Novel RFID pressure sensor on trachaeotomy tubing

Abstract

A tracheal tube (1) has an inflatable sealing cuff (13, 113) and a pressure sensor (20, 120) in the form of an RFID tag (20, 120) mounted on the shaft (10) of the tube under the cuff to measure pressure within the cuff. Alternatively, the sensor could be o mounted on the cuff itself and be responsive to pressure exerted by the cuff against the tracheal wall