Laparoscopic apparatus and method for insertion into a space or potential space in a body including an introducer device having a tubular member with a bore extending therethrough. A tunneling shaft assembly is provided and is slidably mounted in the bore of the introducer device. The tunneling shaft...http://www.google.de/patents/US6679900?utm_source=gb-gplus-sharePatent US6679900 - Apparatus and methods for developing an anatomic space for laparoscopic hernia repair and patch for use therewith
