Sealless heart pump

Details Sealless heart pump Sealless heart pump

1989-05-08

1991-09-17

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

623 3, 415900, 4174231, A61M 100, A61N 500

Patent

active

050491342

ABSTRACT:
A sealless centrifugal blood pump is provided in which a rotatable impeller is supported in a pump housing by fluid bearings during operation. Rotational movement of the impeller is accomplished with an inverted motor for magnetic driving of the impeller and maintenance of the axial running position of the impeller relative to the housing.

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patent: 3960468 (1976-06-01), Boorse et al.
patent: 4135253 (1979-01-01), Reich et al.
patent: 4382199 (1983-05-01), Isaacson
patent: 4625712 (1986-12-01), Wampler
patent: 4645733 (1987-02-01), Hauenstein
patent: 4688998 (1987-08-01), Olsen et al.
patent: 4704121 (1987-11-01), Moise
patent: 4714405 (1987-12-01), Schaefer et al.
patent: 4806080 (1989-02-01), Mizobuchi et al.
patent: 4812108 (1989-03-01), Kotera

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