Patent ID: 9724208
Date: 2017-08-08
CPC Classifications: A61B,A61F

Claim:
1. A vertebral body replacement device comprising: an outer housing defining an interior cavity and having an interior surface; an inner housing having an exterior surface and nesting within at least a portion of the interior cavity of the outer housing, the inner housing moveable along a longitudinal direction to increase a height of the vertebral body replacement device, wherein the exterior surface of the inner housing is engageable with the interior surface of the outer housing and wherein the exterior surface of the inner housing moves from a normal, unbiased position where it is engaged with the interior surface of the outer housing, substantially preventing the outer housing from moving longitudinally with respect to the inner housing, to a biased position, where the exterior surface of the inner housing is substantially disengaged from the interior surface of the outer housing, permitting longitudinal movement of the outer housing with respect to the inner housing; a retention member positionable within the interior cavity and removably engageable with a portion of the inner housing, wherein the retention member, when positioned in engagement with the inner housing prevents the exterior surface of the inner housing from biasing inwardly and, thus, prevents longitudinal movement of the outer housing with respect to the inner housing and contraction of the vertebral body replacement device; an upper bone contact member having an upper bone contact surface; and a lower bone contact member having a lower bone contact surface.