EP 1003418 A1 20000531 - RESISTIVE ELEMENT AND CALIBRATED AIR TUBE FOR SPIROMETER
Title (en)
RESISTIVE ELEMENT AND CALIBRATED AIR TUBE FOR SPIROMETER
Title (de)
WIDERSTANDSELEMENT UND GEEICHTE LUFTLEITUNG ZUR SPIROMETRIE
Title (fr)
ELEMENT RESISTIF ET TUBE D'AIR ETALONNE POUR SPIROMETRE
Publication
Application
Priority
- US 9709994 W 19970609
- US 66739696 A 19960621
- US 67019296 A 19960621
Abstract (en)
[origin: WO9748338A1] The present air tube, preferably calibrated air tube, includes resistive element (22) which is located in the hollow space of the tubular portion (12). This resistive element (22) is adapted for providing a linear resistance versus pressure response, and is sized and adapted to cause a pressure difference or differential as air flows in the hollow space across this element. The preferred calibrated air tube has a pressure response, is useful in a spirometer, and includes a tubular member. Calibration information is associated with the air tube to a model pressure response of a model air tube having substantially the same dimensions and configurations as the air tube.
IPC 1-7
IPC 8 full level
A61B 5/091 (2006.01); A61B 5/087 (2006.01); A61B 5/097 (2006.01)
CPC (source: EP)
A61B 5/0876 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
WO 9748338 A1 19971224; AU 3481197 A 19980107; AU 732670 B2 20010426; CA 2257921 A1 19971224; CN 1228015 A 19990908; EP 1003418 A1 20000531; EP 1003418 A4 20000531; JP 2002513296 A 20020508; NZ 333263 A 20000929
DOCDB simple family (application)
US 9709994 W 19970609; AU 3481197 A 19970609; CA 2257921 A 19970609; CN 97197370 A 19970609; EP 97931087 A 19970609; JP 50309198 A 19970609; NZ 33326397 A 19970609