An apparatus for in-situ cutting through one-way valves in a vein to convert the vein for use as an artery and a method therefor. The apparatus employs a cutting catheter and a pulling catheter. The pulling catheter is advanced through the vein in the normal direction of blood flow and is then connected...http://www.google.es/patents/US5026383?utm_source=gb-gplus-sharePatente US5026383 - Apparatus for in-situ cutting of valves within veins and method therefor
Apparatus for in-situ cutting of valves within veins and method therefor
