Chemical apparatus and process disinfecting – deodorizing – preser – Blood treating device for transfusible blood – Oxygenator
Patent
1983-11-21
1986-11-11
Spear, Frank
Chemical apparatus and process disinfecting, deodorizing, preser
Blood treating device for transfusible blood
Oxygenator
156175, A61M 103
Patent
active
046222065
ABSTRACT:
A membrane oxygenator has a housing and a plurality of microporous hollow fibers disposed within the housing. A gas inlet and a gas outlet are in communication with the microporous hollow fibers. A blood inlet and blood outlet are so positioned that the blood flowing through the housing will flow generally transversely with respect to the longitudinal extent of the fibers. The fibers are preferably placed at a center to center spacing within a layer of about 1.5 to 4 times the diameter of the fibers. A coating, which is permeable to both oxygen and carbon dioxide, is preferably provided on the exterior of the fibers. Filaments may be positioned between at least some fibers so as to improve spacing and facilitate more efficient transfer between the gas and blood. The fibers may be wound around a frame member and adjacent layers preferably have fibers angularly offset with respect to each other. Methods and apparatus for making membrane oxygenators of the above-described types. In another embodiment, the blood may flow through the fibers and the gas around the fibers.
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Silverman Arnold B.
Spear Frank
University of Pittsburgh
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