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Portable ventilator system

  • US 20050051168A1
  • Filed: 08/04/2004
  • Published: 03/10/2005
  • Est. Priority Date: 08/04/2003
  • Status: Active Grant
First Claim
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1. A portable ventilator comprising:

  • a Roots blower operating in variable speed mode;

    a speed servo configured to accelerate and decelerate said Roots blower to provide ventilation to a patient; and

    an exhalation servo configured to provide a desired PEEP pressure from an output of said Roots blower.

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