensively stimulate the fistula, which is beneficial to the discharge of pus and the healing of the wound.

[0059] Above, although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art in the technical field of the present invention, as long as it is within the scope of the essential spirit of the present invention, the changes and modifications of the above embodiments should be regarded as falling within the protection scope of the present invention.

Claims

1. A thread-drawing combination for anal fistula treatment, characterized in that: It includes a first thread-drawing component and a second thread-drawing component; The first thread-drawing component includes a first hollow tube (1) and a first plug-in component (2); the first plug-in component (2) is of a double-directional pagoda structure, and the outer diameter of the first plug-in component (2) is adapted to the inner diameter of the first hollow tube (1); The second thread-drawing component includes a cutting component (3), a second plug-in component (4), two second hollow tubes (5) with the same inner diameter, and a locking component (6); The second plug-in component (4) has the same structure and size as the first plug-in component (2); the two second hollow tubes (5) are respectively located at both ends of the cutting component (3) and are connected to the cutting component (3); the first hollow tube (1) has the same inner diameter as the second hollow tube (5); The locking component (6) is provided with two locking holes (61) for respectively locking the ends of the two second hollow tubes (5) away from the cutting component (3).

2. The thread-drawing combination for anal fistula treatment according to claim 1, characterized in that: The cutting component (3) is a titanium-nickel memory alloy wire.

3. The thread-drawing combination for anal fistula treatment according to claim 2, characterized in that: A plurality of annular protrusions (51) are circumferentially and uniformly distributed on the outer wall of the second hollow tube (5).

4. The thread-drawing combination for anal fistula treatment according to claim 3, characterized in that: At least one annular protrusion (51) of each second hollow tube (5) is provided with a diversion hole (52) communicating with the second hollow tube (5).

5. The thread-drawing combination for anal fistula treatment according to claim 4, characterized in that: The diversion holes (52) include three, two of which are arranged in sequence and are located on the annular protrusion (51) close to the cutting component (3), and the other is arranged on the annular protrusion (51) in the middle of the second hollow tube (5).

6. The thread-drawing combination for anal fistula treatment according to claim 1, characterized in that: The locking hole (61) is a tapered hole, and the aperture of the small tapered end is smaller than the outer diameter of the annular protrusion (51).

7. The thread-drawing combination for anal fistula treatment according to claim 6, characterized in that: One side of the locking component (6) is a convex surface, and the opposite side is a concave surface; the large tapered end of the locking hole (61) opens on the concave surface, and the small tapered end opens on the convex surface.

8. The thread-drawing combination for anal fistula treatment according to claim 6, characterized in that: One side of the locking component (6) is a convex surface, and the opposite side is a flat surface; the large tapered end of the locking hole (61) opens on the flat surface, and the small tapered end opens on the convex surface.

9. The thread-drawing combination for anal fistula treatment according to any one of claims 1 to 8, characterized in that: The first hollow tube (1) and the second hollow tube (5) are made of elastic materials; The first plug-in component (2) and the second plug-in component (4) are made of hard materials.

10. The thread-drawing combination for anal fistula treatment according to claim 9, characterized in that: The materials of the first hollow tube (1) and the second hollow tube (5) are silicone rubber; The materials of the first plug-in component (2) and the second plug-in component (4) are metal or plastic.

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