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1. WO2007145328 - BLOOD TREATMENT FILTER AND BLOOD TREATMENT CIRCUIT

Publication Number WO/2007/145328
Publication Date 21.12.2007
International Application No. PCT/JP2007/062148
International Filing Date 15.06.2007
IPC
A61M 1/02 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
02Blood transfusion apparatus
CPC
A61M 1/0222
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
02Blood transfusion apparatus
0209Multiple bag systems for separating or storing blood components
0218with filters
0222and filter bypass
A61M 1/0231
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
02Blood transfusion apparatus
0209Multiple bag systems for separating or storing blood components
0231with gas separating means, e.g. air outlet through microporous membrane or gas bag
A61M 1/0236
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
02Blood transfusion apparatus
0209Multiple bag systems for separating or storing blood components
0236with sampling means, e.g. sample bag or sampling port
A61M 1/3633
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; ; Extra-corporeal blood circuits
3621Extra-corporeal blood circuits
3627Degassing devices; Buffer reservoirs; Drip chambers; Blood filters
3633Blood component filters, e.g. leukocyte filters
Applicants
  • テルモ株式会社 TERUMO KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • 今井 正 IMAI, Tadashi [JP]/[JP] (UsOnly)
  • 大河原 順一 OHKAWARA, Junichi [JP]/[JP] (UsOnly)
  • 村越 正英 MURAKOSHI, Masahide [JP]/[JP] (UsOnly)
Inventors
  • 今井 正 IMAI, Tadashi
  • 大河原 順一 OHKAWARA, Junichi
  • 村越 正英 MURAKOSHI, Masahide
Agents
  • 磯野 道造 ISONO, Michizo
Priority Data
2006-16813416.06.2006JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) BLOOD TREATMENT FILTER AND BLOOD TREATMENT CIRCUIT
(FR) Filtre de traitement du sang et circuit de traitement du sang
(JA) 血液処理フィルターおよび血液処理回路
Abstract
(EN)
Blood treatment filter (1) having housing (2) provided with inflow port (4) and outflow port (6) and, placed in the housing (2), filter unit (7) for filtering of blood containing erythrocytes, platelets and leukocytes as blood cell components, characterized in that the filter unit (7) includes a main filter part capable of substantially trapping preselected blood cell components from blood while allowing the remainder of the blood cell components to pass therethrough and a prefilter part disposed upstream of the main filter part and structured to trap substantially no blood cell components, and that the prefilter part exhibits a microparticle transmission ratio of 70 to 90% as measured by causing a suspension containing microparticles of 6 &mgr;m average particle diameter to flow with a drop distance.
(FR)
L'invention concerne un filtre de traitement du sang (1) qui présente un logement (2) doté d'un orifice d'entrée (4) et d'un orifice de sortie (6) et, placé dans le logement (2), une unité de filtre (7) qui filtre le sang qui contient comme composants cellulaires sanguins des érythrocytes, des plaquettes et des leucocytes, caractérisé en ce que l'unité de filtre (7) comprend une partie principale de filtre capable de séparer essentiellement du sang des composants cellulaires sanguins présélectionnés tout en permettant aux autres composants cellulaires sanguins de passer et une partie de préfiltre placée en amont de la partie principale de filtre et qui ne retient sensiblement pas de composants cellulaires sanguins, et en ce que la partie de préfiltre présente un rapport de transmission des microparticules compris entre 70 et 90 %, mesuré en amenant une suspension qui contient des microparticules d'un diamètre moyen de 6 µm de s'écouler sur une distance de chute.
(JA)
 流入口4と流出口6を有するハウジング2と、ハウジング2内に収納され、血球成分として赤血球、血小板および白血球を含む血液をろ過するフィルター部7とを備える血液処理フィルター1であって、フィルター部7は、血液から実質的に所定の血球成分を捕捉し、残りの血球成分を通過させるメインフィルター部と、メインフィルター部の上流側に配置され、実質的に血球成分を捕捉しないプレフィルター部とを備え、プレフィルター部は、落差により、平均粒子径が6μmの微粒子を含む懸濁液を流したときの微粒子の透過率が70~90%であることを特徴とする。
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