Systems, apparatuses, and methods for ventricular focal ablation
AssigneeBoston Scientific Scimed, Inc.
InventorsRaju Viswanathan, Gary L. Long
Life of this patent
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Abstract
Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy, and an endocardial ablation device includes an inflatable member and at least one electrode for focal ablation pulse delivery to tissue. The signal generator may deliver voltage pulses to the ablation device in the form of a pulse waveform. The system may include a cardiac stimulator for generation of pacing signals and for sequenced delivery of pulse waveforms in synchrony with the pacing signal.
Claims20
An apparatus, comprising:
- a catheter shaft defining a longitudinal axis and having a distal end;
- an inflatable member coupled to the distal end of the catheter shaft, the inflatable member having a proximal end and an opposite distal end;
- a plurality of shaft electrodes on a surface of the catheter shaft proximate the distal end thereof, the plurality of shaft electrodes including a first set of shaft electrodes;
- and
- a conductive element comprising a set of spaced apart conductive stripes extending in a proximal-to-distal direction between the proximal and distal ends of the inflatable member and electrically isolated from the first set of shaft electrodes.
A method of focal ablation via irreversible electroporation, comprising:
- advancing an ablation device towards an endocardial wall, the ablation device including:
- a catheter shaft defining a longitudinal axis;
- an inflatable member coupled to a distal end of the catheter shaft and having a proximal end and a distal end;
- a first set of shaft electrodes formed on a surface of the catheter shaft;
- and
- a conductive element comprising a set of spaced apart conductive stripes extending in a proximal-to-distal direction between the proximal and distal ends of the inflatable member and electrically isolated from the first set of shaft electrodes;
- generating a pulse waveform;
- and
- delivering the pulse waveform to the endocardial wall via the first set of shaft electrodes and the conductive element.
Dependencies are inferred from the claim text.