Intervertebral prosthesis
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 25, 2012
Grant Date -
Aug 26, 2010
app pub date -
Oct 3, 2008
filing date -
Oct 5, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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