Peak flow meters

Details Peak flow meters Peak flow meters

1998-02-02

2000-01-04

O'Connor, Cary

Surgery

Diagnostic testing

Respiratory

600528, 482 13, A61N 500

Patent

active

060104600

ABSTRACT:
A peak flow meter has an element (4) displaceable along a hollow body (2) by the exhalation of a subject, and means for indicating the maximum displacement of that element as a measure of peak flow. Pre-set markers (20) are located at selected positions to indicate selected displacement values. The markers are in the form of elements that are snap-fitted onto the meter body at chosen positions and they have a toothed interengagement (12,28) with the body as they snap-fit into place. Accidental or careless movement of the markers is thereby precluded while permitting ready placement when required

REFERENCES:
patent: 3958565 (1976-05-01), Wright
patent: 4499905 (1985-02-01), Greenberg et al.
patent: 5224487 (1993-07-01), Bellofatto et al.
patent: 5246010 (1993-09-01), Gazzara et al.
patent: 5253651 (1993-10-01), Stockwell et al.
patent: 5540234 (1996-07-01), Lalui
patent: 5565630 (1996-10-01), Shene
Extracts from Peak Performance, Guillermo Mendoza, M.D.; Published 1988.
Extract from 3M Health Care, Peak Flow Meter User Instructions, date unknown.

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