Influence of blood corpuscles on the ultrafiltration of various proteins.

The ultrafiltration characteristics of a commercial dialyzer were examined by measuring the sieving coefficient (s.c.) for three proteins, i.

Blood compatibility and filtration characteristics of a newly developed polyester polymer alloy membrane.

Background: Many synthetic polymeric membranes have been widely used for blood purification therapies for removing larger solutes and for better blood compatibility.

Methods: Five different filters with polyester polymer alloy (PEPA) membrane (Nikkiso) that included polyvinylpyrrolidone (PVP), that is, standard-pore-size FLX (PEPA with PVP(-)), standard-pore-size FDX (PEPA with PVP(+)), new FDX (PEPA with PVP(++)), larger-pore-size FDY (PEPA with PVP(+)), and new FDY (PEPA with PVP(++)), were evaluated in terms of in vivo blood compatibility and aqueous in vitro sieving coefficient (s.c.