Filter cartridge assemblies and methods for filtering fluids
    1.
    发明授权
    Filter cartridge assemblies and methods for filtering fluids 有权
    滤芯组件和过滤流体的方法

    公开(公告)号:US06878283B2

    公开(公告)日:2005-04-12

    申请号:US09995888

    申请日:2001-11-28

    Abstract: Filter cartridge assemblies and housings are provided and include a tubular housing having an inner wall, an outer wall, a first end, and a second end. The housings include inner walls with shoulders or other radially-inwardly extending flow directors at the intersections of adjacent sections of the tubular body. The assemblies include a plurality of filter media sections within the housing, and each of the plurality of filter media sections preferably has a different filter media composition. One or more of the filter media sections traverses one or more of the shoulders or other radially-inwardly extending flow directors such that the flow directors evenly direct the flow of fluid through the assembly. The assemblies find particular applicability in dialysis systems.

    Abstract translation: 提供了滤芯组件和壳体,并且包括具有内壁,外壁,第一端和第二端的管状壳体。 壳体包括在管状体的相邻部分的交叉处具有肩部或其他径向向内延伸的导流器的内壁。 组件包括壳体内的多个过滤介质部分,并且多个过滤介质部分中的每一个优选地具有不同的过滤介质组成。 一个或多个过滤介质部分横穿一个或多个肩部或其他径向向内延伸的流动导向器,使得流动导向器将流体流动均匀地引导通过组件。 这些组件在透析系统中具有特别的适用性。

    Ammonia scavenger
    2.
    发明授权
    Ammonia scavenger 失效
    氨清除剂

    公开(公告)号:US4460555A

    公开(公告)日:1984-07-17

    申请号:US526311

    申请日:1983-08-25

    Abstract: A process for making particulate substantially water-insoluble magnesium phosphate product and method of use of the product for removing ammonia from aqueous solutions. The particulate magnesium phosphate product acts as a remarkably effective scavenger wherein under equilibrium conditions only about six (6) grams of the product are required to bind the ammonia (more exactly, ammonium ions) liberated from one (1) gram of the urea, a result far superior to traditional zirconium phosphate (ZP) prior art materials which under ideal conditions require about 17 to 20 grams of ZP per gram of urea. The particulate magnesium phosphate product can also be used for the removal of ammonium ions either produced by enzymatic or non-enzymatic hydrolysis of urea or proteins or amino acids or available as NH.sub.4.sup.+ from its native source. The magnesium phosphate product is made by forming a slurry of water and magnesium hydroxide in the presence of a phosphate ion-containing buffer having a pH of about 6.5 to about 8.5 and reacting the slurry with H.sub.3 PO.sub.4.

    Abstract translation: 一种制备颗粒状基本上不溶于水的磷酸镁产品的方法和使用该产品从水溶液中除去氨的方法。 颗粒状磷酸镁产品作为非常有效的清除剂起作用,其中在平衡条件下,仅需要约六(6)克的产物来结合从一(1)克脲释放的氨(更准确地说是铵离子),一 结果远远优于传统的磷酸锆(ZP)现有技术材料,其在理想条件下需要约17至20克ZP /克尿素。 颗粒状镁磷酸盐产品也可用于去除通过尿素或蛋白质或氨基酸的酶促或非酶水解或从其天然来源获得的NH 4 +产生的铵离子。 磷酸镁产品通过在pH为约6.5至约8.5的含磷酸根离子的缓冲液存在下,通过形成水和氢氧化镁的浆料制备,并使该浆料与H 3 PO 4反应。

    Schiff test for rapid detection of low levels of aldehydes
    3.
    发明授权
    Schiff test for rapid detection of low levels of aldehydes 失效
    Schiff测试用于快速检测低含量的醛类

    公开(公告)号:US4753891A

    公开(公告)日:1988-06-28

    申请号:US890994

    申请日:1986-07-25

    CPC classification number: G01N31/22 Y10T436/200833 Y10T436/202499

    Abstract: An improved Schiff's reagent for detection of aldehydes (such as formaldehyde and gluteraldehyde) contains a para-rosaniline compound (such as para-rosaniline hydrochloride), orthophosphoric acid, a bisulfite compound (such as sodium metabisulfite), a phosphate compound (such as sodium orthophosphate monobasic), and water. This reagent provides lower detection levels and faster results than the reagents of the prior art, and is particularly useful in testing the rinse solutions of reusable medical equipment (such as hemodialysis equipment).

    Abstract translation: 用于检测醛(例如甲醛和戊二醛)的改进的希夫试剂含有对 - 玫瑰基苯胺化合物(例如对 - 对苯基胺盐酸盐),正磷酸,亚硫酸氢盐化合物(如偏亚硫酸氢钠),磷酸盐化合物 正磷酸一碱)和水。 该试剂比现有技术的试剂提供更低的检测水平和更快的结果,并且特别可用于测试可重复使用的医疗设备(例如血液透析设备)的冲洗溶液。

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