Guided atrial anti-tachycardia pacing for implanted cardiac stimulation
First Claim
1. An implantable cardiac stimulation device comprising:
- at least one lead adapted to be implanted proximate to the atrial walls of the heart;
a plurality of electrodes coupled to the at least one lead so as to be spatially distributed with respect to the atrial walls of the heart, wherein the plurality of electrodes both sense electrical activity of the heart and also are adapted to provide therapeutic stimulation to the heart;
a controller that receives signals indicative of the electrical activity of the heart from the plurality of electrodes and selects at least one electrode for the delivery of therapeutic stimulation to the heart, wherein the controller detects the existence of a supra-ventricular tachycardia event based upon the signals received from the plurality of electrodes and in response to detecting the existence of a supra-ventricular tachycardia, sequentially senses the supra-ventricular tachycardia from at least some of the plurality of electrodes that are spaced from each other and determines an appropriate electrical stimulation therapy, and selects at least one of the plurality of electrodes to deliver at least one electrical stimulation to the heart based upon the determined appropriate electrical stimulation therapy wherein the controller uses the signals from the plurality of electrodes that are spaced from each other to map location information about the origin of the supra-ventricular tachycardia.
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Accused Products
Abstract
An implantable stimulation device that maps the location of irritable foci causing an atrial arrhythmia is provided by certain embodiments disclosed herein. The device may, for example, collect intra-cardiac data from a plurality of electrodes spatially distributed throughout a chamber of the heart. This data may be compared with data related to the location of each electrode and the electrical properties of the heart to approximate a point of origin for the atrial arrhythmia. Further embodiments may provide methods and systems for using this information to provide more efficient treatment of the atrial arrhythmia. For example, an optimized ATP pulse train may be determined based on the location of one or more irritable foci. Such an ATP pulse train may be applied to more efficiently terminate the atrial arrhythmia.
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Citations
34 Claims
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1. An implantable cardiac stimulation device comprising:
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at least one lead adapted to be implanted proximate to the atrial walls of the heart; a plurality of electrodes coupled to the at least one lead so as to be spatially distributed with respect to the atrial walls of the heart, wherein the plurality of electrodes both sense electrical activity of the heart and also are adapted to provide therapeutic stimulation to the heart; a controller that receives signals indicative of the electrical activity of the heart from the plurality of electrodes and selects at least one electrode for the delivery of therapeutic stimulation to the heart, wherein the controller detects the existence of a supra-ventricular tachycardia event based upon the signals received from the plurality of electrodes and in response to detecting the existence of a supra-ventricular tachycardia, sequentially senses the supra-ventricular tachycardia from at least some of the plurality of electrodes that are spaced from each other and determines an appropriate electrical stimulation therapy, and selects at least one of the plurality of electrodes to deliver at least one electrical stimulation to the heart based upon the determined appropriate electrical stimulation therapy wherein the controller uses the signals from the plurality of electrodes that are spaced from each other to map location information about the origin of the supra-ventricular tachycardia. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An implantable device capable of measuring cardiac activity and providing stimulation to a patient'"'"'s heart, comprising:
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a processor; a memory; a housing in which the processor and the memory are mounted wherein the housing is configured to be implanted into a patient'"'"'s body; a plurality of electrodes located external to the housing, wherein each electrode is adapted to transmit a signal indicative of an intrinsic electrical signal originating in the heart to the processor and each electrode is adapted to provide an electrical stimulation to the heart; and wherein the processor sequentially samples at least some of the plurality of electrodes in response to detecting the signal indicative of the intrinsic electrical signal and is capable of mapping location information about a source of the intrinsic electrical signal within the heart based upon a plurality of signals received by the processor from the sampled plurality of electrodes corresponding to the intrinsic electrical signal and storing a first set of data representing the location information about the source of the intrinsic electrical signal in the memory, wherein the processor is adapted to determine an appropriate electrical stimulation therapy based at least in part upon the location information about the source of the intrinsic electrical signal, and the processor is further adapted to induce at least one of the plurality of electrodes to deliver at least one electrical stimulation to the heart based upon the determined appropriate electrical stimulation therapy. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for approximating an origin of an electrical signal generated in a heart utilizing an implanted device including a plurality of electrodes spatially distributed in a chamber of the atria, comprising:
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determining whether the intrinsic electrical signal indicative of an atrial tachycardia has been detected by the plurality of spatially distributed electrodes; in response to determining that an electrical signal indicative of an atrial tachycardia has occurred, sequentially sampling at least some of the spatially distributed plurality of electrodes to obtain information about the intrinsic electrical signal indicative of an atrial tachycardia by selectively activating electrodes for discrete time periods following the detection of an event; storing timing information about when the intrinsic electrical signal was detected by the at least some of the plurality of spatially distributed electrodes when it is determined that the intrinsic electrical signal has been detected; using the timing information about when the intrinsic electrical signal indicative of an atrial tachycardia was detected by each of the at least some of the plurality of electrodes in conjunction with location information of each of the plurality of electrodes to map the origin of the intrinsic electrical signal indicative of the atrial tachycardia. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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Specification