CN211704734U - Double-ring snare - Google Patents

Abstract

The utility model discloses a double circle type snare, including the outer tube, wear to establish snare and electricity congeal snare for electric coagulation for the ligature in the outer tube along the axial respectively, the front end of snare can be dismantled and be connected with the snare for the ligature, and the electricity congeals the front end of snare for electric coagulation and is equipped with the electricity and congeals the snare for electric coagulation. The utility model discloses a double-ring type snare, simple structure is convenient for carry out the polyp excision mode that does not bleed, and the snare mode from taking the ligature surface of a wound.

Description

Double-ring snare

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to double ring type snare.

Background

Polyps of the digestive tract are common in the center of digestive tract diseases and are mainly found in the large intestine, stomach and other parts. Polyps can occur singly or as many as a few or tens of multiple hairs, most with pedicles and a few with extensive bases. The pathological classification of polyps is neoplastic and pulmonary, while endoscopic minimally invasive treatment becomes the primary treatment modality for polyps. The existing endoscopic minimally invasive treatment method is divided into biopsy forceps taking, hot biopsy forceps taking, snare cold cutting, snare hot cutting, EMR (electro-magnetic resonance) method, EDS (acute respiratory syndrome) method, APC (automatic Power control) hot burning and the like according to the types and sizes of polyps, most of the polyps have abundant blood supplies, and therefore bleeding problems are most puzzled during clinical treatment. The ideal method for treating polyps is to perform ligation and resection at the root of polyps, but the above methods cannot avoid bleeding, and clinical application often requires hemostasis by a series of methods after polyp resection.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of polyp excision hemorrhage, the utility model provides a double-ring type ring cover ware.

In order to realize the purpose, the utility model discloses a technical scheme is: a double-ring type ring sleeve device comprises an outer tube, a ligation ring sleeve device and an electrocoagulation-electrosection ring sleeve device, wherein the ligation ring sleeve device and the electrocoagulation-electrosection ring sleeve device are respectively arranged in the outer tube in a penetrating mode along the axial direction, the ligation ring sleeve device is detachably connected to the front end of the ligation ring sleeve device, and the electrocoagulation-electrosection ring sleeve device is arranged at the front end of the electrocoagulation-electrosection ring sleeve device.

Furthermore, a first through hole and a second through hole parallel to the first through hole are formed in the outer tube along the axial direction, the first through hole is used for penetrating the snare for ligation, and the second through hole is used for penetrating the snare for electrocoagulation-electrosection.

Furthermore, the ligation snare comprises a first pull rope which is axially slidably arranged in the first through hole in a penetrating way, the front end of the first pull rope is detachably connected with the ligation snare, and the rear end of the first pull rope is connected with a first control handle; the electrocoagulation-electrosection snare comprises a second pull rope which is arranged in a second through hole in a penetrating mode in an axially slidable mode, the front end of the second pull rope is electrically connected with the electrocoagulation-electrosection snare, the rear end of the second pull rope is connected with a second control handle, and an electrode plug which is electrically connected with the second pull rope is arranged on the second control handle.

Furthermore, the ligation ring comprises a ring body and a sleeve, the sleeve can be sleeved on the ring body in a back-and-forth moving mode and divides the ring body into a front ring and a rear ring, the ring at the front end of the sleeve is used as a ligation ring, the ring at the rear end of the sleeve is used as a pull ring, and when the ligation ring is used, the ring body can move backwards relative to the sleeve by pulling the pull ring, so that the ligation ring is reduced.

Further, first cable and the first hole clearance fit that passes, and the front end of first cable is connected with the hook that is used for hooking the pull ring, and the first radial dimension that passes the hole is less than the first radial dimension that passes the hole along the first size that passes the hole radial direction of hook, annular breach has been seted up to the first front end inboard that passes the hole, sheathed tube rear end inserts the first front end that passes the hole and is spacing by the diapire axial of annular breach.

Furthermore, the snare body is made of nylon.

Compared with the prior art, the utility model discloses the technological effect who gains does: the utility model discloses a double-ring type snare, simple structure is convenient for carry out the polyp excision mode that does not bleed, and the snare mode from taking the ligature surface of a wound.

Drawings

Fig. 1 is a schematic structural view of a double-ring type bushing device in an embodiment of the present invention.

Fig. 2 is a schematic structural view of a ligation snare of the double-loop snare according to the embodiment of the present invention.

The reference numbers in the figures are: 1. the electric coagulation surgical instrument comprises an outer tube, 101, a first through hole, 102, a second through hole, 103, an annular gap, 201, a ligation ring, 201-1, a sleeve, 201-2, a ligation ring, 201-3, a pull ring, 202, a first pull rope, 203, a first control handle, 204, a hook, 301, an electric coagulation electric excision ring, 302, a second pull rope, 303, a second control handle and 304, and an electrode plug.

Detailed Description

The utility model discloses not confine the following embodiment to, general technical personnel in this field can adopt other multiple embodiment to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The specific embodiment of the utility model is as shown in fig. 1 and fig. 2, a double-ring snare, including outer tube 1, respectively along the axial snare for ligation and electric coagulation snare for excision of wearing to establish in outer tube 1, the front end of snare for ligation can be dismantled and be connected with snare 201 for ligation, and the electric coagulation is cut the front end of snare and is equipped with stainless steel's electric coagulation is cut snare 301 for electrotomy.

Specifically, the outer tube 1 is provided with a first through hole and a second through hole parallel to the first through hole along the axial direction, the first through hole is used for penetrating the snare for ligation, and the second through hole is used for penetrating the snare for electrocoagulation-electrosection. The ligation snare comprises a first pull rope 202 which is arranged in a first through hole in a penetrating mode in an axially slidable mode, the ligation snare 201 is detachably connected to the front end of the first pull rope 202, and a first control handle 203 is connected to the rear end of the first pull rope. The electrocoagulation electric cutting snare comprises a second pull rope 302 which is arranged in a second through hole in a penetrating mode in an axial sliding mode, the front end of the second pull rope 302 is electrically connected with the electrocoagulation electric cutting snare 301, the rear end of the second pull rope 302 is connected with a second control handle 303, and an electrode plug 304 which is used for being electrically connected with the second pull rope is arranged on the second control handle 303.

The snare 201 for ligation comprises a snare body and a sleeve 201-1, wherein the sleeve 201-1 can be sleeved on the snare body in a front-back movement mode and divides the snare body into a front loop and a rear loop, the loop at the front end of the sleeve 201-1 is used as a ligation loop 201-2, the loop at the rear end of the sleeve 201-1 is used as a pull ring 201-3, and when the snare 201-3 is pulled in use, the snare body can move backwards relative to the sleeve 201-1, so that the ligation loop 201-2 is shrunk. The snare body of the embodiment can be a circle or an ellipse formed by first hot fusion of nylon. Or a section of nylon is subjected to heat setting treatment and then is prepared by adopting a hot melting mode, specifically: the hot melting part forms hot melting knot, so that a ligation ring 201-2 connected to the front end of the hot melting knot and a pull ring 201-3 connected to the rear end of the hot melting knot are formed. The sleeve 201-1 is a transparent hollow tubular structure with elasticity and is made of silica gel or rubber, the sleeve 201-1 is sleeved outside the hot melt knot and separates the ligation ring and the pull ring at two ends of the sleeve, and the inner diameter of the sleeve 201-1 is less than twice of the outer diameter of the nylon.

The first cable 202 and the first hole clearance fit that passes, and the front end of first cable 202 is connected with the hook 204 that is used for hooking the pull ring, and the first radial dimension that passes the hole that passes is less than the first radial dimension that passes the hole of the first size that passes the hole radial direction of hook 204, the first front end inboard that passes the hole has seted up annular breach, and the rear end of sleeve 201-1 inserts the first front end that passes the hole and is spacing by the diapire axial of annular breach.

The operation method of the double-ring snare of the embodiment is as follows: a pull ring of a ligation ring is mounted on a hook in advance, and when polyps are observed under an endoscope, the double-ring snare is inserted into a forceps channel hole of the endoscope. The ligation snare and the electrocoagulation-resection snare are respectively controlled by a first control handle and a second control handle. After the front end of the double-ring type sleeving device is sent to a preset position, the first control handle is pushed, so that the ligation ring sleeved with the ligation ring is sleeved at the root of the polyp, after the ligation ring is sleeved, the first control handle is pulled backwards, the rear end of the sleeve is pushed by the bottom wall of the annular gap, the ligation ring is slowly reduced, and the purpose of ligation is achieved. The first control handle is then pushed forward to disengage the sleeve from the first aperture and expose both the hook and the pull ring at the front end of the first aperture, disengaging the hook from the pull ring, and pulling the first control handle rearward of the aperture to receive the hook in the first aperture. And then, the second control handle is pushed forwards, so that the ligated polyp is sleeved with the electrocoagulation-electrosection snare, and then the polyp is resected along the root by the electrocoagulation-electrosection snare.

In addition to the above embodiments, the electrocoagulation excision snare and the ligation snare of the present invention may be any one of those in the prior art, for example, the ligation snare may be a novel ligation device disclosed in chinese patent application No. 201320875343.3, and the electrocoagulation excision snare may be a single-hand push-out snare disclosed in chinese patent application No. 201520232471.5.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.

Claims (6)

1. The utility model provides a two rings type snare which characterized in that: the electric coagulation loop comprises an outer tube (1), and a ligation loop ring and an electric coagulation loop ring which are respectively arranged in the outer tube (1) in an axial penetrating manner, wherein the front end of the ligation loop ring is detachably connected with a ligation loop ring (201), and the front end of the electric coagulation loop ring is provided with an electric coagulation loop ring (301).

2. The double-ring bushing according to claim 1, wherein: the outer tube (1) is internally provided with a first through hole and a second through hole parallel to the first through hole along the axial direction, the first through hole is used for penetrating the snare for ligation, and the second through hole is used for penetrating the snare for electrocoagulation-electrosection.

3. The double-ring bushing according to claim 2, wherein: the ligation snare comprises a first pull rope (202) which is arranged in a first through hole in a penetrating mode in an axial sliding mode, the front end of the first pull rope (202) is detachably connected with the ligation snare (201), and the rear end of the first pull rope is connected with a first control handle (203); the electrocoagulation-electrosection snare comprises a second pull rope (302) which is arranged in a second through hole in a penetrating mode in an axial sliding mode, the front end of the second pull rope (302) is electrically connected with the electrocoagulation-electrosection snare (301), the rear end of the second pull rope (302) is connected with a second control handle (303), and an electrode plug (304) which is used for being electrically connected with the second pull rope is arranged on the second control handle (303).

4. The double-ring bushing according to claim 3, wherein: the snare (201) for ligation comprises a snare body and a sleeve (201-1), wherein the sleeve (201-1) can be sleeved on the snare body in a back-and-forth moving mode and divides the snare body into a front loop and a rear loop, the loops at the front end of the sleeve (201-1) are used as ligation rings (201-2), the loops at the rear end of the sleeve (201-1) are used as pull rings (201-3), and when the snare is used, the pull rings (201-3) are pulled, so that the snare body can move backwards relative to the sleeve (201-1), and the ligation rings (201-2) are reduced.

5. The double-ring bushing according to claim 4, wherein: first cable (202) and the first hole clearance fit that passes, and the front end of first cable (202) is connected with hook (204) that is used for hooking the pull ring, and the first radial dimension that passes the hole that passes is less than along the first size that passes the hole radial direction of hook (204), the first front end inboard that passes the hole has seted up annular breach, the rear end of sleeve pipe (201-1) inserts the first front end that passes the hole and is spacing by the diapire axial of annular breach.

6. The double-ring bushing according to claim 4, wherein: the snare body is made of nylon; and/or the ring sleeve (301) for electrocoagulation and electrosection is made of stainless steel.

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