Automatic orientation determination for ECG measurements using multiple electrodes
US7706866B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2004 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Dec 10, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3756
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Cardiac monitoring and/or stimulation methods and systems provide monitoring, defibrillation and/or pacing therapies. A signal processor receives a plurality of composite signals associated with a plurality of sources, separates a signal using a source separation algorithm, and identifies a cardiac signal using a selected vector. The signal processor may iteratively separate signals from the plurality of composite signals until the cardiac signal is identified. The selected vector may be updated if desired or necessary. A method of signal separation involves detecting a plurality of composite signals at a plurality of locations, separating a signal using source separation, and selecting a vector that provides a cardiac signal. The separation may include a principal component analysis and/or an independent component analysis. Vectors may be selected and updated based on changes of position and/or orientation of implanted components and changes in patient parameters such as patient condition, cardiac signal-to-noise ratio, and disease progression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.