Patent · US Expired

Sliding partners for artificial joint implants

US6425921B1 · kind B1 · utility

44Cited by

4References

7Claims

0Family size

Assignee

ESKA IMPLANTS AG · DE

Inventors

Hans Grundei · Lübeck, DE
Wolfram Thomas · Winnenden, DE

Key dates

Filing date	May 12, 2000
Grant date	Jul 30, 2002
Priority date	—
Expiry date	May 12, 2020

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61L2430/24
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Pairs of partner elements for artificial joint implants have two-dimensional surface contact in which one joint part (1) rotates, rolls, slides or combines these in one movement relative to another joint part (2). A gap (10) is formed between the sliding partner elements for a film consisting of natural synovia fluid. The surface of at least one of the sliding partner elements has regularly positioned recesses (3) which serve as a reservoir for the synovia.

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