Patent ID: 7014617
Filing Date: 2006-03-21
Classification: A61B,A61F

Abstract:
1. A tensiometer for measuring tension in an intervertebral disc space, comprising: a) a first longitudinal member having a distal end portion adapted for engaging a first vertebral surface, an intermediate portion, and a proximal handle portion having an attachment point, b) a second longitudinal member having a distal end portion adapted for engaging a second vertebral surface, an intermediate portion, and a proximal handle portion having an attachment point, the first and second longitudinal members being pivotally attached at a first pivot junction between the proximal handle and intermediate portions of each longitudinal member, and c) a load cell attached to each of the attachment points and adapted to report a load corresponding to a change in distance between the attachment points, wherein each distal end portion comprises a distal tip adapted to enter the disc space and distract the disc space when moved apart from each other, wherein the distal tips comprise two substantially parallel opposed plates adapted for distraction of the vertebral disc space.