Intervertebral body fusion device expanded with hardening material
AssigneeStryker European Operations Holdings LLC
InventorsChristopher P. Bell, Agustin Quintana
Life of this patent
Estimating the term…
Abstract
An expandable, intervertebral spacer includes a top component and a base component in engagement with the top component, the base component defining at least one channel for receiving a hardening material, and placement of the hardening material within the channel causes the top component to move between a first position in which the top component is a first distance from the base component and a second position in which the top component is a second distance from the base component, the second distance being greater than the first distance. The hardening material can be removed from the channel by a flexible coring tool, and the top component forced toward the base component to collapse the spacer.
Claims20
A kit for spinal surgery comprising:
- an expandable spacer having a top component, and a base component in engagement with the top component, the base component defining at least one channel for receiving a hardening material, wherein placement of the hardening material within the channel causes the top component to move between a first position in which the top component is a first distance from the base component and a second position in which the top component is a second distance from the base component, the second distance being greater than the first distance;
- and
- a coring tool adapted to remove the hardening material from the spacer after the hardening material has hardened.
A method for spinal repair comprising the steps of:
- inserting a spacer at least partially into an intervertebral disc space;
- and
- inserting hardening material into a channel of a base component of the spacer, the hardening material causing a top component of the spacer to move a distance from a first position to a second position, the top component being relatively further from the base component in the second position than in the first position;
- and
- removing the hardening material with a chisel tool after the hardening material hardens.
Dependencies are inferred from the claim text.