| 摘要 |
<p>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 uniformly 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.</p> |
