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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12534783 B1

PDFFull Text
Date of Patent:
Jan. 27, 2026

Filed:

Nov. 30, 2022

Biodegradable magnesium alloy without rare earth elements, preparation method and use thereof

Applicants:

Shanghai Int Medical Instruments Co., Ltd., Shanghai, CN;

Shanghai Pumei Medical Instruments Co., Ltd., Jiangqiao Town, CN;

Inventors:

Dongke Liang, Shanghai, CN;

Zheng Zhao, Shanghai, CN;

Lei Shang, Shanghai, CN;

Tao Li, Shanghai, CN;

Sen Lin, Shanghai, CN;

Assignees:

Shanghai INT Medical Instruments Co., Ltd., Shanghai, CN;

Shanghai PuMei Medical Instruments Co., Ltd., Jiangqiao Town, CN;

Attorney:

DINSMORE & SHOHL LLP

Primary Examiner:

John A Hevey

Int. Cl.
CPC ...
C22C 23/04 (2006.01); A61L 27/04 (2006.01); A61L 27/58 (2006.01); A61L 31/02 (2006.01); A61L 31/14 (2006.01); B21C 23/00 (2006.01); B22D 1/00 (2006.01); B22D 21/00 (2006.01); C22C 1/02 (2006.01); C22F 1/06 (2006.01);
U.S. Cl.
CPC ...
C22C 23/04 (2013.01); A61L 27/047 (2013.01); A61L 27/58 (2013.01); A61L 31/022 (2013.01); A61L 31/148 (2013.01); B21C 23/002 (2013.01); B22D 1/002 (2013.01); B22D 21/007 (2013.01); C22C 1/02 (2013.01); C22F 1/06 (2013.01);
Abstract

The present application provides a biodegradable magnesium alloy without rare earth elements. The magnesium alloy comprises the following elements in percentage by mass: Zn 1.0-5.0%; Mn 0.1-1.0%; Ca 0.1-1.0%; Sr 0.1-1.0%; Sn 0.1-3.0%; Zr 0.1-0.8%; and Mg balance. The impurity in the magnesium alloy does not contain rare earth elements. The present application also provides a method for preparing the above biodegradable magnesium alloy and use in the preparation of medical devices. In the present application, Mg is used as the main components and mixed with a specific proportion of Zn, Ca and Mn to prepare the alloy. The biodegradable magnesium alloy of the present application has a controllable degradation rate and strong mechanical strength, and there are no harmful elements to a human body, and the degradation of the alloy in the human body will not affect human body.

Find Patent Forward Citations

Liang, Dongke. (2026). Biodegradable magnesium alloy without rare earth elements, preparation method and use thereof (U.S. Patent No. 12534783). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12534783

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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