An intravascular microaxial pump has an integrated configuration that enables both the drive unit as well as the pumping segment to be advanced through a patient's vasculature. The device includes elements that enhance pumping efficiency and performance while minimizing shear and cavitation. Cost reduction...http://www.google.fr/patents/US5921913?utm_source=gb-gplus-shareBrevet US5921913 - Statorless intravascular microaxial flow pump