Blood pump

Details Blood pump Blood pump

1994-11-10

1996-03-26

Look, Edward K.

Rotary kinetic fluid motors or pumps

Runner has spirally arranged blade or fluid passage

Extending along runner axis

415143, 415230, 415900, 416177, F04D 108

Patent

active

055015743

ABSTRACT:
A dynamic blood pump includes a rotating core member and rotating ring portion effective to pre-spin blood before the blood enteres helical pumping channels of the pump. The blood is pumped and further rotated as it moves axially along the helical channels toward a centrifugal section of the pump. At the centrifugal pumping section circumferential velocity differentials are also controlled to diminish damage to the blood. Outwardly of the centrifugal pumping section, a forced-vortex pumping section communicates the pumped blood to an exit port.

REFERENCES:
patent: 2984189 (1961-05-01), Jekat
patent: 3087435 (1963-04-01), Boucher
patent: 3918831 (1975-11-01), Grennan
patent: 4877368 (1989-10-01), Timperi et al.
patent: 5040944 (1991-08-01), Cook
patent: 5139391 (1992-08-01), Carrouset
patent: 5368438 (1994-11-01), Raible
patent: 5382092 (1995-01-01), Okamoto et al.

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