The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2005
Filed:
Jun. 10, 2003
Douglas F. Devries, Yucaipa, CA (US);
Michael J. Cegielski, Norco, CA (US);
Warner V. Graves, Jr., Hemet, CA (US);
Malcolm R. Williams, San Clemente, CA (US);
Michael B. Holmes, Riverside, CA (US);
Douglas F. DeVries, Yucaipa, CA (US);
Michael J. Cegielski, Norco, CA (US);
Warner V. Graves, Jr., Hemet, CA (US);
Malcolm R. Williams, San Clemente, CA (US);
Michael B. Holmes, Riverside, CA (US);
Bird Products Corporation, Palm Springs, CA (US);
Abstract
A ventilator device and system comprising a rotating compressor, preferably a drag compressor, which, at the beginning of each inspiratory ventilation phase, is accelerated to a sufficient speed to deliver the desired inspiratory gas flow, and is subsequently stopped or decelerated to a basal flow level to permit the expiratory ventilation phase to occur. The ventilator device is small and light weight enough to be utilized in portable applications. The ventilator device is power efficient enough to operate for extended periods of time on internal or external batteries. Also provided is an oxygen blending apparatus which utilizes solenoid valves having specific orifice sizes for blending desired amounts of oxygen into the inspiratory gas flow. Also provided is an exhalation valve having an exhalation flow transducer which incorporates a radio frequency data base to provide an attendant controller with specific calibration information for the exhalation flow transducer.