Methods and devices for separating leukocytes from a leukocyte contaminated blood fraction by use of a rotating membrane filter apparatus. The invention includes methods/devices for preparing substantially leukocyte free platelet concentrate for therapeutic use. The devices of the invention include a...http://www.google.com.au/patents/US5649903?utm_source=gb-gplus-sharePatent US5649903 - Apparatus and methods for generating leukocyte free platelet concentrate
