Patent ID: 11952669
Assignee: TECH MET, INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 5:
6. A composition for etching a nanoscale geometry into a surface of a body implantable device formed of a metal or metal alloy, the composition comprising:
0.5N-3.5N hydrofluoric acid (HF) and 0.1N-3.0N nitric acid (HNO3), and
component metals of the body implantable device, wherein the metal or metal alloy of the body implantable device comprises a nickel-chromium-molybdenum alloy, and the composition comprises: 3.75 g/l-90 g/l of each of chromium (Cr), and molybdenum (Mo), and up to 225 g/l iron (Fe),
wherein the body implantable device is a bone-contacting device and the nanoscale geometry enhances osseointegration when the bone-contacting device is implanted adjacent living bone, or
wherein the body implantable device is a tissue-contacting device and the nanoscale geometry enhances endothelial attachment and proliferation when the tissue-contacting device is implanted adjacent tissue.