Method and apparatus for ultrafiltration of blood
    6.
    发明授权
    Method and apparatus for ultrafiltration of blood 有权
    超滤血液的方法和装置

    公开(公告)号:US08603021B2

    公开(公告)日:2013-12-10

    申请号:US13098853

    申请日:2011-05-02

    Abstract: An ultrafiltration filter for an extracorporeal blood circuit having an input for blood withdrawn from a human patient and a blood output for filtered blood to be infused into the patient including: a filter body having a length of at least 20 centimeters (cm) and an interior diameter of no greater than 1.5 cm; an input at a first end of the body to receive the withdrawn blood; an output at a second end of the body to discharge the filtered blood; a filter membrane in the body defining a blood passage through the body, wherein the membrane has an active filter membrane surface area of no greater than 0.2 meters squared (m2) and the filter membrane blocks passage of blood molecules having a molecular weight cut of greater than 60,000 Daltons and a volume of the blood passage in the filter being less than two percent of a cardiac output of the patient, and an ultrafiltrate output to the body and open to a side of the filter surface area opposite to the blood passage.

    Abstract translation: 一种用于体外血液回路的超滤过滤器,其具有从人类患者抽出的血液的输入和用于输入到患者中的过滤血液的血液输出,包括:具有至少20厘米(cm)的长度和内部 直径不大于1.5厘米; 在身体的第一端的输入以接收所抽取的血液; 在身体的第二端处输出以排出经过滤的血液; 身体中的过滤膜限定穿过身体的血液通道,其中膜具有不大于0.2平方米(m2)的活性过滤膜表面积,并且过滤膜阻止具有更大分子量切割的血液分子的通过 超过60,000道尔顿,并且过滤器中的血液通道的体积小于患者的心输出量的2%,并且超滤液输出到身体并且向与血液通道相对的过滤器表面区域的一侧开口。

Patent Agency Ranking