Highly water permeable hollow fiber membrane-type blood purifier and process for producing the same

This invention provides a highly water permeable hollow fiber membrane-type blood purifier in which a hydrophilic polymer-containing hydrophobic polymer hollow fiber membrane having a hydrophilic polymer content on the outer surface of the hollow fiber membrane of 25 to 50% by mass, an open area rat...

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Bibliographische Detailangaben
1. Verfasser:	MABUCHI KIMIHIRO,YOKOTA HIDEYUKI,MONDEN NORIKO,KOYAMA SHINYA,KATO NORIAKI,HATAKEYAMA YUUKI,SUNOHARATAKASHI,MASUDA TOSHIAKI
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 MEDICAL OR VETERINARY SCIENCE PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	This invention provides a highly water permeable hollow fiber membrane-type blood purifier in which a hydrophilic polymer-containing hydrophobic polymer hollow fiber membrane having a hydrophilic polymer content on the outer surface of the hollow fiber membrane of 25 to 50% by mass, an open area ratio of the outer surface of 8 to 25%, a thickness deviation ratio of not less than 0.6, a membrane thickness of 10 to 60 m, and a burst pressure of 0.5 to 2 MPa is housed. The blood purifier has a water permeability of 150 to 2000 ml/m2/hr/mmHg and has been exposed to a radiation in such a state that the concentration of oxygen in the atmosphere around the hollow fiber membrane is not less than 0.001% and not more than 0.1%, and the water content is not less than 0.2% by mass and not more than 7% by mass based on the self-weight of the hollow fiber membrane.