An improved laparoscopic apparatus for tunneling to a desired anatomical location and developing a surgical space is disclosed, including a tunneling member adapted to receive a laparoscope therein and an inflatable balloon secured on the tunneling member. The tunneling member has a passage extending...http://www.google.com/patents/US6015421?utm_source=gb-gplus-sharePatent US6015421 - Apparatus and method for developing an anatomic space for laparoscopic procedures
