Membrane oxygenator

Details Membrane oxygenator Membrane oxygenator

A - Human Necessities

61

M

128/81.2

A61M 1/14 (2006.01) A61M 1/16 (2006.01) B01D 63/14 (2006.01)

Patent

CA 1229277

MEMBRANE OXYGENATOR Abstract A novel device for mass transfer across a membrane is disclosed, which is particularly suitable for use as a blood oxygenator. The novel device is of the type having a pleated, selectively permeable membrane defining first and second sets of alternating pockets for the flow of a fluid to be treated (e.g. blood) and a treating fluid (e.g. oxygen), and a discrete support screen disposed within each of the pockets of said first and second sets. Of considerable importance it the feature that the support screens are designed to be substantially interdigitated when the assembly of membrane and support screens is held as a compressed stack within the housing of the device. The novel mass transfer apparatus may be utilized as a compact blood oxygenator with excellent gas transfer rates, low pressure drops and negligible trauma to blood components.

449022

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