US 2007/0167976 A1 · Support structures for embolic filtering devices

Abstract

An inner support structure for an embolic filtering device includes a tubular member having a first support region for supporting the proximal portion of a filter assembly and a second support region for supporting the distal portion of the filter assembly. The inner support structure facilitates rotation and restricts longitudinal movement of the embolic filtering device relative to a guide wire. Alternatively, the inner support structure includes a bushing coupled to the guide wire and a sleeve with a head on its proximal end positioned within a cavity in the bushing, thereby facilitating rotation and restricting longitudinal movement of the sleeve. The proximal portion of the filter assembly is supported on the sleeve. A sleeve for retaining the struts of an expandable cage of the embolic filtering device includes a central lumen for positioning the sleeve onto a guide wire and peripheral lumens for positioning and retaining the struts.

Claims21

Dependent claims

1-32. (canceled)

A sleeve for coupling an embolic filtering device to a delivery device, the sleeve comprising:

a longitudinal member having a central lumen extending substantially longitudinally throughout the length of the longitudinal member, the central lumen being sized to receive a delivery device and being positioned substantially centered along a longitudinal axis of the longitudinal member;
and
at least one peripheral lumen extending substantially longitudinally throughout the length of the longitudinal member and substantially parallel to the longitudinal axis of the longitudinal member, the at least one peripheral lumen being sized to receive and retain a strut of an embolic filtering device.

A method of coupling a strut of an embolic filtering device to a delivery device, comprising:

providing a delivery device;
providing a sleeve, the sleeve including,
a longitudinal member having a central lumen extending substantially longitudinally throughout the length of the longitudinal member, the lumen being sized to receive a delivery device and being positioned substantially centered along a longitudinal axis of the longitudinal member, and
at least one peripheral lumen extending substantially longitudinally throughout the length of the longitudinal member and substantially parallel to the longitudinal axis of the longitudinal member, the at least one peripheral lumen being sized to receive and retain a strut of an embolic filtering device;
providing an embolic filtering device having at least one strut;
inserting the at least one strut of the embolic filtering device into the at least one peripheral lumen of the sleeve;
coupling the at least one strut of the embolic filtering device to the at least one peripheral lumen of the sleeve;
inserting the delivery device into the central lumen of the sleeve;
and
coupling the sleeve to the delivery device.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application

11/698,516Filed 25 Jan 2007

Priority

27 Jun 2002

Published

19 Jul 2007

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61F 2/013
Filters implantable into blood vessels: distal protection devices, i.e. devices placed distally in combination with another endovascular…
A61F 2002/015
Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting: stop…
A61F 2002/018
Filters implantable into blood vessels: made from tubes or sheets of material, e.g. by etching or laser-cutting
A61F 2230/0006
Rounded shapes, e.g. with rounded corners: circular

Support structures for embolic filtering devices

Life of this patent

Support structures for embolic filtering devices

Life of this patent

Abstract

Claims21