DRILLS AND METHODS FOR VERTEBROSTENTING

摘要

The invention relates to a method of creating a curvilinear cavity within a vertebral body or other body structure. The invention also relates to devices that may be used to perform the steps to create the curvilinear cavity. In one embodiment such a device includes a handle, and extending from a distal end thereof a flexible drill shaft assembly adapted to form a curvature, said drill shaft assembly comprising a pivotable reaming blade located at a distal end of the flexible drill shaft assembly, a flexible rotatable drive shaft coupled to the blade, a flexible, moveable and non-rotatable housing, and a lever and cam sub assembly for 'varying a force used to apply the curvature.