Patent ID: 8567397
Filing Date: 2013-10-29
Classification: A61M,H01M,Y02E

Abstract:
1. A method for operating a positive airway pressure apparatus, comprising: determining a therapy time for a positive airway pressure therapy; providing a current from a battery to power the positive airway pressure apparatus, including operation of a flow generator of the positive airway pressure apparatus, the flow generator being configured to provide pressurized air for the positive airway pressure therapy to a user interface of the positive airway pressure apparatus; determining current drawn from the battery during an elapsed portion of the therapy time; estimating, via a control unit, a remaining battery operational time that the current drawn from the battery can power the positive airway pressure apparatus to deliver the positive airway pressure therapy before a charge in the battery is depleted; comparing the remaining battery operation time with an amount of the therapy time remaining after the elapsed portion; and altering the operation of the positive airway pressure apparatus to modify current flow from the battery, wherein delivery of the positive pressure therapy is maintained throughout the therapy time.