Method and apparatus for driving an intra-aortic balloon pump

Details Method and apparatus for driving an intra-aortic balloon pump Method and apparatus for driving an intra-aortic balloon pump

1997-05-27

1998-10-06

Kamm, William E.

Surgery

Cardiac augmentation

Aortic balloon pumping

A61M 110

Patent

active

058170014

ABSTRACT:
An intra-aortic balloon pump includes an overdrive system for inflating the intra-aortic balloon with a working gas and deflating the balloon more rapidly. A substantially constant inflation pressure is applied to the working gas for a predetermined time to substantially fully inflate the balloon to a working pressure. The inflation pressure is then reduced to a pressure which is substantially equal to the working pressure so as to maintain the balloon in the inflated condition and prevent its overinflation. Subsequently, a substantially constant deflation pressure is applied to the working gas and is held for a predetermined time to substantially fully deflate the balloon to a desired end deflation pressure. The deflation pressure is then increased to a pressure which is substantially equal to the end deflation pressure so as to maintain the balloon in the deflated condition and ready the system for the next inflation cycle.

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