Patent ID: 7722624
Filing Date: 2010-05-25
Classification: A61B,A61M

Abstract:
1. A method for treating bone comprising: providing a tubular assembly comprising a first tubular member having a distal end, a second tubular member extending along an axis, longitudinally extending through the interior of the first tubular member, and having a distal end projecting outwardly beyond the distal end of the first tubular member, and a torque transmitting stylet longitudinally extending through the interior of the second tubular member and having a distal end fixedly and nonremovably secured to the distal end of the second tubular member, providing a structure having opposite ends spaced along the axis, the structure being adapted to undergo expansion outwardly about the axis, the structure having a normally unwrapped condition having an outside diameter, securing one end of the structure to the distal end of the first tubular member, and the other end of the structure to the outwardly projecting distal end of the second tubular member, in a manner such that the structure substantially envelopes the outwardly projecting distal end of the second tubular member, placing the structure in a wrapped condition by rotating the stylet to thereby rotate the second tubular member relative to the first tubular member and wrap the structure inwardly about the outwardly projecting distal end of the second tubular member to reduce the outside diameter, inserting the structure, while in the wrapped condition, into bone, returning the structure to the unwrapped condition inside bone, and causing expansion of the structure in cancellous bone.