发明名称 |
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 |
EP1480695(A1) |
申请公布日期 |
2004.12.01 |
申请号 |
EP20030706352 |
申请日期 |
2003.01.09 |
申请人 |
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH |
发明人 |
ZHANG, WEI;BRAUER, HELGE;SPICKERMANN, REINER;MUELLER, CARSTEN |
分类号 |
A61M1/14;A61M1/36;(IPC1-7):A61M1/36 |
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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