A blunt dissection cannula and method selectively isolate a vessel of interest within the body of a patient by dissecting connective tissue in and about the adventitial tissue plane. The procedure includes selectively advancing the cannula and transparent tapered tip along the vessel of interior to form...http://www.google.se/patents/US5916233?utm_source=gb-gplus-sharePatent US5916233 - Vessel harvesting method and instrument including access port
