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ESD stripping endoloop

A ferrule and handle technology, which is applied to surgical cutting instruments, endoscopic cutting instruments, etc., can solve the problems of complicated and expensive devices, and achieve the effects of reducing costs, reducing operation steps and time, and being convenient to operate.

Inactive Publication Date: 2019-02-19
HARBIN MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an ESD stripping sleeve cutter, which solves the problem of complicated and expensive existing devices

Method used

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  • ESD stripping endoloop
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  • ESD stripping endoloop

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] Such as figure 1 , figure 2 , image 3 Shown are the schematic diagrams of the ESD peeling sleeve cutter provided by the invention in an open state, a schematic diagram in a closed state, and a partial schematic diagram of a rotating structure. As can be seen from the figure, it includes:

[0028] The handle 8 is preferably made of medical-grade acrylonitrile-styrene-butadiene copolymer, and one end is a hand-held end, which is ring-shaped to facilitate hand-held operation;

[0029] The outer tube 4 is preferably made of polytetrafluoroethylene, and one end thereof is connected to the outside of the other end of the handle 8 through a rotating part (for example: a bearing, or a slot and a snap ring);

[0030] The slider 7 is preferably made of medical-grade acrylonitrile-styrene-butadiene copolymer, which is non-rotatably sleeved outside the handle 8 and can slide along the length of the handle 8. The slider 7 is provided with There are electrodes 6;

[0031] The i...

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Abstract

The invention provides an ESD stripping endoloop. The ESD stripping endoloop comprises a handle, an outer tube, a sliding block, an inner tube and two conductive wires. One end of the handle is a handheld end, one end of the outer tube is connected with the outer side of the other end of the handle through a rotary component, the sliding block sleeves the handle and cannot rotate, and the slidingblock can slide in the length direction of the handle. The inner tube is arranged in the outer tube, and one end of the inner tube stretches into the handle, and is fixedly connected with the slidingblock. The two conductive wires are parallel and are fixed into a whole and arranged in the inner tube, one end of each conductive wire and a loop (with a metal spherical point) are in closed connection, and the other ends of the conductive wires stretch into the sliding block and are connected with an electrode to form an electric circuit; the loop is made from a material with a shape keeping capacity, the loop can be expanded to be annular after being pushed out of the outer tube, and the loop can be closed after retracting into the outer tube. The loop has an electric cutting function in cooperation with power supplied by an electrode, and a diseased region can be smoothly stripped and held to be resected.

Description

technical field [0001] The invention relates to a stripping sleeve cutter for endoscopic mucosal dissection (ESD). Background technique [0002] Endoscopic submucosal dissection (ESD) is a new endoscopic treatment that has emerged in recent years, and it is also a technique with broad clinical application prospects. It is mostly used to remove lesions with a base area larger than 2 cm, allowing more Early digestive tract cancer and other lesions can be completely removed under endoscopy at one time, eliminating the pain of open surgery and the removal of organs. [0003] Compared with laparotomy and previous endoscopic treatment methods such as EMR, ESD has the advantages of less trauma, patients can receive multiple treatments for multiple parts, and doctors can obtain complete histopathological specimens for analysis. [0004] However, ESD uses many and expensive instruments, and the stripping process takes a long time. It has been reported that after the lesion has been...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/3205
CPCA61B17/320016A61B17/32056
Inventor 张学彦韩雪莹
Owner HARBIN MEDICAL UNIVERSITY
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