Retroperfusion control apparatus, system and method
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United States of America Patent
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-
Sep 12, 1989
Grant Date -
N/A
app pub date -
May 29, 1987
filing date -
May 29, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
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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