Extracorporeal blood pump for cardiac surgery

Details Extracorporeal blood pump for cardiac surgery Extracorporeal blood pump for cardiac surgery

1996-07-30

1998-09-01

Freay, Charles G.

Pumps

Motor driven

Including manual, mechanical, or diverse drive

417420, 4174103, 418 36, 418 37, 418 69, 604 4, F04B 914, F04B 1700

Patent

active

058001387

ABSTRACT:
An extracorporeal blood pump for cardiac surgery is disclosed having a housing with a cylindrical cavity, radially-spaced input and output ports and a pair of radial blades within the cavity. The blades are supported on independent, concentric axles such that one blade can remain between the ports while the other blade rotates to create independent input and output chambers. Magnetic elements attached to the axles are in magnetic coupling relation to corresponding magnetic elements of two independent motors. The blades and magnetic elements corrected thereto are covered in plastic and are hermetically sealed within the housing. A programmable logic controller controls the motion and the blades to simulate the pulsatile pumping of a human heart. The axles of the blades can extend out one side of the housing for engagement by a manual activation device operable to continuously alternately rotate one of the axles one half rotation while holding the other axle motionless.

REFERENCES:
patent: 2270976 (1942-01-01), Sobek
patent: 2566743 (1951-09-01), Okulitch et al.
patent: 3420184 (1969-01-01), Engelesberg et al.

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