A system is proposed for the acquisition and the combined displaying of video output signals, for example in the VGA standard, coming from a set of various instruments and apparatuses (2a, 2b, 2c, . . . 2n), each of which reproduces at least a signal representing the evolution of a physiological parameter, a diagnostic image of a part of the body of a person, or both. The system collects a video signal in the section connecting each of the instruments and apparatuses (2a, 2b, 2c, . . . 2n) with a monitor (3a, 3b, 3c, . . . 3n). The video signals are carried to a central unit (1) for collection and processing of the signals and then presented in a single image on a central monitor (7).
