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Mciro-catheter

A catheter and tube wall technology, applied in the field of medical microcatheter, can solve the problem that the performance can not fully meet the nerve intervention and other problems

Active Publication Date: 2014-03-12
MICROPORT NEUROTECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of these catheters is completely different from traditional microcatheters, and is a brand-new design, but their distal outer diameter can only be reduced to about 0.8mm, and their performance cannot fully meet the needs of nerve intervention

Method used

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Examples

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Effect test

Embodiment Construction

[0022] figure 1 is a schematic diagram showing the overall structure of a microcatheter according to a preferred embodiment of the present invention. Such as figure 1 As shown, the microcatheter 10 mainly includes a connecting piece 14 , a diffusion stress tube 13 and a tube body 12 connected in sequence from near to far. Wherein, for more convenient description, throughout this patent, the direction close to the operator during surgery is called "near", and the direction away from the operator is called "far".

[0023] Wherein, both the connector 14 and the diffusion stress tube 13 adopt known structures, and have a hollow tubular inner cavity, and the inner diameter of the inner cavity is approximately the same as the outer diameter of the diffusion stress tube 13 and the proximal end of the tube body 12 respectively. The proximal end of the diffusion stress tube 13 is inserted from the distal end of the lumen of the connector 14, and the two are bonded together by glue. ...

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Abstract

A catheter and a micro catheter (10) for nerve intervention are provided, and the catheter wall of the catheter comprises a smooth layer (23), a reinforcing layer (24) and an outer covering layer (25) in the order from inside to outside. The smooth layer (23) and the outer covering layer (25) are both made of polymer materials. The reinforcing layer (24) is a supporting layer, which is connected with the smooth layer (23) and the outer covering layer (25) respectively, so as to connect the respective layers of the catheter together. The catheter comprises a proximal portion (11) and an extension portion in the direction from the proximal end to the distal end. The reinforcing layer (24) assumes a braid structure at the proximal portion (11), and assumes a helix structure at the extension portion.

Description

technical field [0001] The invention relates to a catheter, in particular to a medical microcatheter for treating intravascular lesions through nerve intervention. Background technique [0002] Intervention therapy refers to the use of high-tech equipment of TV monitors to open a small hole in a certain part of the human body, and then use a microcatheter to penetrate into the blood vessels in the patient's body to repair, expand, and dredge the minimally invasive endovascular surgery. As an effective treatment method for many types of vascular diseases, it has achieved remarkable results. [0003] Among them, as the body of the microcatheter, its performance requirements are very high, and it needs to have sufficient flexibility, torsion resistance, tracking, support, and bending resistance, etc., to ensure that the microcatheter can move along the patient's body during the operation. The blood vessels bend, and respond to the doctor's push, pull, twist and other operation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/00A61M25/00A61M31/00A61M39/00A61L15/22A61L31/04
CPCA61M2025/0042A61M25/0045A61M25/0053A61M25/0054A61B2017/00345
Inventor 金巧蓉谢志永李雨王森向勇刚罗七一
Owner MICROPORT NEUROTECH SHANGHAI
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