Drive unit for medical pump

Details Drive unit for medical pump Drive unit for medical pump

1987-08-27

1989-01-10

Coven, Edward M.

Surgery

Cardiac augmentation

Aortic balloon pumping

623 3, A61B 1900

Patent

active

047966068

ABSTRACT:
A fluid isolator is used to separate a drive gas from a drive air. A pulsation in the air pressure is produced to drive a balloon pump placed within the aorta through the drive gas. The gas pressure on the secondary side is determined as the air pressure applied to the primary side of the isolator is a positive pressure, and the quantity of gas on the secondary side is automatically regulated in accordance with a result of such determination. The gas pressure may be controlled so as to coincide with a target value, or alternatively, the quantity of gas may be controlled in accordance with a difference between the gas pressure and the blood pressure of a physical body.

REFERENCES:
patent: 4462355 (1987-05-01), Pieronne et al.
patent: 4516567 (1985-05-01), Veragen
patent: 4522194 (1985-06-01), Normann
patent: 4524466 (1985-06-01), Hall et al.
patent: 4648385 (1987-03-01), Ovin et al.

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