Patent · US Expired

Artificial joints with magnetic attraction or repulsion

US4024588A · kind A · utility

114Cited by

5References

22Claims

0Family size

Assignee

Allo Pro AG · CH

Inventors

Rainer Janssen · Paderborn, DE
Bernhard Weber · Sankt Gallen, CH

Key dates

Filing date	Oct 3, 1975
Grant date	May 24, 1977
Priority date	—
Expiry date	Oct 3, 1995

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2310/00071
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An artificial joint for implantation into the living body comprises a head portion adapted to be anchored in one bone of the body and a socket portion adapted to be anchored in another bone. One of the head and socket portions includes a permanent magnet and the other portion either a magnetizable element or another permanent magnet. The two interacting magnetic elements may be polarized for either attraction or repulsion. The head and socket portions are shaped to permit translatory movements relative to each other in addition to rotary movements of the head portion about at least one axis of rotation.

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