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Method and apparatus for exhalation analysis

  • US 5,246,010 A
  • Filed: 10/03/1991
  • Issued: 09/21/1993
  • Est. Priority Date: 12/11/1990
  • Status: Expired due to Fees
First Claim
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1. A peak flow meter apparatus for determining lung expiratory flow rate and quantifying deviations from a peak flow rate comprising,an elongated body having a passageway into which air is blown and from which air exhausts,an air inlet connected to the passageway through which a user blows air,a scale mounted on the body,an indicator slidable on the body and moveable in relation to the amount and force of air blowing through the inlet and moveable along the scale, andzone-indicating means on the elongated body for quantifying each of a plurality of deviations from a pre-selected selected flow rate and cooperating with the slidable indicator to quantify quickly the zone and the respective amount of deviation to which the moveable indicator has been moved to by the force of air.

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