Detection of ventricular activity using unipolar and bipolar signals
US11311226B2 · kind B2 · utility
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Key dates
| Filing date | Dec 12, 2019 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | May 11, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/743
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method includes receiving a bipolar signal sensed by a pair of electrodes at a location in a heart of a patient. A unipolar signal is received, which is sensed by an electrode at the location in the heart. A derivative of the received bipolar signal is computed. A derivative of the received unipolar signal is computed. A ratio is evaluated, between the derivative of the bipolar signal and the derivative of the unipolar signal at local minima of the derivative of the unipolar signal. When the ratio is smaller than a preset threshold ratio value, an occurrence of ventricular activity is indicated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.