Membrane oxygenator

Details Membrane oxygenator Membrane oxygenator

1983-03-09

1985-12-03

Spear, Frank

Liquid purification or separation

Casing divided by membrane into sections having inlet

Energy recovery from treated liquid

2104935, 422 48, B01D 3100

Patent

active

045564892

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 is 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.

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