Patent ID: 7252088
Filing Date: 2007-08-07
Classification: A61M,H02J

Abstract:
1. A method of operating a machine for the treatment of sleep apnea comprising: providing a machine for the treatment of sleep apnea that operates on D.C. power, wherein the machine includes a motor and compressor that are operationally coupled with a mask for delivering pressurized air to a patient; providing a power supply system for providing D.C. power to the sleep apnea machine, wherein the power supply system includes: activating an audible alarm sufficient to wake a sleeping patient when the rechargeable battery is nearly depleted and A.C. power to the A.C.-to-D.C. converter fails but not activating the audible alarm when the rechargeable battery is able to provide power sufficient to operate the machine for the treatment of sleep apnea.