Inline non-invasive pressure monitoring system for pumps
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United States of America Patent
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-
Aug 9, 1994
Grant Date -
N/A
app pub date -
Dec 31, 1992
filing date -
Sep 22, 1989
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention is a pressure sensitive valve that in different forms can be used to provide: an adjustable resistance to flow, adjustable positive or negative pressure relief, negative pressure isolation, isolation of pressure sensitive devices (e.g. pressure monitors) from blood and controlled recirculation between the inlet and outlet of pumps, particularly extracorporeal circulation. The construction of the valve is especially advantageous for extracorporeal circuits, the valve is made from one continuous length of tubing, thereby providing a valve that is more reliable, safer, and has fewer parts. A simple, compact and disposable system to adjust, regulate, and indicate negative or positive pressure applied to the valve is so described.
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Cited Art Landscape
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