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.

Date of Patent:
Sep. 30, 2025

Filed:

Sep. 09, 2022
Applicant:

Medtronic Vascular, Inc., Santa Rosa, CA (US);

Inventors:

Syamala Rani Pulugurtha, Santa Rosa, CA (US);

Jeffrey Allen, Santa Rosa, CA (US);

James Mitchell, Santa Rosa, CA (US);

Christopher Storment, Santa Rosa, CA (US);

Jill Mendelson, Santa Rosa, CA (US);

Assignee:

Medtronic Vascular, Inc., Santa Rosa, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/915 (2013.01); A61F 2/89 (2013.01); A61L 31/02 (2006.01); A61L 31/08 (2006.01); A61L 31/10 (2006.01); A61L 31/14 (2006.01); C23C 16/06 (2006.01); C23C 22/57 (2006.01); C23C 8/10 (2006.01);
U.S. Cl.
CPC ...
A61L 31/088 (2013.01); A61F 2/89 (2013.01); A61F 2/915 (2013.01); A61L 31/022 (2013.01); A61L 31/084 (2013.01); A61L 31/10 (2013.01); A61L 31/148 (2013.01); C23C 16/06 (2013.01); A61F 2002/91541 (2013.01); A61F 2002/91575 (2013.01); A61F 2210/0076 (2013.01); A61F 2230/0069 (2013.01); A61L 2420/02 (2013.01); A61L 2420/08 (2013.01);
Abstract

Biodegradable magnesium alloy implantable medical devices are protected to delay onset of corrosion, and thus biodegradability, or to corrode more uniformly. The protection allows for extended effective use of the devices while maintaining biodegradability. Examples of protective coatings include conversion coatings that at least partially remove exposed second phases from a surface of the magnesium alloy and coatings that provide a barrier between water and the surface of the magnesium alloy.


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