System for identifying rotor propagation vectors
US-9186080-B2 · Nov 17, 2015 · US
Method and determination of cardiac activation from electrograms with multiple deflections
US9526435B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9526435-B2 |
| Application number | US-201514597472-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 15, 2015 |
| Priority date | Feb 21, 2013 |
| Publication date | Dec 27, 2016 |
| Grant date | Dec 27, 2016 |
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Abstract
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A method and system for determining activation times for electric potentials from complex electrograms to identify the location of arrhythmic sources or drivers. The method includes counting a number deflections in a recorded cardiac electrogram signal from at least one electrode for a predetermined amount of time. A deflection time is identified for each of the counted number of deflections. A most negative slope is identified between each of the identified deflections times. Each of the identified most negative slopes is correlated to a possible activation time. Each possible activation time is associated with a corresponding electrode from the at least one electrode. A spatial voltage gradient at each corresponding electrode is calculated for each possible activation time. The greatest spatial voltage gradient is identified. The greatest spatial voltage gradient is correlated to an activation time.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of determining cardiac activation times in a patient with an arrhythmia, comprising: counting a number deflections in a recorded cardiac electrogram signal from at least one electrode for a predetermined amount of time; identifying a deflection time for each of the counted number of deflections; identifying a most negative slope between each of the identified deflections times; correlating each of the identified most negative slopes to a possi…
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Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
- A61B5/046Primary
Human Necessities · mapped topic
Human Necessities · mapped topic
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- What does patent US9526435B2 cover?
- A method and system for determining activation times for electric potentials from complex electrograms to identify the location of arrhythmic sources or drivers. The method includes counting a number deflections in a recorded cardiac electrogram signal from at least one electrode for a predetermined amount of time. A deflection time is identified for each of the counted number of deflections. A…
- Who is the assignee on this patent?
- Medtronic Inc
- What technology area does this patent fall under?
- Primary CPC classification A61B5/046. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Dec 27 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).