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Double-guide wire detaching system for coils

A spring coil and guide wire technology, applied in the field of the double guide wire release system of the spring coil and the mechanical release method, can solve problems such as abnormal movement of the spring coil, and achieve the effect of reducing processing and efficient release.

Pending Publication Date: 2020-02-28
SHANGHAI ACHIEVA MEDICAL SUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a mechanical release method of double guide wires, reduce the force required for release through a unique connection method, and reduce the influence of release force on the spring coil through the cooperation of double guide wires, so as to solve the problem of mechanical release of the spring coil The problem of the abnormal movement of the spring coil when it is released

Method used

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  • Double-guide wire detaching system for coils
  • Double-guide wire detaching system for coils
  • Double-guide wire detaching system for coils

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Embodiment Construction

[0014] 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.

[0015] Such as figure 1 — Figure 4 As shown, a coil double guide wire release system includes a guide wire, and the guide wire includes a delivery guide wire 1 and a release guide wire 2, and the release system also includes a coil 3 and a polymer plastic sleeve 4. The release guide wire 2 passes through the release button 5 at the proximal end of the coil and abuts against the upper surface of the polymer plastic sleeve 4, and the delivery guide wire 1 abuts with the release button 5 at the proximal end of the coil.

[0016] The relevant dimensions are described below:

[0017] The end surface diameter of the distal end of the release guide wire is 0.04 mm to 0.05 mm, the end surface diameter of the distal end of the delivery guide wire is 0.1 mm to 0.15 mm, t...

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PUM

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Abstract

The invention relates to a mechanical releasing mode in the field of intracranial coils, in particular to a double-guide wire detaching system for coils, which comprises guide wires, including a conveying guide wire and a detaching guide wire; the detaching system further comprises a coil and a high-molecular plastic sleeve, the detaching guide wire penetrates a detaching fastener at the proximalend of the coil to abut against the high-molecular plastic sleeve, and the conveying guide wire abuts against the detaching fastener at the proximal end of the coil. According to a novel detaching mode for coils provided by the invention, unique double-guide wire mechanical cooperation enables detaching to be achieved just by withdrawing the detaching guide wire during detaching, and more stable and efficient detaching can be achieved at the premise of reducing processing and assembling difficulty of parts.

Description

technical field [0001] The invention relates to a mechanical release method in the field of intracranial coils, in particular to a coil double guide wire release system. Background technique [0002] Aneurysm is the persistent expansion of localized arterial segments caused by lesions or injuries of the arterial wall. It is a common vascular disease. If it is not treated in time, it may lead to rupture of the aneurysm and bleeding of the arteries, which will seriously harm the Patient's life safety. The goal of aneurysm treatment is to reduce the risk of aneurysm rupture. At present, aneurysm embolization has gradually become an important method for aneurysm treatment. The mechanical release coils used in clinical practice are all single-guide wire release methods. Rotating the guide wire or the supporting polymer tube, such operations will cause abnormal movement of the coil, increasing the risk of aneurysm rupture and surgical failure. Contents of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12
CPCA61B17/12031A61B17/12113A61B17/12159A61B17/1214A61B2017/12054
Inventor 王军陈剑锋张一叶萍
Owner SHANGHAI ACHIEVA MEDICAL SUZHOU CO LTD
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