Measuring and testing – Fluid pressure gauge – Diaphragm
Patent
1995-06-07
1997-11-25
Dombroske, George M.
Measuring and testing
Fluid pressure gauge
Diaphragm
73717, 73720, 73726, 73727, 128675, 128673, G01L 906, A61B 50215
Patent
active
056914784
ABSTRACT:
A device and method for remotely zeroing a hydrostatic pressure compensation device are described which permit a fluid transducer, such as is used in conjunction with an intravenous catheter for the measurement of blood pressure, to be zeroed regardless of its elevation. A hydrostatic pressure compensation tube is placed in closed fluid communication with both faces of the transducer so as to provide the same pressure to each side. As an example, the transducer may measure the deflection with a piezoresistive or piezoelectric crystal or may alternatively utilize a semiconductor membrane with implanted resistive elements. The transducer may be coupled or formed integral to a manifold. In such a device, the transducer may be zeroed at any vertical position.
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NAMIC's Morse Perceptor Manifold with Compensation Port.
Alexander Robert F.
Barry Robert L.
Dombroske George M.
Felber Joseph L.
Schneider/Namic
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