Physiological event detection
US6985768B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2003 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Dec 5, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/353
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In general, the invention is directed to techniques for electrically detecting physiological events. The physiological events may include cardiac events such as R waves or p waves. In addition, the physiological events may include respiratory events. In general, the techniques involve converting an analog physiological signal to a digital delta value, correlating the digital delta value with a correlation template, and detecting a physiological event based on an output of the correlation. A digital correlation-based technique, as described herein, is implemented to reliably detecting physiological events, particularly for very small signals captured in the presence of significant background noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.