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US 2009/0276000 A1Published application
Pacing method
AssigneeMedtronic, Inc.
InventorsPaul A. Iaizzo, Timothy G. Laske
Life of this patent
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Abstract
A method for delivering physiological pacing includes selecting an electrode implant site for sensing cardiac signals, which is in proximity to the heart's intrinsic conduction system, where pacing stimulation results in a rhythm breaking out at an intrinsic location, and selected in response to a ratio of sensed P-wave amplitude to sensed R-wave amplitude.
Claims20
A method, comprising:
- inserting at least one electrode into cardiac tissue in proximity to a portion of an intrinsic conduction system of a patient's heart;
- measuring, using the at least one electrode, a P-wave amplitude and an R-wave amplitude;
- determining a ratio of the P-wave amplitude to the R-wave amplitude;
- selecting an electrode implant site for sensing cardiac signals in response to the ratio of the P-wave amplitude to the R-wave amplitude;
- positioning an electrode at the selected electrode implant site for sensing;
- and
- sensing a cardiac signal using the electrode positioned at the selected electrode implant site.
4 more elements
A method, comprising:
- inserting an electrode pair into cardiac tissue in proximity to a portion of an intrinsic conduction system of a patient's heart;
- positioning the electrode pair at various points in proximity to the portion of the intrinsic conduction system;
- measuring, using the electrode pair, a P-wave amplitude and an R-wave amplitude at each of the various points;
- determining a ratio of the P-wave amplitude to the R-wave amplitude;
- selecting an electrode implant site for sensing cardiac signals in response to the ratio of the P-wave amplitude to the R-wave amplitude;
- positioning the electrode pair at the selected electrode implant site for sensing;
- and
- sensing a cardiac signal using the electrode pair positioned at the selected electrode implant site.
5 more elements
Dependencies are inferred from the claim text.