Patent ID: 7998210
Filing Date: 2011-08-16
Classification: A61F

Abstract:
1. An intervertebral spacer for positioning between first and second vertebral members comprising: a first contact surface to contact the first vertebral member; a second contact surface to contact the second vertebral member; a fluid chamber positioned between the contact surfaces and having telescoping inner and outer members with the outer member having a first sidewall and being sized to receive the second member; a slot extending through the first sidewall and into communication with the fluid chamber, the slot including first and second sides and an intermediate gap; an elongated clamping member having a first end and a second end, the clamping member extending into the outer member and across the slot with the first end on a first side of the slot and the second end on a second side of the slot; the elongated clamping member movable to adjust the gap between a first size for the inner member to be movable relative to the outer member to adjust a distance between the first and second contact surfaces, and a second size for the inner member to be fixed relative to the outer member.