System for identifying rotor propagation vectors
US-9186080-B2 · Nov 17, 2015 · US
Method and determination of cardiac activation from electrograms with multiple deflections
US8965489B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8965489-B2 |
| Application number | US-201313773030-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 21, 2013 |
| Priority date | Feb 21, 2013 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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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 medical system, comprising: a medical device including a plurality of electrodes; a control unit in communication with the plurality of electrodes, the control unit operable to: transmit radiofrequency energy between the plurality of electrodes when the plurality of electrodes is positioned proximate a target tissue region; record an electrogram signal from the plurality of electrodes proximate the target tissue region; count a number of deflections…
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Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
- A61B5/046Primary
Human Necessities · mapped topic
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- What does patent US8965489B2 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 Feb 24 2015 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).