A combined pH-pressure sensor, mounted in an 8F double-lumen catheter, is described for the investigation of the oesophageal function. The advantages of the sensor design with back-side contacts are outlined. Preliminary in vivo experiments are presented, which show satisfactory results for simultaneous pH and pressure measurements.
Marco Mattavelli, Catherine Dehollain, Diego Ruben Barrettino, Kerim Türe, Mustafa Besirli, Franco Maloberti
Werner Alfons Hilda Van Geit, Anatoly Buchin