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US 2012/0239106 A1Published application
His capture verification using electro-mechanical delay
AssigneeCardiac Pacemakers, Inc.
InventorsBarun Maskara, Jiang Ding, Shantha Arcot-Krishnamurthy, Allan C. Shuros
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Abstract
Stimulation energy can be provided to a His-bundle to activate natural cardiac contraction mechanisms. Interval information can be used to describe a cardiac response to His-bundle stimulation, and the interval information can provide cardiac stimulation diagnostic information. For example, interval information can be used to discriminate between intrinsic conduction cardiac contractions and contractions responsive to His-bundle pacing.
Claims20
An ambulatory medical device, comprising:
- a cardiac stimulation circuit configured to generate a stimulation energy to provide His-bundle stimulation;
- a processor circuit, including:
- a data input, configured to receive first cardiac activity information, from other than an intrinsic electrical heart signal, using a first sensor;
- and
- a processor-readable medium, including instructions that, when performed by the processor, configure the medical device to:
- determine a first interval using the first cardiac activity information;
- and
- provide a cardiac stimulation diagnostic indication using the first interval.
5 more elements
An ambulatory medical device, comprising:
- a cardiac stimulation circuit configured to generate a stimulation energy to provide His-bundle stimulation;
- a processor circuit, including:
- a first data input, configured to receive first cardiac activity information, from an intrinsic electrical heart signal, using a first sensor;
- and
- a second data input, configured to receive second cardiac activity information, from other than an intrinsic electrical heart signal, using the first sensor;
- and
- a processor-readable medium, including instructions that, when performed by the processor, configure the medical device to:
- determine a first interval using the first cardiac activity information;
- determine a second interval using the second cardiac activity information;
- form a cardiac stimulation diagnostic metric using at least the first interval;
- and
- provide a cardiac stimulation diagnostic indication using the cardiac stimulation diagnostic metric and the second interval.
9 more elements
A method comprising:
- generating, using an ambulatory medical device, a stimulation energy to provide His-bundle stimulation;
- stimulating a His-bundle at a first time using the stimulation energy;
- receiving first cardiac activity information, from other than an intrinsic electrical heart signal, from a first sensor at a second time, the first cardiac activity information indicative of a cardiac response to the stimulating;
- computing a first time interval using the first time and the second time;
- and
- providing a cardiac stimulation diagnostic indication using the computed first time interval.
3 more elements
Dependencies are inferred from the claim text.