US 2026/0232367 A1 · Methods and Devices for Endovascular Treatment

Abstract

Methods and devices for treating primary stenosis, restenosis, and in-stent restenosis in a vessel include a catheter with two or more balloons that applies a dilation force in combination with a thermal ablative energy and, preferably, acoustic pressure, to a diseased vessel segment, resulting in mechanical dilation and thermal ablation of majority of the diseased intima, media, neointima. The balloon is made of a material that can sustain both high dilation pressure and ablation temperatures without affecting its integrity or functionality. A controller controls the delivery of fluid and thermal energy to the balloon. An inner balloon is inflated with a heated liquid solution to deliver the thermal energy, and an outer balloon is inflated and used to apply acoustic pressure to target tissue.

Claims20

Dependent claims

A system for treating in-stent restenosis in a lumen of a patient, comprising:

a catheter having a distal end, wherein the distal end comprises an inner inflatable member defining an inner chamber configured to receive a working liquid and an outer inflatable member enclosing the inner inflatable member and defining an outer chamber configured to contain an acoustic coupling fluid;
and
a controller coupled to the catheter and configured to activate and control an acoustic wave source coupled to the distal end and configured to deliver lithotripsy pulses that propagate through the acoustic coupling fluid and through the outer inflatable member, activate and control a thermal energy source configured to heat the working liquid in the inner chamber;
and one or more pumps for delivering the working liquid and the acoustic coupling fluid to the distal end.

1 more element

Dependencies are inferred from the claim text.

Methods and Devices for Endovascular Treatment

Life of this patent

Methods and Devices for Endovascular Treatment

Life of this patent

Abstract

Claims20