Doo Hoon Sun;Young-Kyun Lee;Kyung Hoi Koo;Yong Sik Kim;Yong-Chan Ha
发明人:
Doo Hoon Sun,Yong Sik Kim,Kyung Hoi Koo,Yong-Chan Ha,Young-Kyun Lee
申请号：
US13982168
公开号：
US20130310946A1
申请日:
2011.11.09
申请国别(地区):
US
年份:
2013
代理人:
摘要：
An acetabular cup assembly for an artificial hip joint includes an acetabular cup including a seating recess, a female taper formed on an inner wall, protrusion recesses formed to communicate with the seating recess and insertion recesses each positioned inside a corresponding one of the protrusion recesses； and a bearing including a male taper on an outer circumference thereof, protrusions inserted into the protrusion recesses, and insertion protruding portions each formed on a corresponding one of the protrusions, the insertion protruding portions being inserted into the insertion recesses. A polyethylene bearing can be firmly fixed to the acetabular cup. When a ceramic bearing made is inserted into the acetabular cup, the area where the bearing adjoins the acetabular cup is increased, thereby preventing the ceramic bearing from being broken. Since no groove is formed along the entire circumference of the acetabular cup, the strength is increased.
