Chemical apparatus and process disinfecting – deodorizing – preser – Blood treating device for transfusible blood – Oxygenator
Reexamination Certificate
2011-04-19
2011-04-19
Deak, Leslie R (Department: 3761)
Chemical apparatus and process disinfecting, deodorizing, preser
Blood treating device for transfusible blood
Oxygenator
C422S048000, C604S006140, C210S321780
Reexamination Certificate
active
07927544
ABSTRACT:
A paracorporeal respiratory assist lung is configured with an annular cylindrical hollow fiber membrane (fiber bundle) that is rotated at rapidly varying speeds. Fluid (for example, blood) is introduced to the center of the device and is passed radially through the fiber bundle. The bundle is rotated at rapidly changing velocities with a rotational actuator (for example, a motor or magnetic coupling). The rotation of the fiber bundle provides centrifugal kinetic energy to the fluid giving the device pumping capabilities and may create Taylor vortexes to increase mass transfer. Rotation of the fiber bundle increases the relative velocity between the fluid and the hollow fibers and increases the mass transfer. The porosity of the fiber bundle may be varied to enhance gas exchange with the blood. Alternatively, a rotating core may be used with a stationary fiber bundle.
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Federspiel William J.
Frankowski Brian J.
Mack Brendan C.
Morley Scott W.
Rosenberg Meir
Alung Technologies, Inc.
Deak Leslie R
Fulwider Patton LLP
Majcher, Esq. Thomas H.
Wiest Philip R
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