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.
Claims14
A method of implanting an expandable interbody device comprising:
- positioning the expandable interbody device between adjacent vertebrae, wherein the expandable interbody device comprises:
- an upper structure configured to abut a superior vertebra;
- a lower structure configured to abut an inferior vertebra;
- and
- a screw mechanism between the upper structure and the lower structure, the screw mechanism comprising a proximal portion, a distal portion and a coupler at least partially between the proximal portion and the distal portion;
- and
- rotating the proximal portion and the distal portion as a unit to change a length of the screw mechanism from a first length to a second length, wherein the coupler is prevented from rotating by at least one anti-rotational feature when the proximal portion and the distal portion are rotated;
- wherein a distance between the upper structure and the lower structure changes from a first height to a second height as the length of the screw mechanism changes from the first length to the second length.
A method of implanting an expandable interbody device comprising:
- positioning the expandable interbody device between adjacent vertebrae, wherein the expandable interbody device comprises:
- an upper structure configured to abut a superior vertebra;
- a lower structure configured to abut an inferior vertebra;
- and
- a screw mechanism between the upper structure and the lower structure, the screw mechanism comprising a proximal portion, a distal portion and a coupler at least partially between the proximal portion and the distal portion;
- and
- rotating the proximal portion and the distal portion as a unit to change a length of the screw mechanism from a first length to a second length, wherein the coupler is prevented from rotating by at least one anti-rotational feature that engages the upper structure or the lower structure when the proximal portion and the distal portion are rotated;
- wherein a distance between the upper structure and the lower structure changes from a first height to a second height as the length of the screw mechanism changes from the first length to the second length.
Dependencies are inferred from the claim text.