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CPAP apparatus

  • US 7,364,140 B2
  • Filed: 09/29/2006
  • Issued: 04/29/2008
  • Est. Priority Date: 10/13/1999
  • Status: Expired due to Fees
First Claim
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1. A continuous positive airway pressure (CPAP) apparatus to supply pressurized breathable gas to a patient, said apparatus comprising:

  • a flow generator having a gas inlet and a gas outlet;

    a humidifier having a gas inlet coupled to the gas outlet of the flow generator; and

    a filter operatively positioned between the gas outlet of the flow generator and the gas inlet of the humidifier,wherein said humidifier comprises;

    a hollow body adapted for at least partial filling with water to a predetermined maximum water level;

    a heating element to heat the water in the body; and

    a flow divider adapted to divide the interior of the body above the maximum water level into a relatively dry gas region and a relatively wet gas region,wherein the gas inlet to the body and a gas outlet from the body is above the maximum water level, andwherein the flow divider of the humidifier includes a flow dividing plate that divides the interior of the body above the maximum water level into a relatively dry gas region above the plate and a relatively wet gas region below the plate.

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