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US 2006/0149375 A1Published application
Prostheses, Tools And Methods For Replacement Of Natural Facet Joints With Artificial Facet Joint Surfaces
OwnerHansen Yuan, David Stinson +2inventors
InventorsHansen Yuan, David Stinson, Lawrence Jones, Mark Reiley
Life of this patent
Estimating the term…
Abstract
Cephalad and caudal vertebral facet joint prostheses and methods of use are provided. The cephalad prostheses are adapted and configured to be attached to a lamina portion of a vertebra without blocking a pedicle portion of the cephalad vertebra.
Claims26
1-102. (canceled)
A facet implant comprising:
- a superior implant having an articulating surface and a fixation surface and being configured for placement on a superior articular facet;
- a inferior implant having an articulating surface and a fixation surface and being configured for placement on an inferior articular facet and for interacting with a translaminar fixation mechanism, whereby the articulating surface of the superior implant and the articulating surface of the inferior implant are configured to interact;
- and
- a translaminar fixation mechanism for securing the inferior implant to the inferior articular facet.
1 more element
A facet implant comprising:
- a superior implant having a fixation surface and a generally curved articulating surface, the superior implant being configured for placement on a specifically prepared articulating surface of a superior articular facet;
- and
- an inferior implant having a fixation surface and a generally convex articulating surface, the inferior implant being configured for placement on a specifically prepared articulating surface of an inferior articular facet, whereby the generally curved articulating surface of the superior implant and the generally convex articulating surface of the inferior implant being configured to interact.
A facet implant comprising:
- a superior implant having a fixation surface and a generally curved articulating surface, the superior implant being configured for placement on a specifically prepared articulating surface of a superior articular facet;
- a inferior implant having a fixation surface and a generally convex articulating surface, the inferior implant being configured for placement on a specifically prepared articulating surface of an inferior articular facet and for interacting with a translaminar screw, whereby the articulating surface of the superior implant and the articulating surface of the inferior implant being configured to interact;
- and
- a translaminar fixation mechanism for securing the inferior implant to the inferior articular facet.
1 more element
A method for providing articulating surfaces for facet joint articular facets comprising:
- removing a portion of a superior articular facet or an inferior articular facet;
- using a surgical instrument to prepare the articulating surface of the inferior articular facet for an inferior implant;
- using a surgical instrument to prepare the articulating surface of the superior articular facet for a superior implant;
- placing the inferior implant on the inferior articular facet such that an articulating surface of the inferior implant is positioned on the articulating surface of the inferior articular facet;
- placing the superior implant on the superior articular facet such that an articulating surface of the superior implant is positioned on the articulating surface of the superior articular facet;
- wherein the articulating surface of the superior implant and the articulating surface of the inferior implant are configured to articulate with one another.
3 more elements
Dependencies are inferred from the claim text.