Analyzer for nitric oxide in exhaled breath with multiple-use sensor

US8206311B2 · kind B2 · utility

Assignee

• Aerocrine AB · SE

Inventors

• David Chazan · Palo Alto, US
• Bhairavi Parikh · Palo Alto, US
• Bryan Flaherty · Rue de l'Église, US
• David Anvar · Sunnyvale, US
• Brian Awabdy · Dublin, US

Key dates

• Filing date: Apr 1, 2009
• Grant date: Jun 26, 2012
• Expiry date: Sep 25, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02A50/20
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A high-sensitivity analyzer for nitric oxide in exhaled breath at levels of 200 ppb or less with a sensor containing cytochrome C is rendered capable of multiple uses without the need for installing a new sensor for each use. This capability is achieved by regenerating the analyzer after each use by purging the sensor and surrounding regions with NOx-free air in a controlled manner, preferably in pulses separated by equilibration periods.