Patent · US Active

Intervertebral prosthesis

US8337560B2 · kind B2 · utility

0Cited by

15References

16Claims

0Family size

Inventors

Vincent Pointillart · Bordeaux, FR
Richard Assaker · Kain, BE

Key dates

Filing date	Oct 3, 2008
Grant date	Dec 25, 2012
Priority date	—
Expiry date	Apr 19, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2250/0008
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An intervertebral disk prosthesis, having a rigid top plate, a rigid bottom plate, and an elastically deformable intermediate cushion housed between the two inner surfaces of the plates. The cushion, at rest, possesses a wedge-shape possessing at least one front notch open into the larger end of the wedge and one rear notch open into the narrower end. The faces of the notches co-operate by contact over an area of magnitude that varies as a function of the intensity and/or direction of the load to which the prosthesis is subjected. The bottoms of the notches are spaced apart from each other and situated in the narrower half of the prosthesis.

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