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US 12,162,807 B2Granted
Methods of surface functionalization of zirconia-toughened alumina with silicon nitride
AssigneeSINTX Technologies, Inc.
InventorsBryan J. McEntire, Bhajanjit Singh Bal, Ryan M. Bock
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Abstract
Disclosed herein are methods for functionalizing the surface of a biomedical implant. The biomedical implant may be a zirconia-toughened alumina implant surface functionalized with silicon nitride powder for promoting osteogenesis.
Claims18
A method of functionalizing the surface of a biomedical implant comprising:
- providing the biomedical implant;
- directing a laser to a surface of the biomedical implant, wherein the laser produces a grid of equidistant, patterned wells;
- and
- filling the grid of equidistant, patterned wells with a powder mixture comprising a bioglass and silicon nitride, wherein the silicon nitride is present in the powder mixture at about 5 mol. % to about 10 mol. %.
1 more element
A method of functionalizing the surface of a biomedical implant comprising:
- providing the biomedical implant;
- applying a layer of silicon nitride powder on a water-wet surface of the biomedical implant;
- pulsing a laser on the layer of silicon nitride to sinter the silicon nitride;
- and
- repeating the applying and pulsing steps until the sintered silicon nitride layer has a thickness of about 10 μm to about 20 μm.
2 more elements
Dependencies are inferred from the claim text.