Oxygenator and method for manufacturing same
AssigneeTerumo Kabushiki Kaisha
InventorsTakeshi Sato, Renjo Takama
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Abstract
An oxygenator having a plurality of porous hollow fiber membranes for gas exchange to treat blood is manufactured by dissolving a silicone compound in an organic solvent having a surface tension of less than 70 dyn/cm to prepare a coating solution, and bringing an inner surface of the hollow fiber membranes into contact with the coating solution under a negative pressure of 50 hPa or more and 150 hPa or less to form a silicone compound-containing coating layer on the inner surface. An antithrombotic polymer compound-containing coat can be provided directly on an outer surface of the hollow fiber membranes.
Claims7
An oxygenator for treating blood, comprising:
- a plurality of porous hollow fiber membranes for gas exchange each of which has an inner surface and an outer surface, wherein the inner surface forms a lumen;
- and
- a housing which directs a gas to the each of the lumens and directs the blood to each of the outer surfaces;
- wherein the inner surface is provided with a silicone compound-containing coating layer;
- and
- wherein the outer surface is provided with an antithrombotic polymer compound-containing coat.
Dependencies are inferred from the claim text.