Patent ID: 6620121
Filing Date: 2003-09-16
Classification: A61M,F04B

Abstract:
A cardiopulmonary bypass and extracorporeal oxygenation apparatus that provides a pulsatile blood flow output, said apparatus comprising:(a) a primary pump, which primary pump is a continuous pump; (b) an oxygenator in fluid communication with said primary pump; (c) a pulse wave generator in fluid communication with said oxygenator and positioned downstream from said primary pump; said pulse wave generator comprising: (i) a collapsible chamber having an inlet opening and an outlet opening formed therein; (ii) a first one-way valve connected to said inlet opening and positioned to permit the flow of blood from said primary pump through said collapsible chamber; and (d) a compression assembly operatively associated with said collapsible chamber and configured to alternately compress said collapsible chamber and permit the expansion of said collapsible chamber.