Apparatus and method for diagnostic gas analysis

US8796034B2 · kind B2 · utility

Assignee

• Aerocrine AB · SE

Inventors

• Pontus von Bahr · Stockholm, SE
• Tryggve Hemmingsson · Sollentuna, SE
• Anders Jakobsson · Bissenkamp, SE
• Fredric Gustafsson · Solna, SE

Key dates

• Filing date: Oct 31, 2013
• Grant date: Aug 5, 2014
• Expiry date: Oct 31, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/25375
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A handheld, small but accurate and reliable device for diagnostic NO measurements using a NO sensor, where the parameters governing the taking of the sample are different from the parameters optimal for the accuracy of said NO sensor. By temporarily storing a portion of the exhaled air, and feeding this to the sensor at a flow rate adapted to the NO sensor, the accuracy and sensitivity of a system/method involving NO sensors, in particular electrochemical NO sensors, can be increased. The method for diagnostic NO measurements comprises steps for controlling the inhalation of NO free air, as well as the exhalation, both by built-in means and by audible and/or visual feedback to the patient.