Pressure monitoring and leak detection method and apparatus

Details Pressure monitoring and leak detection method and apparatus Pressure monitoring and leak detection method and apparatus

1982-03-04

1984-04-10

Kamm, William E.

Measuring and testing

With fluid pressure

Leakage

128748, G01N 302, A61B 500

Patent

active

044413572

ABSTRACT:
A closed pressure monitoring system (20) is disclosed in which a pump (27) delivers gas on a supply line (22, 29) through a first accumulator chamber (30) to a load device (21) and returns the gas on a return line (23, 28) through a second accumulator chamber (34) to the pump (27). After pressures in the first and second chambers stabilize, the pressures are compared, and a leak warning signal is given if the compared pressures changed with respect to one another over time. The system is particularly adapted to use a pressure sensor as the load (21) which is implanted within a human patient. The pressure sensor receives air from a restrictor (32) in the supply line (22, 29) and is operative to maintain the pressure in the supply line substantially equal to the pressure surrounding the sensor.

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