Pressure measurement device for fluids flowing in lines

Details Pressure measurement device for fluids flowing in lines Pressure measurement device for fluids flowing in lines

1990-05-30

1991-09-03

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

73719A, G01L 708, G01L 900

Patent

active

050442031

ABSTRACT:
The invention relates to a pressure measurement device (1) for fluids flowing in lines (5, 6), particularly for the flexible tubing lines of pressure-controlled roller pumps (22) for use in arthroscopy and urethroscopy. A membrane (8,8') is provided such that it is impacted on the inside by the fluid. A first pressure sensor (12) is connected to the outside of the membrane for measurement of fluid pressure. The first pressure sensor is connected to an evaluating electronic unit.
A second pressure sensor (13) is connected to the evaluating electronic unit and is assigned to the outer side of membrane (8,8'), so that it is possible to effect a pressure monitoring based on the second pressure measurement, e.g., in the form of a measurement of pressure difference.

REFERENCES:
patent: 2420148 (1947-05-01), Ostergren
patent: 4702675 (1987-10-01), Aldrovandi et al.

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