Method for non-cooperative lung function diagnosis using ultrasound
Assigneendd Medizintechnik AG
InventorsKarl Harnoncourt, Christian Buess
Life of this patent
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Abstract
A method and device are provided for measuring state of lung function of a patient using ultrasonic flow and molar mass measurement. Flow and molar mass signals are recorded during tidal breathing without requiring patient cooperation. Statistical analysis of the recorded data in combination with anthropometirc data and/or data form a questionnaire can be used to diagnose various pulmonary ailments or diseases.
Claims18
Device for non-cooperative lung function diagnosis, comprising
- an ultrasonic gas flow and molar mass sensor based upon a transit-time or time-of-flight method,
- an exchangeable or fixed flow tube having a mouthpiece, and
- software used for non-cooperative tidal breathing analysis of a patient by measuring flow, volume and molar mass, using a statistical method for analysis of said measured signals and subsequently deriving from results of the analysis a lung function status index for diagnostic or monitoring purposes.
Method for non-cooperative lung function diagnosis comprising the steps of using a device including of an ultrasonic gas flow and molar mass sensor based on a transit-time or time-of-flight method, an exchangeable or fixed flow tube with a mouthpiece, and appropriate software used for non-cooperative tidal breathing analysis of a patient by the steps of
- measuring flow, volume and molar mass,
- using statistical method for analysis of said measured signals, and
- subsequently deriving from results of the analysis a lung function status index for diagnostic or monitoring purposes.
Dependencies are inferred from the claim text.