US 12,402,901 B2
Intravascular lithotripsy catheter
Alexander Joseph Asconeguy, Eagle, ID (US); Ricardo David Roman, Chula Vista, CA (US); Michael Christopher Oliveira, Escondido, CA (US); Josef V. Koblish, Sunnyvale, CA (US); and Jeremy Durack, New York, NY (US)
Assigned to IV-X Medical, LLC, Menlo Park, CA (US)
Filed by IV-X Medical, LLC, Menlo Park, CA (US)
Filed on Feb. 6, 2025, as Appl. No. 19/047,456.
Claims priority of provisional application 63/718,155, filed on Nov. 8, 2024.
Claims priority of provisional application 63/647,485, filed on May 14, 2024.
Claims priority of provisional application 63/551,482, filed on Feb. 8, 2024.
Prior Publication US 2025/0255628 A1, Aug. 14, 2025
Int. Cl. A61B 17/22 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/2202 (2013.01) [A61B 2017/00893 (2013.01); A61B 2017/22021 (2013.01); A61B 2017/22025 (2013.01); A61B 2017/22062 (2013.01); A61B 2017/22082 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An intravascular lithotripsy catheter for modifying calcified plaque within a blood vessel of a subject, the intravascular lithotripsy catheter comprising:
a sheath comprising a lumen configured to receive a guidewire, wherein a longitudinal axis of the intravascular lithotripsy catheter extends through the lumen;
a first insulated wire wound around and contacting an outer surface of the sheath, the first insulated wire comprising an electrically conductive member, an insulative member encasing the electrically conductive member, and an insulative member opening forming an exposed portion of the electrically conductive member;
a second insulated wire wound around and contacting the outer surface of the sheath, the second insulated wire comprising an electrically conductive member, an insulative member encasing the electrically conductive member of the second insulated wire, and an insulative member opening forming an exposed portion of the electrically conductive member of the second insulated wire;
wherein the exposed portion of the second insulated wire is circumferentially offset from the exposed portion of the first insulated wire by an angle originating at the longitudinal axis;
wherein the exposed portion of the second insulated wire is longitudinally offset from the exposed portion of the first insulated wire by a longitudinal distance extending along the intravascular lithotripsy catheter parallel to the longitudinal axis, wherein the second insulated wire is arranged in contact with the first insulated wire along the longitudinal distance between the exposed portion of the second insulated wire and the exposed portion of the first insulated wire; and
a carrier encasing the first and second insulated wires and the sheath, the carrier comprising:
a first carrier opening aligned with the exposed portion of the electrically conductive member of the first insulated wire; and
a second carrier opening spaced from the first carrier opening and aligned with the exposed portion of the electrically conductive member of the second insulated wire;
wherein the intravascular lithotripsy catheter is configured to be electrically connected to an energy generator that is operable to cause a spark to form longitudinally along the intravascular lithotripsy catheter and circumferentially around the intravascular lithotripsy catheter from the exposed portion of the first insulated wire to the exposed portion of the second insulated wire.