Rajendra Kasinath,Craig Ernsberger,Stephanie Vass,Steven N. Ginn,Haibo Qu,Weidong Tong
申请号:
US15472186
公开号:
US20180280566A1
申请日:
2017.03.28
申请国别(地区):
US
年份:
2018
代理人:
摘要:
An orthopedic implant having a metal surface and a hydroxyapatite layer comprising gallium ions therein disposed on at least part of the metal surface is described. The hydroxyapatite layer has an average crystallite size of less than about 75 nm in at least one direction and dissolves for more than 2 hours in vitro. The hydroxyapatite 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.