Isolating cardiac circulation

A - Human Necessities – 61 – M

Patent

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A61M 25/00 (2006.01)

Patent

CA 2557480

In a method for substantially isolating cardiac circulation from systemic circulation (200), flow between the coronary sinus and the right atrium is occluded (202). A venous collection device having a collection lumen and a support structure is located in the coronary sinus (204). The support structure is used to maintain patency of the coronary sinus during collection of fluid through the collection lumen (206). An artificial flow path is provided between the collection lumen and the one or more coronary arteries, thus isolating the cardiac circulation (208). According to the method, cardiac pumping for systemic circulation can be maintained during isolation of the cardiac circulation.

Dans une méthode destinée à isoler sensiblement la circulation cardiaque de la circulation systémique (200), il se produit une occlusion de l'écoulement entre le sinus coronarien et l'atrium droit (202). L'invention concerne un dispositif de recueillement veineux présentant une lumière de recueil et une structure de support située dans le sinus coronarien (204). La structure de support est utilisée pour maintenir la perméabilité du sinus coronarien lors du recueillement de fluide par la lumière de recueillement (206). Le trajet d'écoulement artificiel s'effectue entre la lumière de recueillement et une des artères coronariennes, ce qui permet d'isoler la circulation cardiaque (208). Selon la méthode de l'invention, le pompage cardiaque destiné à la circulation systémique peut être maintenu lors de l'isolement de la circulation cardiaque.

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