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US 2013/0094997 A1Published application
Even perfusion pump-integrated blood oxygenator
AssigneeUniversity of Kentucky Research Foundation
InventorsDongfang Wang, Joseph B. Zwischenberger
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Abstract
A blood oxygenator includes an integral pneumatic pump disposed substantially within a housing thereof, an inlet blood flow redirector, and an outflow blood collector. An atrium provided at an inlet of the oxygenator promotes even delivery of blood to the oxygenator. In use, the oxygenator provides an even dispersion of blood therethrough, establishing even perfusion and reducing areas of stagnant blood flow.
Claims17
A blood oxygenator, comprising:
- a housing, a blood inlet, a blood outlet, a sweep gas inlet, and a sweep gas outlet;
- a hollow membrane fiber array disposed within an interior of the housing for as exchange to and from blood passing through the oxygenator;
- an inlet blood flow redirector for evenly dispersing blood passing through the blood inlet through a distal end of the oxygenator;
- an outlet blood flow collector for collecting blood exiting the hollow membrane array prior to exiting the oxygenator via the blood outlet;
- and
- an integrated pneumatic pump disposed substantially within a perimeter defined by the housing, further wherein the integrated pneumatic pump is disposed in an interior of the hollow fiber membrane array.
3 more elements
A blood oxygenation system, comprising:
- a blood oxygenator having a housing, a blood inlet, a blood outlet, a sweep gas inlet, and a sweep gas outlet, a hollow membrane fiber array disposed within an interior of the housing for gas exchange to and from blood passing through the oxygenator, and an integrated pneumatic pump disposed substantially within a perimeter defined by the housing, further wherein the integrated pneumatic pump is disposed in an interior of the hollow fiber membrane array;
- a sweep gas pumping system for cyclically supplying a sweep gas to and from the oxygenator for oxygenating blood passing over the hollow membrane fiber array;
- and
- at least one cannula for supplying blood to the blood inlet and for removing blood from the blood outlet.
1 more element
Dependencies are inferred from the claim text.