Femoral aortic access modular stent assembly and method

Patent metadata

Field	Value
Publication number	US-11083605-B2
Application number	US-201916367922-A
Country	US
Kind code	B2
Filing date	Mar 28, 2019
Priority date	Mar 28, 2019
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

The techniques of this disclosure generally relate to a modular stent device that is deployed into the ascending aorta via femoral access. The modular stent device is a base or anchor component to which additional modular stent devices can be attached to exclude diseased areas of the aorta while at the same time allowing perfusion of the brachiocephalic artery, the left common carotid artery, and/or the left subclavian artery.

First claim

What is claimed is:

1. A method comprising:
deploying a first modular stent device in an aorta, the first modular stent device including:
a first main body;
a first bypass gate extending from the first main body; and
a first artery leg extending from the first main body;
wherein the first main body has a first longitudinal axis through a center of the first main body, the first bypass gate has a second longitudinal axis through a center of the first bypass gate, and the first artery leg has a third longitudinal axis through a center of the first artery leg, the first, second, and third longitudinal axes are parallel with one another when the first modular stent device is in a relaxed configuration;
wherein the first artery leg is shorter than the first bypass gate;
wherein the first main body has a first diameter, the first bypass gate has a second diameter, and the first artery leg has a third diameter, the second diameter being greater than the third diameter and the first diameter being greater than the second diameter and the third diameter together at a transition region where the first main body meets the first bypass gate and the first artery leg;
wherein the first artery leg has a greater radial force than a radial force of the first bypass gate;
the first main body is deployed in an ascending aorta;
the first bypass gate and the first artery leg are deployed in the aorta and the greater radial force of the first artery leg causes the first bypass gate to collapse preferentially to the first artery leg;

deploying a first bridging stent graft within the first artery leg and extending into a brachiocephalic artery;
deploying a second modular stent device in the first bypass gate, the second modular stent device including:
a second main body;
a second bypass gate extending from the second main body; and
a second artery leg extending from the second main body;
wherein the second main body has a fourth longitudinal axis through a center of the second main body, the second bypass gate has a fifth longitudinal axis through a center of the second bypass gate, and the second artery leg has a sixth longitudinal axis through a center of the second artery leg, the fourth, fifth, and sixth longitudinal axes are parallel with one another when the second modular stent device is in a relaxed configuration;
wherein the second artery leg is shorter than the second bypass gate, the second main body has a fourth diameter, the second bypass gate has a fifth diameter, and the second artery leg has a sixth diameter, the fifth diameter being greater than the sixth diameter and the fourth diameter being greater than the fifth diameter and the sixth diameter together at a transition region where the second main body meets the second bypass gate and the second artery leg;

the second main body and at least a portion of the second artery leg are deployed within the first bypass gate; and
deploying a second bridging stent graft within the second artery leg and extending into a branch vessel selected from a left common carotid artery or a left subclavian artery, wherein the second bridging stent graft extends from a distal opening of the second artery leg that is located proximal to the branch vessel.

2. The method of claim 1 , wherein the second bridging stent graft extends into the left common carotid artery.

3. The method of claim 2 , wherein the second bridging stent graft extends into the left subclavian artery.

4. The method of claim 1 further comprising coupling a proximal cuff to the first main body.

5. The method of claim 1 wherein a radiopaque marker is coupled to the first main body and is aligned with the first artery leg.

6. The method of claim 1 further comprising controlling proximal deployment accuracy of the first main body with a tip capture mechanism.

Assignees

• Medtronic Vascular Inc

Inventors

• Perkins Keith
• Borglin Zachary
• Stiger Mark
• Benton Julie
• Claessens Steven
• Rowe Travis
• Young Mark

Classifications

• A61F2/852

  Two or more distinct overlapping stents · CPC title

• A61F2250/0018

  differing in elasticity, stiffness or compressibility · CPC title

• A61F2/856

  Single tubular stent with a side portal passage · CPC title

• A61F2/90 Primary

  characterised by a net-like or mesh-like structure · CPC title

• A61F2002/061

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