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Traction device

The technology of a traction device and a traction part is applied in the field of medical devices, which can solve the problems of large space occupied by springs, obstruct the field of view of operation, and complicated operation, and achieve the effects of shortening operation time, preventing heat conduction, and ensuring operation safety.

Pending Publication Date: 2020-01-31
MICRO TECH (NANJING) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is derived from the metal clip elastic ring combined with the traction method. The elastic ring is replaced by a spring in order to obtain greater flexibility to adapt to the ESD resection of large and superficial early colon tumors. However, the spring has no effect after cutting. Tension, and the spring occupies a large space, and cannot enter the endoscopic biopsy channel, but the endoscope needs to be taken out during the operation, clamped in vitro with a metal clip extending out of the endoscopic biopsy channel, and then sent into the body to reach the target position During the process, because it is exposed at the far end of the biopsy channel, it is easy to cause harm to the human body, and the use of this method is limited.
[0011] Magnetic anchor traction technology requires special equipment, such as equipped with a standard retractable arm, which constantly changes the direction of traction outside the body, and the operation is cumbersome. In addition, if the number of magnets is large during the operation, the field of view of the operation will be hindered

Method used

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] Hereinafter, the end of the endoscope close to the operator is defined as the proximal end, and the end far from the operator is defined as the distal end.

[0042] like Figures 1A-1D as well as Figure 8 are schematic diagrams of different types of closed traction structures. Figure 1A It is a schematic diagram of the traction part 1 containing two ring-shaped closed traction structures, and the two ring structures are closed and connected to form the traction part 1 of the closed traction structure. Figure 1B and 1C It is a schematic diagram that the traction part 1 has three annular...

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Abstract

A traction device comprises a clamp part and a traction part, wherein the traction part comprises a closed traction structure made of an elastic material, the clamp part comprises a clamp body and a clamp arm, the clamp body can penetrate through a biopsy channel of an endoscope, and the clamp arm can clamp the closed traction structure.

Description

technical field [0001] The invention relates to a traction device in the field of medical equipment, in particular to a traction device with good elasticity, which can achieve traction for cutting lesions only by relying on the elastic force of the traction part without external force, and fully expose the surgical field of view; at the same time, it can pull It is a traction device that shrinks the large wound surface to facilitate the further clamping of the wound surface. [0002] technical background [0003] EMR (endoscopic mucosal resection, EMR) was first used clinically in Japan for the treatment of early gastric cancer. Before it was introduced in Japan, gastrectomy was the only treatment for early gastric cancer. At present, this treatment method has been widely used. Endoscopic submucosal dissection (ESD) refers to the use of a modified needle knife to directly peel off the mucosa from the submucosa under the endoscope. It has good performance and expands the indi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/02A61B10/04
CPCA61B17/0218A61B10/04A61B2017/0225A61B2017/0034A61B2017/00269A61B17/00234A61B17/0206A61B17/0293A61B2017/00862A61B2017/0287
Inventor 冀明双建军沈正华李常青冷德嵘刘春俊胡洁
Owner MICRO TECH (NANJING) CO LTD