Fault diagnosis in CPAP and NIPPV devices
US8069854B2 · kind B2 · utility
29Cited by
47References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2009 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Feb 2, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/40
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A ventilation device for non-invasive positive pressure ventilation (NIPPV) or continuous positive airway pressure (CPAP) treatment of a patient has a gas flow generator, a gas delivery circuit optionally including a humidifier, a controller and sensors monitoring values of operational parameters of the device. The device further includes one or more relationships stored in data storage of the controller relating combinations of parameter values as being indicative of fault conditions of the device operation, the sensors and/or the fault detection process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.