Patent ID: 7293364
Filing Date: 2007-11-13
Classification: A61B

Abstract:
1. A measurement device for measuring a length of a vertebra, comprising: a body having a proximal portion, a distal portion, a longitudinal axis extending between the proximal portion and the distal portion, and a passageway extending along the longitudinal axis from the proximal portion to the distal portion; an engagement mechanism disposed adjacent the distal portion and adapted to position the body in a position with respect to the vertebra; a probe adapted to travel at least partially within the passageway of the body and along the longitudinal axis, the probe including an indicator; a locking member adapted to secure the probe in a fixed position with respect to the body; and a cam dial for indicating a movement of the probe, the cam dial having an increasing radius and configured such that the cam dial is rotatable until an outer surface of the cam dial defined by the increasing radius aligns with the indicator of the probe.