Apparatus for filtering leukocytes from blood cells

Details Apparatus for filtering leukocytes from blood cells Apparatus for filtering leukocytes from blood cells

1993-12-22

1997-01-07

Kim, John

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

1562722, 1562737, 210483, 210488, 210496, 210499, B01D 2956, B01D 2958, B32B 3120

Patent

active

055913377

ABSTRACT:
A blood filtration device encapsulates a filter pad assembly Within a flexible housing. The filter pad assembly includes first and second filter media layers. A first heat and pressure sealed region integrally bonds the peripheries of the first and second media layers together. The flexible housing comprises a peripheral rim aligned with the first heat and pressure sealed region of the first media layer. A second heat and pressure sealed region, formed after the first heat and pressure sealed region, joins the rim of the flexible housing to the first heat and pressure sealed region, thereby forming a composite seal that encapsulates the filter pad assembly within the housing.

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