DUAL LUMEN CANNULA FOR ARTIFICIAL LUNG AND RIGHT VENTRICULAR ASSIST DEVICE

摘要

A dual lumen cannula includes a first lumen having at least one aperture for removing a fluid from the interior of the heart right atrium, and a second lumen for delivering a fluid into the interior of the pulmonary artery or the heart left atrium. The second lumen includes a distal selectively curvable portion having a length of from about 4 cm to about 22 cm to position an end thereof within the interior of the pulmonary artery lumen or the human heart left atrium interior when a distal end of the first lumen is positioned within a right atrium of the human heart. The second lumen may also include a distal anchoring structure for preventing inadvertent withdrawal from a surgical site.

主权项

1. A dual lumen cannula, comprising:
a first lumen having a first length and including at least one distal drainage aperture; and a second lumen having a length that is greater than the first lumen length, a selectively curvable portion for assuming a predetermined angle or curvature, and a distal infusion aperture; wherein the second lumen distal infusion aperture is disposed at a distance of from about 4 cm to about 22 cm from the first lumen distal drainage aperture to allow positioning an end thereof in an interior of a pulmonary artery lumen or a left atrium of the human heart when the first lumen distal drainage aperture is positioned within a right atrium of the human heart.