Left ventricle assist device (LVAD)

Details Left ventricle assist device (LVAD) Left ventricle assist device (LVAD)

2007-02-27

2010-12-07

Manuel, George (Department: 3762)

Surgery

Cardiac augmentation

Reexamination Certificate

active

07846083

ABSTRACT:
A pump has an elongated shell with a generally elliptical shape, an outer convex surface and an inner concave surface. A peripheral side edge located between the inner and outer surfaces terminates in a bead edge. A flexible airtight membrane has a membrane edge bonded to the outer shell surface adjacent to the bead edge. Preforming the membrane edge looped with a maximum linear span of curvature that is greater than a maximal transverse linear extent of the bead edge, membrane operational wear during inflation and deflation cycles is reduced in the region around the bead edge. A process of forming a blood pump with a membrane preform is also provided.

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patent: 6579223 (2003-06-01), Palmer
patent: 2004/0152945 (2004-08-01), Kantrowitz et al.

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