A laparoscopic retractor device comprising an elongate rigid frame member insertable through a laparoscopic trocar sleeve into a patient's body, a rigid retractor member pivotably attached to a distal end of the frame member, and one or more components on the retractor member for enabling modification...http://www.google.es/patents/US5280782?utm_source=gb-gplus-sharePatente US5280782 - Variable length laparoscopic retractor and associated method of use
Variable length laparoscopic retractor and associated method of use
