Method and apparatus for spinal fixation
AssigneeInterventional Spine, Inc.
InventorsBrad S. Culbert, Bruce E. Stevens
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Abstract
Disclosed is a fixation device for spinal fixation. The fixation device includes an elongated body comprising a bone anchor at a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device. In one embodiment, the device is inserted through a first vertebra and the bone anchor is rotated into positioned within a second vertebra. The proximal anchor is distally advanced with respect to the bone anchor to provide compression across the first and second vertebra. In other embodiments, the device is used to secure stabilization devices across two or more vertebra.
Claims10
A method of providing spinal fixation, comprising the steps of:
- forming a through-bore between a pair of adjacent facets the through-bore defining a distal aperture and a proximal aperture;
- advancing a portion of a fixation device into the through-bore, the fixation device comprises a body extending between a proximal end and a distal end, a distal anchor at the distal end, and a first retention structure proximal to the distal anchor;
- advancing the distal end of the device through the through-bore until the distal anchor exits the distal aperture;
- and
- distally advancing a proximal anchor having a second retention structure over the proximal end of the fixation device such that the first retention structure engages with the second retention structure.
Dependencies are inferred from the claim text.