Pressure-balanced telemetric pressure sensing system and method therefore

摘要: A differential pressure sensing device is fully implanted in the body of a patient to monitor internal such as intracranial pressure. movable element sensor communicates on one side with be measured and other an external which applied by pressurizer-control system communicated through intact skin. An imbalance two opposing pressures causes displacement changes physical characteristic sensor, resonant frequency tuned L-C circuit. This change detected outside detection system, swept radio oscillator. The varied until detector senses that are balanced element, at point equals pressure, former read out.