MALEKI JAFARABADI, Teimour,ZIAIE, Babek,CHITNIS, Girish,CANTOR, Louis, B.
申请号：
USUS2011/031437
公开号：
WO2011/127185A3
申请日:
2011.04.06
申请国别(地区):
WO
年份:
2012
代理人:
摘要：
A pressure monitoring system is disclosed. The pressure monitoring system includes a stimulation/response circuit configured to transmit a first signal during a stimulation mode, and receive a second signal during a response mode in response to the first signal, and a pressure monitoring apparatus configured to receive the first signal during the stimulation mode and transmit the second signal during the response mode, wherein the pressure monitoring apparatus includes a capacitive pressure sensor assembly providing a variable capacitance in response to variable pressure being applied to the capacitive pressure sensor assembly, an insertion needle assembly having an insertion opening, the insertion needle assembly being coupled to the capacitive pressure sensor assembly, wherein fluid pressure at the insertion opening is fluidly communicated with the capacitive pressure sensor assembly thereby affecting capacitance of the capacitive pressure sensor assembly, and a coil assembly having an inductance, the coil assembly being coupled to the capacitive pressure sensor assembly, wherein the coil assembly and the capacitive pressure sensor assembly form a tank circuit with a variable resonant frequency, and wherein the coil assembly receives the first signal and transmits the second signal a time difference later.Cette invention se rapporte à un système de surveillance dune pression. Le système de surveillance dune pression comprend un circuit de stimulation/de réponse configuré de façon à émettre un premier signal au cours dun mode de stimulation et à recevoir un second signal au cours dun mode de réponse en réponse au premier signal et un appareil de surveillance dune pression configuré de façon à recevoir le premier signal au cours du mode de stimulation et à émettre le second signal au cours du mode de réponse, lappareil de surveillance dune pression comprenant : un ensemble capteur de pression capacitif qui fournit une capacité variable en réponse à la pression varia
