FILTER FOR LEUCOCYTE SEPARATION
PROBLEM TO BE SOLVED: To make a filter have good removing performance and hard to be clogged, by raising the concentration of a quaternary ammonium salt toward downstream in a filter comprising specific kinds of surface fixed porous substrates with different concentrations of a quaternary ammonium s...
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| creator | SHINONOME OSAMI |
| description | PROBLEM TO BE SOLVED: To make a filter have good removing performance and hard to be clogged, by raising the concentration of a quaternary ammonium salt toward downstream in a filter comprising specific kinds of surface fixed porous substrates with different concentrations of a quaternary ammonium salt. SOLUTION: This filter for leucocyte separation is constituted of more than three kinds of surface fixed porous substrates with different concentrations of a quaternary ammonium salt, and the concentration of the quaternary ammonium salt is raised toward downstream. The substrate 1 comprises (1) a porous substrate layer with cationization degree of 0, (2) a porous substrate layer with a cationization degree of 0.2-0.5, and (3) a porous substrate layer with a cationization degree of 0.6-1.0 and higher by 0.2-0.6 than that of (2). Further, the substrate layers are placed from the upstream side of a blood flow passage in the order of (1) the porous substrate layer with cationizaton degree of 0, (2) the porous substrate layer with cationization degree of 0.2-0.5, and (3) the porous substrate layer with cationization degree of 0.6-1.0 and higher by 0.2-0.6 than that of (2). |
| format | Patent |
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SOLUTION: This filter for leucocyte separation is constituted of more than three kinds of surface fixed porous substrates with different concentrations of a quaternary ammonium salt, and the concentration of the quaternary ammonium salt is raised toward downstream. The substrate 1 comprises (1) a porous substrate layer with cationization degree of 0, (2) a porous substrate layer with a cationization degree of 0.2-0.5, and (3) a porous substrate layer with a cationization degree of 0.6-1.0 and higher by 0.2-0.6 than that of (2). Further, the substrate layers are placed from the upstream side of a blood flow passage in the order of (1) the porous substrate layer with cationizaton degree of 0, (2) the porous substrate layer with cationization degree of 0.2-0.5, and (3) the porous substrate layer with cationization degree of 0.6-1.0 and higher by 0.2-0.6 than that of (2).</description><edition>6</edition><language>eng</language><subject>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</subject><creationdate>1999</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990803&DB=EPODOC&CC=JP&NR=H11206876A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990803&DB=EPODOC&CC=JP&NR=H11206876A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SHINONOME OSAMI</creatorcontrib><title>FILTER FOR LEUCOCYTE SEPARATION</title><description>PROBLEM TO BE SOLVED: To make a filter have good removing performance and hard to be clogged, by raising the concentration of a quaternary ammonium salt toward downstream in a filter comprising specific kinds of surface fixed porous substrates with different concentrations of a quaternary ammonium salt. SOLUTION: This filter for leucocyte separation is constituted of more than three kinds of surface fixed porous substrates with different concentrations of a quaternary ammonium salt, and the concentration of the quaternary ammonium salt is raised toward downstream. The substrate 1 comprises (1) a porous substrate layer with cationization degree of 0, (2) a porous substrate layer with a cationization degree of 0.2-0.5, and (3) a porous substrate layer with a cationization degree of 0.6-1.0 and higher by 0.2-0.6 than that of (2). Further, the substrate layers are placed from the upstream side of a blood flow passage in the order of (1) the porous substrate layer with cationizaton degree of 0, (2) the porous substrate layer with cationization degree of 0.2-0.5, and (3) the porous substrate layer with cationization degree of 0.6-1.0 and higher by 0.2-0.6 than that of (2).</description><subject>DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY</subject><subject>DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR</subject><subject>DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY</subject><subject>HUMAN NECESSITIES</subject><subject>HYGIENE</subject><subject>MEDICAL OR VETERINARY SCIENCE</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>SEPARATION</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJB38_QJcQ1ScPMPUvBxDXX2d44McVUIdg1wDHIM8fT342FgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BHoaGRgZmFuZmjsbEqAEA41Ah9g</recordid><startdate>19990803</startdate><enddate>19990803</enddate><creator>SHINONOME OSAMI</creator><scope>EVB</scope></search><sort><creationdate>19990803</creationdate><title>FILTER FOR LEUCOCYTE SEPARATION</title><author>SHINONOME OSAMI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH11206876A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1999</creationdate><topic>DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY</topic><topic>DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR</topic><topic>DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY</topic><topic>HUMAN NECESSITIES</topic><topic>HYGIENE</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>SEPARATION</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>SHINONOME OSAMI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SHINONOME OSAMI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>FILTER FOR LEUCOCYTE SEPARATION</title><date>1999-08-03</date><risdate>1999</risdate><abstract>PROBLEM TO BE SOLVED: To make a filter have good removing performance and hard to be clogged, by raising the concentration of a quaternary ammonium salt toward downstream in a filter comprising specific kinds of surface fixed porous substrates with different concentrations of a quaternary ammonium salt. SOLUTION: This filter for leucocyte separation is constituted of more than three kinds of surface fixed porous substrates with different concentrations of a quaternary ammonium salt, and the concentration of the quaternary ammonium salt is raised toward downstream. The substrate 1 comprises (1) a porous substrate layer with cationization degree of 0, (2) a porous substrate layer with a cationization degree of 0.2-0.5, and (3) a porous substrate layer with a cationization degree of 0.6-1.0 and higher by 0.2-0.6 than that of (2). Further, the substrate layers are placed from the upstream side of a blood flow passage in the order of (1) the porous substrate layer with cationizaton degree of 0, (2) the porous substrate layer with cationization degree of 0.2-0.5, and (3) the porous substrate layer with cationization degree of 0.6-1.0 and higher by 0.2-0.6 than that of (2).</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | 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 |
| title | FILTER FOR LEUCOCYTE SEPARATION |
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