Patent ID: 8398564
Filing Date: 2013-03-19
Classification: A61B,A61M

Abstract:
1. A method for processing two or more simultaneous continuous pressure-related signals derivable from a human or animal body from one or more locations thereof electable from: inside the body, outside the body, inside body cavity, outside body cavity, comprising the steps of obtaining samples of said signals at specific intervals, and in a processing unit converting thus sampled pressure signals into pressure-related digital data with identical time reference, wherein for selectable and simultaneous time sequence windows the method comprises using the processing unit for the further steps of: a) identifying from said digital data single pressure waves related to cardiac beat-induced pressure waves within said two or more simultaneous signals constituting a pressure recording, b) identifying from said digital data pressure waves related to artifacts or a combination of artifacts and cardiac beat-induced pressure waves within said two or more simultaneous signals constituting a pressure recording, c) computing time sequence (TS.x)-related parameters of said single pressure waves during said identical time sequence windows within said two or more simultaneous signals constituting a pressure recording, wherein the method in using the processing unit comprises additional steps of: d) determining relationships between time sequence (TS.x)-related parameters of said identical time sequence windows within said two or more simultaneous signals constituting a pressure recording, said relationships calculated as related time sequence (rTS.x) parameters, and selected as one or more from the group of: d1) 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.Pmin d2) 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.MeanPmin d3) relationship of mean values of systolic maximum pressure of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanPmax), d4) 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.MeanPmax_STD), d5) relationship of mean amplitude values of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeandP), d6) 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), d7) relationship of mean latency of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeandT), d8) relationship of standard deviation of mean latency of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeandT_STD), d9) relationship of mean rise time coefficient of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanRT), d10) 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), d11) relationship of mean wave duration of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanWD), d12) 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), d13) relationship of mean single wave pressure of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanSWP), d14) 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.MeanSWP_STD), d15) relationship of mean diastolic minimum pressure difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_Pmin), d16) 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_Pmin_STD), d17) relationship of mean systolic maximum pressure difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_Pmax), d18) 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_Pmax_STD), d19) relationship of mean amplitude difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_dP), d20) 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), d21) relationship of mean latency difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_dT), d22) 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), d23) 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), d24) 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), d25) relationship of mean wave duration difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_WD), d26) relationship of standard deviation of mean wave duration difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_WD_STD), d27) relationship of mean single wave pressure difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_MeanSWP), d28) relationship of standard deviation of mean single wave pressure difference of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanDiff_MeanSWP_STD), d29) relationship of single wave count of two or more perfect time sequence windows from two or more different pressure signals (rTS.SWCount), d30) relationship of mean wave amplitude of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanWavedP), d31) relationship of mean wave latency of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanWavedT), and d32) relationship of mean wave rise time coefficient of two or more perfect time sequence windows from two or more different pressure signals (rTS.MeanWaveRT), and e) determining said related time sequence (rTS.x) parameters for a selectable number of recordings, said related time sequence (rTS.x) parameters used for formula-based adjustments of time sequence (TS.x)-related parameters of individual pressure-related signals.