A device for protecting tissues and structures adjacent to a tubular organ during performance of a surgical procedure on a portion of the tubular organ. Various embodiments may comprise a member that may be deployed through a surgical instrument in a first configuration and expanded to a second configuration...http://www.google.se/patents/US20120029272?utm_source=gb-gplus-sharePatent US20120029272 - APPARATUS AND METHODS FOR PROTECTING ADJACENT STRUCTURES DURING THE INSERTION OF A SURGICAL INSTRUMENT INTO A TUBULAR ORGAN
