METHODS AND INSTRUMENTS FOR USE IN VERTEBRAL TREATMENT
First Claim
1. A spinal implant extendable across a facet joint to aid in fixation of the facet joint, the spinal implant comprising:
- an elongate connecting member sized to extend across a facet joint, the elongate connecting member having a distal end comprising a distal bone anchor;
a bone allograft sized for placement in a bore formed through the facet joint and configured to be placed about the elongate connecting member; and
a locking member including a longitudinal bore sized to receive the elongate connecting member, the locking member having an unlocked condition permitting movement relative the elongate connecting member and a locked condition rigidly fixing the locking member in place on the elongate connecting member, the locking member being configured to cooperate with the distal bone anchor to compress the facet joint, and the locking member being configured to lock the spinal implant across the facet joint.
1 Assignment
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Accused Products
Abstract
A spinal implant extendable across a facet joint to aid in fixation of the facet joint includes an elongate connecting member, a bone allograft, and a locking member. The elongate connecting member is sized to extend across a facet joint and includes a distal bone anchor. The bone allograft is sized for placement in a bore formed through the facet joint and configured to be placed about the elongate connecting member. The locking member includes a longitudinal bore sized to receive the elongate connecting member, and the locking member has an unlocked condition permitting movement relative the elongate connecting member and a locked condition rigidly fixing the locking member in place on the elongate connecting member. The locking member is configured to cooperate with the distal bone anchor to compress the facet joint, and the locking member is configured to lock the spinal implant across the facet joint.
56 Citations
20 Claims
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1. A spinal implant extendable across a facet joint to aid in fixation of the facet joint, the spinal implant comprising:
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an elongate connecting member sized to extend across a facet joint, the elongate connecting member having a distal end comprising a distal bone anchor; a bone allograft sized for placement in a bore formed through the facet joint and configured to be placed about the elongate connecting member; and a locking member including a longitudinal bore sized to receive the elongate connecting member, the locking member having an unlocked condition permitting movement relative the elongate connecting member and a locked condition rigidly fixing the locking member in place on the elongate connecting member, the locking member being configured to cooperate with the distal bone anchor to compress the facet joint, and the locking member being configured to lock the spinal implant across the facet joint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A spinal implant for fixation of a facet joint, the spinal implant comprising:
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an elongate connecting member sized to extend across a facet joint, the elongate connecting member having a distal end comprising a distal bone anchor; a bone allograft sized for placement in a bore formed through the facet joint and configured to be placed about the elongate connecting member; and a locking member including a longitudinal bore sized to receive the elongate connecting member, the locking member having an unlocked condition permitting movement relative the elongate connector and a locked condition rigidly fixing the locking member in place on the elongate connecting member, the locking member being configured to cooperate with the distal bone anchor to compress the facet joint, the locking member being configured to lock the spinal implant across the facet joint; and a stabilization member including a bone contacting surface and an opposing surface, the stabilization member being configured to seat the locking member on the opposing surface, the stabilization member including a hole extending therethrough sized to receive the elongate connecting member, wherein the stabilization member slides over a portion of the elongate connecting member such that the portion extends through the hole. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for fixation of a facet joint, the facet joint having a superior articular process and an inferior articular process, the method comprising:
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forming a drill hole through the facet joint, inserting an elongate connecting member having a distal anchor into the facet joint and advancing the elongate connecting member and the distal anchor into the facet joint until the elongate connecting member spans the facet joint; drilling a well circumferentially around the elongate connector member; packing the well with a bone allograft; sliding a locking member over the elongate connector member such that locking member contacts the inferior articular process; and compressing the locking member around the elongate connector member to stabilize the facet joint. - View Dependent Claims (18, 19, 20)
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Specification