Method and apparatus of analyzing respiratory signals corresponding to changes in subject's loads applied to bed
US8491490B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2007 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Sep 22, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An analyzing apparatus comprises a first counter part and a second counter part. The first counter part determines a significant respiratory disorder pattern based on the average of multiple amplitudes included in a respiratory signal, and counts the number of respiratory disorders. The second counter part that determines, when the number of respiratory disorders per unit time counted by the first counter part is greater than a predetermined number, a significant respiratory disorder pattern by the values of individual amplitudes included in the respiratory signal, and again counts the number of respiratory disorders. A more accurate apnea hypopnea index is obtained for serious patients, and accuracy as PSG screening examination can be increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.