Patent · US Expired

Prosthetic knee joint with roller bearings

US4919660A · kind A · utility

13Cited by
13References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 13, 1987
Grant dateApr 24, 1990
Priority date
Expiry dateOct 13, 2007

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T403/32959
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

Knee joint prosthesis of the type including a first and second element (1, 2) capable of being secured rigidly to the bones connected by the joint. The first element (1) carries a clevis (3) through which the axis XX' of a bending pivot (4) passes. The second element (2) carries an eye (5) introduced between the legs of the clevis (3). The pivot (4) includes a pin (41) carrying on the outside a bearing ring (43) fitted in the eye (5) of the joint and lateral stops (44, 44') with a diameter corresponding to that of the ring (43), respectively fitted in the clevis (3).

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