| CPC A61B 17/22022 (2013.01) [A61B 2017/22001 (2013.01); A61B 17/2202 (2013.01); A61B 2017/22021 (2013.01); A61B 2017/22025 (2013.01); A61B 2017/22028 (2013.01); A61B 2017/22051 (2013.01); A61B 2017/22062 (2013.01)] | 13 Claims |
|
1. A device for treating calcified lesions in a body lumen comprising:
an elongated member;
an enclosure located near a distal end of the elongated member, said enclosure being fillable with a conductive fluid;
a cylindrical conductive sheath positioned around the elongated member and within the enclosure;
a first insulated wire including a first conductive electrode region, said first wire being supported by the elongated member, with the first electrode region of the first wire being adjacent to but spaced from the cylindrical sheath to define a first gap; and
a second insulated wire including a second conductive electrode region, said second wire being supported by the elongated member, with the second electrode region of the second wire being adjacent to but spaced from the cylindrical sheath to define a second gap and arranged such that when a voltage pulse is applied to the first and second wires, current will flow from the first electrode region across the first gap to the sheath and then from the sheath across the second gap to the second electrode region, with first and second shock waves being generated at the first and second gaps,
wherein the first insulated wire extends along a groove of the elongated member that is circumferentially offset from the first gap by an angle.
|