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公开(公告)号：US20190126239A1
公开(公告)日：2019-05-02
申请号：US16096530
申请日：2017-04-20
发明人： Hiroaki Fujieda , Yoshiyuki Ueno , Kazumi Tanaka
摘要： A solid fiber has a modified cross-section which satisfies the following (a) to (b): (a) a modification degree Do/Di, in a cross section of the solid fiber, is 1.20 to 8.50 when the inscribed circle diameter is denoted by Di and the circumscribed circle diameter is denoted by Do; and (b) a porous specific surface area of the fiber is not less than 30 m2/g. An adsorbent material comprises not less than 28 vol % of the porous fiber as a fiber bundle. A purification column is formed by arranging the adsorbent material in the straight form in an axis direction of a plastic casing and by attaching an inlet port and an outlet port of a fluid that is to be treated to both ends of the plastic casing. The porous fiber can efficiently adsorb a removal target substance in the fluid that is to be treated, and a purification column incorporates the porous fiber.
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公开(公告)号：US10213543B2
公开(公告)日：2019-02-26
申请号：US14765386
申请日：2014-02-07
发明人： Hiroaki Fujieda , Yoshiyuki Ueno , Kazumi Tanaka
摘要： A blood purification column includes an adsorbent and a casing whose two ends are open ends, wherein the adsorbent is housed inside the casing, and wherein one of two casing ends is a blood inflow-side end portion and another is a blood outflow-side end portion, and wherein a filter is disposed at the blood inflow-side end portion and/or the blood outflow-side end portion of the casing, and wherein the filter satisfies (1)-(3): (1) an opening rate thereof is greater than or equal to 5% and less than or equal to 80%; (2) an equivalent diameter of an aperture thereof is greater than or equal to 1 μm and less than or equal to 5000 μm; (3) a ratio of the equivalent diameter of the aperture thereof to an average circle equivalent diameter of void spaces of the adsorbent is greater than or equal to 45%.
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公开(公告)号：US20190076819A1
公开(公告)日：2019-03-14
申请号：US16084627
申请日：2017-03-28
发明人： Hiroaki Fujieda , Yoshiyuki Ueno , Masayuki Yamada
摘要： A fibrous material includes fiber blends having plural types of solid fibers having a common cross-sectional shape. The composition ratio of each of at least two out of the plural types of fibers to the total of the fiber blends is not less than 5.0%. When, among those plural types of fibers having a composition ratio of not less than 5.0%, fibers having the highest and the lowest surface area increase rates, which are given by the formula (1) below, are respectively designated as the fiber(max) and the fiber(min), the surface area increase rate of the fiber(min) is reduced by 3.0% or more as compared to that of the fiber(max). The composition ratios of the fiber(max) and the fiber(min) to the total of the fiber blends are not less than 30.0% and not less than 8.0%, respectively. The fiber(max) has (a) a surface area increase rate of not less than 1.20 and is (b) a porous fiber with a micropore specific surface area of not less than 5 m2/g. Surface area increase rate=(the circumference of a fiber cross section)/(the circumference of a circle having the same cross-sectional area as the fiber cross section) (1)
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公开(公告)号：US20150374898A1
公开(公告)日：2015-12-31
申请号：US14765386
申请日：2014-02-07
发明人： Hiroaki Fujieda , Yoshiyuki Ueno , Kazumi Tanaka
IPC分类号： A61M1/36
CPC分类号： A61M1/3679 , A61M1/1006 , A61M1/14 , A61M1/36 , A61M1/3627 , A61M1/3643 , A61M1/3644 , A61M1/3652 , A61M1/3672 , A61M2205/75 , B01J20/26 , B01J20/261 , B01J20/262 , B01J20/28 , B01J20/28019 , B01J20/28023 , B01J20/2805
摘要： A blood purification column includes an adsorbent and a casing whose two ends are open ends, wherein the adsorbent is housed inside the casing, and wherein one of two casing ends is a blood inflow-side end portion and another is a blood outflow-side end portion, and wherein a filter is disposed at the blood inflow-side end portion and/or the blood outflow-side end portion of the casing, and wherein the filter satisfies (1)-(3): (1) an opening rate thereof is greater than or equal to 5% and less than or equal to 80%; (2) an equivalent diameter of an aperture thereof is greater than or equal to 1 μm and less than or equal to 5000 μm; (3) a ratio of the equivalent diameter of the aperture thereof to an average circle equivalent diameter of void spaces of the adsorbent is greater than or equal to 45%.
摘要翻译： 血液净化柱包括吸附剂和两端为开放端的壳体，其中吸附剂容纳在壳体内，并且其中两个壳体端部之一是血液流入侧端部，另一个是血液流出侧端部 并且其中过滤器设置在壳体的血液流入侧端部和/或血液流出侧端部，并且其中过滤器满足（1） - （3）：（1）其开口率 大于或等于5％且小于或等于80％; （2）孔的当量直径大于或等于1μm且小于或等于5000μm; （3）其孔径的当量直径与吸附剂的空隙空间的平均圆当量直径之比大于或等于45％。
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公开(公告)号：US11596922B2
公开(公告)日：2023-03-07
申请号：US16096530
申请日：2017-04-20
发明人： Hiroaki Fujieda , Yoshiyuki Ueno , Kazumi Tanaka
IPC分类号： B01J20/26 , B01J20/30 , B01J20/28 , D01D5/247 , D01D5/253 , A61M1/36 , B01D15/00 , B01D15/20 , A61M1/16 , B01J20/285 , D01F6/52 , D01F6/16
摘要： A solid fiber is described, where the solid fiber is characterized by (a) a modification degree Do/Di, in a cross section of the solid fiber of 1.20 to 8.50 where the inscribed circle diameter is denoted by Di and the circumscribed circle diameter is denoted by Do; and (b) a porous specific surface area of not less than 30 m2/g.
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公开(公告)号：US20170333871A1
公开(公告)日：2017-11-23
申请号：US15521469
申请日：2015-10-20
发明人： Hiroaki Fujieda , Yoshiyuki Ueno , Kazumi Tanaka
CPC分类号： B01J20/28023 , A61M1/1672 , A61M1/3679 , B01D15/206 , B01J20/26 , B01J20/261 , B01J20/28 , B01J20/28011 , B01J20/28052 , B01J20/28059 , B01J20/28078 , B01J20/3007 , D01F6/00 , D10B2401/10
摘要： There are provided porous fibers having excellent removal performance with respect to a material to be purified; and a purification column into which an adsorbent material obtained by bundling the fibers is incorporated. The porous fibers satisfying the following conditions (a) and (b) and having a shape in which three or more projected parts are continuously present in the lengthwise direction on the periphery part of a solid-state fiber: (a) The modification degree Do/Di in a cross section is 1.2 to 6.6 when the diameter of the inscribed circle is denoted by Di and the diameter of the circumscribed circle is denoted by Do., and (b) The specific surface area of pores is 50 m2/g or more.
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公开(公告)号：US11135566B2
公开(公告)日：2021-10-05
申请号：US16496633
申请日：2018-03-23
发明人： Aishan Han , Hiroaki Fujieda , Yoshiyuki Ueno
IPC分类号： A61M1/16 , B01D15/18 , B01J20/20 , B01J20/28 , B01J20/285 , D01F1/10 , D01F6/16 , D01F8/10 , B01J20/02 , B01J20/06 , B01J20/26
摘要： The present invention provides: a porous fiber that exhibits both improved adsorption capacity, and suppressed exposure and detachment of particulates; an adsorption column filled with said porous fiber; and a blood purification system in which an adsorption column is connected to a water removal column. The porous fiber according to the present invention has a three-dimensional pore structure formed by a solid fiber, and satisfies all of the following conditions. (1) The porous fiber has particulates having a diameter of not more than 200 μm, and the percentage of area occupied by said particulates having a diameter of not more than 200 μm in a horizontal cross section of the three-dimensional pore structure is at least 3.0%. (2) The porous fiber does not contain said particulates having a diameter of not more than 200 μm in the region within 1.0 μm in the depth direction from the outermost surface.
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公开(公告)号：US20200376465A1
公开(公告)日：2020-12-03
申请号：US16496633
申请日：2018-03-23
发明人： Aishan Han , Hiroaki Fujieda , Yoshiyuki Ueno
IPC分类号： B01J20/285 , A61M1/16 , B01J20/26 , B01J20/06 , B01J20/02 , B01J20/20 , B01J20/28 , B01D15/18 , D01F6/16 , D01F8/10 , D01F1/10
摘要： The present invention provides: a porous fiber that exhibits both improved adsorption capacity, and suppressed exposure and detachment of particulates; an adsorption column filled with said porous fiber; and a blood purification system in which an adsorption column is connected to a water removal column. The porous fiber according to the present invention has a three-dimensional pore structure formed by a solid fiber, and satisfies all of the following conditions. (1) The porous fiber has particulates having a diameter of not more than 200 μm, and the percentage of area occupied by said particulates having a diameter of not more than 200 μm in a horizontal cross section of the three-dimensional pore structure is at least 3.0%. (2) The porous fiber does not contain said particulates having a diameter of not more than 200 μm in the region within 1.0 μm in the depth direction from the outermost surface.
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公开(公告)号：US10265678B2
公开(公告)日：2019-04-23
申请号：US15521469
申请日：2015-10-20
发明人： Hiroaki Fujieda , Yoshiyuki Ueno , Kazumi Tanaka
摘要： There are provided porous fibers having excellent removal performance with respect to a material to be purified; and a purification column into which an adsorbent material obtained by bundling the fibers is incorporated. The porous fibers satisfying the following conditions (a) and (b) and having a shape in which three or more projected parts are continuously present in the lengthwise direction on the periphery part of a solid-state fiber: (a) The modification degree Do/Di in a cross section is 1.2 to 6.6 when the diameter of the inscribed circle is denoted by Di and the diameter of the circumscribed circle is denoted by Do., and (b) The specific surface area of pores is 50 m2/g or more.
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