Surface modification of medical implants

Details Surface modification of medical implants Surface modification of medical implants

A - Human Necessities

61

L

A61L 27/00 (2006.01) A61F 2/30 (2006.01)

Patent

CA 2243069

A method of obtaining a porous titanium surface suitable for medical implants is provided. The titanium surface is exposed to a plasma comprising a reactive plasma gas, the reactive plasma gas comprising an active etching species and a sputtering gas. The plasma conditions are effective to modify the titanium surface and provide surface porosity. The plasma conditions are effective to non-uniformly etch and sputter the titanium surface.

La présente invention concerne un procédé d'obtention d'une surface poreuse de titane convenant aux implants médicaux. Le procédé consiste à exposer la surface de titane à un plasma constitué d'un gaz de plasma réactif, lui-même constitué d'une espèce d'attaque chimique active et d'un gaz de pulvérisation cathodique. L'état du plasma permet de modifier la surface du titane et de lui conférer une porosité superficielle. L'état du plasma permet ainsi d'attaquer chimiquement la surface de titane et d'y effectuer une pulvérisation cathodique.

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