Apparatus for driving a medical appliance

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

1984-11-14

1987-03-10

Howell, Kyle L.

Surgery

Truss

Perineal

A61B 1900

Patent

active

046483853

ABSTRACT:
With a driving system being separated by a diaphragm into two sections, a predetermined pressure is applied to the primary side of the diaphragm using air and helium gas or the like is used on the secondary side of the diaphragm, so that the pressure on the primary side of the diaphragm is transmitted to an artificial heart or the like connected to the secondary side thereof. Independently of a control system for maintaining the output from a pressure sensor to a predetermined value at all times, a solenoid valve for directly providing a higher pressure produced by a compressor or the like at the given drive timing is provided in a pressure regulating system, thereby causing a sharp rise in drive of the diaphragm. In an operation mode for automatically exhausting air from the secondary side of the diaphragm, the higher and lower pressures are alternately applied to the secondary side with the primary side being subject to the lower pressure, thus replacing air by another gas.

REFERENCES:
patent: 3234932 (1966-02-01), Bird et al.
patent: 3410263 (1968-11-01), McGinnis
patent: 3452738 (1969-06-01), Jones
patent: 3550162 (1970-12-01), Huffman et al.
patent: 3572979 (1971-03-01), Morton
patent: 3698381 (1972-10-01), Federico et al.
patent: 3955557 (1976-05-01), Takagi
patent: 3966358 (1976-06-01), Heimes
patent: 4080958 (1978-03-01), Bregman
patent: 4175264 (1979-11-01), Schiff

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