Automatic determination and selection of filtering in a cardiac rhythm management device
US10888238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2018 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Feb 26, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7282
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and/or device facilitating and selecting among multiple modes of filtering a cardiac electrical signal, in which one filtering mode includes additional high pass filtering of low frequency signals, relative to the other filtering mode. The selection filtering modes may include comparing sensed signal amplitude to one or more thresholds, using the multiple modes of filtering. In another example, an additional high pass filter is enabled, over and above a default or baseline filtering mode, and the detected cardiac signal is monitored for indications of possible undersensing, and/or for drops in amplitude toward a threshold, and the additional high pass filter may be disabled upon finding of possible undersensing or drop in signal amplitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.