Apparatus for driving blood pumping device

Details Apparatus for driving blood pumping device Apparatus for driving blood pumping device

1991-02-11

1993-06-08

Cohen, Lee S.

Surgery

Cardiac augmentation

Aortic balloon pumping

623 3, A61N 1362

Patent

active

052174298

ABSTRACT:
An apparatus capable of automatically exchanging helium gas filling a balloon pump inserted in the aorta of a patient. The apparatus comprises a pressure generator producing positive pressure and negative pressure, an electronic control unit, an electrocardiograph, and a helium supply and discharge device. The positive and negative pressures produced by the pressure generator are alternately supplied to the balloon pump. The timer measures the time for which the pressure generator operates. The electronic control unit operates in response to the output signal from the timer and exchanges the helium gas with new helium gas whenever the the pressure generator operates the balloon pump for about 2 hours.

REFERENCES:
patent: 4175264 (1979-11-01), Schiff
patent: 4832005 (1989-05-01), Takamiya et al.
patent: 4974774 (1990-12-01), Nakagawa et al.
patent: 5045051 (1991-09-01), Milder et al.

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