公开(公告)号：US3584318A

公开(公告)日：1971-06-15

申请号：US3584318D

申请日：1966-01-13

Applicant: NAT RES DEV

Inventor： SCALES JOHN TRACEY ,  DUFF-BARCLAY IAN

IPC: A61F2/00 ,  A61F2/32 ,  A61F2/34 ,  A61F2/36 ,  A61F1/24 ,  A61F5/01

CPC classification number: A61F2/32 ,  A61F2002/30324 ,  A61F2002/30382 ,  A61F2002/3401 ,  A61F2002/3411 ,  A61F2002/3429 ,  A61F2002/3438 ,  A61F2002/3451 ,  A61F2002/3631 ,  A61F2002/3686 ,  A61F2220/0033 ,  A61F2250/0036 ,  A61F2310/00029 ,  Y10T403/32778

Abstract: A PROSTHESIS USED AS AN ARTIFICIAL JOINT IN THE HUMAN BONE STRUCTURE COMPRISES A BEARING MEMBER ADAPTED TO BE HELD IN A FIXED POSITION BY A CUP-SHAPED SEATING MEMBER WHICH IS ANCHORED TO THE BONE STRUCTURE. THE CONCAVE, SPHERICAL BEARING SURFACE OF THE BEARING MEMBER HAS A RELIEVED PORTION FOR RECEIVING PARTICLES OF ATTRITION FROM THE JOINT MEMBERS FORMED DURING USE OF THE JOINT AND AN OPENING FOR RELEASING THE PARTICLES FROM THE JOINT. A FEMORAL MEMBER WITH A GENERALLY SPHERICAL SHAPED HEAD HAVING A FLAT AREA TO INSURE BETTER WEARING OF THE JOINT IS MOUNTED WITHIN THE BEARING MEMBER.