发明名称 |
Method and device for determining the hematocrit and/or blood volume |
摘要 |
A method for determining the hemocrit and/or blood volume during an extracorporeal blood treatment with an extracorporeal blood circuit, in which blood is taken with a blood pump via an arterial cannula and an arterial flexible-tube line and blood is fed back via a venous flexible-tube line and a venous cannula. Pressure is measured in the extracorporeal blood circuit and a change in the hematocrit is determined from a change in the pressure. The respective relationship between hematocrit HKT or blood volume RBV and pressure P in the extracorporeal circuit is stored for various cannula diameters and various blood-flow values. The respective relationship for a given cannula diameter and blood flow is selected. The hematocrit and/or blood volume is determined taking account of the selected relationship. |
申请公布号 |
US2005202397(A1) |
申请公布日期 |
2005.09.15 |
申请号 |
US20050507033 |
申请日期 |
2005.04.26 |
申请人 |
ZHANG WEI;BRAUER HELGE;SPICKERMANN REINER;MULLER CARSTEN |
发明人 |
ZHANG WEI;BRAUER HELGE;SPICKERMANN REINER;MULLER CARSTEN |
分类号 |
A61M1/14;A61M1/36;(IPC1-7):C12Q1/00;G01N33/86;C12M1/34 |
主分类号 |
A61M1/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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