Patent ID: 8905024
Filing Date: 2014-12-09
Classification: A61M,G01F

Abstract:
1. A method comprising: one or more flow sensor processing modules of a medical ventilator receiving an output signal of an exhalation flow sensor including a hot-wire anemometer, the output signal indicative of a rate of flow of expired gas by a patient; the one or more flow sensor processing modules compensating for transient thermal response of the hot-wire anemometer resulting from a change in concentration of gas types included within the expired gas by applying a corrective modification to the output signal or a value based thereon that is based at least in part on a mixed gas being supplied to the patient by the medical ventilator, wherein the corrective modification is a function of a magnitude of a setting change of the mixed gas; and wherein the one or more flow sensor processing modules are implemented in one or more microprocessors and one or more computer-readable media, the one or more computer-readable media having instructions tangibly embodied therein that are executable by the one or more microprocessors.