Patent ID: 9211153
Filing Date: 2015-12-15
Classification: A61B

Abstract:
1. A method of augmenting a fractured vertebral body in a patient, comprising the steps of: a) selecting an expandable sleeve characterized by a collapsed configuration and an expanded configuration, and comprising a cannulated shaft having a bore, a proximal end, a distal end, a threaded bushing and a plurality of longitudinal slits opening onto the distal end and forming at least two legs in the cannulated shaft, b) inserting the expandable sleeve into the fractured vertebral body in its collapsed configuration, c) expanding the sleeve to its expanded configuration to tamp the fractured vertebral body, d) rotating the expanded sleeve without simultaneous longitudinal movement of the rotating expanded sleeve so that bone in a first conical region is tamped, e) returning the expanded sleeve to its collapsed configuration, f) removing the sleeve from the vertebral body to leave a cavity having a conical region in the fractured vertebral body, and g) filling the cavity with bone cement.