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Portable drag compressor powered mechanical ventilator

  • US 7,222,623 B2
  • Filed: 12/29/2004
  • Issued: 05/29/2007
  • Est. Priority Date: 10/14/1994
  • Status: Expired due to Fees
First Claim
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1. A ventilator for ventilating lungs of a mammal, said ventilator comprising:

  • a) a compressor, a rotor mounted therein to compress and expel inspiratory gas delivered to the mammal at desired flow rate and pressure by intermittently accelerated and decelerated rotation thereof; and

    b) an oxygen blending apparatus in communication with a gas inflow passageway of the compressor for blending oxygen with ambient air entering the gas inflow passageway to thereby provide oxygen-enriched air within said compressor for subsequent compression and expulsion through an gas outflow passageway of the compressor.

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