Surgical artificial stent

An artificial and surgical technology, applied in the field of stents, can solve the problems of easy slippage, poor firmness and support, and achieve the effects of reducing mass, convenient separation and ensuring stability

Inactive Publication Date: 2019-01-11
李刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing vascular stent is easy to slip in the blood vessel, and its firmness and support are poor.

Method used

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  • Surgical artificial stent
  • Surgical artificial stent
  • Surgical artificial stent

Examples

Experimental program
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Embodiment 1

[0025] An artificial bracket for surgery, comprising a plurality of annular bodies and the plurality of connecting parts for connecting the annular bodies, the connecting parts and the annular bodies are coated with a coating, and the annular body has a plurality of ring-shaped Evenly distributed circular rib beams, the connecting part has a curved connecting rod, and the end of the connecting rod has a ring buckle for connecting the ring body,

[0026] The element composition of the ring body material is (mass percentage): Cu 3.3%, Al 0.68%, Sn 0.69%, Co 0.58%, Ni0.46%, Ta 0.079%, Mo 0.058%, Cd0.057%, W 0.034%, Ce 0.033%, Fe 0.054%, In 0.028%, the balance is Ti,

[0027] The connecting parts are nickel-based alloy materials, and its element composition is (mass percentage): Mn 15.8%; Nb 12.2%; Cu5.3%; Zr 2.3%; Ta 0.83%; Y 0.24%; W 0.18%; Sr 0.067%; Co 0.038%; Ce 0.029%; Ag0.018%; the balance is Ni;

[0028] The coating includes: 1 part of zirconia, 0.42 part of tungsten car...

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PUM

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Abstract

A surgical artificial stent comprises a plurality of annular bodies and a plurality of connecting members for connecting that annular bodies, the connecting members and the annular bodies being coatedwith a coating comprising 1 part of zirconia, 0.42 part of tungsten carbide, 0.21 part of titanium diboride, 0.1 part of chromium carbide, 0.063 part of titanium nitride and 0.054 part of aluminum oxide. The coating material improves the compatibility and corrosion resistance of the scaffold and inhibits the growth of scar tissue.

Description

technical field [0001] The invention relates to an artificial bracket for surgery and belongs to the technical field of brackets. Background technique [0002] Vascular stent refers to the placement of internal stents in the diseased segment on the basis of lumen balloon expansion to support the stenotic and occluded segment of the vessel, reduce elastic recoil and reshaping of the vessel, and maintain smooth blood flow in the lumen. Some internal stents can also prevent restenosis. Mainly divided into coronary stents, cerebrovascular stents, renal artery stents, aortic stents, etc. However, the existing vascular stents are prone to slipping in blood vessels, and have poor firmness and support. Contents of the invention [0003] An artificial bracket for surgery, comprising a plurality of annular bodies and a plurality of connecting parts for connecting the annular bodies, the connecting parts and the annular bodies are coated with a coating, and the annular bodies have ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/82A61L31/02A61L31/08A61L31/14
CPCA61F2/82A61F2210/0076A61L27/04A61L27/042A61L27/047A61L27/06A61L27/306A61L27/50A61L31/022A61L31/088A61L31/14A61L2420/06
Inventor 李刚
Owner 李刚
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