A minimally invasive retractor and dissector for internal surgical use on a patient's body has a tubular support for passing into the patient's body. A proximal end on the tubular support located outside the patient's body is in position to provide access for the surgeon. A distal end on the tubular...http://www.google.es/patents/US5474057?utm_source=gb-gplus-sharePatente US5474057 - Laparoscopic dissection tension retractor device and method
Laparoscopic dissection tension retractor device and method
