Patent ID: 8660971
Filing Date: 2014-02-25
Classification: G16H,G16Z

Abstract:
1. A system configured to detect respiratory insufficiency, the system comprising: (a) one or more processors configured to obtain information related to the breathing of a subject, and to execute one or more modules, the one or more modules comprising: (1) a parameter module configured to determine parameters of the breathing of the subject based on the information obtained by the processor, wherein the parameters are determined on a per preliminary breath basis, wherein the preliminary breath basis refers to individual breaths and not to a quality of the breaths, but only a level of analysis in identifying respiration, (2) a key parameter module configured to infer a value for a key parameter of the breathing of the subject on a per preliminary breath basis from the parameters determined by the parameter module, wherein the key parameter is a parameter not directly derivable from the information obtained by the processor, further wherein the key parameter module includes an artificial neural network that models a relationship between a predetermined set of breathing parameters and the key parameter, wherein responsive to inputs of the breathing parameters for a given preliminary breath, the artificial neural network outputs the value for the key parameter for the given preliminary breath, and (3) a classification module configured to detect respiratory insufficiency in the breathing of the subject by (i) comparing the inferred value of the key parameter for a given preliminary breath to a predetermined threshold, (ii) classifying, in response to the comparison, individual preliminary breaths as being (ii)(a) valid, productive breaths or (ii)(b) artifact, deficient breaths, respectively, and (iii) responsive to the classification of individual preliminary breaths, determining an overall respiratory insufficiency, wherein determining the overall respiratory insufficiency includes determining a respiratory rate to convey sufficiency of respiration of the subject, wherein (iii)(a) responsive to detection of a valid, productive breath, updating a calculation of respiratory rate to reflect the detected valid, productive breath, and (iii)(b) responsive to detection of an artifact, deficient breath, not updating the calculation of respiratory rate until a next valid, productive breath is detected, wherein the parameters determined by the parameter module include values determined by aggregating predetermined sets of samples of CO