A snare

Abstract

This utility model discloses a snare, comprising: a cylindrical body, with a movable finger buckle fitted on the outer side of the cylindrical body, the movable finger buckle being slidable along the length of the cylindrical body; a hollow tube fixedly connected to one end of the cylindrical body, with a detachable protective soft sleeve at the end of the hollow tube; a guide wire disposed inside the hollow tube, one end of the guide wire being fixedly connected to the movable finger buckle, and the other end of the guide wire extending to the outside of the protective soft sleeve, the other end of the guide wire being fixedly connected to a collar, with a soft sac membrane disposed inside the collar. This utility model provides a snare, through a multi-structure design, which adds a soft sac membrane to the traditional snare. The soft sac membrane temporarily stores the removed polyps, allowing the polyps to be removed along with the device when it is taken out, avoiding the time-consuming use of additional tools and improving efficiency.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a snare device. Background Technology

[0002] A snare is a device that uses a nylon rod to tighten a slip knot pre-made with absorbable or synthetic sutures to ligate blood vessels, polyps, or other ductal structures. It is easy to operate and has been used in a variety of laparoscopic abdominal surgeries.

[0003] For example, Chinese utility model patent (CN203315033U) discloses a snare device, which describes: "It includes a handle, a finger ring, an outer tube, and a hollow connecting tube. The finger ring is set on the handle, one end of the finger ring is connected to one end of the outer tube, and the other end of the outer tube is connected to the hollow connecting tube. A snare-shaped jaw is provided at the head of the hollow connecting tube. The snare-shaped jaw is elliptical and a guide head is provided on the snare-shaped jaw." It also describes the technical problem that "the snare device in the prior art has great limitations. It is difficult to control the opening range of the snare-shaped jaw, and it is not easy to ligate some large polyps."

[0004] In summary, it can be seen that the existing technology uses snare-shaped clamps to cut polyps. However, this method has the following technical problems: the cut polyps cannot be directly removed from the body and other tools need to be inserted to remove them, which takes a lot of time. Therefore, this application proposes a snare device to solve the above-mentioned technical problems and provide a new technical solution. Utility Model Content

[0005] Therefore, it is necessary to provide a snare device to address the aforementioned technical problems. Through the coordinated design of multiple structures, the device adds a soft sac to the traditional snare device. The soft sac temporarily stores the removed polyps, so that the polyps can be removed together when the device is taken out, avoiding the time-consuming use of additional tools and improving efficiency.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A snare device used for polyp removal.

[0008] The snare specifically includes:

[0009] The cylindrical body has a movable finger buckle fitted on its outer side, which can slide along the length of the cylindrical body. A hollow tube is fixedly connected to one end of the cylindrical body, and a protective soft sleeve is detachably provided at the end of the hollow tube. A guide wire is provided inside the hollow tube, one end of which is fixedly connected to the movable finger buckle, and the other end of which can extend to the outside of the protective soft sleeve. A collar is fixedly connected to the other end of the guide wire, and a soft membrane is provided inside the collar.

[0010] In a preferred embodiment of the snare provided by this utility model, the protective soft sleeve is fitted onto the outside of the hollow tube end, and a limiting ring is fixedly connected to the outside of the hollow tube near the end, the limiting ring being used to limit the movement of the protective soft sleeve.

[0011] In a preferred embodiment of the snare provided by this utility model, guide grooves are provided at the end of the hollow tube and the lower part of the protective soft sleeve. The guide grooves are arranged from small to large, and the larger end of the guide groove is set as an opening.

[0012] In a preferred embodiment of the snare provided by this utility model, the upper part of the protective soft sleeve away from the hollow tube is fastened with an anti-unfolding buckle.

[0013] In a preferred embodiment of the snare provided by this utility model, the upper part of the protective soft sleeve is provided with a groove, and the anti-unfolding buckle is located inside the groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The snare provided by this utility model, through the combined design of multiple structures, adds a soft membrane to the traditional snare. The soft membrane temporarily stores the removed polyps, so that the polyps can be removed together when the device is taken out, avoiding the time-consuming use of additional tools and improving efficiency. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the overall structure of the snare provided by this utility model;

[0018] Figure 2 A schematic diagram of the structure of the snare hollow tube, protective soft sleeve, snare ring, and soft diaphragm provided by this utility model;

[0019] Figure 3 A schematic diagram of the connection structure of the snare hollow tube and the protective soft sleeve provided by this utility model.

[0020] The markings in the diagram are explained as follows:

[0021] 1. Cylinder body; 2. Movable finger buckle; 3. Hollow tube; 4. Protective soft sleeve; 5. Ring; 6. Soft diaphragm; 7. Guide groove; 8. Limiting ring; 9. Anti-unfolding buckle frame; 10. Embedded groove. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] As in the background art, in the prior art, the removed polyps cannot be directly removed from the human body. Other tools need to be inserted to remove the removed polyps, which takes a lot of time.

[0024] To solve this technical problem, this utility model provides a snare device that is used for polyp removal.

[0025] For details, please refer to Figures 1-3 The trap specifically includes:

[0026] The cylinder 1 has a movable finger buckle 2 on its outer side, which can slide along the length of the cylinder 1. A hollow tube 3 is fixedly connected to one end of the cylinder 1. A protective soft sleeve 4 is detachably installed at the end of the hollow tube 3. A guide wire is installed inside the hollow tube 3. One end of the guide wire is fixedly connected to the movable finger buckle 2, and the other end of the guide wire can extend to the outside of the protective soft sleeve 4. A collar 5 is fixedly connected to the other end of the guide wire, and a soft membrane 6 is installed inside the collar 5.

[0027] The snare provided by this utility model, through the combined design of multiple structures, adds a soft sac membrane 6 to the traditional snare. The soft sac membrane 6 temporarily stores the removed polyps, so that the polyps can be removed together when the device is taken out, avoiding the time-consuming use of additional tools and improving efficiency.

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0029] Please refer to Figures 1-3 A snare device comprising:

[0030] A cylindrical body 1 has a movable finger buckle 2 fitted on its outer side, which can slide along the length of the cylindrical body 1. A hollow tube 3 is fixedly connected to one end of the cylindrical body 1, and a protective soft sleeve 4 is detachably installed at the end of the hollow tube 3. A guide wire is installed inside the hollow tube 3, with one end of the guide wire fixedly connected to the movable finger buckle 2 and the other end of the guide wire extending to the outside of the protective soft sleeve 4. A collar 5 is fixedly connected to the other end of the guide wire, and a soft membrane 6 is installed inside the collar 5.

[0031] Furthermore, to prevent the protective sleeve 4 from shifting during insertion, the protective sleeve 4 is fitted onto the outer side of the end of the hollow tube 3, and a limiting ring 8 is fixedly connected to the outer side of the hollow tube 3 near the end. The limiting ring 8 is used to limit the movement of the protective sleeve 4.

[0032] Furthermore, in order to facilitate the folding and closing of the soft membrane 6, guide grooves 7 are provided at the ends of the hollow tube 3 and the lower part of the protective soft sleeve 4. The guide grooves 7 are arranged from small to large, and the larger end of the guide groove 7 is set as an opening.

[0033] Furthermore, to prevent the end of the groove 10 away from the hollow tube 3 from unfolding to both sides, the upper part of the protective sleeve 4 away from the hollow tube 3 is fastened with an anti-unfolding buckle 9. In order to prevent the anti-unfolding buckle 9 from protruding, the upper part of the protective sleeve 4 is provided with a groove 10, and the anti-unfolding buckle 9 is located inside the groove 10.

[0034] Through the above structural design, it can be seen that the sliding movable finger buckle 2 can be driven by the guide ribbon to extend the collar 5 from inside the hollow tube 3. The collar 5 opens to both sides due to its own elasticity, which at the same time drives the soft sac membrane 6 to unfold. The collar 5 covers the polyp, and the movable finger buckle 2 is pulled to reset. Then, the polyp is removed by tightening the collar 5. The removed polyp is stored in the soft sac membrane 6. At the same time, during the process of the collar 5 being retracted into the hollow tube 3, the guide groove 7 guides the opening of the soft sac membrane 6 to close the opening of the soft sac membrane 6. Thus, when the device is removed, the polyp inside the soft sac membrane 6 will not fall out.

Claims

1. A snare device, characterized in that, include: A cylindrical body (1) is provided with a movable finger buckle (2) on the outside of the cylindrical body (1). The movable finger buckle (2) can slide along the length direction of the cylindrical body (1). A hollow tube (3) is fixedly connected to one end of the cylindrical body (1). A protective soft sleeve (4) is detachably provided at the end of the hollow tube (3). A guide wire is provided inside the hollow tube (3). One end of the guide wire is fixedly connected to the movable finger buckle (2). The other end of the guide wire can extend to the outside of the protective soft sleeve (4). A collar (5) is fixedly connected to the other end of the guide wire. A soft membrane (6) is provided inside the collar (5).

2. The snare device according to claim 1, characterized in that, The protective sleeve (4) is fitted on the outside of the end of the hollow tube (3). A limiting ring (8) is fixedly connected to the outside of the hollow tube (3) near the end. The limiting ring (8) is used to limit the movement of the protective sleeve (4).

3. The snare device according to claim 1, characterized in that, The hollow tube (3) and the lower part of the protective sleeve (4) are provided with guide grooves (7), which are arranged from small to large, and the larger end of the guide groove (7) is set as an opening.

4. The snare device according to claim 1, characterized in that, The protective sleeve (4) is fastened with an anti-unfolding buckle (9) at the upper part of the end away from the hollow tube (3).

5. The snare device according to claim 4, characterized in that, The upper part of the protective soft sleeve (4) is provided with a groove (10), and the anti-unfolding buckle (9) is located inside the groove (10).

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