A cavity creation device is introduced into a cancellous bone volume of a vertebral body through a percutaneous access path. The cavity creating device is manipulated to form a cavity in the cancellous bone volume. A volume of filling material is placed in the cavity by introducing a tube through the...http://www.google.com.au/patents/US20070055279?utm_source=gb-gplus-sharePatent US20070055279 - Systems and methods for injecting flowable materials into bones
