[Problems of a suitable pressure-measuring technic for the esophagus and its sphincter]

The functional analysis of the esophagus and its lower sphincter requires an adequate procedure of pressure measurement. The value of studies on the motility and the terminal closing segment, using different pressure transducers, is examined. The pressure measuring device, constructed by us, makes possible the investigation of the mechanical behaviour of the closing muscular segment by means of extension under gradual increases in pressure.