Medical device driving system

Details Medical device driving system Medical device driving system

1986-07-07

1988-11-29

Hindenburg, Max

Surgery

Cardiac augmentation

Aortic balloon pumping

623 3, A61B 1900

Patent

active

047873680

ABSTRACT:
A system for driving a medical device includes a positive pressure source; a first electromagnetic valve connected with the positive pressure source; an negative pressure source; a second electromagnetic valve connected with the negative pressure source; and an electronic control for switching the first and second electromagnetic valves at a predetermined timing. The electronic control includes a setting circuit for setting the switching timing of the first and second electromagnetic valves to generate a setting timing signal; a switching arrangement for switching the first and second electromagnetic valves in response to the setting timing signal of the setting circuit; a memory having a plurality of operation modes for inhibiting the operation of the switching circuit at a predetermined ratio to a predetermined number of the setting timing signal; and switches for selecting one of the operation modes of the memory means.

REFERENCES:
patent: 4016871 (1977-04-01), Schiff
patent: 4175264 (1979-11-01), Schiff
patent: 4485818 (1984-12-01), Leckrone et al.
patent: 4583525 (1986-04-01), Suzuki et al.
patent: 4597381 (1986-07-01), Oumi et al.
patent: 4648385 (1987-03-01), Oumi et al.

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