Far-field R-wave detection to control atrial pace timing in a dual-chamber leadless pacemaker
US9889303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2014 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Jun 10, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/37205
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for sensing far-field R-waves in a leadless, intracardiac pacemaker implanted in an atrium of a patient's heart may involve sensing an electrical signal generated by the heart with two electrodes and a first sensing channel and/or a second sensing channel of the pacemaker, comparing a first timing marker from the first sensing channel with a second timing marker from the second sensing channel, and either determining that the sensed signal is a P-wave, if the first and second timing markers indicate that the sensed signal was sensed by the first and second sensing channels within a predetermined threshold of time from one another, or determining that the sensed signal is a far-field R-wave, if the sensed signal is sensed by the second sensing channel and not sensed by the first sensing channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.