EP 1941270 A2 20080709 - IMPROVED CARBON DIOXIDE NANOSENSOR, AND RESPIRATORY CO2 MONITORS
Title (en)
IMPROVED CARBON DIOXIDE NANOSENSOR, AND RESPIRATORY CO2 MONITORS
Title (de)
VERBESSERTER KOHLENSTOFFDIOXID-NANOSENSOR SOWIE ATEM-CO2-ÜBERWACHUNGSGERÄTE
Title (fr)
NANODÉTECTEUR DE DIOXYDE DE CARBONE PERFECTIONNÉ ET MONITEURS DU CO2 RESPIRATOIRE
Publication
Application
Priority
- US 2006028079 W 20060718
- US 70094405 P 20050720
- US 73090505 P 20051027
- US 77313806 P 20060213
- US 39049306 A 20060327
- US 43727506 A 20060518
Abstract (en)
[origin: WO2008039165A2] An electronic system and method for detecting analytes, such as carbon dioxide, is provided, using an improved nanostructure sensor (CO2 sensor). The CO2 sensor may comprise a substrate and a nanostructure, such as a one or more carbon nanotubes disposed over the substrate (e.g., as a network). One or more conductive elements may electrically communicate with the nanostructure. A counter or gate electrode may be positioned adjacent the nanostructure. A functionalization material reactive with carbon dioxide may be included, either disposed in contact with the nanostructure or isolated by a dielectric. The sensor may be connected to a circuit responsive to changes in CO2 concentration in the environment. Embodiments are described of medical sensing systems including one or more CO2 sensors. One embodiment comprises a breath sampling cannula which is connected to a sensor unit. In an alternative, the cannula permits supplemental oxygen to be administered, while recovering and measuring analytes in breath samples. The cannula may connect to a portable processor-display unit for monitoring one or more analytes, such as CO2. Another embodiment includes a cannula configured for the monitoring of sleep disorders, such as apnea, comprising one or more sensors disposed adjacent a breath sampling channel, optionally including flow rate or other sensors. The sensors may be connected by wired or wireless links for to a processor/input/display unit. Any of the embodiments may include filters, selectively permeable membranes, absorbents, and the like to precondition the breath sample, may be configured to include complementary chemistry measurements.
IPC 8 full level
C12M 3/00 (2006.01); C12Q 1/68 (2006.01); G01N 21/00 (2006.01); G01N 27/00 (2006.01); G01N 27/12 (2006.01); G01N 33/00 (2006.01); G01N 33/543 (2006.01)
CPC (source: EP)
B82Y 30/00 (2013.01); G01N 27/4146 (2013.01); G01N 33/004 (2013.01); G01N 33/497 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2008039165 A2 20080403; WO 2008039165 A3 20080807; EP 1941270 A2 20080709; EP 1941270 A4 20110316
DOCDB simple family (application)
US 2006028079 W 20060718; EP 06851621 A 20060718