发明名称 |
DIFFERENTIAL PRESSURE BASED FLOW SENSOR ASSEMBLY FOR MEDICATION DELIVERY MONITORING AND METHOD OF USING THE SAME |
摘要 |
A differential pressure based flow sensor assembly and method of using the same to determine the rate of fluid flow in a fluid system. The sensor assembly comprises a disposable portion, and a reusable portion. A flow restricting element is positioned along a fluid flow passage between an inlet and an outlet. The disposable portion further has an upstream fluid pressure membrane and a downstream fluid pressure membrane. The reusable portion has an upstream fluid pressure sensor and a downstream fluid pressure sensor. The upstream fluid pressure sensor senses the upstream fluid pressure at a location within the fluid flow passage between the inlet and the flow restricting element. The downstream fluid pressure sensor senses the downstream fluid pressure at a location within the fluid flow passage between the flow restricting element and the outlet. The process utilizes output of the sensors to calculate the flow rate of the fluid.
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申请公布号 |
US2009157040(A1) |
申请公布日期 |
2009.06.18 |
申请号 |
US20080335128 |
申请日期 |
2008.12.15 |
申请人 |
HOSPIRA, INC. |
发明人 |
JACOBSON JAMES D.;BARCLAY BRIAN;BRUMUND RYAN;CHO STEVEN T.;CHOUDHURY HRISHIKESH;FATHALLAH MARWAN A.;JOHNSON TOM;KEELY PATRICK B.;KHAIR MOHAMMAD M;LOWERY MICHAEL G.;WALSWORTH FRANK;ZIEGLER JOHN S. |
分类号 |
A61M31/00;G01F1/42 |
主分类号 |
A61M31/00 |
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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