Surgery – Cardiac augmentation – Aortic balloon pumping
Patent
1991-12-30
1993-06-08
Howell, Kyle L.
Surgery
Cardiac augmentation
Aortic balloon pumping
623 3, A61N 1362
Patent
active
052174301
ABSTRACT:
Apparatus for driving a medical appliance has a single compressor for generating both the positive and the negative pressures. Positive and negative pressure valves for controlling communication with the atmosphere are connected to the outlet and inlet terminals of the compressor and the outlet and inlet terminals of the compressor are also connected to a positive pressure accumulator and a negative pressure accumulator, respectively. The apparatus has pressure sensors to sense when the pressures in the accumulators reach a set pressure. The apparatus further has a one-way valve in the positive pressure line between the compressor and the valve or in the negative pressure line between the compressor and the valve. The apparatus prohibits the positive and negative pressure valves from being open at the same time.
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Aisin Seiki K.K.
Howell Kyle L.
Lacyk John P.
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