KIND OF ABSORBABLE HIGH STRENGTH AND TOUGHNESS CORROSION-RESISTANT ZINC ALLOY IMPLANT MATERIAL FOR HUMAN BODY

Abstract

A kind of absorbable high strength & toughness corrosion-resistant zinc alloy implant material for human body, the elemental constituent and quality percent: Ce0.001%-2%, Mg0.001%-2%, Ca0.001%-2%, Cu0.01%-3%, others are Zn. Above-mentioned zinc alloy material is prepared as absorbable medical implant by using conventional method in this field, especially for intravascular stent, orthopedic implants (bone nail or plate etc.). Zinc alloy material created by this invention has high corrosion-resistant and high strength & toughness, the medical implant prepared by this can be absorbed by the body without side effects.

Claims

1-7. (canceled)

8. An absorbable high strength and toughness corrosion-resistant zinc alloy implant material for human body, wherein an elemental constituent and percent by mass of the elemental constituent in the zinc alloy implant material are as follows: Ce in a range of from 0.001% to 2%, Mg in a range of from 0.001% to 2%, Ca in a range of from 0.001% to 2% Cu in a range of from 0.01% to 3% and Zn is the remaining content.

9. The zinc alloy implant material according to claim 8, wherein the percent by mass Ce is in a range of from 0.001% to 1.5%, the percent by mass Mg is in a range of from 0.002% to 1.5%, the percent by mass Ca is in a range of from 0.001% to 1.5%, the percent by mass Cu is in a range of from 0.05% to 2%, and Zn is the remaining content.

10. The zinc alloy implant material according to claim 9, wherein the percent by mass Ce is 0.1%, the percent by mass Mg is 0.5%, the percent by mass Ca is 0.1%, and the percent by mass Cu is 1.5%.

11. The zinc alloy implant material according to claim 8, wherein a purity of the elemental constituents used to form the zinc alloy implant material is as follows: Zn purity is greater than or equal to 99.999%, Ce purity is greater than or equal to 99.99%, Mg purity is greater than equal to 99.99%, Ca purity is greater than or equal to 99.99%, and Cu purity is greater than or equal to 99.99%.

12. The zinc alloy implant material according to claim 8, wherein total inclusion in the zinc alloy implant material is less than 0.1% except Zn, Ce, Mg, Ca and Cu.

13. The zinc alloy implant material according to claim 12, wherein zinc allay implant material is in the shape of an absorbable medical implant, wherein the absorbable medical implant is selected from the group consisting, of an intravascular stent and orthopedic implants.

14. The zinc alloy implant material stated in claim 8, wherein the zinc allay implant material is in the shape of an orthopedic implant, wherein orthopedic implant is a bone nail or plate.

Description

SPECIFIC EXAMPLES

[0020] The following is specific examples of this invention, which are used to state technical scheme of problems in application document and help technicians understand the invention, but the implementation of technical scheme is not limited to these examples.

Example 1

[0021] A kind of absorbable zinc-alloy implant material by human body, and elemental constituent and quality percent is: Ce0.1%, Mg0.5%, Ca0.1%, Cu1.5%, others are Zn.

[0022] Above components are prepared as zinc-alloy material finally according to common smelting and processing process in the field.

Example 2

[0023] A kind of absorbable zinc-alloy implant material by human body, and elemental constituent and quality percent is: Ce0.001%, Mg1.5%, Ca0.001%, Cu0.01%, others are Zn.

Example 3

[0024] A kind of absorbable zinc-alloy implant material by human body, and elemental constituent and quality percent is: Ce1.5%, Mg0.001%, Ca1.5%, Cu2%, others are Zn.

[0025] Components for above zinc-alloy material in example 1-3 are prepared as zinc-alloy material finally according to common smelting and processing process in the field; then prepared as absorbable medical implant by these material and conventional method.