The present invention is directed to an inflatable device for use in restoring the anatomy of diseased or fractured bone. The inflatable device may be a balloon of varied size or shape to conform to the bone to be treated and may be deployed in any type of bone where collapsed fractures of cortical bone...http://www.google.ca/patents/US6632235?utm_source=gb-gplus-sharePatent US6632235 - Inflatable device and method for reducing fractures in bone and in treating the spine