05868133 is referenced by 130 patents and cites 126 patents.

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. Stored, individualized compressor characterization information is used to control the acceleration and deacceleration of the rotating compressor.

Title
Portable drag compressor powered mechanical ventilator
Application Number
324172
Publication Number
5868133
Application Date
February 3, 1997
Publication Date
February 9, 1999
Inventor
Michael B Holmes
Riverside
CA, US
Malcolm R Williams
San Clemente
CA, US
Warner V Graves Jr
Hemet
CA, US
Michael J Cegielski
Norco
CA, US
Douglas F DeVries
Yucaipa
CA, US
Agent
Stetina Brunda Garred & Brucker
Assignee
Bird Products Corporation
CA, US
IPC
F16K 31/02
A62B 7/00
A61M 16/00
View Original Source