Vacuum venous assist cannula

Details Vacuum venous assist cannula Vacuum venous assist cannula

2008-06-03

2008-06-03

Lucchesi, Nicholas D. (Department: 3763)

Surgery

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

Material introduced into and removed from body through...

C604S523000, C604S093010

Reexamination Certificate

active

07381196

ABSTRACT:
A cannula having an elongated tubular flexible body reinforced to prevent kinking in which the distal end of the tube is inserted in the heart and is provided with openings allowing blood to enter the lumen or bore of the tube. A cage structure is located at the tip to maintain the tissue walls of the heart spaced from the openings and prevent obstruction to permit the free flow of blood. In a two-stage cannula, openings also are provided at an intermediate portion of the tubular body spaced slightly from the distal end. This portion also is provided with a cage structure to maintain the openings separated from tissue or organ walls that might otherwise clog the openings.

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patent: 6152911 (2000-11-01), Giannoble
patent: 6152912 (2000-11-01), Jansen et al.

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