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Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea

  • US 5,535,739 A
  • Filed: 06/07/1995
  • Issued: 07/16/1996
  • Est. Priority Date: 05/07/1992
  • Status: Expired due to Term
First Claim
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1. A device for detecting flow limitation in the airway of a patient, comprising:

  • a nasal fitting in fluid communication with the airway of a patient, said nasal fitting having an inlet and a flow restrictor positioned between the inlet and the airway of the patient;

    a sensor in fluid communication with said nasal fitting at a position between said restrictor and the airway of the patient and configured to generate first data values representative of an inspiratory flow of ambient air to the patient;

    a microprocessor configured to determine whether the first data values indicate a flow limitation in the patient and to generate second data values representative of a flow limitation; and

    computer memory configured to store the first data values generated by said flow sensor and the second data values generated by said microprocessor.

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