1) Medical device 
A valvulotome is a medical device used to destroy the venous valves in especially the GSV to allow for arterial flow. Since the leg veins usually contain a number of valves that direct flow towards the heart, they cannot directly be used as graft, but if vein valves are removed the arterial flow can be transferred via the GSV to the lower leg - th...
An instrument for sectioning a valve. ... (05 Mar 2000) ... 
(val´vu-lo-tōm″) an instrument for cutting a valve.
Type: Term Pronunciation: val′vyū-lō-tōm Definitions: 1. An instrument for sectioning a valve.