B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 24/28 (2006.01) A61M 1/10 (2006.01) A61M 1/16 (2006.01) A61M 1/26 (2006.01)
Patent
CA 2358053
Improvements to integrated blood pump/oxygenator (120) having a rotating hollow fiber bundle (127) assembly that both oxygenates, and pumps blood, are provided. An inner member arranged along a central axis of the device accelerates blood entering the fiber bundle (127) to reduce micro-bubble generation, and blood trauma. Shearing loads imposed on the fiber elements of the fiber bundle (127) are reduced by the addition of a reinforcement structure, while the gas flow path is configured to reduce flooding, and loss of oxygenation efficiency due to occasional rupture of fiber elements.
L'invention porte sur des améliorations apportées à un système (120) intégré de pompage/oxygénation du sang comprenant un ensemble rotatif de faisceaux (127) de fibres creuses qui oxygène et pompe le sang. Un élément interne disposé le long d'un axe central du dispositif accélère la pénétration du sang dans le faisceau (127) de fibres de façon à réduire la génération de micro-bulles et le trauma sanguin. Des charges de cisaillement imposées aux éléments du faisceau (127) de fibres sont réduites lorsqu'on ajoute une structure de renforcement, et la voie d'écoulement gazeux est configurée de façon à réduire le débordement et la perte d'efficacité de l'oxygénation dans le cas d'une rupture accidentelle des éléments des fibres.
Afzal Thomas A.
Dueri Jean-Pierre
Leynov Alex
Makarewicz Anthony
Piplani Alec A.
Cardiovention Inc.
Smart & Biggar
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