CN218870411U

CN218870411U - Endoscope snare

Info

Publication number: CN218870411U
Application number: CN202222835328.8U
Authority: CN
Inventors: 高秀珍; 张�诚
Original assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Current assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-04-18
Anticipated expiration: 2032-10-26

Abstract

The utility model provides an scope snare, include: the snare, the outer sleeve, the connecting part and the handle; the snare is of a barbed sliding wire structure and comprises a wire ring and a bottom wire which are connected, the wire ring is arranged outside the outer sleeve, the front end of the bottom wire is connected with the tail part of the wire ring, the tail part of the bottom wire extends into the outer sleeve through the front end of the outer sleeve, and the tail end of the bottom wire positioned in the outer sleeve is connected with the front end of the connecting part; the connecting part is positioned in the outer sleeve, and the tail end of the connecting part is connected with the handle; the tail part of the outer sleeve is connected with the handle; the handle is provided with a high-frequency generator for separating the snare from the connecting part. The utility model discloses put into the scope front end through scope pincers way, continue to tighten up the snare after entangling the tissue with the snare, the snare separates with connecting portion when tying tightly the tissue, can realize under the scope the closure of lumen organs such as gall-bladder incision, gall-bladder duct, jejunum, can be used to organize the operation such as ligation and hemostasis simultaneously.

Description

Endoscope snare

Technical Field

The utility model relates to a medical technology of wicresoft and surgical instruments technical field especially relate to an scope snare.

Background

The snare is a common instrument for laparoscopic surgery, can realize the closure of organs of cavities such as a gall bladder incision, a gall bladder duct, jejunum and the like by being inserted into the snare through a laparoscopic stabbing clamp, and can be used for tissue ligation, hemostasis and other operations.

With the application of soft endoscopes such as duodenoscope, laparoscope and cystoscope, the surgical trauma is smaller and smaller, but the devices for cutting, suturing and closing under the endoscope are relatively few, so that the requirement of endoscopic surgery is difficult to satisfy. At present, the most common clamping and suturing instrument under an endoscope is a metal clip which is generally used for digestive tract operation, and after an incision is healed, the fallen metal clip can be discharged out of a body, but the metal clip is difficult to be conventionally used for laparoscopic operation.

SUMMERY OF THE UTILITY MODEL

In accordance with the technical problem set forth above, an endoscopic snare is provided. The utility model discloses mainly utilize snare, connecting portion and the high frequency generator of the absorbable slide wire of taking the folk prescription to the barb to realize the ligation of scope tissue down. The utility model discloses a technical means as follows:

an endoscopic snare comprising: the snare, the outer sleeve, the connecting part and the handle; the snare is of a barbed sliding wire structure and comprises a wire loop and a bottom wire which are connected, the wire loop is arranged outside the outer sleeve, the front end of the bottom wire is connected with the tail part of the wire loop, the tail part of the bottom wire extends into the outer sleeve through the front end of the outer sleeve, and the tail end of the bottom wire positioned in the outer sleeve is connected with the front end of the connecting part; the connecting part is positioned in the outer sleeve, and the tail end of the connecting part is connected with the handle; the tail part of the outer sleeve is connected with the handle; the handle is provided with a high-frequency generator for separating the snare from the connecting part.

Furthermore, the snare is an absorbable slide wire structure with unidirectional barbs, a plurality of barbs are arranged on the snare, and the inclination directions of the barbs are the same.

Further, after the slide line structure is spread and stretched, an included angle between the barb and the slide line is an acute angle, and the included angle inclines outwards towards the front end direction.

Furthermore, a plurality of barbs are distributed at intervals from left to right and from top to bottom or from top to bottom in the circumferential direction.

Furthermore, the front end of the outer sleeve is provided with a through hole for the bottom line to pass through.

Further, the outer sleeve is a single channel tube.

Further, a button is connected to the high frequency generator.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model provides an endoscope snare can realize the ligation of scope tissue down.

2. The utility model provides an scope snare takes the folk prescription to the absorbable slide wire of barb, easily ties up the tissue, prevents simultaneously that the knot from becoming flexible.

3. The utility model provides a scope snare is when the tight tissue of cover, and snare and connecting portion are the high tension state, connect high frequency generator, and through the heat production of head end, snare and connecting portion separation.

Based on the reason, the utility model discloses can extensively promote in fields such as medical treatment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the present invention in use.

Fig. 3 is a schematic view of the snare of the present invention starting to separate from the connection portion.

Fig. 4 is a schematic view of the structure of the wire loop of the snare of the present invention.

Fig. 5 is a schematic view of the barb structure of the snare of the present invention.

In the figure: 1. a snare; 11. a wire loop; 2. an outer sleeve; 3. a connecting portion; 4. a handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown in figures 1-5, the utility model provides an endoscope snare, which belongs to a snare. The endoscope snare is characterized by comprising: a snare 1, an outer sleeve 2, a connecting part 3 and a handle 4; the snare 1 is of a barbed sliding wire structure and comprises a wire ring 11 and a bottom wire which are connected, the wire ring 11 is arranged outside the outer sleeve 2, the front end of the bottom wire is connected with the tail part of the wire ring 11, the tail part of the bottom wire extends into the outer sleeve 2 through the front end of the outer sleeve 2, and the tail end of the bottom wire positioned in the outer sleeve 2 is connected with the front end of the connecting part 3; the connecting part 3 is positioned in the outer sleeve 2, and the tail end of the connecting part is connected with the handle 4; the tail part of the outer sleeve 2 is connected with a handle 4; the handle 4 is provided with a high-frequency generator for separating the snare 1 from the connection part 3.

As a preferred embodiment, the snare 1 is an absorbable slide wire structure with unidirectional barbs, a plurality of barbs are arranged on the absorbable slide wire structure, and the inclination directions of the barbs are the same.

In a preferred embodiment, after the slide line structure is spread and stretched, an included angle between the barb and the slide line is an acute angle, and the barb is inclined outwards towards the front end direction.

As a preferred embodiment, the plurality of barbs are distributed at intervals from left to right and up and down (namely, all barbs on the left side and the right side are distributed on the same plane), or are distributed at intervals from the top to the bottom in the circumferential direction (namely, all barbs are distributed on different planes, at least one barb can be arranged on the circumference of each circle, and the barbs on a plurality of circles are distributed at intervals in the upper and lower linear directions of spreading).

In a preferred embodiment, the front end of the outer sleeve 2 is provided with a through hole for passing a bobbin thread.

In a preferred embodiment, the outer sleeve 2 is a single-channel tube, and the tail portion of the bobbin thread and the connecting portion 3 are located in the single channel.

In a preferred embodiment, the high-frequency generator is connected to a button.

The utility model discloses put into the scope front end through scope pincers way, continue to tighten up the snare after entangling the tissue with the snare, the snare separates with connecting portion when tying tightly the tissue, can realize under the scope the closure of lumen organs such as gall-bladder incision, gall bladder duct, jejunum, can be used to the operation such as tissue ligation and hemostasis simultaneously.

Need use the utility model discloses the time, put into through scope pincers way the utility model discloses, scope direct-view down, with snare cover on needs closed tissue, tighten up the closed complete set of tissue of snare, connect high-frequency generator, snare and connecting portion separation withdraw from the outer tube.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An endoscopic snare, comprising: a snare (1), an outer sleeve (2), a connecting part (3) and a handle (4); the snare (1) is of a barbed sliding wire structure and comprises a wire loop (11) and a bottom wire which are connected, the wire loop (11) is arranged outside the outer sleeve (2), the front end of the bottom wire is connected with the tail part of the wire loop (11), the tail part of the bottom wire extends into the outer sleeve (2) through the front end of the outer sleeve (2), and the tail end of the bottom wire positioned in the outer sleeve (2) is connected with the front end of the connecting part (3); the connecting part (3) is positioned in the outer sleeve (2), and the tail end of the connecting part is connected with the handle (4); the tail part of the outer sleeve (2) is connected with the handle (4); the handle (4) is provided with a high-frequency generator for separating the snare (1) from the connecting part (3).

2. An endoscopic snare according to claim 1, wherein the snare (1) is an absorbable slide wire structure with unidirectional barbs, and a plurality of barbs are provided thereon, and the inclination directions of the barbs are the same.

3. An endoscopic snare according to claim 2, wherein the slide wire structure is spread open, and the barb and the slide wire form an acute angle and incline outward toward the front end.

4. An endoscopic snare according to claim 2 or 3, wherein the plurality of barbs are spaced left to right or circumferentially up and down.

5. An endoscopic snare according to claim 1, wherein the front end of the overtube (2) is provided with a through hole for passing a base wire therethrough.

6. An endoscopic snare according to claim 1, wherein the outer cannula (2) is a single channel tube.

7. An endoscopic snare according to claim 1, wherein a button is connected to the high frequency generator.