Implantable medical device with lumen constriction

Patent metadata

Field	Value
Publication number	US-10398443-B2
Application number	US-201715699311-A
Country	US
Kind code	B2
Filing date	Sep 8, 2017
Priority date	Jun 25, 2014
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

An implantable medical device includes a support structure which is twistable in a longitudinal direction of the device. A sleeve of filter or occluding material is attached to the ends of the structure. The structure in practice twists on itself in the longitudinal direction, causing the sleeve to twist on itself and as a result to close the lumen through the sleeve. The device provides reliable closure and as a result occlusion of a vessel. It is also able to be delivered over a guide wire. In another embodiment, the support structure includes a wire which coils around the sleeve to constrict the sleeve and as a result to close a lumen of the sleeve.

First claim

The invention claimed is:

1. An implantable medical device comprising:
first and second spaced radially expandable end elements, each of the first and second spaced radially expandable end elements providing an interior passage;
a tubular member disposed in the interior passages through the the first and second spaced radially expandable end elements and extending between the first and second spaced radially expandable end elements, the tubular member having a lumen therewithin;
and a wire element attached between the first and second spaced radially expandable end elements, the wire element being coilable around the tubular member in a coil of a plurality of turns;
wherein coiling of the wire element causes radial constriction of the tubular member and thereby of the lumen thereof.

2. An implantable medical device according to claim 1 , wherein coiling of the wire element causes closure of the lumen of the tubular member.

3. An implantable medical device according to claim 1 , wherein the device is an occlusion device and the tubular member is formed of occluding material, or the device is a filter device and the tubular member is formed of filtering material.

4. An implantable medical device according to claim 1 , wherein the first and second spaced radially expandable end elements are each in the form of at least one stent ring.

5. An implantable medical device according to claim 1 , wherein the wire element is formed from a plastically deformable material, spring steel or a shape memory material.

Assignees

• Cook Medical Technologies Llc

Inventors

• Bödewadt Tue Thuren
• Hansen Christina Rauff
• Rasmussen Erik E

Classifications

• A61F2002/016

  made from wire-like elements · CPC title

• A61B17/12168

  having a mesh structure (A61B17/1214 takes precedence) · CPC title

• A61B17/12109

  in a blood vessel · CPC title

• A61B17/12145 Primary

  having a pre-set deployed three-dimensional shape (methods of manufacturing A61B2017/00526) · CPC title

• A61F2002/018

  made from tubes or sheets of material, e.g. by etching or laser-cutting · CPC title