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An Autonomous, Capacitive Sensor Based and Battery Powered Internal Bladder Pressure Monitoring System

By Philippe Jourand and Robert Puers


AbstractA miniature battery powered internal bladder pressure monitoring system is presented, implantable through minimal invasive catheterisation. Prototype circuitry and battery fit into a flexible cylindrical pill measuring ø 5 mm x 40 mm. The device is intended for off-line monitoring of behaviour and evolution of bladder pressure under normal life circumstances. No external devices are mandatory during examination, ensuring maximal ‘unawareness’ of the system for the patient. Power is distributed from a pin-type ø 3 mm lithium cell. The sensor interface was calibrated in a dedicated test-chamber. Finally the circuitry was assembled and successfully tested on two Kapton foils measuring 4.2 x 18 mm2

Publisher: Published by Elsevier B.V.
Year: 2009
DOI identifier: 10.1016/j.proche.2009.07.315
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