发明名称 |
Pumping and metering device |
摘要 |
The present invention relates to a pumping device for delivering and metering fluids, in particular medical fluids such as dialysis fluids, with a piston unit having a driving device and a piston and with a membrane unit which has a membrane and a first chamber bordered by the membrane. The pumping device also has a hydraulic unit which has a space to accommodate a hydraulic fluid which is connected to the piston of the piston unit and to the first chamber of the membrane unit. The reliability of metering by such a pumping device is increased by providing a control unit for guaranteeing a predefinable metering rate and/or quantity and also providing a measuring device by means of which the axial position of the piston unit can be determined directly and which can be connected to the control unit.
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申请公布号 |
US6672841(B1) |
申请公布日期 |
2004.01.06 |
申请号 |
US19990308914 |
申请日期 |
1999.11.18 |
申请人 |
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH |
发明人 |
HERKLOTZ MARTIN;SCHNEIDER HANS-PETER;BIGALKE JOERG;DOENIG RAINER;HAECKER JUERGEN |
分类号 |
A61M5/168;F04B13/00;F04B43/00;F04B43/02;F04B43/067;F04B49/06;G01F11/08;(IPC1-7):F04B49/00 |
主分类号 |
A61M5/168 |
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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