balloon catheter for use in vertebral augmentation; balloon catheter system for use in vertebral augmentation, comprised of a vertebral body balloon catheter, vertebral body balloons, a device for inflation of vertebral body balloon, trocars and surgical access instrumentation; vertebral augmentation access kit comprised of cannulas, vertebral augmentation access working sleeves, vertebral augmentation access drill, and vertebral augmentation access plunger; surgical apparatus for positioning...