Patent ID: 8684947
Filing Date: 2014-04-01
Classification: A61B,A61M

Abstract:
1. A method for processing continuous pressure-related signals derivable from locations inside or outside a human or animal body or body cavity, comprising the steps of obtaining samples of said signals at specific intervals, and converting thus sampled pressure signals into pressure-related digital data with a time reference, wherein for selectable time sequence windows the method comprises the further steps of: a) identifying in a processing unit from said digital data single pressure waves related to cardiac beat-induced pressure waves, b) identifying in the processing unit from said digital data pressure waves related to artifacts or a combination of artifacts and cardiac beat-induced pressure waves, c) computing in the processing unit time sequence (TS.x)-related parameters of said single pressure waves during individual of said time sequence windows, d) adjusting by the processing unit said time sequence (TS.x)-related parameters of said single pressure waves during individual of said time sequence windows using formula-based adjustments based on related time sequence (rTS.x) parameters, e) creating in the processing unit from said formula-based adjustments factorized time sequence (fTS.x) parameters of said individual time sequence windows of said continuous pressure-related signals, and f) establishing and presenting by the processing unit an analysis output selected from one or more of said factorized time sequence (fTS.x)-related parameters of said single pressure waves during individual of said time sequence windows, wherein said related time sequence (rTS.x) parameters can be selected from the group of: relationship of mean values of starting diastolic minimum pressure of two or more perfect time sequence windows from two or more different pressure signals (rTS.P relationship of standard deviation of mean values of starting diastolic minimum pressure of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanP relationship of mean values of systolic maximum pressure of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanP relationship of standard deviation of mean values of systolic maximum pressure of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanP relationship of mean amplitude values of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeandP), relationship of standard deviation of mean amplitude of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeandP_STD), relationship of mean latency of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeandT), relationship of standard deviation of mean latency of two or more perfect time sequence windows from two or more two different pressure signals (rTS.MeandT_STD), relationship of mean rise time coefficient of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanRT), relationship of standard deviation of mean rise time coefficient of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanRT_STD), relationship of mean wave duration of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanWD), relationship of standard deviation of mean wave duration of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanWD_STD), relationship of mean single wave pressure of two or more perfect time sequence windows from two or more different pressure signals (rTS.Mean relationship of standard deviation of mean single wave pressure of two or more perfect time sequence windows from two or more different pressure signals (rTS.Mean relationship of mean diastolic minimum pressure difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_P relationship of standard deviation of mean diastolic minimum pressure difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_P relationship of mean systolic maximum pressure difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_P relationship of standard deviation of mean systolic maximum pressure difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_P relationship of mean amplitude difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_dP), relationship of standard deviation of mean amplitude difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_dP_STD), relationship of mean latency difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_dT), relationship of standard deviation of mean latency difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_dT_STD), relationship of mean rise time coefficient difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_RT), relationship of standard deviation of mean rise time coefficient difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_RT_STD), relationship of mean wave duration difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_WD), relationship of standard deviation of mean wave duration difference of two or more perfect time sequence windows from two or more two different pressure signals (rTS.MeanDiff_WD_STD), relationship of mean single wave pressure difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_Mean relationship of standard deviation of mean single wave pressure difference of two or more perfect time sequence windows from two or more two different pressure signals (rTS.MeanDiff_Mean relationship of single wave count of two or more perfect time sequence windows from two or more different pressure signals (rTS.SWCount), relationship of mean wave amplitude of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanWavedP), relationship of mean wave latency of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanWavedT), and relationship of mean wave rise time coefficient of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanWaveRT).