Patent ID: 7285100

Claim:
A system for representation and analysis of pressure variables in a patient comprising: a plurality of pressure sensors generating analog signals; a signal processor comprising a multiplicity of inputs for receiving said analog signals from the sensors, said signal processor comprising a sampling circuit for sampling said analog signals at a first frequency and for providing sampled digital signals at said first frequency; a resampling circuit at a sampling frequency lower than the first frequency for recording time-stamped signals in a memory; a calculator that processes said sampled digital signals, said processing comprising: analyzing the frequency of said sampled digital signals in relation to a range of target frequencies recorded in a memory, said target frequencies comprising at least slow waves frequencies; recording temporal variations of said sampled digital signals corresponding to slow waves of said sampled digital signals, and determining temporal shifts between slow waves corresponding to two distinct inputs of the multiplicity of inputs; and a display for displaying variations of said sampled digital signals and for displaying said temporal shifts between slow waves corresponding to the two distinct inputs.