Expandable interbody device
AssigneeSpinal Elements, Inc.
InventorsJason Blain, David Solum, Dean Johnson, Markanthony Flores
Life of this patent
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Abstract
An expandable interbody device for placement between adjacent 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 expandable interbody device for positioning the device between adjacent vertebrae, actuating the screw mechanism and delivering a material to a chamber of the expandable interbody device.
Claims20
An expandable interbody device for placement between adjacent vertebrae comprising:
- an upper structure;
- a lower structure configured to slideably couple with the upper structure;
- and
- a screw mechanism between the upper structure and the lower structure, the screw mechanism comprising:
- a proximal section and a distal section;
- and
- a coupler comprising a proximal side configured to engage the proximal section and a distal side configured to engage the distal section;
- wherein the proximal section and the distal section are configured to rotate as a unit to change a length of the screw mechanism from a first length to a second length;
- wherein the proximal section is configured to engage the upper structure and the lower structure and the distal section is configured to engage the upper structure and the lower structure to move the upper structure and the lower structure from a first distance to a second distance.
An expandable interbody device for placement between adjacent vertebrae comprising:
- an upper structure;
- a lower structure configured to slideably couple with the upper structure;
- and
- a screw mechanism between the upper structure and the lower structure, the screw mechanism comprising a proximal section, a distal section and a coupler, wherein the coupler comprises a proximal side configured to engage the proximal section and a distal side configured to engage the distal section;
- wherein the proximal section comprises first threads wound in a first direction configured to engage a proximal threaded hole in the coupler, and the distal section comprises second threads wound in a second direction, opposite the first direction, configured to engage a distal threaded hole in the coupler.
Dependencies are inferred from the claim text.