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Methods and apparatus for stroke patient treatment

  • US 6,832,609 B2
  • Filed: 12/11/2001
  • Issued: 12/21/2004
  • Est. Priority Date: 12/11/2000
  • Status: Active Grant
First Claim
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1. An apparatus for evaluating the condition of a patient after stroke comprising:

  • a mask;

    a blower to supply breathable gas at a pressure above atmospheric to said mask;

    a flow sensor to generate a flow signal indicative of the patient'"'"'s airflow; and

    a computer to process said flow signal and control said blower wherein said computer is programmed with instructions for;

    controlling said blower to deliver breathable gas at a pressure above atmospheric to a patient; and

    calculating a stroke indicator from said flow signal, said stroke indicator representing information about the patient'"'"'s condition, wherein said instructions for calculating said stroke indicator control an analysis of said flow signal to determine an occurrence of central apnea, and wherein said instructions for calculating said stroke indicator control an analysis of said airflow to determine an occurrence of obstructive apnea, and wherein said instructions for calculating said stroke indicator control a calculation of said stroke indicator as a function of a ratio of said occurrence of central apnea and said occurrence of said obstructive apnea.

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