US 2021/0267626 A1 · ADJUSTABLE BLOCKAGE-CUTTING DEVICE

Abstract

A catheter used for percutaneous endovascular procedures is described. The catheter is configured to be used for engagement and treatment of obstructive lesions in a patient's vasculature. The catheter includes a tube having a leading edge that is configured to score or cut a lesion in a vasculature. The tube may be an expandable outer tube, and placed around an inflatable inner tube, such that inflation of the inner tube expands the outer tube. Expansion of the inner tube may connect or laterally lock the inner tube to the outer tube, allowing both tubes to move in unison through the vasculature. The leading edge can score or cut lesions as it moves in the vasculature.

Claims20

Dependent claims

An endovascular catheter system configured to remove a blockage in a vessel of a patient, the endovascular catheter comprising:

an inflatable inner tube configured to operate in a deflated configuration and an inflated configuration;
and
an expandable outer tube configured to advance longitudinally over the inner tube when the inner tube is in the deflated configuration, the outer tube including a leading edge having blockage-cutting features configured to remove at least a portion of the blockage in the vessel;
wherein the outer tube is made of a radially-expandable material such that inflation of the inner tube to the inflated configuration when the outer tube is located about the inner tube causes the outer tube to expand radially.

1 more element

Dependencies are inferred from the claim text.

Adjustable blockage-cutting device

Life of this patent

Adjustable blockage-cutting device

Life of this patent

Abstract

Claims20