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:
Sep. 29, 2015
Filed:
Nov. 09, 2011
Doo Hoon Sun, Seoul, KR;
Yong Sik Kim, Seoul, KR;
Kyung Hoi Koo, Gyeonggi-do, KR;
Yong-chan Ha, Gyeonggi-do, KR;
Young-kyun Lee, Seoul, KR;
Doo Hoon Sun, Seoul, KR;
Yong Sik Kim, Seoul, KR;
Kyung Hoi Koo, Gyeonggi-do, KR;
Yong-Chan Ha, Gyeonggi-do, KR;
Young-Kyun Lee, Seoul, KR;
CORENTEC CO., LTD., Chungcheongnam-do, KR;
Abstract
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.