Patent · US Active

Medical implant comprising a biodegradable magnesium-based alloy and method for its manufacture

US9050389B2 · kind B2 · utility

1Cited by

0References

37Claims

0Family size

Assignee

DePuy Synthes Products, Inc. · US

Inventors

Peter Kurze · Pulsnitz, DE
Thomas Imwinkelried · Flurlingen, CH
Stefan Beck · Reno, US
Dora Banerjee · Kerpen, DE
Tamara Schwarz · Bergheim, DE

Key dates

Filing date	Dec 20, 2011
Grant date	Jun 9, 2015
Priority date	—
Expiry date	Mar 11, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31678
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A medical implant comprises a biodegradable magnesium-based alloy of which at least a part of its surface layer comprises a magnesium carbonate. A method for the manufacture of a biocompatible, corrosion-inhibiting protective surface layer on a medical implant comprising a magnesium-based alloy, comprises: providing an implant comprising a magnesium-based alloy to be coated; placing the implant into a reactor chamber; exposing at least part of the surface of said implant to an atmosphere comprising humid carbon dioxide to produce a coating on the surface of the implant comprising a magnesium carbonate of the formula x MgCO3.y Mg (OH)2, whereby x+y=1; removing the implant from the reactor chamber; and drying the surface of the implant.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.