Multiaxial artificial disc replacements
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Jun 3, 2004
app pub date -
Oct 6, 2003
filing date -
Oct 4, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An artificial disc replacement (ADR) that pivots along multiple, independent axes to accommodate both flexion/extension and lateral bending. In the preferred embodiment, the mechanism is a cruciate-shaped axle that allows independent movement along orthogonal axes, much like a 'universal joint.' The ADR can be used as a standalone device that attaches to the vertebrae, or can be mobile and tethered by way of a 'link member.' Friction between the axle and the top and bottom components can be reduced with needle-like roller bearings. Cushioning material, such as elastomerics, hydrogels, and other compressible resilient materials or springs may be used to control movement.
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