B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 39/08 (2006.01) A61M 1/34 (2006.01) B01D 39/16 (2006.01)
Patent
CA 2102299
A filter material and method for filtering leucocytes from a fraction of or whole human blood, comprises using a shape- sustaining laid textile web having a thickness of between about 2 millimeters to about 12 millimeters and a bulk density of about 0.05 to 0.4 g/cm3. The web has a plurality of interlocked, staple, textile fibers (5) with average deniers between about 0.05 and 0.75 and average lengths between about 3 millimeters and 15 millimeters. The textile fibers (5) are substantially un- iformly distributed in the web so as to form a matrix of the textile fibers (5) with spaces (7) between adjacent interstices (6) of interlocked fibers (5). A plurality of fibrillated particles (10) of a polymeric material, e.g. a textile fiber material, having a surface area of between 5 and 60 square meters per gram are substantially disposed within the spaces (7) of the matrix.
Heagle David G.
Hiers John J.
Lydall Inc.
Oyen Wiggs Green & Mutala Llp
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