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Method for cutting braided wires in braided reinforcement tube

A cutting method and braided wire technology, applied in the direction of catheters, etc., can solve the problems of difficult operation, loose braided wire, difficult installation, etc., and achieve the effect of convenient operation and ensuring normal function.

Pending Publication Date: 2022-08-02
CHANGZHOU KEYNEUT MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the existing cutting methods is to cut the braided tube to a preset length before installation, which is convenient for cutting operation, but it will cause the braided wire in the braided tube to loosen, making subsequent installation difficult; After installing the braided tube on the outside of the PTFE etched tube, the braided tube is cut. This method is difficult to operate and is easy to cut the PTFE etched tube.

Method used

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  • Method for cutting braided wires in braided reinforcement tube
  • Method for cutting braided wires in braided reinforcement tube
  • Method for cutting braided wires in braided reinforcement tube

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Embodiment Construction

[0027] In order to describe the technical solutions of the above invention in more detail, specific embodiments are listed below to prove the technical effect; it should be emphasized that these embodiments are used to illustrate the present invention and not limit the scope of the present invention.

[0028] The cutting method of the braided wire in the braided reinforcing tube provided by the present invention, such as Figure 1 to Figure 4 shown, including the following steps:

[0029] Step 1: Insert the entire metal mandrel 10 into the PTFE etched tube 20, and cover the outer side of the PTFE etched tube 20 with a metal cutting liner 30 from the right end of the PTFE etched tube 20. The right end of the metal mandrel 10 is looped on the outer wall of the PTFE etched tube 20; the outer side of the PTFE etched tube 20 and the metal cutting liner 30 is covered with a braided layer 40, the braided layer 40 Cover the entirety of the PTFE etched tube 20 and the metal cut liner ...

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Abstract

The invention relates to a method for cutting braided wires in a braided reinforcing tube, which comprises the following steps of: inserting a metal mandrel into a polytetrafluoroethylene (PTFE) etching tube, sleeving a metal cutting lining on the outer side of the PTFE etching tube, and sleeving a braided layer on the outer sides of the PTFE etching tube and the metal cutting lining; sleeving a developing ring from one end of the braid layer; sleeving an annular self-locking chuck from one end of the braid layer, moving the annular self-locking chuck to be in contact with one side of the developing ring, and rotating the annular self-locking chuck to lock the braid layer; cutting the weaving wires on the outer wall of the metal cutting lining; the metal cutting lining is removed, the developing ring is shifted towards the side away from the annular self-locking chuck till the notch of the weaving wire is covered with the developing ring, and the developing ring is pre-pressed; and the annular self-locking chuck is loosened and removed, and the developing ring is forged and pressed. Cutting of the braided tube and installation of the developing ring can be achieved, and operation is easy.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a method for cutting braided wires in a braided reinforcing tube. Background technique [0002] At present, braided reinforced tubes have been widely used in intravascular or non-intravascular medical catheters, and their structures include PTFE (polytetrafluoroethylene) etched tubes, braided tubes and outer wall tubes from inside to outside. developing ring. The braided tube in the braided reinforcing tube is usually braided by metal wires, and the braided metal wires overlap with the developing ring, and both need to be cut to remove excess braided wires. In the existing cutting methods, one is to cut the braided tube to a preset length before installation. This method is convenient for cutting operation, but will cause the braided wire in the braided tube to loosen, making subsequent installation difficult; the other is to cut the braided tube to a preset length. Aft...

Claims

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Application Information

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IPC IPC(8): A61M25/00
CPCA61M25/0009A61M25/0045
Inventor 韩许朱君宋杰邱建
Owner CHANGZHOU KEYNEUT MEDICAL TECH CO LTD
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