Curved expandable interbody devices and deployment tools
AssigneeSpinal Elements, Inc.
InventorsKristen Clauss, David Ortiz
Life of this patent
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Abstract
A curved expandable interbody device for placement between vertebrae having an upper structure, a lower structure, and a screw mechanism, wherein actuation of the screw mechanism moves the upper and lower structures between a collapsed configuration and an expanded configuration. A deployment tool couples to the curved expandable interbody device for positioning the device between adjacent vertebrae and actuating the screw mechanism, wherein the deployment tool can lock to the curved expandable interbody device and pivot relative to the curved expandable interbody device.
Claims20
A curved expandable interbody device for placement between vertebrae comprising:
- an upper structure configured to abut a superior vertebra, wherein the upper structure comprises a first vertical marker comprising a first rod having a longitudinal axis extending vertically along a first axis and a first horizontal marker comprising a second rod having a longitudinal axis extending horizontally along a second axis, wherein the first vertical marker and the first horizontal marker are configured to form a plus shape when viewed radiographically;
- a lower structure configured to abut an inferior vertebra, wherein the lower structure comprises a second vertical marker comprising a third rod having a longitudinal axis extending vertically along a third axis and a second horizontal marker comprising a fourth rod having a longitudinal axis extending horizontally along a fourth axis;
- and
- a single central opening extending through the upper structure and the lower structure, a distal end configured to be a leading end for insertion, wherein the first horizontal marker is positioned between the single central opening and the distal end, wherein the second horizontal marker is positioned between the single central opening and the distal end, wherein the first horizontal marker extends inward from a first side surface of the upper structure at a location closer to the single central opening than the distal end, wherein the second horizontal marker extends inward from a first side surface of the lower structure at a location closer to the single central opening than the distal end;
- a screw mechanism between the upper structure and the lower structure, wherein the screw mechanism is configured to expand the curved expandable interbody device.
Dependencies are inferred from the claim text.