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A corrosion-resistant, high-strength and tough zinc alloy implant material that can be absorbed by the human body

An implant material, zinc alloy technology, applied in the field of medical materials, can solve the problems of poor corrosion resistance of magnesium alloy and inability to provide mechanical support time, and achieve the effects of avoiding pain, high toughness, and avoiding blood vessels

Active Publication Date: 2016-12-07
XIAN ADVANCED MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the corrosion resistance of magnesium alloy is very poor, it will be degraded and absorbed soon in the human body, and cannot provide enough mechanical support time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The human body absorbable zinc alloy implant material of the present invention has the following element composition and mass percentage: Ce0.1%, Mg0.5%, Ca0.1%, Cu1.5%, and the rest is Zn.

[0026] For the above constituent elements, according to the smelting and processing techniques commonly used in this field, zinc alloy materials are finally produced.

Embodiment 2

[0028] The human body absorbable zinc alloy implant material of the present invention has the following element composition and mass percentage: Ce0.001%, Mg1.5%, Ca0.001%, Cu0.01%, and the rest is Zn.

Embodiment 3

[0030] The human body absorbable zinc alloy implant material of the present invention has the following element composition and mass percentage: Ce1.5%, Mg0.001%, Ca1.5%, Cu2%, and the rest is Zn.

[0031] For the constituent elements of the zinc alloy materials described in the above embodiments 1-3, zinc alloy materials are finally made according to the commonly used smelting and processing techniques in this field; then these materials can be prepared into absorbable medical products by conventional methods implant.

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Abstract

The invention relates to a corrosion-resistant, high-strength and tough zinc alloy implant material that can be absorbed by the human body. The element components and mass percentages are: Ce0.001%-2%, Mg0.001%-2%, Ca0.001%-2% %, Cu0.01% to 3%, and the rest is Zn. The zinc alloy material is prepared into absorbable medical implants, especially vascular stents, orthopedic implants (bone nails or bone plates, etc.) by conventional methods in the art. The zinc alloy material created by the invention has high corrosion resistance and high strength and toughness, and the medical implant prepared by it can be absorbed by the human body without side effects.

Description

technical field [0001] The invention relates to a corrosion-resistant, high-strength and tough zinc alloy implant material that can be absorbed by human body, and belongs to the technical field of medical materials. Background technique [0002] Vascular stent is an implantable wire mesh device used to treat coronary heart disease and other vascular diseases, with a length of about 8-23 mm and a diameter of about 2.5-5 mm. The current mainstream drug-eluting stent (Drug Eluting Stent, DES) provides mechanical support for stenotic blood vessels by expandable cobalt-chromium alloy wire mesh. Lymphocyte growth reduces inflammatory and immune responses. For a long time, Chinese patients have not understood the product of stents, because the incidence of coronary heart disease in my country was extremely low in the past. With the increase of national income year by year, the improvement of people's living standards and the change of diet structure, coronary heart disease has be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L31/02A61L31/14C22C18/02C22C18/00
CPCA61L31/02C22C18/00C22C18/02A61L27/047A61L27/58A61L31/148A61L27/50A61L31/022A61L31/14A61L2430/02
Inventor 周功耀屈功奇宫海波
Owner XIAN ADVANCED MEDICAL TECH
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