The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2006
Filed:
Apr. 03, 2002
David R. Williams, Chicago, IL (US);
Nicole April Wilson, Lombard, IL (US);
Kevin Philip Meade, Westmont, IL (US);
Hansen A. Mansy, Justice, IL (US);
David R. Williams, Chicago, IL (US);
Nicole April Wilson, Lombard, IL (US);
Kevin Philip Meade, Westmont, IL (US);
Hansen A. Mansy, Justice, IL (US);
Illinois Institute of Technology, Chicago, IL (US);
Abstract
A spirometer for measuring fluid flow, particularly associated with exhalation of respiratory patients. The spirometer of this invention preferably has a fluidic oscillator wherein the fluid oscillates within a chamber of the fluidic oscillator. An oscillation frequency of the fluid flow within the chamber is correlated to a flow rate. A computer is used to process input data, such as data representing frequency of the oscillatory flow within the chamber, to a flow rate passing through the spirometer. The spirometer of this invention may have no moving parts, which results in the need for only a design calibration and no periodic calibrations throughout use of the spirometer.