CN218832871U

CN218832871U - Disposable electric snare

Info

Publication number: CN218832871U
Application number: CN202221910053.3U
Authority: CN
Inventors: 杭嘉; 王健; 蒋玉龙; 吕炳邑; 韩震宇
Original assignee: Changzhou Xinmeida Micro Invasive Medical Device Technology Co ltd
Current assignee: Changzhou Xinmeida Micro Invasive Medical Device Technology Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2023-04-11
Anticipated expiration: 2032-07-21

Abstract

The utility model relates to a disposable electric snare, including core bar, assembly wheel, electrode and sheath hose, the assembly wheel is located the core bar lower extreme, the electrode is assembled in the assembly wheel, the sheath hose is assembled in the assembly wheel lower extreme, the core bar slides and is equipped with the sliding ring, the lower extreme is fixed and is equipped with the cable in the middle part of the sliding ring, the cable downside slides and locates inside the sheath hose, the cable lower extreme is fixed and is equipped with the electric snare, the core bar inboard still is equipped with presss from both sides and gets the mechanism; the clamping mechanism comprises a C-shaped elastic clamping ring, a tight rope, a spacing bar and a clamping assembly; the clamping assembly comprises two hook claws and two rotating rods; this device is in the disease department excision back to the patient, can snatch the affected part tissue after the excision fast, improves work efficiency.

Description

Disposable electric snare

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to disposable electricity snare.

Background

The electric snare is usually used in combination with an endoscope, is used for sleeving tissues needing to be resected, is used for carrying out the resection of an affected part by connecting a high-frequency current through an electrode, often needs to be used alternately for various instruments in the process of carrying out an operation, and after the affected part of a patient is resected through the electric snare, the tissues of the resected affected part need to be collected by switching the instruments, so that the operation time is prolonged by replacing the instruments, discomfort of the patient is increased, and the problem is solved by providing the disposable electric snare.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: aims to provide a disposable electric snare which is used for solving the problems existing in the background technology.

In order to realize the technical purpose, the utility model discloses a technical scheme as follows:

the disposable electric snare comprises a core bar, an assembling wheel, electrodes and a sheath hose, wherein the assembling wheel is arranged at the lower end of the core bar, the electrodes are assembled on the assembling wheel, the sheath hose is assembled at the lower end of the assembling wheel, the core bar is provided with a sliding ring in a sliding manner, the lower end of the middle part of the sliding ring is fixedly provided with a pull rope, the lower side of the pull rope is arranged in the sheath hose in a sliding manner, the lower end of the pull rope is fixedly provided with an electric loop, and the inner side of the core bar is also provided with a clamping mechanism;

the clamping mechanism comprises a C-shaped elastic clamping ring, a tight rope, an isolating strip and a clamping assembly, the C-shaped elastic clamping ring is arranged on the lower side of the core rod in a damping sliding mode, a supporting block is arranged on the inner side of the C-shaped elastic clamping ring, the tight rope is fixedly arranged at the lower end of the supporting block, the tight rope penetrates through the sheath hose in a sliding mode from top to bottom, the isolating strip is fixedly assembled inside the sheath hose, the isolating strip is located between the inhaul cable and the second inhaul cable, and the clamping assembly is arranged between the tight rope and the lower side of the sheath hose;

the clamping assembly comprises two hook claws and two rotating rods, a mounting ring is fixedly arranged at the lower end of the sheath hose, the hook claws are rotatably arranged at the lower end of the mounting ring, the hook claw lower ends are buckled with each other, one ends of the rotating rods are rotatably arranged at the lower end of the compact rope, the other ends of the rotating rods are rotatably arranged at two ends of the hook claws, and a reset piece is arranged between the hook claws.

The reset piece is a reset spring which is fixedly assembled between the two hook claws.

And a telescopic sleeve is fixedly arranged between the supporting block and the assembling wheel and sleeved outside the tight rope.

The hook claw and the rotating rod are made of non-conductive materials.

The electric coil is formed by weaving stainless steel wires.

And scale marks are arranged on the outer side of the core rod.

The utility model has the advantages of, can make inseparable rope rely on reset spring's elasticity to the slip C shape snap ring of assembly wheel direction slides inside the sheath hose, and rely on reset spring to make two collude the claw and open, this moment doctor alright with collude two claws and remove the affected part of being amputated, then stimulate C shape snap ring, make two collude the closed affected part that is amputated of claw and snatch, the doctor just so can take out the affected part of being amputated fast, and the work efficiency is improved, and the patient's discomfort is reduced.

Drawings

The invention can be further illustrated by means of non-limiting examples given in the figures.

FIG. 1 is a first schematic structural view of a disposable electric snare according to the present invention;

FIG. 2 is a schematic cross-sectional view of the disposable electric snare;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a second schematic view of the disposable electric snare;

FIG. 5 is an enlarged schematic view at B in FIG. 4;

the main component symbols are as follows:

the device comprises a core bar 1, an assembling wheel 11, an electrode 12, a sheath hose 13, a slip ring 14, a pull cable 15, an electric coil 16, a C-shaped elastic snap ring 21, a supporting block 211, a tight rope 22, an isolating strip 23, a claw 24, a rotating rod 25, a mounting ring 26, a return spring 27, an expansion sleeve 28 and scale marks 31.

Detailed Description

In order to make the technical solution of the present invention better understood, the following description is provided for the purpose of illustrating the present invention with reference to the accompanying drawings and embodiments.

The first embodiment is as follows:

as shown in fig. 1-4, the disposable electric snare of the present invention comprises a core bar 1, an assembly wheel 11, electrodes 12 and a sheath hose 13, wherein the assembly wheel 11 is arranged at the lower end of the core bar 1, the electrodes 12 are assembled on the assembly wheel 11, the sheath hose 13 is assembled at the lower end of the assembly wheel 11, the core bar 1 is provided with a sliding ring 14 in a sliding manner, the lower end of the middle part of the sliding ring 14 is fixedly provided with a pulling cable 15, the lower side of the pulling cable 15 is arranged inside the sheath hose 13 in a sliding manner, the lower end of the pulling cable 15 is fixedly provided with an electric snare 16, and the inner side of the core bar 1 is further provided with a clamping mechanism;

the clamping mechanism comprises a C-shaped elastic snap ring 21, a tight rope 22, an isolating strip 23 and a clamping assembly, the C-shaped elastic snap ring 21 is arranged on the lower side of the core bar 1 in a damping sliding manner, a supporting block 211 is arranged on the inner side of the C-shaped elastic snap ring 21, the tight rope 22 is fixedly arranged at the lower end of the supporting block 211, the tight rope 22 slides from top to bottom to penetrate through the sheath hose 13, the isolating strip 23 is fixedly assembled inside the sheath hose 13, the isolating strip 23 is positioned between the stay cable 15 and the second stay cable 15, and the clamping assembly is arranged between the tight rope 22 and the lower side of the sheath hose 13;

the clamping assembly comprises two claw hooks 24 and two rotating rods 25, a mounting ring 26 is fixedly arranged at the lower end of the sheath hose 13, the two claw hooks 24 are all rotatably arranged at the lower end of the mounting ring 26, the lower ends of the two claw hooks 24 are mutually buckled, one ends of the two rotating rods 25 are all rotatably arranged at the lower end of the compact rope 22, the other ends of the two rotating rods 25 are respectively rotatably arranged at the opposite ends of the two claw hooks 24, and a reset piece is arranged between the two claw hooks 24.

The existing coil sleeve device is used in combination with an endoscope, and the polyp is removed in the alimentary canal by utilizing the high-frequency current output by the electrode 12, which is the prior art and is not described more; the C-shaped elastic clamping ring 21 has elasticity, and when the C-shaped elastic clamping ring 21 is not used, the core bar 1 is clamped towards the middle part, so that friction resistance is provided; after a doctor uses the device to cut polyp or redundant tissues through the electric coil 16, the doctor can observe the positions of the cut tissues by using a matched endoscope, then the C-shaped elastic clamping ring 21 is pushed forwards, the C-shaped elastic clamping ring 21 relieves damping limitation, so the two hook claws 24 can be opened by depending on a reset piece, then the doctor can use the two hook claws 24 to grab the cut tissues, after the doctor pushes the two hook claws 24 to the cut tissues, the C-shaped elastic clamping ring 21 is pulled towards the direction far away from the assembling wheel 11, at the moment, the tight rope 22 can pull the two rotating rods 25 to rotate, so that the two hook claws 24 are mutually buckled, the cut tissues are grabbed, and the doctor can take out the cut tissues at the moment, thereby avoiding the addition of redundant taking-out steps and improving the working efficiency of the doctor.

In the preferred embodiment, an expansion sleeve 28 is fixedly arranged between the supporting block 211 and the assembling wheel 11, the expansion sleeve 28 is sleeved outside the tight rope 22, the hook 24 and the rotating rod 25 are made of non-conductive materials, the coil 16 is woven by stainless steel wires, and the scale mark 31 is arranged outside the core rod 1.

The telescopic sleeve 28 can guide the tight rope 22 and guide the tight rope 22 outside the sheath hose 13, so that a doctor can better control the two hooks 24 to open and close when using the device, and the scale marks 31 facilitate better control precision of the doctor and are beneficial to the operation.

Example two:

as shown in fig. 5, for further optimization of the first embodiment, the restoring member is a restoring spring 27, and the restoring spring 27 is fixedly assembled between the two hooks 24.

By means of the reset elasticity of the reset spring 27, the two hooks 24 can be opened, and the two hooks 24 can be closed by pulling the C-shaped elastic snap ring 21, so that the two hooks 24 can be opened conveniently.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of the present invention.

Claims

1. Disposable electric snare, including core bar, assembly wheel, electrode and sheath hose, the assembly wheel is located the core bar lower extreme, the electrode assembly in the assembly wheel, the sheath hose assembly in assembly wheel lower extreme, its characterized in that: the core bar is provided with a sliding ring in a sliding manner, the lower end of the middle part of the sliding ring is fixedly provided with a pull rope, the lower side of the pull rope is arranged in the sheath hose in a sliding manner, the lower end of the pull rope is fixedly assembled with an electric coil, and the inner side of the core bar is also provided with a clamping mechanism;

the clamping mechanism comprises a C-shaped elastic clamping ring, a tight rope, an isolating strip and a clamping assembly, the C-shaped elastic clamping ring is arranged on the lower side of the core rod in a damping sliding mode, a supporting block is arranged on the inner side of the C-shaped elastic clamping ring, the tight rope is fixedly arranged at the lower end of the supporting block, the tight rope penetrates through the sheath hose in a sliding mode from top to bottom, the isolating strip is fixedly assembled inside the sheath hose, the isolating strip is located between the inhaul cable and the tight rope, and the clamping assembly is arranged between the tight rope and the lower side of the sheath hose;

2. The disposable electrical snare according to claim 1, wherein: the reset piece is a reset spring which is fixedly assembled between the two hook claws.

3. The disposable electrical snare according to claim 1, wherein: and a telescopic sleeve is fixedly arranged between the supporting block and the assembling wheel and sleeved outside the tight rope.

4. The disposable electrical snare according to claim 1, wherein: the hook claw and the rotating rod are made of non-conductive materials.

5. The disposable electrical snare according to claim 1, wherein: the electric coil is formed by weaving stainless steel wires.

6. The disposable electrical snare according to claim 1, wherein: and scale marks are arranged on the outer side of the core rod.