Patent ID: 9050389
Filing Date: 2015-06-09
Classification: A61B,A61F,A61L,C01F,Y10T

Abstract:
1. A method for the manufacture of a biocompatible, corrosion-inhibiting protective surface layer on a medical implant comprising a magnesium-based alloy, the method comprising: placing an implant comprising a magnesium-based alloy into a reactor chamber; exposing at least part of a surface of said implant to an atmosphere comprising humid carbon dioxide, wherein the concentration of the carbon dioxide is at least 50%, and wherein the atmosphere is modified by the addition of gaseous hydrocarbons comprising methane or propane, to produce a coating on the surface of the implant comprising a magnesium carbonate of the formula x MgCO removing the implant from the reactor chamber; and drying the surface of the implant.