发明名称 |
Capacitance fluid volume measurement |
摘要 |
A fluid volumetric pumping system has a fluid pump and capacitor plates disposed around a pump chamber of the fluid pump. The capacitance between the capacitor plates changes as the volume of fluid in the pump chamber changes. An electrical circuit measures a change in the capacitance between the plates and outputs a signal indicative of the volume of fluid in the pump chamber. The pump having the capacitance sensor of the present invention fluidly connects to a patient. In an embodiment, a peritoneal dialysis system provides dialysate to the patient via the pump, and the capacitance sensor measures the volume of dialysate supplied to and drained from a peritoneal cavity of the patient.
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申请公布号 |
US2003136189(A1) |
申请公布日期 |
2003.07.24 |
申请号 |
US20020054487 |
申请日期 |
2002.01.22 |
申请人 |
LAUMAN BRIAN;HOPPING PETE;KIENMAN RICK;DIN SHAHID;CHILDERS ROBERT W. |
发明人 |
LAUMAN BRIAN;HOPPING PETE;KIENMAN RICK;DIN SHAHID;CHILDERS ROBERT W. |
分类号 |
A61M1/16;A61M5/145;A61M5/168;G01F23/26;(IPC1-7):G01F23/00;G01F17/00 |
主分类号 |
A61M1/16 |
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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