A design method for guidewire outlet of interventional therapy catheter

A design method and interventional therapy technology, applied in stents and other directions, can solve the problems of large workload, low production efficiency, complex manufacturing process, etc., and achieve the effects of high production efficiency, low production cost, and reduced production process.

Active Publication Date: 2017-06-20
JW MEDICAL SYSTEMS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design method of the guide wire outlet requires secondary welding, which has the disadvantages of heavy workload, complicated manufacturing process and low production efficiency

Method used

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  • A design method for guidewire outlet of interventional therapy catheter
  • A design method for guidewire outlet of interventional therapy catheter
  • A design method for guidewire outlet of interventional therapy catheter

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Experimental program
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Effect test

Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as figure 1 As shown, an interventional treatment catheter guide wire outlet structure includes an expansion balloon 102, an inner lumen tube 104, an outer lumen tube 103, and a transition tube 107; the upper end of the expansion balloon 102 is welded to the catheter tip 101, and the lower end is sleeved in the outer lumen on the tube 103; the inner lumen tube 104 is inserted in the outer lumen tube 103 and the expansion balloon 102;

[0021] The lower end of the outer cavity tube 103 is sleeved on the transition tube 107; the lower end of the transition tube 107 is welded to the hypo tube 108; the upper end of the hypo tube 108 is provided with a power support rod 106; the power support rod 106 is inserted in the transition tube 107 inside of the lower end;

[0022] The lower end of the inner lumen tube 104 is obliquely...

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Abstract

The invention discloses an interventional treatment catheter guide wire outlet designing method. The method includes that an inner cavity tube extends out from one side of the lower end of an outer cavity tube, and a transition tube after being treated is inserted from the other side of the lower end of the outer cavity tube; a protecting guide wire is inserted below the inner cavity tube to ensure a portion, in the outer cavity tube, of the inner cavity tube to continue to be maintained unobstructed; a position where the inner cavity tube, the outer cavity tube and the transition tube are combined is welded to enable the inner wall of the outer cavity tube, the outer wall of the inner cavity tube and the outer wall of the transition tube at the combining position to be bonded together seamlessly; the protecting guide wire in the inner cavity tube is drawn out, and the inner cavity tube is bent and stretched at the welding and combining position and then smoothly cut along the combining position of the outer cavity tube to form a guide wire outlet. By using the method, production processes are reduced, and passing performance of a catheter and the guide wire, performance, in guiding the catheter, of the guide wire and catheter pushing performance are improved. The method has the advantages of high production efficiency and low production cost.

Description

technical field [0001] The invention relates to a design method for a guide wire outlet, in particular to a design method for an interventional treatment catheter guide wire outlet. Background technique [0002] In cardiovascular interventional surgery, the drug stent is delivered to the stenosis of the blood vessel through the guide wire-guided balloon catheter delivery system, and then the stent is expanded to expand the lesion, which can effectively solve the narrowing problem of the patient's diseased blood vessel. During the operation, the guide wire is penetrated from the tip of the balloon catheter delivery system and passed out from the outlet of the guide wire through the lumen tube, which acts as a track for the catheter delivery system of the entire operation. The traditional guide wire outlet design method is to punch a hole on one side of the outer lumen tube, insert the inner lumen tube obliquely into the outer lumen tube from the hole punched in the outer lume...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/958
CPCA61F2/958
Inventor 王翔宇刘宝瑞李海宁
Owner JW MEDICAL SYSTEMS LTD
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