Cannula having constant wall thickness with increasing distal fl

Details Cannula having constant wall thickness with increasing distal fl Cannula having constant wall thickness with increasing distal fl

1997-11-13

1999-12-28

Kamm, William E.

Surgery

Cardiac augmentation

600585, 604282, A61N 1362, A61M 2501

Patent

active

060074787

ABSTRACT:
A cannula for use as for example on the inflow end of an implantable intravascular heart pump. The stiffness of the cannula is differentiated along its length, wherein its proximal end is stiffer than its distal end, while a substantially constant wall thickness is maintained along its entire length. Attached to the flexible distal end, is a rigid tip component having inlet ports and an interior surface profile that minimizes the risk of hemolysis and thrombogenisis.

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patent: 5911685 (1999-06-01), Siess et al.

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