Apparatus for driving a medical appliance

Details Apparatus for driving a medical appliance Apparatus for driving a medical appliance

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.

REFERENCES:
patent: 4556997 (1985-12-01), Takamiya et al.
patent: 4583525 (1986-04-01), Suzuki et al.
patent: 4648385 (1987-03-01), Oumi et al.
patent: 4787368 (1988-11-01), Kageyama
patent: 4794910 (1989-01-01), Mushika
patent: 4796606 (1989-01-01), Mushika
patent: 4832005 (1989-05-01), Takamiya et al.
patent: 4942735 (1990-07-01), Mushika et al.

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