Spirometer with separable flow responsive and indicator means

Details Spirometer with separable flow responsive and indicator means Spirometer with separable flow responsive and indicator means

A - Human Necessities

61

B

73/104

A61B 5/08 (2006.01) G01F 1/07 (2006.01)

Patent

CA 1118609

ABSTRACT OF THE DISCLOSURE A turbine is mounted in an annular cavity, and is provided peripher- ally with exhaled air, which is exhausted axially therefrom. A fixed stator has axially extending, chordally penetrating slots therein, and a calibrating ring adjustable for partial occlusion of the slots. The rotor within the stator rides on jeweled bearings, and comprises fiberglass sheets bonded to the shaft and extending outwardly therefrom. Turns of the rotor are coupled to a stopwatch-type accumulator mechanism by substantially colinear, bent interfer- ing shafts which define a low friction low inertia universal joint. The stop- watch accumulator is readily detachable for sterilization of the turbine/ housing portion.

306992

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