B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 69/00 (2006.01) A61L 31/06 (2006.01) A61L 31/14 (2006.01) A61M 1/34 (2006.01) B01D 67/00 (2006.01) B01D 71/68 (2006.01)
Patent
CA 2426498
A hydrophilized membrane which is obtained by easily hydrophilizing, e.g., a hydrophobic porous membrane and is greatly inhibited from suffering adhesion of blood cells such as erythrocytes, leukocytes, and blood platelets thereto. The hydrophilized hydrophobic porous membrane is characterized by being obtained by immersing a medical supply having a hydrophobic part to be in contact with blood in a solution of a substance having surface activity and then rinsing the medical supply with a solvent in which the surfactant is soluble to thereby adsorb, in an extremely slight amount, the substance having surface activity onto the surface of the part to be in contact with blood. It is further characterized in that the adhesion of blood cells such as erythrocytes, leukocytes, and blood platelets to the membrane is greatly inhibited.
Selon l'invention, une membrane hydrophylisée est obtenue par hydrophylisation facile, notamment, d'une membrane poreuse hydrophobe et est largement protégée contre l'adhésion des cellules sanguines telles que les érythrocytes, leucocytes et plaquettes. La membrane poreuse hydrophobe hydrophylisée est caractérisée en ce qu'elle est obtenue par immersion d'une fourniture médicale ayant une partie phydrophobe devant être en contact avec le sang dans une solution d'une substance ayant une activité superficielle puis par rinçage de la fourniture médicale par un solvant dans lequel le tensio-actif est soluble pour y adsorber, en quantité extrêmement faible, la substance ayant une activité superficielle sur la surface de la partie devant être en contact avec le sang. L'invention est également caractérisée en ce que l'adhésion à la membrane des cellules sanguines telles que les érythrocytes, les leucocytes et les plaquettes est largement empêchée.
Fujita Koji
Kobayashi Akira
Oide Yasuhito
Tani Nobutaka
Kaneka Corporation
Osler Hoskin & Harcourt Llp
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