Patent · US Expired

Artificial wrist joint

US5507821A · kind A · utility

79Cited by
6References
6Claims
0Family size

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Key dates

Filing dateDec 7, 1993
Grant dateApr 16, 1996
Priority date
Expiry dateDec 7, 2013

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61F2220/0025
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

The artificial joint part consists of a distal spherical bearing member (1), which can be attached by attachment means (16) to the capitate bone (14) or/and hamate bone (15), and also of a platform (18), which is attached to the radius (6) and at right angles to the longitudinal axis (7) of the radius (6) towards the ulna (8) comprises a guide surface (5). An intermediate member (2) is supported at the proximal end with a sliding surface (4) on the guide surface (5) and is displaceable in the direction of the ulna (8), whereas at the distal end it forms a spherical bearing (3) for the bearing member (1).

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