Patent ID: 7220387
Filing Date: 2007-05-22
Classification: A61B,G01N

Abstract:
1. A method of measuring the concentration of nitric oxide in a range of 5 to 200 ppb in a gas sample of exhaled breath, said method comprising: providing a first disposable sensor, said first sensor comprising a sensing element comprising cytochrome-c in a sol-gel, wherein said sensing element undergoes a change in the presence of 5 to 200 ppb of nitric oxide; loading said first sensor into a gas analysis device; measuring the concentration of nitric oxide in an exhaled breath sample using said first disposable sensor and said gas analysis device; removing said first disposable sensor from said device; and installing a second disposable sensor into said device, said second disposable sensor likewise comprising a sensing element comprising cyrochrome-c and a sol-gel and undergoing a change in the presence of 5 to 200 ppb of nitric oxide.