10 Surgical and medical apparatus and instruments, namely, a filtering system for the sizing and/or separation and/or sorting and/or concentrating of biologic agents or their components including blood, plasma, platelet-rich plasma, platelet-poor plasma, bone marrow aspirate, bone marrow aspirate concentrate, fat aspirate, fat aspirate concentrate, and adipose-derived tissue-SVF; filter pore sizes are expressed in micron diameters