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End tidal respiratory monitor

  • US 5,003,985 A
  • Filed: 10/19/1989
  • Issued: 04/02/1991
  • Est. Priority Date: 12/18/1987
  • Status: Expired due to Term
First Claim
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1. An end-tidal respiratory monitor, comprising:

  • means for detecting a respiratory waveform comprising only expired carbon dioxide produced by a patient during a predetermined time interval and producing an electrical signal representation thereof;

    programmable analyzer means adapted to receive said electrical signal representation of said respiratory waveform, said analyzer means further comprising means for calculating the inspiratory, expiratory and respiratory periods of said respiratory waveform of said patient and for producing respective output signals for each said period; and

    display means for indicating the respiratory characteristics of said patient corresponding to said respective output signals of said analyzer means.

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