Left-ventricular pacing site selection guided by electrogram morphology analysis
First Claim
1. A medical device for determining a pacing electrode site and delivering pacing pulses to a patient'"'"'s heart, the device comprising:
- a plurality of electrodes for delivering pacing pulses to a patient'"'"'s heart at a plurality of candidate cathode pacing electrode sites along a first heart chamber;
a control unit operatively coupled with the plurality of electrodes for controlling the delivery of the pacing pulses, including selecting electrodes for delivering the pacing pulses to the plurality of candidate cathode pacing electrode sites selected one at a time;
a sensing module for sensing a cardiac signal;
a memory storing a first morphology template; and
a processor configured to;
receive the cardiac signal during pacing in the first heart chamber at each of the plurality of candidate cathode pacing electrode sites,for each of the plurality of candidate cathode pacing electrode sites determine a cardiac signal morphology in response to the cardiac signal and compare the determined cardiac signal morphology to a first morphology template, andclassify each of the plurality of candidate cathode pacing electrode sites that result in greater than a threshold correlation between the cardiac signal morphology and the first template as a non-recommended pacing site for delivering a pacing therapy in the first heart chamber.
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Accused Products
Abstract
A medical device and associated method classify candidate pacing electrode sites for delivering pacing pulses to a patient'"'"'s heart. A first morphology template is established and stored in memory of the device. A processor is configured to determine a cardiac signal morphology in response to delivering pacing pulses at a candidate pacing site in a first heart chamber. The processor compares the determined cardiac signal morphology to the first morphology template. The pacing site in the first heart chamber is classified in response to the comparing of the determined cardiac signal morphology and the first morphology template.
14 Citations
10 Claims
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1. A medical device for determining a pacing electrode site and delivering pacing pulses to a patient'"'"'s heart, the device comprising:
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a plurality of electrodes for delivering pacing pulses to a patient'"'"'s heart at a plurality of candidate cathode pacing electrode sites along a first heart chamber; a control unit operatively coupled with the plurality of electrodes for controlling the delivery of the pacing pulses, including selecting electrodes for delivering the pacing pulses to the plurality of candidate cathode pacing electrode sites selected one at a time; a sensing module for sensing a cardiac signal; a memory storing a first morphology template; and a processor configured to; receive the cardiac signal during pacing in the first heart chamber at each of the plurality of candidate cathode pacing electrode sites, for each of the plurality of candidate cathode pacing electrode sites determine a cardiac signal morphology in response to the cardiac signal and compare the determined cardiac signal morphology to a first morphology template, and classify each of the plurality of candidate cathode pacing electrode sites that result in greater than a threshold correlation between the cardiac signal morphology and the first template as a non-recommended pacing site for delivering a pacing therapy in the first heart chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification