OESOPHAGEAL SPHINCTER SENSOR

摘要

A sensor (13) for the remote monitoring of the closing action of a human sphincter muscle has a micro-fabricated electrode array (12) formed on a flexible substrate (11) and which is in use deformed by the action of a sphincter muscle. The substrate (11) encircles a core electrode (10) and the variations in capacitance with the electrodes is sensed to produce an electrical data output. A multiplexed RF link to an external module allows monitoring of the output of the sensor. I