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Microcatheter

A technology of microcatheter and catheter body, applied in the field of microcatheter, can solve problems such as the inability of microcatheter to help, the arrival of guide wire, and the technical problems affecting interventional surgery, and achieve the effect of improving traversability and improving torque control force.

Pending Publication Date: 2018-09-11
ORBUSNEICH MEDICAL SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problem that the microcatheter in the prior art discussed above cannot help the guide wire reach the bifurcation lesion in the coronary artery and affect the normal operation of the interventional operation, it provides an improved microcatheter with side branch access capability

Method used

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Embodiment Construction

[0057] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different embodiments without departing from the scope of the present invention, and that the description and illustrations therein are illustrative in nature and not limiting. this invention.

[0058]In the following, the present invention will be described in detail and specifically through specific examples, so as to better understand the present invention, but the following examples do not limit the scope of the present invention. In addition, when describing the orientation in the present invention, the direction close to the operator during the operation is defined as "near", and the direction away from the operator is defined as "far".

[0059] refer to figure 1 As shown, this embodiment provides a microcatheter 1 with a tubular structure...

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Abstract

The invention discloses a microcatheter of a tubular structure. The microcatheter comprises a catheter body and a tip end at the far end of the catheter body. The catheter body comprises an inner layer with a hollow tube cavity, a tubular middle layer wrapping the outer side of the inner layer, and a tubular outer layer wrapping the outer side of the middle layer, wherein the middle layer comprises a spring layer and a woven fabric, the woven fabric longitudinally extends on one part of the spring layer, and the portion, not wrapped by the woven fabric, of the spring layer is bent by a certaindegree along the longitudinal axis of the catheter body. The catheter body of the microcatheter is of a multi-layer structure, the woven fabric only wraps the near end of the spring layer, and the portion, not wrapped by the woven fabric, of the spring layer can be bent by a corresponding degree so as to meet the angle between a coronary artery branch and a main branch, so it is ensured that themicrocatheter reaches the lesion of the coronary artery branch.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a microcatheter that can be bent to approach side branches. Background technique [0002] Clinically, in order to improve the success rate of guide wire passage in interventional surgery, it is usually necessary to use microcatheter and guide wire together. Among them, the microcatheter can provide support for the guide wire and provide a channel for the guide wire to pass through the blood vessel. [0003] According to the statistics of the existing interventional treatment cases, it is found that bifurcation lesions are relatively common, and they mainly occur in the main branch and / or branch of the coronary artery. The branches of the coronary arteries are the bifurcations that appear at the ends of the main branches, and there are bifurcation angles of different sizes between the two. After the existing microcatheter enters the main branch of the coronary artery, it cannot sm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/088A61M25/14A61M25/06A61M25/01
CPCA61M25/0045A61M25/0053A61M25/008A61M25/01A61M25/0662A61M2025/0035A61M2025/0042A61M25/005A61M25/0054A61M25/0144A61M25/0021A61M25/06
Inventor 郭莉侠张鹏涛
Owner ORBUSNEICH MEDICAL SHENZHEN CO LTD
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