Individualized and calibrated air tube for spirometer
US5997483A · kind A · utility
11Cited by
42References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Sep 17, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0876
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disposable air tubes having tracking information disposed thereon or disclosed. Spirometers for reading the tracking information on the disposable air tubes are also disclosed. The tracking information automatically ensures that air tubes are not re-used among different patients. The tracking information thus reduces or eliminates cross-contamination between patients and increases the accuracy of spirometry readings by reducing condensation buildup within the disposable air tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.