US 2015/0032144 A1 · VASCULAR DEVICES AND METHODS WITH DISTAL PROTECTION

Abstract

A device for treating a thrombus in a blood vessel includes a treatment section and a filter section. The treatment section can be generally cylindrical and comprise a plurality of individual filaments and individual cells, as well as a first edge and a second edge along a longitudinal axis of the device. A varying degree of overlap of the first edge and the second edge may be provided as the device transitions from a volume-reduced form to an expanded form. The filter section can be generally conical and accommodate the variable degree of overlap by providing a first section, distal to the treatment section, that has a variable degree of overlap with a non-continuous, interrupted surface. A second section, distal to the first section, has a continuous surface for providing effective filtering of debris and emboli dislodged from the thrombus during action upon the thrombus by the treatment section.

Claims21

Dependent claims

An expandable medical device, comprising:

a treatment section forming a cylindrical structure comprising a proximal end and a distal end;
wherein the cylindrical structure has a curled mesh structure such that a seam extends along a longitudinal axis of the expandable medical device;
wherein the treatment section is configured to be delivered in a volume-reduced form having overlapping edges;
and wherein the cylindrical structure is configured to at least partially uncurl to allow the treatment section to assume a volume-enlarged form;
a filter section attached to the treatment section, forming a conical structure, and comprising (i) a first section, distal to the treatment section, wherein the first section is formed such that a distal seam extends along the longitudinal axis of the expandable medical device;
wherein the first section is configured to have overlapping distal edges while within a catheter;
and wherein the first section is configured to at least partially uncurl when released from the catheter;
and (ii) a second section, distal to the first section.

5 more elements

Dependencies are inferred from the claim text.

Vascular devices and methods with distal protection

Life of this patent

Vascular devices and methods with distal protection

Life of this patent

Abstract

Claims21