Pumping apparatus and process characterized by gentle operation

Details Pumping apparatus and process characterized by gentle operation Pumping apparatus and process characterized by gentle operation

1976-03-15

1977-07-26

Croyle, Carlton R.

Rotary kinetic fluid motors or pumps

Plural runners supported for relative motion or on separate...

415 90, F01B 136, F01B 1300

Patent

active

040379841

ABSTRACT:
Pumps wherein smooth surfaced rotators cause propulsion of a delicate fluid without significant damage to the fluid. The pumps may be used as heart pumps, blood pumps, and pumps for all types of fluids in connection with the maintenance of life or biological functions in a human or animal subject in many in vivo, ex vivo, or in vitro applications, or for any other application requiring gentle fluid handling. The pumps may be actuated by internal or external electric motors, and the rotators may be configured to converge mutually as an inverse function of distance from the axis of the rotators. The rotators may be connected together, by pins passing through the fluid passages, for mounting and driving as a unit, or may be mounted and driven independently to further eliminate the possibility of damage to the fluid by rotator-connection members.

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