Biventricular pulsatile cardiac support system having a mechanic

Details Biventricular pulsatile cardiac support system having a mechanic Biventricular pulsatile cardiac support system having a mechanic

1995-01-12

1998-04-28

Kamm, William E.

Surgery

Cardiac augmentation

A61M 110

Patent

active

057438455

ABSTRACT:
A biventricular pulsatile cardiac support system having a mechanically balanced stroke volume wherein a pair of side-by-side, valveless, compressible conduits extend through the compression chamber of a pulsatile flow cardiopulmonary bypass pump and a passive exterior valve positioned at the inlet and the outlet of the pump. The inlets of the conduits communicate with the right and left atria of the patient's heart and the outlets of the conduits communicate with the pulmonary artery and aorta so that the volume of blood passing from the right atrium, through the right ventricle, to the pulmonary artery, is substantially balanced with the volume of blood passing from the left atrium through the left ventricle to the aorta. The support system can be operated in single or biventricular support mode and in partial or total cardiopulmonary bypass mode, omitting the oxygenator used in conventional cardiopulmonary bypass, and in so doing, rely on the patient's own lungs rather than artificial oxygenator. This variant of cardiopulmonary support for cardiac surgery should reduce cost and complications associated with conventional cardiopulmonary bypass.

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