Motion-based optimization for placement of cardiac stimulation electrodes
First Claim
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1. A method comprising:
- positioning a pair of current-delivery electrodes in contact with a patient'"'"'s body;
advancing a multielectrode-bearing delivery device into a coronary sinus and at least partially into a vein of a left ventricle of a patient'"'"'s heart;
positioning an electrode of the multielectrode-bearing device at an optimal location by;
delivering current using the pair of current-delivery electrodes to generate a potential field;
measuring potentials associated with the potential field using an electrode of the multielectrode-bearing delivery device;
mapping motion of the electrode of the multielectrode-bearing delivery device based on the measured potential; and
identifying an optimal electrode of the multielectrode-bearing device based on the mapped motion, wherein the location of the optimal electrode corresponds to the optimal location;
positioning an electrode at the determined optimal location by;
advancing an electrode-bearing lead along the multielectrode-bearing delivery device; and
aligning an electrode of the electrode-bearing lead with the optimal electrode of the multielectrode-bearing delivery device;
after aligning the electrode of the electrode-bearing lead, retracting the multielectrode-bearing delivery device while maintaining the position of the electrode-bearing lead.
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Abstract
An exemplary method includes use of a multielectrode device that can help position a cardiac stimulation lead to an optimal site in the heart based at least in part on cardiac motion information acquired via the multielectrode device and one or more pairs of current delivery electrodes that establish potential fields (e.g., for use as a coordinate system). An exemplary multielectrode device may be a multielectrode catheter or a multifilar, electrode-bearing guidewire. Various other exemplary methods, devices, systems, etc., are also disclosed.
55 Citations
19 Claims
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1. A method comprising:
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positioning a pair of current-delivery electrodes in contact with a patient'"'"'s body; advancing a multielectrode-bearing delivery device into a coronary sinus and at least partially into a vein of a left ventricle of a patient'"'"'s heart; positioning an electrode of the multielectrode-bearing device at an optimal location by;
delivering current using the pair of current-delivery electrodes to generate a potential field;
measuring potentials associated with the potential field using an electrode of the multielectrode-bearing delivery device;
mapping motion of the electrode of the multielectrode-bearing delivery device based on the measured potential; and
identifying an optimal electrode of the multielectrode-bearing device based on the mapped motion, wherein the location of the optimal electrode corresponds to the optimal location;positioning an electrode at the determined optimal location by;
advancing an electrode-bearing lead along the multielectrode-bearing delivery device; and
aligning an electrode of the electrode-bearing lead with the optimal electrode of the multielectrode-bearing delivery device;after aligning the electrode of the electrode-bearing lead, retracting the multielectrode-bearing delivery device while maintaining the position of the electrode-bearing lead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification