Patent ID: 8114084

Claim:
A device for stabilizing compression fractures of the spine comprising: a housing having a lumen with a threaded track disposed along at least a portion of the lumen; a plunger having a proximal portion and a distal portion, wherein the plunger is disposed within the lumen and is movable relative to the housing, and wherein the plunger comprises a threaded portion that mates with the threaded track of the lumen of the housing; a plurality of blades located at the distal portion of the plunger, wherein a proximal end of each of the plurality of blades is coupled to a distal end of the plunger, and a distal end of each of the plurality of blades is coupled to the housing, and wherein the blades are configured to: expand convexially by bowing outward from an axis of the housing; and reduce a volume of trabecular bone within a vertebral body of the spine by cutting through the volume while rotating about the axis of the housing; and a manipulator functionally connected to the plunger, wherein the manipulator is configured to bend the blades convexially from the axis of the housing while the manipulator rotates the blades about the axis of the housing using the threaded track.