Pressure measurement device for fluids flowing in lines
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United States of America Patent
Stats
-
Sep 3, 1991
Grant Date -
N/A
app pub date -
May 30, 1990
filing date -
May 31, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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