Patent ID: 8551098
Filing Date: 2013-10-08
Classification: A61B

Abstract:
1. A bone scoring device comprising: a body extending along a longitudinal axis between an upper portion and a lower portion; a shield attached to the lower portion of the body; a scoring member having a distal face transverse to the longitudinal axis comprising an abrasive surface configured to engage a bone surface, the abrasive surface comprising a plurality of projections extending parallel to the longitudinal axis; a first biasing member connected to and configured to rotate said scoring member, the scoring member being axially movable between a first, non-rotatable position, such that the scoring member is engaged with the shield and a second rotatable position such that the scoring member is released from engagement with the shield and freely rotatable; a second biasing member configured to axially move said shield from said second position to said first position, wherein the interior of the shield proximal to the body and an outer surface of the scoring member contain a gearing/threading mechanism configured to prevent free rotation of the scoring member in the first position.