Automated occlusion clamp for centrifugal blood pumps

摘要

Retrograde flow in an extracorporeal blood circuit using a centrifugal blood pump 17 is prevented by passing the blood line through a normally-closed powered occlusion clamp 30, and opening the clamp in response to powering of the pump or, preferably, in response to the sensing of forward blood flow in the extracorporeal circuit.