Abstract
Gas transfer and membrane resistance of a recently developed capillary oxygenator (0.3m2) consisting of multilayered hollow fiber (MHF) with polyurethane membrane (thickness less than 1 μm) sandwitched by microporous polyethylene membrane was compared with those of a silastic hollow fiber (SHF) oxygenator (0.28m2, thickness 100μm) in both the gas-gas (G-G) and gas-water (G-W) tests in in vitro experiments. O2 and CO2 transfer and membrane resistance were almost the same in the MHF and SHF in the G-G test. However, CO2 transfer of the MHF was better than that of the SHF in the G-W test.
