DEVICE FOR GASTROENTERIC TRACT DIAGNOSTICS "GASTROSCAN" (VARIANTS) Russian patent published in 1997 - IPC

FIELD: medical engineering. SUBSTANCE: device has system of intragastral PH-probes and equipment including the amplifiers of signals coming from probe electrodes, analog-to-digital converter, controller, and indication facilities. True diagnostic information is obtained due to the fact that device has auxiliary operational amplifier placed in channel of every probe which is installed between output of supporting electrode and common input of main amplifiers of signals of probe measuring electrodes. Device variants differ in design of controller, indication facilities, in presence of unit of data temperature correction, and in connection of elements. EFFECT: truth of obtained diagnostic information. 3 cl, 3 dwg