Title:
SURFACE MODIFICATION METHOD FOR DEGRADABLE PURE MAGNESIUM OR MAGNESIUM ALLOY, AND PURE MAGNESIUM OR MAGNESIUM ALLOY MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/216521
Kind Code:
A1
Abstract:
The embodiments of the present invention disclose a surface modification method for degradable pure magnesium or a degradable magnesium alloy, and a pure magnesium or magnesium alloy material, so as to solve the technical problems whereby an existing medical pure magnesium or magnesium alloy material is not resistant to corrosion and prone to bacterial infection after being implanted into a human body. The method in the embodiments of the present invention comprises the following steps: S1, pretreating pure magnesium or a magnesium alloy; S2, subjecting the pure magnesium or magnesium alloy to ion implantation by means of a metal ion implanter provided with a zinc cathode arc source; S3, subjecting the pure magnesium or magnesium alloy obtained after step S2 is completed to ion implantation by means of a metal ion implanter provided with a copper cathode arc source; S4, subjecting the pure magnesium or magnesium alloy obtained after step S3 is completed to oxygen injection by means of a gas injection machine; and S5, forming a coating, which contains copper and zinc, on the surface of the pure magnesium or magnesium alloy.
Inventors:
LI YANGDE (CN)
LI WEIRONG (CN)
TAN LILI (CN)
TANG GUOPING (CN)
ZENG CHAOHUI (CN)
CHEN SHANSHAN (CN)
GUAN RENGUO (CN)
LI CHUNHUA (CN)
LI YANFANG (CN)
GUO HAORAN (CN)
DUAN YU (CN)
LI WEIRONG (CN)
TAN LILI (CN)
TANG GUOPING (CN)
ZENG CHAOHUI (CN)
CHEN SHANSHAN (CN)
GUAN RENGUO (CN)
LI CHUNHUA (CN)
LI YANFANG (CN)
GUO HAORAN (CN)
DUAN YU (CN)
Application Number:
PCT/CN2022/128189
Publication Date:
November 16, 2023
Filing Date:
October 28, 2022
Export Citation:
Assignee:
DONGGUAN EONTEC CO LTD (CN)
DONGGUAN MEI AN MEDICAL EQUIPMENT CO LTD (CN)
DONGGUAN MEI AN MEDICAL EQUIPMENT CO LTD (CN)
International Classes:
C23C14/48; A61L27/04; A61L27/30; A61L27/54; A61L27/58; C23C14/16; C23C14/58
Foreign References:
| CN109666892A | 2019-04-23 | |||
| CN112609068A | 2021-04-06 | |||
| CN109652771A | 2019-04-19 | |||
| JP2005060786A | 2005-03-10 |
Other References:
GAO ZHI-HENG: "Corrosion Characteristics and Protection Techniques for Mg Alloys", SURFACE TECHNOLOGY., vol. 45, no. 3, 1 March 2016 (2016-03-01), pages 169 - 177, XP093107568, DOI: 10.16490/j.cnki.issn.1001-3660.2016.03.028
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
Download PDF:
Previous Patent: ASSISTED VEHICLE POSITIONING METHOD AND APPARATUS
Next Patent: FAN YAW HYDRAULIC BRAKE AND BRAKING SYSTEM
Next Patent: FAN YAW HYDRAULIC BRAKE AND BRAKING SYSTEM