Methods and apparatus for R-wave detection
US6161037A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1999 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Oct 26, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/021
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus and methods for determining the precise times of occurrence of R-waves in an ECG signal of a patient. Samples of the patient's ECG signal are accumulated and an ECG window comprising a predetermined number of the samples is defined. In accordance with one embodiment of the invention, the patient's blood pressure signal is processed to detect systoles and the ECG window has a predetermined time relationship to detected systoles. In accordance with an alternative embodiment, the ECG signal is first processed to approximate the times of occurrence of R-waves and the ECG window is defined to have a predetermined time relationship to the approximated R-wave times. ECG signal samples within the ECG window are processed to determine a maximum and the time of occurrence of the maximum is stored as the time of an R-wave event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.