Separation membrane for blood treatment and blood treatment device having same membrane incorporated therein

The purpose of the present invention is to provide a separation membrane for blood treatment with which, even when subjected to radioactive sterilization in a dry state, blood compatibility is excellent and elution of nitric acid ions from the inside surface is reduced, and a blood treatment device...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KOIZUMI TOSHINORI, HATTORI MAKIKO, ICHI TAKAHIRO, SAKABE TERUMI
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HUMAN NECESSITIES HYGIENE MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS MEDICAL OR VETERINARY SCIENCE NATURAL OR ARTIFICIAL THREADS OR FIBRES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SEPARATION SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS SPINNING TEXTILES TRANSPORTING
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Beschreibung
Zusammenfassung:	The purpose of the present invention is to provide a separation membrane for blood treatment with which, even when subjected to radioactive sterilization in a dry state, blood compatibility is excellent and elution of nitric acid ions from the inside surface is reduced, and a blood treatment device in which the same membrane is incorporated. The present invention is a separation membrane for a blood treatment device formed from at least a polysulfone-based resin and polyvinyl pyrrolidone, wherein intermediate water accounts for at least 40% of the water that is present at the separating surface when the separation membrane in a dry state is hydrated to the water content saturation point; the water content of the separation membrane for blood treatment is 10% or less; and the separation membrane has been subjected to radioactive sterilization.