Methods and apparatus for treatment of aneurysms adjacent branch arteries

Patent metadata

Field	Value
Publication number	US-11504223-B2
Application number	US-201916426610-A
Country	US
Kind code	B2
Filing date	May 30, 2019
Priority date	Apr 29, 2005
Publication date	Nov 22, 2022
Grant date	Nov 22, 2022

Abstract

A polymer coating/ring is employed to aid in the sealing and connection of modular elements used in body flow lumens for the exclusion and bypass of diseased regions of the flow lumen, such as where aneurysm occurs adjacent to branching blood vessels.

First claim

What is claimed is:

1. A method of excluding a site of an aneurysm from blood flow comprising:
delivering a stent graft in a compressed configuration to an aortic arch of a patient, the stent graft including a main body, wherein the main body includes a main body stent, a main body graft material coupled to the stent, and an aperture disposed through a surface of the main body graft material, wherein the aperture includes a neck portion extending outwardly from the main body, wherein the neck portion includes a neck portion graft material extending from and integral with the main body graft material and a neck portion stent;
deploying the stent graft at the aortic arch by radially expanding the stent graft such that at least a portion of the main body is in apposition with a wall of the aortic arch and the neck portion is aligned with one of the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery;
delivering an insert in a compressed configuration such that a portion of the insert is disposed within the neck portion; and
deploying the insert by radially expanding the insert such that an insertion end of the insert is disposed within the neck portion and a second portion of the insert extends from the neck portion and within one of the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery.

2. The method of claim 1 , wherein deploying the stent graft comprises aligning the neck portion with the left subclavian artery, and wherein deploying the insert comprises deploying the second portion of the insert within the left subclavian artery.

3. The method of claim 2 , wherein delivering the insert comprises delivering the insert in the compressed configuration within a catheter through the stent graft main body and through the neck portion after the stent graft has been deployed.

4. The method of claim 1 , wherein
the stent graft comprises three apertures and three neck portions, wherein deploying the stent graft comprises aligning each of the three neck portions with a corresponding one of the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery; and
the insert comprises three inserts, wherein deploying the insert comprises deploying each insert into a corresponding one of the three neck portions.

5. The method of claim 4 , wherein delivering the insert comprises delivering each of the three inserts in one catheter.

6. The method of claim 4 , wherein delivering the insert comprises delivering each of the three inserts in a different catheter.

7. The method of claim 1 , wherein deploying the stent graft comprises aligning the neck portion with the left subclavian artery.

8. The method of claim 1 , wherein the stent graft comprises three apertures and three neck portions, wherein deploying the stent graft comprises aligning each of the three neck portions with a corresponding one of the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery.

9. The method of claim 1 , wherein the main body stent is made of shape memory material, and wherein the step of deploying the stent graft comprises retracting an outer sheath of a catheter to enable the shape memory material to self-expand.

10. The method of claim 1 , wherein the stent graft is compressed over a balloon during the step of delivering the stent graft, and wherein deploying the stent graft comprises inflating the balloon.

11. The method of claim 1 , wherein the main body stent comprises a plurality of wires, each of the wires bent into a zig-zag configuration and joined at opposing ends to form a hoop.

12. The method of claim 1 , wherein the insert includes an insert stent and an insert graft material.

13. The method of claim 12 , wherein at least one of the neck portion and the insert includes a polymeric compound different from the neck portion graft material and the insert graft material, wherein the polymeric compound is located on an inside surface of the neck portion graft material, an outside surface of an insertion end of the insert graft material, or on both the inside surface of the neck portion graft material and the outside surface of the insertion end of the insert graft material.

Assignees

• Medtronic Vascular Inc

Inventors

• O'Brien Prema Ganesan
• Morris Jonathan
• Erickson David R
• Rust Matthew
• Hanson Curtis
• Chu Jack
• Thomas Charles

Classifications

• A61F2220/005

  using adhesives · CPC title

• A61F2002/061

  provided with means for allowing access to secondary lumens · CPC title

• A61F2/89

  the wire-like elements comprising two or more adjacent rings flexibly connected by separate members · CPC title

• A61F2/07 Primary

  Stent-grafts · CPC title

• A61F2002/075

  the stent being loosely attached to the graft material, e.g. by stitching · CPC title