Reduction system for spondylolisthesis
AssigneeSpinal Simplicity, LLC
InventorsTodd Moseley, Jeffrey David Lee, Melissa Frock
Life of this patent
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Abstract
A system and method for reducing spondylolisthesis. The system includes a bracket comprising a first opening and a second opening, a first and second rod, and a first and second knob. The system may be placed onto a patient's back, the rods may be inserted through the first opening and the second opening and further into a first vertebral part and a second vertebral part. Tightening of a first knob and a second knob on the first and second rod allow for repositioning of the vertebra. Once repositioned, an interspinous implant may be inserted into the interspinous process space, connecting the vertebrae.
Claims20
A spondylolisthesis reduction system for repositioning a displaced vertebra, comprising:
- a concave bracket configured to be placed onto an exterior back surface of a patient, the concave bracket having an opening therethrough;
- a rod configured to be received through the opening, the rod having a distal end for insertion into the displaced vertebra;
- a knob threadedly engaged with the rod,
- wherein when the knob is threaded down the rod towards the distal end, the knob abuts the concave bracket, thereby creating leverage against the exterior back surface to pull the rod posteriorly to reposition the displaced vertebra in a posterior direction;
- and
- an interspinous implant configured to be inserted when the displaced vertebra is repositioned.
A spondylolisthesis reduction system for repositioning a displaced vertebra via a posterior approach, comprising:
- a bracket configured to contact an external back surface of a patient, the bracket having an opening therethrough,
- wherein the bracket has a curvature configured to conform to a shape of the external back surface of the patient;
- a rod configured to be inserted through the opening, the rod having a distal end for insertion into a vertebral part of the displaced vertebra;
- and
- a knob comprising a hole for receiving the rod,
- wherein when the knob is advanced down the rod towards the distal end, the knob abuts the bracket, thereby creating leverage against the external back surface to pull the rod posteriorly to move the displaced vertebra to a new position.
A spondylolisthesis reduction system for repositioning a displaced vertebra, comprising:
- a first curved bracket configured to be placed over a first vertebral part of the displaced vertebra, the first curved bracket comprising a first opening;
- a second curved bracket configured to be placed over a second vertebral part of the displaced vertebra, the second curved bracket comprising a second opening enabling posterior access to the second vertebral part of the displaced vertebra,
- wherein the first curved bracket and the second curved bracket are configured to contact an external back surface of a patient;
- a first rod configured to be received though the first opening, the first rod having a first distal end for insertion into the first vertebral part;
- and
- a second rod configured to be received through the second opening, the second rod having a second distal end for insertion into the second vertebral part,
- wherein pulling one of the first rod or the second rod posteriorly repositions the displaced vertebra.
Dependencies are inferred from the claim text.