Patent · US Active

Intervertebral disc prosthesis

US7628814B2 · kind B2 · utility

38Cited by

12References

8Claims

0Family size

Assignee

Synthes USA, LLC · US

Inventors

Armin Studer · Winterthur, CH
Jason Trachsel · Ipsach, CH
Martin Wymann · Köniz, CH

Key dates

Filing date	Sep 1, 2005
Grant date	Dec 8, 2009
Priority date	—
Expiry date	Jul 18, 2027

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2310/00796
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Intervertebral disc prosthesis including an upper apposition plate appropriate to rest against the base plate of an upper vertebra, a lower apposition plate spaced apart from the upper apposition plate and suitable to rest against the base plate of a lower vertebra, a plurality of elastic devices mounted between the two apposition plates and in their peripheral zones in a manner that the two apposition plates shall be displaceable in mutually resilient manner, and a central axis which runs essentially perpendicularly to the two apposition plates, the elastic devices being designed/configured in a manner that the intervertebral disc prosthesis as a whole exhibits asymmetrical stiffness.

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