Detection of heart failure using a photoplethysmograph
US7803118B2 · kind B2 · utility
63Cited by
95References
74Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2007 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | May 17, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H50/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for diagnosis includes receiving a signal associated with blood oxygen saturation of a patient during sleep. The signal is filtered so as to eliminate signal components at frequencies equal to and greater than a respiratory frequency of the patient. The filtered signal is processed to detect a pattern corresponding to multiple cycles of periodic breathing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.