The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 2023
Filed:
Jun. 10, 2021
Depuy Synthes Products, Inc., Raynham, MA (US);
Rajendra Kasinath, Warsaw, IN (US);
Craig Ernsberger, Warsaw, IN (US);
Stephanie Vass, Warsaw, IN (US);
Steven N. Ginn, Granger, IN (US);
Haibo Qu, Warsaw, IN (US);
Weidong Tong, Warsaw, IN (US);
DEPUY SYNTHES PRODUCTS, INC., Raynham, MA (US);
Abstract
An orthopedic implant having a metal surface and a calcium phosphate layer disposed on at least part of the metal surface is described. The calcium phosphate layer has an average crystallite size of less than about 100 nm in at least one direction and dissolves for more than 2 hours in vitro. The calcium phosphate layer is substantially free of carbonate. The coating, which is formed on a sodium titanate surface, has increased shear strength and tensile strength. The coating is formed by a solution deposited hydroxyapatite process under inert conditions. The pH of the solution varies by less than 0.1 pH unit/hour during coating formation.