公开(公告)号：US6025536A

公开(公告)日：2000-02-15

申请号：US915296

申请日：1997-08-20

申请人： Larry S. Bender ,  David M. Blakemore ,  Richard C. Compton ,  Richard B. Cwik ,  Leslie N. Gilbertson ,  Steven M. Humphrey ,  Steven C. Kitch ,  Kris K. Merchant ,  Tim A. Mosher ,  Robin J. Reed

发明人： Larry S. Bender ,  David M. Blakemore ,  Richard C. Compton ,  Richard B. Cwik ,  Leslie N. Gilbertson ,  Steven M. Humphrey ,  Steven C. Kitch ,  Kris K. Merchant ,  Tim A. Mosher ,  Robin J. Reed

IPC分类号： A61F2/00 ,  A61F2/30 ,  B24C1/00 ,  A61F2/28

CPC分类号： B24C1/086 ,  A61F2/30767 ,  A61F2/3094 ,  A61F2002/30719 ,  A61F2002/30906 ,  A61F2250/0092 ,  A61F2310/00029

摘要： An orthopaedic implant is forged from a metallic body consisting of a cobalt-chromium alloy. The forged implant is descaled by blasting the implant with a particulate blasting agent at a momentum which is sufficient to remove scale formed on the implant during the forging step but insufficient to otherwise cause major structural surface deformation to the implant. The descaled implant is electro-chemical polished by submersing the implant in an acid bath having a temperature of between approximately 80.degree. F. and 90.degree. F. The acid bath includes approximately 45% sulfuric acid and 50% phosphoric acid. Direct current electrical power ranging between approximately 10 volts D.C. and 13 volts D.C. is applied to the implant. The polished implant is ultrasonically cleaned. The implant is inspected with a fluorescent penetrant to determine whether surface defects exist in the implant.

摘要翻译： 矫形植入物由钴铬合金构成的金属体锻造。 锻造的植入物通过以一种动量喷射植入物进行除鳞，该动量足以在锻造步骤中移除在植入物上形成的垢，但不足以另外导致植入物的主要结构表面变形。 通过将植入物浸入温度在约80°至90°F之间的酸浴中，对除垢植入物进行电化学抛光。酸浴包括约45％的硫酸和50％的磷酸。 大约10伏直流和13伏直流之间的直流电功率被施加到植入物上。 抛光的植入物被超声波清洗。 用荧光渗透剂检查植入物以确定植入物中是否存在表面缺陷。