Surgery – Truss – Pad
Patent
1992-02-03
1994-01-11
Cohen, Lee S.
Surgery
Truss
Pad
128720, 128726, 7386175, 7386176, 482 13, H61B 508
Patent
active
052771954
ABSTRACT:
A portable hand-held spirometer capable of being accommodated in a pocket or handbag, comprising a chassis, an enclosed curved passageway in communication with the chassis including an inlet, for receiving the forced expiration of the user, and an outlet, through which the expiration may be exhausted, a vane pivotally mounted in the passageway, between the inlet and the outlet, for moving under the influence of the user's forced expiration from a first position closing off the passageway to a succession of other open positions forming an ever widening gap between the vane and part of the passageway as the vane moves therethrough, a bottom cover for incrementally measuring various positions of the vane, throughout its travel as a function of time, a device to convert the measurements to various diagnostic parameters applicable to the user's lung condition, and a device to report the values.
REFERENCES:
patent: 2724969 (1955-11-01), Bloser
patent: 4073189 (1978-02-01), Draper
patent: 4294262 (1981-10-01), Williams et al.
patent: 4991591 (1991-02-01), Jones et al.
Mostardi et al. (1979), Microprocessor Application to Standard Spirometry, Journal of Clinical Engineering, vol. 4 No. 4, Oct.-Dec., pp. 347-351.
"Wright Peak Flow Meter" Brochure (1989) and photographs.
"Wright Pocket Peak Flow Meter" Brochure (undated) and photographs.
Casler Brian L.
Cohen Lee S.
Dura Pharmaceuticals, Inc.
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