Patent · US Expired

Artificial joint

US5092898A · kind A · utility

93Cited by
1References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 31, 1989
Grant dateMar 3, 1992
Priority date—
Expiry dateMay 31, 2009

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61F2310/00317
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

An artificial femoral head having outer casing and generally spherical head inserted therein with a plurality of bearings inserted therebetween, permitting rotation with a coefficient of friction substantially equal to that of human cartilage. An artificial hip joint having a cup-shaped socket, capable of either being threaded or cemented into a bone cavity, having a generally spherical head inserted therein, having a plurality of bearings therebetween permitting rotation. Another embodiment of the hip joint includes a slide bearing inserted therebetween in addition to the plurality of bearings, permitting rotation in a range up to 120.degree..

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.