公开(公告)号：US5340480A

公开(公告)日：1994-08-23

申请号：US53074

申请日：1993-04-26

申请人： Ichiro Kawata ,  Takehiko Okamoto ,  Hiroyuki Akasu ,  Kensaku Komatsu

发明人： Ichiro Kawata ,  Takehiko Okamoto ,  Hiroyuki Akasu ,  Kensaku Komatsu

IPC分类号： B01D67/00 ,  B01D69/08 ,  B01D71/68 ,  D01F1/08

CPC分类号： B01D71/68 ,  B01D67/0011 ,  B01D69/08 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2325/022 ,  B01D2325/20 ,  B01D2325/34

摘要： The polysulfone hollow fiber membrane of the invention has an inner dense skin layer composed of a polysulfone and a less amount of a polyvinylpyrrolidone, a content of the polyvinylpyrrolidone in the dense skin layer being higher than that in an outer surface layer. This membrane has excellent biocompatibility and antithrombogenetic ability and is, therefore, useful in body fluid treatment, such as hemodialysis, hemofiltration and hemoconcentration, without clogging with thrombi.

摘要翻译： 本发明的聚砜中空纤维膜具有由聚砜和少量的聚乙烯吡咯烷酮构成的内部致密表皮层，致密表皮层中聚乙烯吡咯烷酮的含量高于外表面层中的含量。 该膜具有优异的生物相容性和抗血栓发生能力，因此可用于体液治疗，如血液透析，血液滤过和血液浓缩，无栓塞堵塞。

公开(公告)号：US4874522A

公开(公告)日：1989-10-17

申请号：US205079

申请日：1988-06-10

申请人： Takehiko Okamoto ,  Akio Ohmory ,  Akinori Sueoka ,  Ichiro Kawata ,  Hiroyuki Akasu

发明人： Takehiko Okamoto ,  Akio Ohmory ,  Akinori Sueoka ,  Ichiro Kawata ,  Hiroyuki Akasu

IPC分类号： B01D69/02 ,  B01D69/08 ,  B01D71/68 ,  D01D5/24

CPC分类号： B01D69/02 ,  B01D69/08 ,  B01D71/68 ,  D01D5/24

摘要： The polysulfone hollow fiber membrane provided by the present invention can prohibit bacteria, bacilli, viruses and the like, and is therefore useful, besides as an industrial filter for water purification, as a membrane for body fluid filtration or condensation. In particular, the polysulfone hollow fiber membrane is, being excellent in removing .beta..sub.2 -MG, markedly useful as a membrane for treating body fluid such as hemodialysis and hemofiltration.

公开(公告)号：US4475973A

公开(公告)日：1984-10-09

申请号：US418295

申请日：1982-09-15

申请人： Toshiaki Tanaka ,  Ichiro Kawata ,  Keisuke Nakagome ,  Koji Matsui

发明人： Toshiaki Tanaka ,  Ichiro Kawata ,  Keisuke Nakagome ,  Koji Matsui

IPC分类号： B01D63/10 ,  B01D31/00

CPC分类号： B01D63/10 ,  B01D2313/02

摘要： A method for easily providing a spiral type-fluid separation module by horizontally rotating a mandrel around its axis from which one or more layer arrangements consisting of a plurality of layer elements hang downward, and winding the layer arrangements about the mandrel without occurance of non-uniform shifting and wrinkles in the layer elements, while applying tension to at least one layer element by means of a tension system.

摘要翻译： 一种用于通过围绕其轴线水平旋转心轴来容易地提供螺旋型流体分离模块的方法，由该多个层元件组成的一个或多个层布置向下悬挂，并且围绕心轴缠绕层结构， 同时通过张力系统向至少一层元件施加张力，从而在层元件中均匀移动和起皱。