Novel anal fistula snare

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a novel anal fistula snare which comprises a snare body, the snare body comprises a handle body and a connecting body, the connecting body is connected with a loop ligature sliding body in a sliding mode, and the tail end of the loop ligature sliding body is provided with a loop ligature hole. The novel anal fistula snare comprises a connecting body, a hanging rope connecting piece is arranged on the connecting body, the hanging rope connecting piece is connected to the connecting body in a sliding mode and conducts position locking, and scale marks are arranged on the connecting body and used for marking the sliding distance of the hanging rope connecting piece. And the sliding distance of the hanging rope connecting piece is marked through the scale marks, so that a doctor can refer to the using length of the hanging rope, and the operation is more standard and accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to a novel anal fistula snare. Background Art

[0002] Anal fistula snare is a new type of anal fistula medical device, which can realize the functions of anal fistula hanging and ligation;

[0003] The applicant has previously developed a new type of anal fistula snare and applied for patent protection, but it also has a usage problem.

[0004] That is, the length of the hanging wire and the degree of tension of the hanging wire can only be determined by the doctor's personal experience, and there may be irregularities in the operation. Utility Model Content

[0005] The utility model provides a novel anal fistula snare, which can solve the problems pointed out in the background technology.

[0006] A novel anal fistula snare comprises a snare body, wherein the snare body comprises a handle body and a connector, wherein a ligature sliding body is slidably connected to the connector, and a ligature hole is provided at the end of the ligature sliding body; a lanyard connector is provided on the connector, wherein the lanyard connector is slidably connected to the connector and is locked in position, and a scale line is provided on the connector for marking the sliding distance of the lanyard connector.

[0007] Preferably, the lanyard connector is slidably connected to the connector via a sliding sleeve, and a position locking assembly is provided on the sliding sleeve for position locking.

[0008] Preferably, the position locking assembly includes a "U"-shaped part and pressing parts respectively connected to the outer sides of both ends of the "U"-shaped part, the "U"-shaped part drives the sliding sleeve to slide back and forth, and clamps are respectively provided on both sides of the "U"-shaped part. The connecting body is provided with a sliding limit groove for the reciprocating sliding of the sleeve sliding body, and toothed parts cooperating with the clamps on both sides are respectively provided on both sides of the sliding limit groove.

[0009] Preferably, the "U"-shaped part is located inside the sliding sleeve, and a first limit push piece and a second limit push piece are respectively provided at the upper two ends of the "U"-shaped part, and the first limit push piece and the second limit push piece are respectively matched with the frame edge limit pieces at the two ends of the sliding sleeve in the length direction.

[0010] Preferably, the lanyard connecting piece is a lanyard connecting hook.

[0011] Beneficial effect: The utility model provides a novel anal fistula snare, a hanging rope connecting piece is slidably arranged, and the sliding distance of the hanging rope connecting piece is marked by a scale line, so that the doctor has a reference for the use length of the hanging rope, making the operation more standardized and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the position locking assembly of the utility model;

[0014] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0015] Description of reference numerals:

[0016] Numbers in the figure: handle body 1; connecting body 2; sliding limit groove 21; tying sliding body 3; sliding handle 31; tying hole 4; hanging rope connecting piece 5; scale line 6; sliding sleeve 7; position locking assembly 8; "U"-shaped piece 81; pressing piece 82; clamping piece 83; toothed piece 84; first limit push piece 85; second limit push piece 86; thread cutting hole 9; limit clamping sleeve 10; winding wheel 201; guide wheel 202; tangent control gear 301; toothed sliding plate 302; ejector pin 303. DETAILED DESCRIPTION

[0017] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0018] Example: Figure 1 As shown, a novel anal fistula snare comprises a snare body, the snare body comprises a handle body 1 and a connector 2, the connector 2 is slidably connected to a ligation sliding body 3, the ligation sliding body 3 is a ligation sliding rod, the inner end of which is connected to a sliding handle 31 to drive it to slide back and forth, the end of the ligation sliding body 3 is provided with a ligation hole 4 and a wire cutting hole 9; the end of the connector 2 is provided with a limiting clamping sleeve 10, the end of the ligation sliding body 3 slides back and forth in the limiting clamping sleeve 10, and also comprises a ligation wire tensioning mechanism, the ligation wire tensioning mechanism comprises a winding wheel 201, a wire wheel 202, etc., by rotating the winding wheel 201, some existing The structure also includes a tangent mechanism, which includes a tangent control gear 301 and a toothed sliding plate 302 matched with the tangent control gear 301, and the end of the toothed sliding plate 302 is connected to a pin 303, and the end of the pin 303 is slidably matched with the wire tangent hole 9. The tying wire is wound around the winding wheel 201, guided by the wire wheel 202, and passes through the wire tangent hole 9. A tying buckle is made at one end of the outer side of the tying wire, and the tying buckle is sleeved on the outer periphery of the tying hole 4. The end of the pin 303 cuts off the tightened tying wire when entering the wire tangent hole 9 or after entering the wire tangent hole 9. The above structures are all composed of existing mechanisms;

[0019] The utility model makes the following improvements on the basis of the existing structure, that is, a lanyard connector 5 is provided on the connector 2, the lanyard connector 5 is slidably connected to the connector 2 and is locked in position, and a scale line 6 is provided on the connector 2 for marking the sliding distance of the lanyard connector 5.

[0020] Specifically, the lanyard connector 5 is slidably connected to the connector 2 through the sliding sleeve 7. The lanyard connector 5 can be a lanyard connecting hook. The sliding sleeve 7 is provided with a position locking assembly 8 for position locking. The position locking assembly 8 includes a "U"-shaped member 81 and pressing members 82 respectively connected to the outer sides of the two ends of the "U"-shaped member 81. The "U"-shaped member 81 drives the sliding sleeve 7 to slide back and forth. The two sides of the "U"-shaped member 81 are respectively provided with clamping members 83. The connector 2 is provided with a sliding limit groove 21 for the sleeve sliding body 3 to slide back and forth. The two sides of the sliding limit groove 21 are respectively provided with clamping members 8 on both sides. The toothed member 84 of the "U"-shaped member 81 has a certain elasticity. By pressing the pressing member 82 on both sides, it is elastically deformed, and the clamping member 83 is separated from the toothed members 84 on both sides. At this time, the "U"-shaped member 81 drives the sliding sleeve 7 to slide back and forth freely, and the position is locked after the pressing member 82 returns to its position. Specifically, the "U"-shaped member 81 is located in the sliding sleeve 7, and the upper two ends of the "U"-shaped member 81 are respectively provided with a first limit push member 85 and a second limit push member 86, which are respectively matched with the frame edges at both ends of the length direction of the sliding sleeve 7.

[0021] The working principle or operation method of the utility model is to make a ligation buckle at one end of the outer side of the ligation pull line, and the ligation buckle is sleeved on the outer periphery of the ligation hole 4. The anal fistula hanging line is inserted into the anal fistula fistula tube, and after the other end is passed out, the two ends are connected to the hanging rope connecting piece 5 and straightened. At this time, the use length of the anal fistula hanging line can be obtained by reference to the scale line 6, and the sliding sleeve 7 is pulled back by referring to the scale line 6 to tighten the anal fistula hanging line, that is, the pulling distance can be known by referring to the scale line 6, so that it can be used as a reference. After tightening, the ligation sliding body 3 is driven to slide inward by the sliding handle 31. Under the limiting blocking action of the limiting sleeve 10, the ligation buckle of the ligation pull line is separated from the ligation hole 4, and the ligation buckle is sleeved on the anal fistula hanging line. The anal fistula hanging line is locked by the ligation pull line tightening mechanism, the ligation pull line is cut off by the cutting mechanism, and then the excess anal fistula hanging line is cut off by scissors.

[0022] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A novel anal fistula snare, comprising a snare body, the snare body comprising a handle body (1) and a connector (2), the connector (2) being slidably connected to a ligation sliding body (3), the end of the ligation sliding body (3) being provided with a ligation hole (4); the connector (2) being provided with a hanging rope connector (5), characterized in that: The lanyard connecting piece (5) is slidably connected to the connecting body (2) and is locked in position. The connecting body (2) is provided with a scale line (6) for marking the sliding distance of the lanyard connecting piece (5).

2. A novel anal fistula snare according to claim 1, characterized in that: The lanyard connector (5) is slidably connected to the connector (2) via a sliding sleeve (7), and a position locking component (8) is provided on the sliding sleeve (7) for position locking.

3. A novel anal fistula snare according to claim 2, characterized in that: The position locking assembly (8) comprises a "U"-shaped member (81) and pressing members (82) respectively connected to the outer sides of both ends of the "U"-shaped member (81); the "U"-shaped member (81) drives the sliding sleeve (7) to slide back and forth; clamping members (83) are respectively provided on both sides of the "U"-shaped member (81); a sliding limit groove (21) for the sleeve ligation sliding body (3) to slide back and forth is provided on the connecting body (2); and toothed members (84) cooperating with the clamping members (83) on both sides are respectively provided on both sides of the sliding limit groove (21).

4. A novel anal fistula snare according to claim 3, characterized in that: The "U"-shaped member (81) is located inside the sliding sleeve (7), and a first limit push member (85) and a second limit push member (86) are respectively provided at two upper ends of the "U"-shaped member (81), and the first limit push member (85) and the second limit push member (86) are respectively matched with the frame edges at two ends of the sliding sleeve (7) in the length direction.

5. A novel anal fistula snare according to claim 4, characterized in that: The lanyard connecting piece (5) is a lanyard connecting hook.

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