D - Textiles – Paper – 01 – F
Patent
D - Textiles, Paper
01
F
18/15, 128/81.2
D01F 6/06 (2006.01) A61M 1/18 (2006.01) A61M 1/34 (2006.01) B01D 67/00 (2006.01) B01D 71/26 (2006.01) C08J 9/26 (2006.01) D01D 5/247 (2006.01)
Patent
CA 1310159
ABSTRACT OF THE DISCLOSURE A porous polypropylene hollow fiber membrane is disclose which is characterized by the fact that the solid phase in the inner surface region thereof is formed with particles of polypropylene closely fused and joined to give rise to a continuous phase while partially exposed through the surface thereof, the solid phase in the interior and the outer surface region thereof is formed with particles of polypropylene interconnected in the direction of axis of fiber to give rise to a multiplicity of lumps of polypropylene, and the interstice between these solid phases has continuous pores interconnected in the form of a three-dimensional network. When this porous polypropylene hollow fiber membrane is used in an artificial lung, without reference to the choice between the type adapted to pass blood inside the hollow fiber membrane, it exhibits a high gas-exchange capacity without infliction of injury upon blood cells, aggravation of pressure loss, or leakage of blood plasma.
556829
Kido Kousuke
Nagaki Shoichi
Seita Yukio
Tatebe Ken
Macrae & Co.
Terumo Kabushiki Kaisha
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