Heartbeat occurrence detector
US4250889A · kind A · utility
Inventor
Key dates
| Filing date | Mar 2, 1979 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Mar 2, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/901
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus for monitoring the heartbeat of a person by screening the occurrence of a heartbeat from artifact to produce a signal indicative of the heartbeat occurrence. Screening circuitry detects the R-wave and S-wave peaks of an ECG signal, delays the R-wave peak detection and compares the delayed R-wave peak detection to the S-wave peak detection for coincidence to determine a heartbeat occurrence. Binary counting circuits compare the elapsed time between any two immediately successive heartbeat occurrence indications to determine heartbeat rate. Display apparatus, operably coupled to the counting circuits, provides indicia of the relative heartbeat rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.