Patent · US Expired

Femur component for an artificial hip joint

US4407022A · kind A · utility

16Cited by

1References

9Claims

0Family size

Assignee

Steinzeug- und Kunststoffwerke Friedrichsfeld GmbH · DE

Inventors

Gunther Heimke · Weinheim, DE
Peter Griss

Key dates

Filing date	Jun 16, 1981
Grant date	Oct 4, 1983
Priority date	—
Expiry date	Jun 16, 2001

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2310/00934
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The shaft portion of an artificial hip joint intended for cement-free anchoring in a femur which is generally rectangular in cross-section and is provided with outwardly projecting steps for direct transfer of axial forces between the shaft and the bone tissue, one half of the steps being transversely inclined with respect to the shaft axis with the other half of the steps inclined in the opposite direction by an equal amount to prevent rotation of the shaft as a result of the development of equal and opposite components of force.

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