Retroperfusion control apparatus, system and method

Details Retroperfusion control apparatus, system and method Retroperfusion control apparatus, system and method

1987-05-29

1989-09-12

Cohen, Lee S.

Surgery

Cardiac augmentation

Aortic balloon pumping

600 17, 604 67, A61M 100

Patent

active

048655813

ABSTRACT:
Retroperfusion control apparatus for supplying arterial blood of a patient to the venous side of the patient's heart including a pump having an inlet and an outlet and a piston movable through a pump stroke for moving a liquid from the inlet to the outlet of the pump. A stepper motor is provided which drives the piston. Electronic circuitry is provided for driving the stepper motor and senses the presence of an R wave in a patient to operate the stepper motor in response to the sensed R wave.

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patent: 4604034 (1986-08-01), Wheeldon et al.
patent: 4718576 (1988-01-01), Tamura et al.

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