Patent · US Expired

Knee prosthesis

US4568348A · kind A · utility

146Cited by

3References

8Claims

0Family size

Assignee

Chas F Thackray Limited · GB

Inventors

Robert N. Johnson · Phoenixville, US
Martin A. Elloy · Ripon, GB

Key dates

Filing date	Mar 14, 1983
Grant date	Feb 4, 1986
Priority date	—
Expiry date	Mar 14, 2003

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2/3886
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

This invention relates to endo-prosthetic knee joint devices. A knee prosthesis according to the invention comprises a femoral component for attachment to the femur and having a bearing surface including a first inferior curved portion and a second posterior portion contiguous with and of relatively lesser curvature than said first portion, a tibial component for attachment to the tibia and having a concave bearing surface and a meniscal component to lie between the femoral and tibial components and having bearing surfaces complementary to said first portion of the bearing surface of the femoral component and to the bearing surface of the tibial component.

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