Method for reducing arterial restenosis in the presence of an intravascular stent
First Claim
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1. A method, comprising:
- sensing cardiac signals, where the cardiac signals include a cardiac cycle;
positioning a first electrode within an artery proximate an implanted intravascular stent;
positioning a second electrode at a remote position outside the lumen of the stent; and
delivering at least one pulse of electrical energy between the first electrode and the second electrode during a predetermined portion of the cardiac cycle, at a repetition rate that is less than or equal to the order of a frequency between heart depolarizations.
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Abstract
A first electrode is positioned within an artery proximate an implanted intravascular stent. A second electrode is positioned at a separate location relative the position of the first electrode. Electrical energy is then delivered between the first and the second electrodes to produce an electrical field adjacent the implanted intravascular stent. When a intravascular stent is implanted in a coronary artery, the delivery of the electrical energy is coordinated to cardiac cycles detected in sensed cardiac signals, where the delivery of the electrical energy between the first electrode and the second electrode occurs during a predetermined portion of the cardiac cycle.
208 Citations
17 Claims
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1. A method, comprising:
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sensing cardiac signals, where the cardiac signals include a cardiac cycle;
positioning a first electrode within an artery proximate an implanted intravascular stent;
positioning a second electrode at a remote position outside the lumen of the stent; and
delivering at least one pulse of electrical energy between the first electrode and the second electrode during a predetermined portion of the cardiac cycle, at a repetition rate that is less than or equal to the order of a frequency between heart depolarizations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method, comprising:
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positioning at least a portion of a first electrode within a lumen of an intravascularly implanted stent;
positioning a second electrode at a remote position outside the lumen of the stent; and
delivering at least one pulse of electrical energy between the first electrode and the second electrode, at a repetition rate that is less than or equal to the order of a frequency between heart depolarizations. - View Dependent Claims (12)
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13. A method comprising:
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positioning at least a portion of a first electrode within a lumen of an intravascularly implanted stent;
positioning a second electrode at a remote position relative to the first electrode; and
delivering at least one sub-radio-frequency (sub-RF) pulse of electrical energy between the first electrode and the second electrode, at a repetition rate that is less than or equal to the order of a frequency between heart depolarizations. - View Dependent Claims (14, 15, 16, 17)
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Specification