Occipital plate and system for spinal stabilization
First Claim
Patent Images
1. An occipital plate comprising:
- a Y-shaped plate portion having a front side and a back side, a central portion, at least two leg portions, a plurality of bone screw holes in the central portion, and at least one bushing;
wherein the holes are configured and dimensioned to receive the bushing; and
at least one clamping portion disposed on the front side proximate a free end of one of the at least two leg portions;
wherein the clamping portion comprises a pivot member and a clamp plate, the clamp plate being pivotable about the pivot member and includes an extension sized and configured to engage an arcuate stepped-in portion formed on the leg portion of the plate to limit the amount of pivot between the clamp plate and the plate.
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Accused Products
Abstract
An occipitocervical fixation system includes a plate for securing to the occiput and at least one pre-bent rod. The plate includes holes for receiving bone fasteners, and at least one clamping assembly for retaining a portion of a rod. The clamping assembly is selectively pivotable and lockable in place to fix the position of the rod.
174 Citations
69 Claims
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1. An occipital plate comprising:
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a Y-shaped plate portion having a front side and a back side, a central portion, at least two leg portions, a plurality of bone screw holes in the central portion, and at least one bushing;
wherein the holes are configured and dimensioned to receive the bushing; and
at least one clamping portion disposed on the front side proximate a free end of one of the at least two leg portions;
wherein the clamping portion comprises a pivot member and a clamp plate, the clamp plate being pivotable about the pivot member and includes an extension sized and configured to engage an arcuate stepped-in portion formed on the leg portion of the plate to limit the amount of pivot between the clamp plate and the plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An occipitocervical fixation system comprising:
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an occipital plate comprising a plate portion with at least one hole for receiving a bone screw, and at least two rod clamp portions extending therefrom, at least one of the rod clamp portions having a post, a pivotable clamp plate with a hole for receiving the post, and a fastener for tightening the clamp plate to the post; and
at least one rod, wherein the rod is retained between the clamp plate and one of the rod clamp portions, the clamp plate being pivotable about the post, wherein the plate further includes an arcuate stepped-in portion adjacent the post and the clamp plate further includes an extension sized and configured to engage the arcuate stepped-in portion. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. An occipital plate comprising:
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a front side and a back side, a central portion, and at least two leg portions extending from the central portion, at least one of the leg portions having a V-shaped rod-receiving first recess and an arcuate stepped-in portion;
at least one bone screw hole in the central portion;
at least one pivotable clamping portion disposed on the front side of one of the at least two leg portions;
wherein the at least one of the leg portions includes a post hole and the at least one clamping portion includes a pivot member and a clamp plate;
the pivot member being sized and configured to mate with the clamp plate and the post hole and the clamp plate includes a rod-receiving second recess sized and configured to align with the V-shaped first recess and an extension sized and configured to engage the arcuate stepped-in portion. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
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Specification