Peak flow meter
US5565630A · kind A · utility
14Cited by
33References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 11, 1995 |
| Grant date | Oct 15, 1996 |
| Priority date | — |
| Expiry date | May 11, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0871
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved peak flow meter for measuring the peak flow of exhaled air including an indicator and one or a plurality of vents designed so that the indicator provides a logarithmic measurement of the exhaled air. Also provided is a peak flow meter adaptable for low and high flow rate applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.