发明申请
WO2012122016A1 NON- INVASIVE RADIO FREQUENCY LIQUID LEVEL DETECTION SYSTEM USING PHASE DETECTION
审中-公开
采用相位检测的非侵入射频液位检测系统
- 专利标题： NON- INVASIVE RADIO FREQUENCY LIQUID LEVEL DETECTION SYSTEM USING PHASE DETECTION
- 专利标题（中）： 采用相位检测的非侵入射频液位检测系统
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申请号： PCT/US2012/027476申请日： 2012-03-02
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公开(公告)号： WO2012122016A1公开(公告)日： 2012-09-13
- 发明人: CHEN, Ye , DING, Yuanpang Samuel , MULLER, Matthew , NAJDENI, Gert , TITUS, Joel
- 申请人： BAXTER INTERNATIONAL INC. , BAXTER HEALTHCARE S.A. , CHEN, Ye , DING, Yuanpang Samuel , MULLER, Matthew , NAJDENI, Gert , TITUS, Joel
- 申请人地址： One Baxter Parkway Deerfield, Illinois 60015 US
- 专利权人： BAXTER INTERNATIONAL INC.,BAXTER HEALTHCARE S.A.,CHEN, Ye,DING, Yuanpang Samuel,MULLER, Matthew,NAJDENI, Gert,TITUS, Joel
- 当前专利权人： BAXTER INTERNATIONAL INC.,BAXTER HEALTHCARE S.A.,CHEN, Ye,DING, Yuanpang Samuel,MULLER, Matthew,NAJDENI, Gert,TITUS, Joel
- 当前专利权人地址： One Baxter Parkway Deerfield, Illinois 60015 US
- 代理机构： CONNORS, Robert W. et al.
- 优先权： US61/450,452 20110308; US61/451,725 20110311; US13/253,705 20111005
- 主分类号： G01F23/284
- IPC分类号： G01F23/284 ; A61M1/16
摘要：
A medical fluid system includes a medical fluid pump; a container holding a fluid to be pumped by the medical fluid pump, the fluid at a first time having a first conductivity, the fluid at a second time having a second conductivity; and a radio frequency level sensor positioned in operable relation with the container, the radio frequency operation of the level sensor configured so as to be (i) indicative of a level of the fluid in the container and (ii) at least substantially independent of whether the fluid has the first conductivity or the second conductivity. The medical fluid system can determine the level of medical fluid by measuring the resistance, impedance or phase shift seen by the sensor.
