Apparatus, systems and methods for providing fixation to an interior body region of a patient are provided. The apparatus includes an expandable cage which is inserted into a body region, such as cancellous bone of a vertebra, in a first geometry, and transitioned to a second geometry. Delivery devices...http://www.google.fr/patents/US20070173939?utm_source=gb-gplus-shareBrevet US20070173939 - SYSTEMS AND METHODS FOR FIXATION OF BONE WITH AN EXPANDABLE DEVICE
SYSTEMS AND METHODS FOR FIXATION OF BONE WITH AN EXPANDABLE DEVICE