Patent ID: 8297279
Filing Date: 2012-10-30
Classification: A61M,F04C,G16H,H02P

Abstract:
1. A portable ventilator comprising: a blower for providing gas flow to a patient, the blower comprising an analog sensor, the analog sensor providing continuous rotor position and speed feedback for closed loop control and a signal, to an analog-to-digital conversion circuit, said feedback for generating a self test for determining performance of the blower; a noise attenuation system for reducing noise generated by the blower, said noise attenuation system comprising a microphone to receive noise input and a speaker for generating noise output, wherein said noise output cancels a portion of said noise input; a battery bay configured to retain a removable and rechargeable battery, said rechargeable battery configured to provide power to said blower, to said noise attenuation system, said analog sensor, said analog-to-digital conversion circuit and said speaker; and a docking cradle interface comprising a base, said base providing an electrical interconnection with the portable ventilator, said docking cradle interface also configured to re-charge said removable and rechargeable battery.