Cardiovention, Inc.

Greg Potts

Alec A Piplani

Alex Leynov

Thomas A Afzal

Joseph P Loeffler

Mehrdad Farhangnia

Jean-Pierre Dueri

Christian Skieller

Anthony Makarewicz

Improvements to integrated blood pump/oxygenator having a rotating hollow fiber bundle 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 to reduce microbubble generation and blood trauma. Shearing loads imposed on the fiber elements of the fiber bundle 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.

Integrated blood oxygenator and pump system

An integrated blood pump/oxygenator having a rotating hollow fiber bundle assembly that both oxygenates and pumps blood is provided that includes a plurality of partitions disposed within or about the fiber bundle assembly to lengthen the flow path of blood passing through the fiber bundle. Alternatively, or in addition, blood flow paths may be lengthened and oxygenation improved by providing internal recirculation paths within the pump/oxygenator, which also advantageously may be used to reduce blood trauma caused by stagnation nearing moving parts and heat build-up.

Integrated blood pump and oxygenator system having extended blood flow path

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Mountain View, CA, United States of America

Greg Potts