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US 12,465,260 B2Granted
Systems and methods for cardiac conduction block
AssigneePresidio Medical, Inc.
InventorsKenneth S. Wu, Douglas Michael Ackermann
Life of this patent
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Abstract
This disclosure relates to electrophysiology cardiac ablation devices, methods, and systems. In particular, this disclosure relates to devices, methods, and systems that create a reversible non-ablative blockade of cardiac tissue, test the cardiac tissue, and ablate the cardiac tissue.
Claims23
A method of performing a cardiac electrophysiologic study in a patient, comprising:
- sensing, at a first cardiac target tissue at a heart, electrical activity of the first cardiac target tissue;
- determining that the electrical activity of the first cardiac target tissue has characteristics of interest;
- delivering a first non-ablative direct current to the first cardiac target tissue sufficient to create a reversible conduction block in the first cardiac target tissue, wherein the first non-ablative direct current comprises a frequency of less than about 1 Hz;
- determining an absence of the characteristics of interest based on the electrical activity of the first cardiac target tissue following delivering the first non-ablative direct current;
- and
- ablating the first cardiac target tissue.
3 more elements
A method of performing a cardiac electrophysiologic study in a patient, comprising:
- sensing, at a first cardiac target tissue at a heart, electrical activity of the first cardiac target tissue;
- delivering a non-ablative electrical current to the first cardiac target tissue sufficient to create a reversible conduction block in the first cardiac target tissue, wherein the first non-ablative electrical current comprises a frequency of less than about 1 Hz;
- determining an absence of aberrant electrical activity of the patient's heart following delivering the non-ablative electrical current;
- and
- ablating the first cardiac target tissue.
2 more elements
A method of performing a cardiac electrophysiologic study in a patient, comprising:
- sensing, at a heart, electrical activity of a first cardiac target tissue;
- determining that the electrical activity of the first cardiac target tissue has a characteristic of interest;
- delivering a non-ablative current to the first cardiac target tissue sufficient to create a reversible conduction block in the first cardiac target tissue, wherein the non-ablative current comprises a frequency of less than about 1 Hz;
- determining an absence of the characteristic of interest following delivering the non-ablative current;
- and
- ablating the first cardiac target tissue.
3 more elements
Dependencies are inferred from the claim text.