Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1034/CHENP/2012 A
(19) INDIA
(22) Date of filing of Application :01/02/2012 (43) Publication Date : 21/06/2013
(54) Title of the invention : METHOD AND APPARATUS OF DETERMINING EXHALED NITRIC OXIDE
(51) International classification :A61B5/08
(31) Priority Document No :09166814.5
(32) Priority Date :30/07/2009
(33) Name of priority country :EPO
(86) International Application No
Filing Date
(87) International Publication No : NA
(61) Patent of Addition to Application
:NA
Number
:NA
Filing Date
(62) Divisional to Application Number
Filing Date
:PCT/IB2010/053361
:23/07/2010
:NA
:NA
(71)Name of Applicant :
1)KONINKLIJKE PHILIPS ELECTRONICS N.V.
Address of Applicant :GROENEWOUDSEWEG 1
EINDHOVEN 5621 BA NETHERLANDS
(72)Name of Inventor :
1)VAN KESTEREN Hans Willem
2)VINK Teunis Johannes
3)WILLARD Nicolaas Petrus
(57) Abstract :
A method and apparatus of determining the level of exhaled nitric oxide (NO) is disclosed. The method involves measuring the
level of exhaled NO (34) and the corresponding exhalation flow rate in one or more exhalations (30 32) of a tidal breathing
manoeuvre performed by a subject. The data is used with a model describing the flow dependence of exhaled NO to derive a value
for exhaled NO corresponding to a fixed flow rate especially to an exhaled NO level corresponding to a fixed flow rate of 50
ml/s. During the manoeuvre a variation in flow restriction (31) may be applied so as to vary the overall flow rate of exhalation.
The method offers a simple and quick way to determine exhaled NO levels with good accuracy and is suitable for use with
children.
No. of Pages : 33 No. of Claims : 13
The Patent Office Journal 21/06/2013 13633