CN108159733B - 氧化锆模块调节 - Google Patents
氧化锆模块调节 Download PDFInfo
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Abstract
本发明涉及用于调节再装填之后用于透析的氧化锆吸附剂模块的装置、系统和方法。所述装置、系统和方法能够在单一系统中或在独立系统中提供氧化锆的调节和再装填。
Description
相关申请交叉参考
本申请要求于2016年11月29日申请的美国临时专利申请第62/427,806号的权益和优先权,其全部公开内容以引用的方式并入本文中。
技术领域
本发明涉及用于调节在再装填之后用于透析的氧化锆吸附剂模块的装置、系统和方法。装置、系统和方法能够在单一系统中或在独立系统中提供氧化锆的调节和再装填。
背景技术
氧化锆用于吸附剂透析来从透析液去除阴离子废物并且捕集可能渗出磷酸锆吸附剂材料外的磷酸根离子。一般来说,在使用之后,氧化锆会被丢弃和替换。因为氧化锆昂贵而且可再装填,吸附剂再处理器可以将氧化锆用强碱溶液处理使得氧化锆材料能被再利用。
对于再处理,通常将氧化锆从吸附剂筒中移除,与其它吸附剂材料分离,用强碱处理,并且随后放入新吸附剂筒中。已知的再处理成本高而且是劳动密集的。
经强碱处理的氧化锆如果用在透析中会消耗全部碳酸盐,产生对患者不安全的碱性溶液。另外,为简化透析期间的碳酸氢盐控制,氧化锆和磷酸锆应处于平衡状态。
因此,需要调节再装填的氧化锆以使氧化锆处于适用于透析的状态中的系统和方法。另外需要能够再装填并调节吸附剂模块内氧化锆的系统和方法。此外需要调节再装填的氧化锆模块以达到与后续用于透析中的磷酸锆模块呈平衡状态的系统和方法。
发明内容
本发明的第一方面涉及一种调节氧化锆模块中的氧化锆的方法。在任何实施例中,方法可包含以下步骤:在流路中泵送调节溶液通过氧化锆模块以便调节氧化锆模块,其中调节溶液具有期望的氧化锆流出物pH值的碳酸氢钠。
在任何实施例中,方法可包含以下步骤:在通过泵送碱溶液通过氧化锆模块来调节氧化锆模块之前在氧化锆模块中再装填氧化锆。
在任何实施例中,方法可包含以下步骤:在泵送调节溶液通过氧化锆模块之前泵送调节溶液通过磷酸锆模块。
在任何实施例中,流路可以是包含磷酸锆模块和氧化锆模块的透析液流路。
在任何实施例中,流路可以是包含磷酸锆模块和氧化锆模块的再装填流路。
在任何实施例中,期望的氧化锆流出物pH值可在5.0与7.5之间。
在任何实施例中,方法可包含以下步骤:在流路中产生调节溶液。
在任何实施例中,产生调节溶液的步骤可包括混合碳酸氢钠溶液与酸。
在任何实施例中,产生调节溶液的步骤可包括混合碳酸氢钠溶液与二氧化碳。
在任何实施例中,调节溶液可泵送通过氧化锆模块5分钟至30分钟之间。
在任何实施例中,泵送通过氧化锆模块的调节溶液的体积可在0.5L与20L之间。
在任何实施例中,方法可包含以下步骤:通过泵送消毒剂溶液通过氧化锆吸附剂模块来给氧化锆吸附剂模块消毒。
在任何实施例中,产生调节溶液的步骤可包含在透析液流路中泵送流体通过第一吸附剂模块;第一吸附剂模块含有固体碳酸氢钠。
作为本发明的第一方面的部分公开的特征可含在本发明的第一方面中,单独地或以组合形式,或遵循所描述的元件中的一个或多个的优选配置。
本发明的第二方面被抽入系统。在任何实施例中,系统可包含:再装填流路,其具有用于收纳氧化锆模块的至少一个收纳隔室;至少一个收纳隔室具有氧化锆模块入口和氧化锆模块出口;与再装填流路流体连接的碱源;与再装填流路流体连接的碳酸氢盐源;泵,其用于将流体从碱源和碳酸氢盐源泵送通过氧化锆模块。
在任何实施例中,系统可包含与再装填流路流体连接的酸源。
在任何实施例中,系统可包含在再装填流路中的静态混合器;其中静态混合器与酸源和碳酸氢盐源流体连接。
在任何实施例中,系统可包含与再装填流路流体连接的二氧化碳源。
在任何实施例中,二氧化碳源可通过流体连接器与碳酸氢盐源流体连接。
在任何实施例中,系统可包含在流体连接器上的压力传感器。
在任何实施例中,系统可包含在再装填流路中的pH值传感器。
在任何实施例中,系统可包含在再装填流路中的至少第二收纳隔室用于收纳磷酸锆模块;第二收纳隔室具有磷酸锆模块入口和磷酸锆模块出口和连接磷酸锆模块出口与氧化锆模块入口的流体连接器。
在任何实施例中,系统可包含与磷酸锆模块入口流体连接的酸源、盐水源或其组合。
作为本发明的第二方面的部分公开的特征可含在本发明的第二方面中,单独地或以组合形式,或遵循所描述的元件中的一个或多个的优选配置。
附图说明
图1显示用于再装填并调节氧化锆模块的流路。
图2显示用于由碳酸氢盐溶液和酸溶液产生调节溶液的流路。
图3显示用于由碳酸氢盐溶液源和二氧化碳源产生调节溶液的流路。
图4显示用于由流经磷酸锆模块的碳酸氢盐溶液产生调节溶液的流路。
图5显示用于再装填磷酸锆模块以及再装填并调节氧化锆模块的流路。
图6显示用于在准备期间调节氧化锆模块的透析液流路。
图7显示用于使用固体碳酸氢盐源调节氧化锆模块的透析液流路。
图8是说明再装填并调节氧化锆模块的步骤的流程图。
图9显示用于再装填并调节氧化锆的再装填器。
图10显示连接在一起的用于再装填并调节多个氧化锆模块的多个再装填器。
具体实施方式
除非另外定义,否则所使用的所有技术和科学术语都具有与所属领域普通技术人员通常所理解的相同的含义。
冠词“一个(种)(a/an)”用于指所述冠词的一个或多于一个(即,指至少一个)语法宾语。例如,“一元件”意指一个元件或多于一个元件。
“酸源”是从中可获得酸性溶液的流体或浓缩物源。
术语“碱溶液”指任何含有氢氧根离子并且pH值大于7.0的水溶液。
“碱源”是从中可获得碱性溶液的流体或浓缩物源。
术语“碳酸氢盐源”指呈固体和/或溶液形式的碳酸氢根离子源。碳酸氢根离子可以任何类型的碳酸氢盐的形式存在。碳酸氢盐源可含有至少一个流体通道,并且包含部件,如导管、阀、过滤器或流体连接接口,其中的任一者均彼此流体连接或与流体流路流体连接。碳酸氢盐源可以独立封闭体的形式或与含有碳酸氢盐源的设备一体地形成的隔室的形式形成。
“盐水源”是从中可获得盐水溶液的流体或浓缩物源。如本文中所使用,盐水溶液可以指包括酸、碱和/或盐的任何溶液。
“二氧化碳源”指含有二氧化碳气体的储存器、加压气缸或储罐。
术语“包括”包含(但不限于)在词语“包括”之后的任何事物。术语的使用表明所列要素是必需的或必选的,但其它要素是可选的并且可能存在的。
术语“调节(conditioning)”或“调节(to condition)”指设计用来在透析中安全并有效使用部件的方法。
如本文中所使用,“调节溶液”是用于调节氧化锆模块的含有碳酸氢根离子的溶液。
“连接器”和“用于连接”描述在两个部件之间形成流体连接的概念,其中流体、气体或气体与流体二者的混合物可从一个部件通过连接器或用于连接的部件流动至另一部件。连接器在其最广泛意义上提供流体连接,并且可包含本发明的任何一个或多个部件之间的任何类型的管道、流体或气体通道或导管。连接可任选地断开并且随后再连接。
术语“由……组成”包含并且限于在短语“由……组成”之后的任何事物。短语表明被限制要素是必需的或必选的,并且不可存在其它要素。
术语“主要由…组成”包含在术语“主要由…组成”之后的任何事物和不影响所描述设备、结构或方法的基本操作的其它元件、结构、动作或特征。
“控制系统”可以是一起作用来维持系统达到一系列所期望的效能规格的部件的组合。控制系统可使用配置成用于交互操作来维持所期望的效能规格的处理器、存储器及计算机部件。控制系统还可包含本领域内已知的用于维持效能规格的流体或气体控制部件和溶质控制部件。
术语“期望的氧化锆流出物pH值”指在透析期间流体流出氧化锆模块的优选pH值范围。
术语“确定(determining)”和“确定(determine)”指确认系统或变量的特定状态或期望状态。
“透析液流路”是透析期间流体将移动的路径。
术语“消毒剂溶液”指能够消灭或去除可再用吸附剂模块中的细菌污染物的任何溶液。
术语“消毒(disinfecting)”、“消毒(disinfected)”或来“消毒”指去除部件或系统中的细菌污染物。
“流路”是流体可以移动通过的一个或多个连接器或部件。
术语“流体”可以是具有非固定形状的容易受外部压力作用而形变的任何物质,如气体或液体。具体地说,流体可以是以任何浓度含有任何溶质的水。
术语“可流体连接”、“流体连接”和“用于流体连接”指将流体或气体从一个位置传递到另一位置的能力。两个位置可以处于所有任何类型的隔室、模块、系统、部件和再装填器中的任一者或多者内或之间。连接可任选地断开并且随后再连接。
“流体连接器”、“流体连接”等等描述在其中流体或气体能够由一个部件流经连接器或连接部件到达另一部件的两个部件之间的连接。连接器在其最广泛意义上提供流体连接,并且可包含本发明的任何一个或多个部件之间的任何类型的管道、流体或气体通道或导管。连接可任选地断开并且随后再连接。
术语“产生”或“来产生”指从一个或多个流体源创造具有指定浓度、pH值、温度和/或体积的流体。
术语“混合”或“来混合”通常指使来自任何源的两个或更多个流体合并在一起。例如,“混合”可包含在流体管线或接头中的位置处的湍流。“混合”的另一实例可包含在被配置成接受来自一个或多个源的流体的部件中接受一个或多个流体且在部件中将流体混合在一起。“混合”的另一实例包含用于溶解一个或多个待溶解于一个或多个流体中的固体部件的一个或多个流体。
“模块入口”是流体、浆液或水溶液可通过其进入吸附剂模块的连接器。
“模块出口”为流体、浆液或水溶液可通过其离开吸附剂模块连接器。
术语“pH值传感器”是指用于测量器皿、容器或流体管线中液体的pH值或H+浓度的装置。
术语“压力传感器”是指用于测量器皿、容器或流体管线中的气体或液体的压力的装置。
术语“泵”指通过施加吸力或压力来引起流体或气体移动的任何装置。
术语“泵送(pumping)”、“泵送(pumped)”或来“泵送”指用泵移动流体。
“再装填”是指处理吸附剂材料以恢复吸附剂材料的功能性能力,从而将吸附剂材料放回在新的透析阶段中再使用或使用的情况中。在一些情况下,“可再装填”吸附剂材料的总质量、重量和/或量保持相同。在一些情况下,“可再装填的”吸附剂材料的总质量、重量及/或量变化。在不受限于本发明的任何一个理论的情况下,再装填过程可涉及用不同离子来更换结合于吸附剂材料的离子,在一些情况下,可能增加或降低系统的总质量。然而,在一些情况下,吸附剂材料的总量将不会被再装填过程改变。当吸附剂材料正在经历“再装填”时,可随后称吸附剂材料为“经再装填的”。
“再装填流路”是当在可再用吸附剂模块中再装填吸附剂材料时流体可移动经过的路径。
“收纳隔室”是再装填器或安置待再装填的吸附剂模块的其它设备内的空间。
术语“饱和”指在给定操作条件下含有最大量的溶质的溶液。
术语“固体碳酸氢钠”指呈固相的碳酸氢钠和可包含颗粒形式、结晶形式或粉末形式或其组合的碳酸氢钠。
“吸附剂筒模块”或“吸附剂模块”意指吸附剂筒的精密部件。多个吸附剂筒模块可装配在一起形成具有两个、三个或更多个吸附剂筒模块的吸附剂筒。在一些实施例中,单一吸附剂筒模块可含有用于透析的所有所需材料。在此类情况下,吸附剂筒模块可以是“吸附剂筒”。
吸附剂“再装填器”是被设计成再装填至少一种吸附剂材料的设备。
“静态混合器”是配置成接受来自一个或多个源的流体并将流体混合一起的部件。静态混合器可包含搅拌流体以进一步混合的部件。
“氧化锆”,亦称水合氧化锆,是去除流体中的阴离子并将被去除的阴离子更换成不同阴离子的吸附剂材料。
“氧化锆吸附剂模块”是含有氧化锆的吸附剂模块。
“磷酸锆”是去除流体中的阳离子并将被去除的阳离子更换成不同阳离子的吸附剂材料。
“磷酸锆吸附剂模块”是含有磷酸锆的吸附剂模块。
氧化锆调节
本发明关注用于在再装填之后调节氧化锆吸附剂模块以再使用于透析中的系统和方法。图1说明用于再装填并调节氧化锆吸附剂模块102的再装填器流路的非限制性实施例。氧化锆吸附剂模块102可置于再装填器的收纳隔室中,并且通过氧化锆模块入口103与再装填流路101流体连接,并且通过氧化锆模块出口104与流出物管线109流体连接。含有强碱,如氢氧化钠,的碱溶液可从与再装填流路101流体连接的碱源105泵送通过氧化锆吸附剂模块102。泵107提供用于泵送流体经过再装填流路101的动力。碱溶液中的氢氧根离子将代替磷酸根和在透析期间结合于氧化锆的其它阴离子。在泵送碱溶液通过氧化锆吸附剂模块102之后,氧化锆将基本上被氢氧根离子饱和,并且处于将从溶液中消耗全部碳酸根,包含CO3 2-、HCO3 -和CO2气体,的状态。通过氧化锆消耗全部碳酸根产生具有治疗上不能接受的pH值的碱性透析液。与避免消耗全部碳酸根,必须调节氧化锆。调节过程使氧化锆吸附剂模块102处于适合用于在透析中再使用的化学状态中。用碳酸氢钠调节氧化锆使氧化锆处于具有碳酸氢盐调节溶液的pH平衡中。为在氧化锆吸附剂模块102中调节氧化锆,将预定的期望的氧化锆流出物pH值的碳酸氢盐溶液从与再装填流路101流体连接的碳酸氢盐源106泵送通过氧化锆吸附剂模块102。阀108控制流体从碱源105和碳酸氢盐源106通过再装填流路101的移动。本领域的技术人员应理解,可以包含其它或替代流体源用于再装填并调节氧化锆吸附剂模块102。可以包含含有消毒剂溶液,如漂白剂、过氧乙酸、柠檬酸或本领域中已知的任何其它消毒剂,的消毒剂源(未图示),用于在再使用之前消毒氧化锆吸附剂模块102。可通过在再装填和调节过程的开始、在调节和再装填之后或与调节或再装填步骤中的任一者并行地泵送消毒剂溶液通过氧化锆吸附剂模块102,用漂白剂、过氧乙酸、柠檬酸或任何其它消毒剂消毒氧化锆吸附剂模块102。可通过使用组合的碱和漂白剂溶液,将氧化锆吸附剂模块102并行地消毒并再装填。或者,可通过使用期望的氧化锆流出物pH值的组合的碳酸氢盐和漂白剂溶液,将氧化锆吸附剂模块102并行地消毒并调节。可包含水源(未图示),用于在消毒或再装填或调节之前或之后漂洗或冲洗氧化锆吸附剂模块102。
将调节溶液泵送通过氧化锆吸附剂模块102持续足够时长以确保完全调节。可将调节溶液泵送通过氧化锆吸附剂模块102持续任何时长,包含5与30分钟、5与10分钟、5与8分钟、7与10分钟、8与12分钟、10与15分钟、10与30分钟、15与25分钟或20与30分钟中的任一者之间。
透析期间,氧化锆吸附剂模块102被与磷酸锆和用于再生透析液的其它吸附剂材料一起使用。为简化治疗和治疗建模,期望达到氧化锆模块与磷酸锆的平衡。磷酸锆与氧化锆的平衡意指在治疗期间氧化锆流出物和磷酸锆流出物的pH值相同。例如,若测定期望的磷酸锆流出物pH值是6.5,则期望的氧化锆流出物pH值也可是6.5并且调节过程可使用pH值6.5的碳酸氢盐溶液来使磷酸锆和氧化锆吸附剂模块处于平衡状态。然而,可通过使用期望的氧化锆流出物pH值的碳酸氢盐溶液将氧化锆调节成任何期望的氧化锆流出物pH值。
碳酸氢盐源106中的碳酸氢盐可包含呈固体和/或溶液形式的碳酸氢根离子。例如,在碳酸氢盐源106中可包含碳酸氢盐干燥筒。可向碳酸氢盐源106添加水溶解干燥筒中的碳酸氢盐或水可流经干燥筒,产生已知浓度的碳酸氢盐溶液用于调节。或者,碳酸氢盐源106可包含预制碳酸氢盐溶液。
碳酸氢盐源106中的碳酸氢盐的浓度可以是产生期望的氧化锆流出物pH值的任何浓度。在某些实施例中,用于调节氧化锆的碳酸氢盐的浓度可在0.1M与饱和之间、0.1M与1.0M之间、0.5M与1.0M之间、0.5M与2.0M之间、1.0M与饱和之间或2.0与饱和之间。期望的氧化锆流出物pH值可以是任何pH值,并且在一优选实施例中是在5.0与7.5之间。在某些实施例中,期望的锆流出物pH值可以是5.0与6.0之间、5.0与6.5之间、5.5与6.5之间、5.5与7.0之间、6.0与7.5之间或6.5与7.5之间中的任一者。在某些实施例中,可以在调节氧化锆的同时加热调节溶液至指定温度。调节溶液可加热至20与100℃之间的任何温度,包含20与35℃之间、20与50℃之间、40与60℃之间、40与80℃之间、50与75℃之间或50与100℃之间。每克氧化锆大约4毫摩尔碳酸氢盐是具有每克氧化锆约0.8毫摩尔磷酸根的磷酸根容量的氧化锆吸附剂模块的完全调节所必需的。本领域的普通技术人员应理解,含有更多氧化锆或具有更高磷酸根容量的氧化锆模块将需要更多碳酸氢盐。例如,碳酸氢盐溶液可以是pH值6.5的1M碳酸氢盐溶液,需要1.3L调节溶液。浓度越高的情况,所需调节溶液将越少。然而,因为在pH值约6.5下大量二氧化碳气体将与碳酸氢盐平衡,所以需要高压来产生稳定的6.5pH值的高浓度的碳酸氢盐溶液。若压力不够高,将出现二氧化碳的脱气和释放。使用的碳酸氢盐调节溶液的浓度和体积可根据期望的氧化锆流出物pH值和系统的压力能力。使用的调节溶液可以任何体积,包含0.5与20.0L、0.5与1.0L、0.75与1.25L、1.0与1.5L、1.0与5.0L、2.5与7.5L、5.0与15.0L、5.0与20.0L或10.0与20.0L中的任一者之间。尽管再装填流路101被作为用于再装填并调节氧化锆吸附剂模块102的流路来说明,本领域的技术人员应理解,可构建不具有碱源105的独立调节设备仅用于调节氧化锆吸附剂模块102。
如图1中所示,可在预混合碳酸氢盐源106中以适当pH值提供期望的氧化锆流出物pH值的含有碳酸氢钠的调节溶液。或者,可由系统产生调节溶液。图2说明用于产生调节溶液的系统。氧化锆吸附剂模块202可置于再装填器或独立调节设备的收纳隔室中,并且通过氧化锆吸附剂模块入口203连接于流路201并且通过氧化锆吸附剂模块出口204连接于流出物管线209。为产生调节溶液,来自碳酸氢盐源205的碳酸氢钠可与来自酸源206的酸混合。泵207提供用于泵送流体经过流路201的动力。酸源206的酸可以是任何酸,包含乙酸、盐酸或本领域中已知的任何其它酸。可以将碳酸氢盐源205中碳酸氢盐的浓度和酸源206中酸的浓度设置为当在流路201中混合时能够产生具有期望的氧化锆流出物pH值调节流体。在流路201中可以包含静态混合器(未图示)来确保酸与碳酸氢盐的混合。或者,可以通过在两管线之间的接头处混合流体流来混合酸与碳酸氢盐。pH值传感器208确保经混合的调节溶液的pH值在期望的氧化锆流出物pH值的可接受范围内。可以包含阀(未图示)来控制来自碳酸氢盐源205和酸源206的流体移动,使得得到具有由所使用的碳酸氢盐与酸的相对量控制的可变pH值的可定制的调节溶液。本领域的技术人员应理解,在单一系统中,图2的流路201中可以包含碱源(未图示)用于在调节之前再装填氧化锆吸附剂模块202。或者,独立再装填器可以再装填氧化锆吸附剂模块202,并且用不同设备进行调节。
图3说明一个使用来自二氧化碳源306的二氧化碳气体产生调节溶液的替代方法。氧化锆吸附剂模块302可置于再装填器或调节设备的收纳隔室中,并且通过氧化锆模块入口303连接于流路301并且通过氧化锆模块出口304连接于流出物管线309。泵307提供用于移动流体经过流路301的动力。与流路301流体连接的碳酸氢盐源305可以含有具有较高pH值的碳酸氢盐溶液。来自二氧化碳源306的二氧化碳气体可以通过流体连接器计量加入碳酸氢盐源305,来产生具有期望的氧化锆流出物pH值的碳酸氢盐溶液。压力调节器308控制二氧化碳气体向碳酸氢盐源305的流动,使得控制混合之后的流体的pH值。压力传感器(未图示)确保二氧化碳的适当压力输送给碳酸氢盐源305。pH值传感器(未图示)可确保产生的溶液的pH值是期望的氧化锆流出物pH值。本领域的技术人员应理解,在单一系统中,图3的流路301中可包含碱源(未图示)用于在调节之前再装填氧化锆吸附剂模块302。或者,独立再装填器可再装填氧化锆吸附剂模块302,并且用不同设备进行调节。
图4说明具有磷酸锆吸附剂模块406的用于产生调节溶液的流路401。氧化锆吸附剂模块402可置于再装填器或调节设备的收纳隔室中,并且通过氧化锆模块入口403连接于流路401,并且通过氧化锆模块出口404连接于流出物管线410。泵407提供用于泵送流体经过流路401的动力。与流路401流体连接的碳酸氢盐源405,可以含有具有任何pH值的碳酸氢盐。第二收纳隔室可以收纳磷酸锆吸附剂模块406。碳酸氢盐溶液流经磷酸锆吸附剂模块406,磷酸锆吸附剂模块406由流体连接器通过磷酸锆模块入口409和磷酸锆模块出口408连接于流路401。碳酸氢盐调节溶液将与磷酸锆吸附剂模块406平衡,产生具有依赖于负载在磷酸锆吸附剂模块406上的氢与钠的相对量的pH值的碳酸氢盐溶液。因此,若磷酸锆吸附剂模块406是在透析中与氧化锆吸附剂模块402一起使用的同一个磷酸锆吸附剂模块,或负载的氢与钠离子的比率与用于透析中的磷酸锆吸附剂模块相同,则流出磷酸锆吸附剂模块406的调节溶液的pH值将是期望的平衡pH值。本领域的技术人员应理解,在单一系统中,图4的流路401中可包含碱源(未图示)用于在调节之前再装填氧化锆吸附剂模块402。或者,独立再装填器可再装填氧化锆吸附剂模块402,并且用不同设备进行调节。在图4中说明的磷酸锆吸附剂模块406可以是专用磷酸锆吸附剂模块,或将被从流路401中去除并且用于后续透析的磷酸锆吸附剂模块。专用磷酸锆吸附剂模块能够在被再装填或替换之前经过多个循环产生调节溶液。调节氧化锆模块需要大约150g磷酸锆。更大磷酸锆吸附剂模块可以用于多个调节循环而无需再装填。例如,含有1,500g磷酸锆的磷酸锆吸附剂模块在被替换或再装填之前可以用于大约10个调节循环。可使用任何大小的磷酸锆吸附剂模块调节氧化锆吸附剂模块。
图5说明用于再装填磷酸锆和氧化锆的再装填流路500,具有用于产生调节溶液的经再装填的磷酸锆吸附剂模块506。氧化锆吸附剂模块502可置于再装填器的收纳隔室中,并且通过氧化锆模块入口503连接于再装填流路501,并且通过氧化锆模块出口504连接于流出物管线520。泵511提供用于移动流体通过氧化锆再装填流路501的动力。可以泵送来自碱源505的碱溶液通过阀512并且通过氧化锆吸附剂模块502来再装填氧化锆。再装填器也可具有第二收纳隔室用于收纳磷酸锆吸附剂模块506,磷酸锆吸附剂模块506可通过磷酸锆模块入口507和磷酸锆模块出口508连接于磷酸锆再装填流路519。通过泵送来自盐水源509的盐水溶液通过阀514和磷酸锆吸附剂模块506来再装填磷酸锆吸附剂模块506。盐水溶液可以含有酸、碱、盐或其组合。在盐水溶液中氢和钠离子代替透析期间由磷酸锆吸附的钾、钙、镁、铵和其它阳离子。泵513提供用于移动流体通过磷酸锆再装填流路519的动力。流出磷酸锆吸附剂模块出口508的流出物可流经阀515到达排放管线517到达废物储存器516或排放口(未图示)。流出氧化锆吸附剂模块502的碱性流出物可以泵送到同一个废物储存器516、排放口(未图示),或单独收集在独立的废物储存器(未图示)中用于后续弃置。
在再装填氧化锆吸附剂模块502和磷酸锆吸附剂模块506之后,可以调节氧化锆吸附剂模块502。可泵送来自碳酸氢盐源510的碳酸氢盐溶液通过磷酸锆吸附剂模块506,产生期望的氧化锆流出物pH值的碳酸氢盐溶液。阀515可切换成将碳酸氢盐溶液导入氧化锆再装填流路501中的流体连接器518和阀512。将碳酸氢盐溶液从阀512泵送通过氧化锆吸附剂模块502来调节氧化锆吸附剂模块502。
图1至图5说明各种调节再装填器或独立调节系统中的再装填氧化锆吸附剂模块的方法。如图6中所示,经再装填的氧化锆吸附剂模块也可在系统的准备期间在透析液流路601中调节。图6是透析液流路601的简化图。处理期间,泵送透析液经过透析液流路601和透析器605。泵604提供用于泵送流体经过透析液流路601的动力。同时,泵送血液通过半透膜606对侧的透析器605。患者血液的废物产物在透析器605中穿过半透膜606进入透析液。通过吸附剂筒609从透析液中去除废物产物,吸附剂筒609包含磷酸锆吸附剂模块603和氧化锆吸附剂模块602。本领域的技术人员应理解,吸附剂筒609中可包含其它材料,如活性碳、脲酶和氧化铝(未图示)。为将系统和吸附剂筒609准备好,泵送含有碳酸氢钠的溶液经过透析液流路601、透析器605和吸附剂筒609。在某些实施例中,溶液也可含有氯化钠。或者,方法可使用碳酸氢钠溶液后接氯化钠溶液,或氯化钠溶液后接碳酸氢钠溶液。将来自水源(未图示)的水、来自氯化钠源(未图示)的氯化钠添加至透析液流路601中,并且通过泵608将来自碳酸氢盐源607的碳酸氢钠添加至透析液流路601中。泵送所得准备溶液经过透析液流路601来准备系统。泵送含有碳酸氢盐的准备溶液通过磷酸锆吸附剂模块603,产生期望的氧化锆流出物pH值的碳酸氢盐溶液,并且随后通过氧化锆吸附剂模块602,调节氧化锆吸附剂模块602。在添加碳酸氢盐之后,准备溶液可在透析液流路601内再循环以便将碳酸氢盐的利用最大化。在某些实施例中,经过透析液流路601的流体的一个通过可在添加碳酸氢盐下进行,并且流体的第二个通过可在不添加额外碳酸氢盐下进行。
在准备期间调节氧化锆吸附剂模块602,需要在透析系统中有额外碳酸氢盐,并且延长准备所需时间。在准备期间调节所需的碳酸氢盐溶液的额外量可为约80至120g碳酸氢钠。在准备期间调节氧化锆吸附剂模块602还使准备过程延长5至15分钟之间。调节再装填器或独立调节系统中的氧化锆吸附剂模块602达成用于治疗的较小碳酸氢盐源和较快准备过程。在任何实施例中,氧化锆吸附剂模块602可部分地在再装填器或调节系统中调节并且部分地在准备期间调节,减少在系统的准备期间所需要的额外碳酸氢盐。在调节之后,过量碳酸氢钠可通过泵610冲洗进排放管线609或用于后续准备步骤。排放管线609可以流体连接于排放储存器611,或者,直接流体连接于排放口(未图示)。
图7是透析液流路701的替代简化图。处理期间,泵送透析液经过透析液流路701和透析器705。泵704提供用于泵送流体经过透析液流路701的动力。同时,泵送血液通过半透膜706对侧的透析器705。患者血液中的废物产物在透析器705中可穿过半透膜706进入透析液。通过吸附剂筒709从透析液中去除废物产物,吸附剂筒709包含磷酸锆吸附剂模块710、氧化锆吸附剂模块702和额外吸附剂模块703。额外吸附剂模块703可含有固体碳酸氢钠或粉末,可用于在透析液流路701中产生调节溶液。本领域的技术人员应理解,吸附剂筒709中可包含其它材料,如活性碳、脲酶和氧化铝(未图示)。在某些实施例中,活性碳、脲酶和氧化铝可包含在具有碳酸氢盐的吸附剂模块703中。或者,固体碳酸氢钠可如磷酸锆一样置于同一个吸附剂模块710中。为将系统和吸附剂筒709准备好,泵送含有氯化钠的溶液经过透析液流路701、透析器705和吸附剂筒709。可将来自水源(未图示)的水和任选地来自氯化钠源的氯化钠(未图示)添加到透析液流路701中。流体流经吸附剂模块703时可溶解吸附剂模块703内的碳酸氢钠来产生含有碳酸氢钠的准备和调节溶液。在某些实施例中,调节溶液也可含有氯化钠。或者,方法可产生碳酸氢钠溶液,随后氯化钠溶液。通过在吸附剂模块703中使用固体碳酸氢钠,降低了对碳酸氢盐源707的大小要求,并且减少了准备和调节时间。泵送所得准备溶液经过透析液流路701来准备系统。泵送含有由穿过吸附剂模块703的流体溶解的碳酸氢盐的准备溶液通过磷酸锆吸附剂模块710,产生期望的氧化锆流出物pH值的碳酸氢盐溶液,并且随后通过氧化锆吸附剂模块702,调节氧化锆吸附剂模块702。
用通过在吸附剂模块703中溶解固体碳酸氢钠而形成的调节溶液调节氧化锆吸附剂模块702需要一定量的碳酸氢钠首先存在于吸附剂模块703中。存在于吸附剂模块703中的碳酸氢盐的量可以是任何足以充分调节氧化锆吸附剂模块702的量。在某些实施例中,置于吸附剂模块703中的碳酸氢钠的量可在40与130克之间、40与60克之间、50与100克之间、50与130克之间、75与100克之间或80与130克之间。所需碳酸氢钠量可根据氧化锆吸附剂模块702的大小改变。在某些实施例中,超出调节氧化锆吸附剂模块702所需的过量碳酸氢钠可置于吸附剂模块703中。在调节之后,过量碳酸氢盐可通过泵712从透析液流路701中冲洗进排放管线711或用于后续准备步骤。在产生碳酸氢盐溶液之后碳酸氢盐溶液可在透析液流路701内再循环以便将碳酸氢盐在期间准备的利用最大化。排放管线711可以流体连接于排放储存器713,或者,直接流体连接于排放口(未图示)。
如所述,调节溶液的pH值可与来自后续用于透析的磷酸锆吸附剂模块的流出物的pH值相同。
图8是说明再装填并且调节氧化锆吸附剂模块达到适当pH值的步骤的流程图。在步骤801中,可测定期望的氧化锆流出物pH值。在步骤802中,用强碱再装填氧化锆吸附剂模块。在步骤803中,产生调节溶液。所描述的产生调节溶液的方法中的任一者均可用于步骤803中,包含:混合碳酸氢盐溶液与酸;混合碳酸氢盐溶液与二氧化碳;泵送碳酸氢盐溶液通过再装填器、调节系统或透析液流路任一者中的专用或非专用磷酸锆吸附剂模块;或泵送水通过透析液流路中的含有固体碳酸氢钠的吸附剂模块。在步骤804中,泵送调节溶液通过氧化锆吸附剂模块。在步骤805中,氧化锆吸附剂模块再使用于透析中。
图9说明用于在氧化锆模块中再装填并调节氧化锆的再装填器的非限制性实施例。再装填器901包含用于收纳氧化锆吸附剂模块905的氧化锆收纳隔室904。再装填器901也可具有磷酸锆收纳隔室902用于收纳磷酸锆吸附剂模块903。磷酸锆吸附剂模块903可以是专用磷酸锆吸附剂模块或将用于后续透析阶段的磷酸锆吸附剂模块。可泵送调节溶液通过磷酸锆吸附剂模块903且随后进入氧化锆吸附剂模块905用于调节。或者,调节溶液可单独地产生或储存,并且无需流经磷酸锆吸附剂模块903。门907在操作期间控制对收纳隔室902和904的进入。碱源和碳酸氢盐源(未图示)可以与用于再装填并调节氧化锆吸附剂模块905的再装填器901流体连接。流体连接(图9中未示出)连接于吸附剂模块903和905的顶部和底部,用于将再装填流体传递至、传递通过以及传递出可再用吸附剂模块903和905。也可提供盐水源(未图示)用于再装填磷酸锆吸附剂模块903。提供使用者界面906来由使用者开始或控制再装填和调节过程。使用者界面906还向使用者提供再装填和调节过程的状态,如每个步骤的完成时间,或直到过程完成为止的时间。当在再装填期间检测到任何问题,如泄漏、阻塞、泵故障或化学品不匹配时,使用者界面906还会提供警告消息。使用者界面906还允许使用者输入期望的氧化锆流出物pH值来控制调节过程。
尽管在图9中显示用于氧化锆和磷酸锆吸附剂模块的收纳隔室902和904,可类似地构建仅具有氧化锆收纳隔室的再装填器901。如所述,调节溶液可单独产生,并且无需流经磷酸锆吸附剂模块。再装填器可具有任何数目的收纳隔室用于氧化锆和磷酸锆吸附剂模块的任何组合,包含1、2、3、4、5、6、7或更多个收纳隔室用于再装填并调节任何数目的氧化锆模块。
如图10中所示,多个再装填器可连接在一起并且连接于单一一组流体源用于共享基础设施。具有磷酸锆收纳隔室1003和氧化锆收纳隔室1002的第一再装填器1001与水源1007、碳酸氢盐源1008、消毒剂源1009和碱源1010流体连接。所使用的磷酸锆模块可以是专用磷酸锆吸附剂模块或将用于后续透析的磷酸锆吸附剂模块。用于在再装填器中再装填磷酸锆和氧化锆,可包含盐水源(未图示)用于磷酸锆再装填。具有氧化锆收纳隔室1005和磷酸锆收纳隔室1006的第二再装填器1004也与相同的水源1007、碳酸氢盐源1008、消毒剂源1009和碱源1010流体连接。任何数目的再装填器可连接于一组共用流体源,包括2、3、4、5、6或更多个再装填器,每个再装填器均与单一一组流体源和单一一组废物储存器流体连接。将多个再装填器连接到单一一组流体源节省空间和材料,并且在临床或医院情境中简化再装填多组可再用模块。每个再装填器可包含独立排放管线和/或独立废物储存器,或每个再装填器可流体连接于共用排放管线。排放管线也可流体连接于排放口、共用储存器或其组合中的任一者。如所述,再装填器可替代地仅具有氧化锆收纳隔室用于仅再装填并调节氧化锆。
所属领域的技术人员应理解,可以依据操作的特定需要而在所描述的系统和方法中作出各种组合和/或修改和变化。而且,被作为本发明的一方面的部分而说明或描述的特征可用于本发明的方面中,单独地或以组合形式,或遵循所描述的元件中的一个或多个的优选配置。
Claims (19)
1.一种调节氧化锆的方法,包括以下步骤:
在流路中泵送调节溶液通过氧化锆吸附剂模块;
泵送碱溶液通过所述氧化锆吸附剂模块以在所述氧化锆吸附剂模块中再装填氧化锆;和
使用所述调节溶液调节所述氧化锆吸附剂模块,所述调节溶液包括期望的氧化锆流出物pH值的碳酸氢钠。
2.根据权利要求1所述的方法,进一步包括以下步骤:在泵送所述调节溶液通过所述氧化锆吸附剂模块之前,泵送所述调节溶液通过磷酸锆吸附剂模块。
3.根据权利要求2所述的方法,其中所述流路是包括所述磷酸锆吸附剂模块和所述氧化锆吸附剂模块的透析液流路。
4.根据权利要求2所述的方法,其中所述流路是包括所述磷酸锆吸附剂模块和所述氧化锆吸附剂模块的再装填流路。
5.根据权利要求1所述的方法,其中所述期望的氧化锆流出物pH值在5与7.5之间。
6.根据权利要求1所述的方法,进一步包括在所述流路中产生所述调节溶液的步骤。
7.根据权利要求6所述的方法,其中产生所述调节溶液的所述步骤包括混合碳酸氢钠溶液与酸。
8.根据权利要求6所述的方法,其中产生所述调节溶液的所述步骤包括混合碳酸氢钠溶液与二氧化碳。
9.根据权利要求1所述的方法,其中泵送所述调节溶液通过所述氧化锆吸附剂模块持续5至30分钟之间。
10.根据权利要求1所述的方法,进一步包括以下步骤:通过泵送消毒剂溶液通过所述氧化锆吸附剂模块来消毒所述氧化锆吸附剂模块。
11.根据权利要求6所述的方法,其中产生所述调节溶液的所述步骤包括在透析液流路中泵送流体通过第一吸附剂模块;所述第一吸附剂模块含有固体碳酸氢钠。
12.一种系统,包括:
再装填流路,包括用于收纳氧化锆吸附剂模块的至少一个收纳隔室;所述至少一个收纳隔室包括氧化锆模块入口和氧化锆模块出口;
与所述再装填流路流体连接的碱源;
与所述再装填流路流体连接的碳酸氢盐源;
泵,用于将流体从所述碱源和所述碳酸氢盐源泵送通过所述氧化锆吸附剂模块。
13.根据权利要求12所述的系统,进一步包括与所述再装填流路流体连接的酸源。
14.根据权利要求13所述的系统,进一步包括在所述再装填流路中的静态混合器;其中所述静态混合器与所述酸源和所述碳酸氢盐源流体连接。
15.根据权利要求12所述的系统,进一步包括通过流体连接器与所述再装填流路流体连接的二氧化碳源。
16.根据权利要求15所述的系统,进一步包括在所述流体连接器上的压力传感器。
17.根据权利要求12所述的系统,进一步包括在所述再装填流路中的pH值传感器。
18.根据权利要求12所述的系统,进一步包括在所述再装填流路中的至少第二收纳隔室,用于收纳磷酸锆吸附剂模块;所述第二收纳隔室包括磷酸锆模块入口和磷酸锆模块出口;和
连接磷酸锆模块出口与所述氧化锆模块入口的流体连接器。
19.根据权利要求18所述的系统,进一步包括与所述磷酸锆模块入口流体连接的酸源、盐水源、或其组合。
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CA2986121A1 (en) | 2018-05-29 |
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