Replaceable expandable transmyocardial ventricular assist...

Details Replaceable expandable transmyocardial ventricular assist... Replaceable expandable transmyocardial ventricular assist...

2011-05-17

2011-05-17

Kahelin, Michael (Department: 3762)

Surgery

Cardiac augmentation

Reexamination Certificate

active

07942804

ABSTRACT:
A novel ventricular assist device is disclosed comprising a pump unit and a motor unit. The pump unit is made up of an impeller, an impeller housing, and a shaft. The impeller and/or the impeller housing are expandable, allowing for custom fitting and positioning of the pump unit within the ventricle. In certain embodiments, the shaft is adjustable, allowing for further customization of fit.

REFERENCES:
patent: 4143661 (1979-03-01), LaForge et al.
patent: 5163910 (1992-11-01), Schwartz et al.
patent: 5749855 (1998-05-01), Reitan
Gillum, Richard F., Epidemiology of Heart Failure in the United States, Am Heart J 1993, 126:1042-1047.

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