Patent ID: 11911056
Assignee: FASTWAVE MEDICAL INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 17:
18. An apparatus, comprising:
an elongated body including an inner elongated structure defining a guidewire lumen, and an outer elongated structure defining an inflation lumen located between the inner elongated structure and the outer elongated structure;
a balloon positioned at a distal portion of the elongated body, the balloon configured to receive a fluid via the inflation lumen to inflate such that an exterior surface of the balloon contacts an interior surface of a target treatment site within a vasculature of a patient;
a first electronic emitter positioned along a central longitudinal axis of the elongated body within the balloon;
the first electronic emitter adhered to the inner elongated structure; and
the first electronic emitter comprising a first electrode and a second electrode,
wherein the first electrode is longitudinally spaced from the second electrode such that the longitudinal spacing forms a first spark gap between the first electrode and the second electrode, and wherein the first electrode and the second electrode are fixed in orientation with respect to one another, and

a second electronic emitter positioned along a central longitudinal axis of the elongated body within the balloon, the second electronic emitter longitudinally spaced from the first electronic emitter,
the second electronic emitter adhered to the inner elongated structure; and
the second electronic emitter comprising a third electrode and a fourth electrode,
wherein the third electrode is longitudinally spaced from the fourth electrode such that the longitudinal spacing forms a second spark gap between the third electrode and the fourth electrode, and wherein the third electrode and the fourth electrode are fixed in orientation with respect to one another,
wherein the first electrode, the second electrode, the third electrode, and the fourth electrode surround the inner elongated structure,
wherein the first electronic emitter and the second electronic emitter are configured to propagate pressure waves radially outward through the fluid to fragment a calcified lesion at the target treatment site,
wherein the first electrode defines a first perimeter facing the first spark gap, the second electrode defines a second perimeter facing the first spark gap, the first perimeter facing and parallel to the second perimeter along an entirety of the first perimeter and the second perimeter,
wherein the third electrode defines a third perimeter facing the second spark gap, the fourth electrode defines a fourth perimeter facing the second spark gap, the third perimeter facing and parallel to the fourth perimeter along an entirety of the third perimeter and the fourth perimeter,
wherein the first electrode and the second electrode are fixed in orientation with respect to one another such that the first electrode is configured to spark at a random location about the first perimeter and thereby arc to the second perimeter, the first electrode and the second electrode configured to remain fixed in orientation with respect to one another while the elongated body navigates a tortuous vasculature toward a target treatment site, and
wherein the third electrode and the fourth electrode are fixed in orientation with respect to one another such that the third electrode is configured to spark at a random location about the third perimeter and thereby arc to the fourth perimeter, the third electrode and the fourth electrode configured to remain fixed in orientation with respect to one another while the elongated body navigates a tortuous vasculature toward a target treatment site.