Patent ID: 11944372
Assignee: BOSTON SCIENTIFIC SCIMED, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 9:
10. A system for ablation comprising:
a catheter comprising:
a sheath defining a sheath lumen and a distal end, an elongate electrode assembly within the sheath lumen, the electrode assembly having a distal portion and a proximal portion, the electrode assembly being axially moveable within the sheath lumen, the electrode assembly comprising:
a shaft defining a central channel and a distal central channel opening, a first lead within the shaft, and
an expandable electrode array comprising three or more electrode elements positioned positioned at the distal portion of the electrode assembly and electrically connected to the first lead, wherein the electrode array is moveable between a retracted position contained within the sheath lumen and an expanded position protruding from the distal end of the sheath, wherein the electrode elements surround the distal central channel opening of the shaft when the electrode elements are in the expanded position, wherein the three or more electrode elements include free distal ends and proximal ends attached to an inner surface of the shaft;

an ultrasound imaging catheter configured to be slidably moved within the central channel, wherein the ultrasound imaging catheter is capable of being moved axially to a first deployed position extending from the distal central channel opening;

an ancillary delivery device configured to be introduced into and slidably moved within the central channel while the ultrasound imaging catheter is positioned within the central channel; and
a generator configured to be electrically connected to the electrode assembly and configured for delivery of one of the group consisting of a radiofrequency energy, a pulsed electric field, an irreversible electroporation energy, and a reversible electroporation energy.