Composition and method for creating nanoscale surface geometry on a cobalt chromium implantable device

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United States of America Patent

PATENT NO 11932947
APP PUB NO 20210062347A1
SERIAL NO

17005884

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Abstract

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Compositions and methods for etching an implantable device having a cobalt chrome surface are disclosed. The compositions generally include at least two mineral acids, iron (Fe), and certain component metals of the cobalt chrome to be etched. For example, when etching a cobalt chromium molybdenum alloy, the metals may include chromium (Cr), molybdenum (Mo), and optionally, cobalt (Co). The at least two mineral acids may include hydrochloric acid (HCl), nitric acid (HNO3), and hydrofluoric acid (HF). Alternatively, the composition may be an electrolyte composition useful for electrochemical etching of the implantable device. These compositions and methods may generate nanoscale geometry on the surface of the implantable device to provide implants with improved osseointegration, biocompatibility, and healing after surgery.

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Patent Owner(s)

Patent OwnerAddress
TECH MET INC15 ALLEGHENY SQUARE GLASSPORT PA 15045

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Incerpi, Jordan Pittsburgh, US 5 2
Schutzer, Daniel Jon Irwin, US 3 2
Vidra, Michael Export, US 10 5

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