Equipment for analysing biological signals representing intracranial pressure and blood pressure variations

A system for representation and analysis of pressure variables comprising pressure sensors [blood pressure, Intra-cardiac pressure], processing means the signals supplied by said sensors, and display means of the variations of said signals , so that the processing means comprise a plurality of inputs for receiving analog signals from different sensors, characterized in that each input is connected to a sampling circuit which supplies a digital signal of a computer device used to perform treatments comprising: - sampling again the signals displayed or recorded in blocks of N points, N being a power of two, - frequency analysis of said signal obtained by sampling over a range of white frequencies or stochastic , chosen from the waves of type B, infra B and / or ultra B, recorded in a memory, for visualizacióny recording temporal variations of the signals corresponding to the slow waves, - determination of lag or time lag between slow waves of signals corresponding to two different inputs.