Patent ID: 7425201
Filing Date: 2008-09-16
Classification: A61B,A61M

Abstract:
1. A method for estimating effort of breathing of a patient, comprising: receiving respiratory parameters of the patient; calculating respiratory data from the respiratory parameters, wherein the respiratory data comprises one or more of breathing frequency, peak inspiratory pressure, inspiratory time, occlusion pressure at 0.1 seconds after breath initiation trigger time, trigger depth, end-tidal carbon dioxide, variations in the pulse oximeter plethysmogram, and concavity/convexity of a pressure waveform; inputting the respiratory data into a mathematical model created using clinical data; providing at least one output variable from the mathematical model corresponding to effort of breathing; and providing said at least one output variable from the mathematical model to a ventilator to adjust a ventilator setting; wherein the mathematical model is selected from the group consisting of a neural network model, a fuzzy logic model, a mixture of experts model, or a polynomial model.