Patent · US Expired

Bearing surface for prosthesis and replacement of meniscal cartilage

US5358525A · kind A · utility

227Cited by
6References
9Claims
0Family size

Inventors

Key dates

Filing dateDec 28, 1992
Grant dateOct 25, 1994
Priority date—
Expiry dateDec 28, 2012

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61F2310/00017
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A cartilage replacement apparatus. This apparatus is a hollow plastic pad with a load bearing material within the plastic pad. The load bearing surface provides the shock absorbing compliance of natural cartilage and is effective in absorbing the peak contact stresses imposed on a prosthesis when placed in an extreme, load bearing situation. The unique characteristics of the invention makes it a permanent replacement for cartilage, thus permitting patients to avoid further replacement surgery. It also would provide a unique bearing surface for total joint replacement surgery, such that it would obviate the destructive effects of particulate debris.

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