Modular motion preservation artificial joint assembly
AssigneeCardo Medical, Inc.
InventorFarid Bruce Khalili
Life of this patent
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Abstract
A system of reconstruction for a spinal joint allows adjacent vertebrae to move relative to each other in a generally pivotal manner and in a limited sliding manner in either or both of the anterior-posterior direction and the medial-lateral direction. The system includes base components and a middle component. The base components are for attachment to adjacent vertebrae and support a pivoting cooperative engagement of a concave or cup-shaped component with a convex or dome-shaped component.
Claims16
A prosthetic assembly for use between adjacent vertebrae, said assembly comprising
- a top component having a first side adapted to engage the lower side of a first vertebra, and a bottom side having a concave portion thereon;
- a middle component having a first side with a convex portion thereon adapted to engage said concave portion, and a second side;
- and
- a bottom component having a first side adapted to engage the upper side of a second vertebra, and a second side adapted to removably receive said middle component.
A prosthetic kit for use between adjacent vertebrae, said kit comprising
- a top component having a first side adapted to engage the lower side of a first vertebra, and a bottom side having a concave portion thereon;
- a plurality of middle components, each having a first side with a convex portion thereon adapted to engage said concave portion, and a second side;
- and
- a bottom component having a first side adapted to engage the upper side of a second vertebra, and a second side adapted to removably receive each of said middle components.
A prosthetic assembly for use between adjacent vertebrae, said assembly comprising
- a bottom component having a top surface, a bottom surface, an anterior edge, a posterior edge, two medial edges, and a generally concave portion on said top surface,
- a top component having a top surface, a bottom surface, an anterior edge, a posterior edge, two medial edges, and a generally concave portion on said bottom surface;
- and
- an intermediate component having a top surface, a bottom surface, an anterior edge, and a posterior edge;
- and
- an upper convex part on said top surface of said intermediate component and a lower convex part on said bottom surface of said intermediate portion.
Dependencies are inferred from the claim text.