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US 11,633,230 B2Granted
Intracardiac tools and methods for delivery of electroporation therapies
AssigneeMedtronic Ablation Frontiers LLC
InventorsMark T. Stewart, Jordon D. Honeck
Life of this patent
Estimating the term…
Abstract
A medical system, including a medical device having a plurality of deployable arms, and at least one electrode on at least one of the plurality of arms; and an electric signal generator in communication with the medical device, the electric signal generator programmed to deliver pulsed energy to the medical device sufficient to induce irreversible electroporation ablation.
Claims26
A method for treating tissue, comprising:
- providing a medical device coupled to a power source, the medical device having an expandable structure having at least three arms, each arm having a proximal portion, a distal portion, and a plurality of conductive elements, the plurality of conductive elements being distal facing on the distal portion of each arm;
- inserting the medical device into the tissue;
- positioning the distally facing conductive elements proximate the tissue;
- activating the plurality of conductive elements to deliver at least one train of biphasic electroporation pulses to the tissue, and delivery of the electroporation at an output voltage that is between 800 and 2000 volts;
- and
- removing the medical device from the tissue,
- wherein each pulse of the at least one train of biphasic electroporation pulses has a pulse width of between 0.005 μs and 5 μs.
4 more elements
A method of ablating cardiac tissue, comprising:
- providing a medical device coupled to a power source, the medical device having an expandable structure with at least three arms, each arm having a proximal portion, a distal portion, and a plurality of conductive elements, the plurality of conductive elements being distal facing on the distal portion of each arm;
- positioning the plurality of conductive elements adjacent an endocardial surface of a heart;
- and
- conducting pulsed energy to the plurality of conductive elements to induce irreversible electroporation ablation of tissue therebetween, the pulsed energy including a plurality of biphasic electroporation pulses each having a pulse width of between 0.005 μs and 5 μs.
1 more element
A method of ablating cardiac tissue, comprising:
- providing a medical device coupled to a power source, the medical device having an expandable structure with five arms, each arm having a proximal portion, a distal portion, and a plurality of conductive elements, the plurality of conductive elements being distal facing on the distal portion of each arm;
- positioning the plurality of conductive elements adjacent an endocardial surface of a heart;
- and
- conducting pulsed energy to the plurality of conductive elements to induce irreversible electroporation ablation of tissue therebetween, the pulsed energy including at least one train of biphasic electroporation pulses, and delivery of the energy at an output voltage that is between 800 and 2000 volts,
- wherein each pulse of the at least one train of biphasic electroporation pulses has a pulse width of between 0.005 μs and 5 μs.
2 more elements
Dependencies are inferred from the claim text.