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Alloy material for heart stent with anti-allergy function

An alloy material and a technology for cardiac stents, which are applied in the field of cardiac stents with anti-allergic function, can solve the problems of vascular intimal hyperplasia, limited use range, and unsatisfactory vascular support performance.

Inactive Publication Date: 2019-03-01
周万芳
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Many coronary heart disease patients with severe tubular artery stenosis cannot be effectively reversed by drug treatment, and interventional therapy or thoracotomy is required. Interventional therapy can effectively solve coronary artery stenosis and reduce the risk of surgery. At present, interventional materials such as cobalt Alloys, titanium alloys, and stainless steel materials can lead to vascular intimal hyperplasia after long-term implantation in blood vessels, thereby increasing the time of late thrombosis, and biodegradable polymer materials such as polylactic acid, because their vascular support performance cannot meet the requirements, limit this type of treatment. The scope of use of materials

Method used

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  • Alloy material for heart stent with anti-allergy function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1: 0.5% Nd, 0.3% Ce, 5% W, 0.1% Mo, 2% polymer material collagen, and the rest is Mg.

Embodiment 2

[0012] Example 2: 3% Nd, 1% Ce, 8% W, 0.8% Mo, 3% polymer material chitosan, and the rest is Mg.

Embodiment 3

[0013] Example 3: 1% Nd, 0.5% Ce, 6% W, 0.3% Mo, 2% polymer material polylactic acid, and the rest is Mg.

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Abstract

The invention discloses an alloy material for a heart stent having an anti-allergic function. The alloy material is prepared from the following components in percentage by mass: 0.5 to 3% of Nd, 0.3 to 1% of Ce, 5 to 8% of W, 0.1 to 0.8% of Mo, 2 to 3% of a polymer material and the balance of Mg. The heart stent material disclosed by the invention has the anti-allergy property and is high in resistance to corrosion of organic substances and alkali.

Description

technical field [0001] The invention relates to a heart stent, in particular to a heart stent with antiallergic function. Background technique [0002] Many coronary heart disease patients with severe tubular artery stenosis cannot be effectively reversed by drug treatment, and interventional therapy or thoracotomy is required. Interventional therapy can effectively solve coronary artery stenosis and reduce the risk of surgery. At present, interventional materials such as cobalt Alloys, titanium alloys, and stainless steel materials can lead to vascular intimal hyperplasia after long-term implantation in blood vessels, thereby increasing the time of late thrombosis, while biodegradable polymer materials such as polylactic acid cannot meet the requirements for vascular support performance, which limits this type of treatment. The scope of use of the material. Contents of the invention [0003] Purpose of the invention: In order to solve the problems of the above-mentioned ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L31/06A61L31/04A61L31/02A61L31/14C22C23/00
CPCA61L31/044A61L31/022A61L31/042A61L31/06A61L31/14A61L31/148C22C23/00C08L5/08C08L67/04C08L75/04
Inventor 周万芳
Owner 周万芳
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