Mechanical Retraction Via Tethering for Lung Volume Reduction

Patent metadata

Field	Value
Publication number	US-2016015377-A1
Application number	US-201514795268-A
Country	US
Kind code	A1
Filing date	Jul 9, 2015
Priority date	Jul 18, 2014
Publication date	Jan 21, 2016
Grant date	—

Abstract

A device and method for reducing the volume of a tissue region, the device including a first fixation element, a second fixation element, and a tethering device, where the first and second fixation elements are slidably secured onto said tether, and the first and second fixation elements are radially self-expanding fixation elements.

First claim

1 . A device for reducing the volume of a tissue region, comprising a first fixation element, a second fixation element, and a tethering device, wherein said first and second fixation elements are slidably secured onto said tether, and said first and second fixation elements are radially self-expanding fixation elements.

2 . The device of claim 1 , further comprising a locking feature at at least one of said first and second fixation elements so as to restrict said at least one first or second fixation element from sliding along said tether.

3 . The device of claim 2 , wherein said locking feature comprises a tang element within said at least one first or second fixation element to restrict movement of said tether.

4 . The device of claim 1 , wherein said first and second fixation elements comprise a shape memory material.

5 . The device of claim 4 , wherein said shape memory material is nitinol.

6 . The device of claim 1 , further comprising a tubular delivery device having an open interior into which said device may be held such that said first and second fixation elements are compressed within the open interior of said delivery device.

7 . The device of claim 1 , wherein at least one of said fixation elements can be compressed after being expanded.

8 . The device of claim 1 , further comprising a coating comprising an anti-microbial composition.

9 . A method of achieving reduction of a volume of tissue, comprising the steps of:
i. guiding a distal end of a tubular delivery device having an open interior region into a first target site of a tissue, wherein said tubular delivery device contains an implantable device within the open interior of the tubular delivery device, the implantable device comprising:
(a) a first radially self-expanding fixation element;
(b) a second radially self-expanding fixation element; and
(c) a tethering device, wherein said first and second fixation elements are slidably secured onto said tether;
ii. releasing said first radially self-expanding fixation element from the open interior of the tubular delivery device, such that the first radially self-expanding fixation element expands and contacts the first target site of tissue; iii. positioning said distal end of the tubular delivery device to a second target site within said tissue, and releasing said second radially self-expanding fixation element from the open interior of the tubular delivery device, such that the second radially self-expanding fixation element expands and contacts the second target site of tissue; and iv. pulling said tethering device such that the first radially self-expanding fixation element is pulled proximally towards the second fixation element to a desired length.

10 . The method of claim 9 , further comprising the step of locking said second radially self-expanding fixation element after said step of pulling said tethering device.

11 . The method of claim 9 , further comprising the step of locking said second radially self-expanding fixation element prior to the step of pulling said tethering device.

12 . The method of claim 9 , wherein each of said first and second fixation elements is generally shaped so as to fit into a delivery device in a compressed state, wherein each of said first and second fixation elements has a first end and a second end and an intervening body therebetween, and wherein each intervening body has a plurality of slits cut therein to provide a plurality of axially configured struts.

13 . The method of claim 12 , wherein said fixation elements are treated so as to be self-expanding in a radially outward direction.

14 . The method of claim 13 , wherein said fixation elements comprise a shape memory material.

15 . The method of claim 14 , wherein said fixation elements comprise nitinol.

16 . The method of claim 9 , wherein said first fixation element is locked to said tethering device so as to restrict said first fixation element from sliding along said tethering device.

17 . The method of claim 9 , further comprising the step of compressing said first radially self-expanding fixation element after said step (ii) of releasing said first radially self-expanding fixation element.

18 . The method of claim 17 , further comprising the step of allowing said first radially self-expanding fixation element to expand radially after said step of compressing said first radially self-expanding fixation element after said step (ii) of releasing said first radially self-expanding fixation element.

Assignees

• Ethicon Inc

Inventors

• Cedro Jr Rudolph
• Smith Daniel J

Classifications

• A61B2017/00809

  Lung operations · CPC title

• A61B2017/0414

  having a suture-receiving opening, e.g. lateral opening · CPC title

• A61B17/12104

  in an air passage · CPC title

• A61B2017/0448

  Additional elements on or within the anchor · CPC title

• A61B2017/0458

  Longitudinal through hole, e.g. suture blocked by a distal suture knot · CPC title