The Cassini system is a sophisticated Rectal-Manometry-System available to proctologists and interdisciplinary working surgeons. The Cassini was developed in close cooperation with experienced physicians and clinical researchers. The device offers a variety of benefits, in particular its range of diagnostical functions and its unique operational convenience. The operation of the Cassini system is supported by a high resolution touchscreen-display, where all measure- ments and evaluations are visualized. For documentation purposes all results can be printed easily on an integrated highspeed-thermoprinter.