IMPLANT, ESPECIALLY FOR THE OCCLUSION OF BIFURCATION ANEURYSMS

• US 20140058420A1
• Filed: 02/22/2012
• Published: 02/27/2014
• Est. Priority Date: 02/22/2011
• Status: Active Grant

• Current Assignee: Phenox Gmbh
• Original Assignee: Phenox Gmbh
• Inventors: Hannes, Ralf, Monstadt, Hermann
• Granted Patent: US 9,107,670 B2
• Time in Patent Office: Days
• US Class Current: 606/158
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12118 for positioning in conjunction with a stent
• CPC Class Codes: A61F 2002/823 Stents, different from stent-grafts, adapted to cover an aneurysm
• CPC Class Codes: F04C 2270/0421 Controlled or regulated

Abstract

The invention relates to an implant (1) to be used for the occlusion of aneurysms in the region of vessel branches, in particular bifurcation aneurysms (A), with a mesh structure (3, 4), said implant comprising—from proximal to distal—sections (a) to (d) where

(a) is a section tapering down proximally in which the mesh structure is brought together to form one or several coupling elements (10),
(b) is a fixing section by means of which the implant can be supported on the to wall of a vessel,
(c) is a permeable section for the region of the vessel bifurcation, and
(d) is a distal section in which the implant is expanded in comparison to section (b) and which is intended for placement into the aneurysm (A), wherein a separation zone (T1, T2) being arranged in the area of sections (c) or (d).

Claims

1. Implant (1) to be used for the occlusion of aneurysms in the region of vessel branches, in particular bifurcation aneurysms (A), with a mesh structure (3, 4), said implant comprising—

from proximal to distal—

sections (a) to (d);

(a) is a section tapering down proximally in which the mesh structure is brought together to form one or several coupling elements (10),

(b) is a fixing section by means of which the implant can be supported on the wall of a vessel,

(c) is a permeable section for the region of the vessel bifurcation, and

(d) is a distal section in which the implant is expanded in comparison to section (b) and which is intended for placement into the aneurysm (A),

wherein a separation zone (T1, T2) being arranged in the area of sections (c) or (d).

2. Implant according to claim 1, characterized in that the distal section (d) is widened out in a trumpet- or basket-like shape through a braiding or by means of loops (12).

3. Implant according to claim 1, characterized in that it consists of shape-memory material.

4. Implant according to claim 1, characterized in that the implant at least partially is cut out of a tube.

5. Implant according to claim 1, characterized in that the separation zone (T1, T2) is provided with separation elements consisting of filaments (6) extending substantially in a plane crosswise to the implant (1).

6. Implant according to claim 4, characterized in that the separation zone (T1, T2) is cut out of the tube.

7. Implant according to claim 1, characterized in that the proximal section (a) terminates in a coupling wire (10).

8. Implant according to claim 1, characterized in that the distal section (d) is designed so as to be atraumatic, soft, and elastic.

9. Implant according to claim 1, characterized in that the distal section (d) consists of a plurality of loops (12) which are connected with section (c).

10. Implant according to claim 9, characterized in that the loops (12) are provided with eyelets (17) in the distal section (d).

11. Implant according to claim 9, characterized in that the loops (12) in the distal section (d) are provided at the distal end with rounded spouts (18).

12. Implant according to claim 1, characterized in that it is of laterally closed tubular design.

13. Implant according to claim 1, characterized in that the implant is partially or continuously slotted.

14. Implant according to claim 1, characterized in that marker elements (8) are arranged in the distal section (d).

15. Implant according to claim 1 which is coupled to a guidewire (9).