# US 10,864,071 B2 · Stent graft

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- Number: US 10,864,071 B2
- Document ID: US10864071B2
- Status: Granted
- Kind: B2
- Application number: 15/565,736
- Filed: 2016-04-20
- Published: 2018-05-03
- Granted: 2020-12-15
- Earliest claimed: 2015-04-21
- Assignees: Bentley InnoMed GmbH
- Applicants: Nikola Obradovic
- Inventors: Nikola Obradovic
- Web page: https://patentgrep.com/patent/US10864071B2

## CPC

- A61F 2/07: Stent-grafts
- A61F 2/915: with bands having a meander structure, adjacent bands being connected to each other
- A61F 2/958: Inflatable balloons for placing stents or stent-grafts
- A61F 2002/072: {Encapsulated stents, e.g. wire or whole stent embedded in lining}
- A61F 2002/075: {the stent being loosely attached to the graft material, e.g. by stitching}
- A61F 2002/91575: {connected peak to trough}
- A61F 2210/0014: using shape memory or superelastic materials, e.g. nitinol
- A61F 2220/005: using adhesives
- A61F 2220/0091: connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

Stent graft comprising a stent (1) having a plurality of ring segments (3) arranged side by side and connected with each other by connecting webs (7) having a meandering pattern, and at least one membrane (2), characterized in that a plurality of connecting webs (7) between adjacent ring segments (3) are provided with flexible tongues (6), which are arranged in a form-closed manner in the connecting webs (7) and which are resiliently movable against the connecting webs (7), wherein the membrane (2) being clamped between flexible tongues (6) and connecting webs (7).

## Claims

### Claim 1

Stent graft comprising a stent (1) having a plurality of ring segments (3) the ring segments having a meandering pattern and being arranged side by side, adjacent ring segments (3) being connected with each other by connecting webs (7), the stent graft further comprising at least one membrane (2), characterized in that a plurality of connecting webs (7) between two adjacent ring segments (3) are provided with flexible tongues (6), which are arranged in a form-closed manner in the connecting webs (7) and which are resiliently movable with respect to the connecting webs (7), wherein the at least one membrane (2) is clamped between the flexible tongues (6) and the connecting webs (7), and wherein at least one of the two adjacent ring segments (3) between which the connecting webs with flexible tongues extend has freely ending webs which are aligned in parallel to the flexible tongues and are arranged at turning points of the at least one of the two adjacent ring segments, each of the freely ending webs (9) projecting into a gap between two connecting webs (7), said freely ending webs (9) serving to additionally secure the at least one membrane (2).

### Claim 2 (depends on 1)

Stent graft according to claim 1, characterized in that the flexible tongues (6) point out of the stent.

### Claim 3 (depends on 2)

Stent graft according to claim 2, wherein the at least one membrane (2) is in the form of a tube.

### Claim 4 (depends on 3)

Stent graft according to claim 3, characterized in that the tube covers the outside of the stent (1).

### Claim 5 (depends on 4)

Stent graft according to claim 4, characterized in that the tube has an edge region clamped in place via the flexible tongues (6), the edge region being folded inwardly.

### Claim 6 (depends on 1)

Stent graft according to claim 1, characterized in that the at least one membrane (2) is secured in the flexible tongues (6) by additional bonding with adhesive tape.

### Claim 7 (depends on 1)

Stent graft according to claim 1, characterized by a plurality of membranes (2) arranged in sections, each of which is secured to flexible tongues (6).

### Claim 8 (depends on 1)

Stent graft according to claim 1, characterized in that the at least one membrane (2) consists of an ePTFE tube.

### Claim 9 (depends on 1)

Stent graft according to claim 1, characterized in that the stent (1) is a balloon-expandable stent.

### Claim 10 (depends on 9)

Stent graft according to claim 9 capable of being crimped onto a balloon of a balloon catheter.

### Claim 11 (depends on 1)

Stent graft according to claim 1 wherein the stent is self-expanding and made of a shape-memory alloy.

### Claim 12 (depends on 1)

Stent graft according to claim 1, characterized in that the flexible tongues (6) have a free end and are of angled configuration at their free end or have a branch (11) in their configuration.