Chemical polishing process for titanium and titanium alloy surgical implants
AssigneeRichards Medical Company
InventorsImogene Baswell, Kimberly Walsh, Eric Benz
Life of this patent
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Abstract
A method of chemically polishing medical implants by immersing them in a solution including lactic acid, hydrofluoric acid, and nitric acid to produce smooth, matte finished implants.
Claims9
A method of polishing a surgical ear tube implant formed of a biocompatible titanium or titanium alloy having a smooth polished surface that discourages tissue growth thereon, comprising the steps of:
- a. contacting the implant with a polishing solution including lactic acid, hydrofluoric acid and nitric acid;
- b. moving the implant and polishing compound relative one to the other;
- and thereafter
- c. washing the implant to remove substantially all of the polishing compound until the alloy has matte finish.
A polished surgical ear tube implant comprising an ear tube surgical implant formed of a biocompatible titanium or titanium alloy polished to a smooth, matte finish by contacting the formed implant with a polishing solution including lactic acid, hydrofluoric acid, and nitric acid;
- a. moving the implant and solution relative to one another;
- and thereafter
- b. washing the implant to remove substantially all of the polishing solution to produce the polished implant.
Dependencies are inferred from the claim text.