发明名称 |
Flow sensor for an infusion pump |
摘要 |
<p>An infusion pump for delivering a selected medication to a patient is provided with an inductance flow sensor for monitoring and verifying delivery of medication in response to pump operation. The flow sensor comprises a compact inductor coil wrapped about a pump discharge conduit, in combination with a magnetically attractable core pin disposed within the discharge conduit for movement to a position within the inductor coil in response to pump outflow. A control circuit operates with minimal power requirements to monitor coil inductance changes as a result of core pin displacement to confirm medication delivery to the patient in response to pump operation. A magnet mounted at one end of the inductor coil draws and retains the core pin at a position retracted from the coil in the absence of pump outflow.</p> |
申请公布号 |
EP0687476(A2) |
申请公布日期 |
1995.12.20 |
申请号 |
EP19950109053 |
申请日期 |
1995.06.12 |
申请人 |
MINIMED INC. |
发明人 |
SRISATHAPAT, CHAD;YATES, PAUL A. |
分类号 |
A61M5/00;G01F1/56;A61M5/142;A61M5/168;G01P13/00;(IPC1-7):A61M5/168 |
主分类号 |
A61M5/00 |
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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