Portable spirometer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 11, 1994
Grant Date -
N/A
app pub date -
Feb 3, 1992
filing date -
Feb 3, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully