Spirometer

Details Spirometer Spirometer

2006-08-22

2006-08-22

Nasser, Robert L. (Department: 3736)

Surgery

Diagnostic testing

Respiratory

C600S538000

Reexamination Certificate

active

07094208

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.

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