# US 11,896,509 B2 · Tissue anchoring device

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- Number: US 11,896,509 B2
- Document ID: US11896509B2
- Status: Granted
- Kind: B2
- Application number: 17/744,683
- Filed: 2022-05-15
- Published: 2022-10-20
- Granted: 2024-02-13
- Earliest claimed: 2020-09-22
- Assignees: Endoron Medical Ltd.
- Applicants: Endoron Medical Ltd.
- Inventors: Eyal Teichman; Ron Karmeli; Tanhum Feld
- Web page: https://patentgrep.com/patent/US11896509B2

## CPC

- A61F 2/07: Stent-grafts
- A61F 2/958: Inflatable balloons for placing stents or stent-grafts
- A61F 2/848: having means for fixation to the vessel wall, e.g. barbs
- A61F 2002/823: {Stents, different from stent-grafts, adapted to cover an aneurysm}
- A61F 2002/8483: {Barbs}
- A61F 2002/9583: {Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve}
- A61F 2220/0016: with sharp anchoring protrusions, e.g. barbs, pins, spikes
- A61F 2220/0033: made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
- A61F 2230/001: Figure-8-shaped, e.g. hourglass-shaped
- A61F 2230/0017: Angular shapes
- A61F 2250/0039: differing in diameter
- 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

A tissue anchoring device including an expandable frame and at least one anchor having a tissue penetrating portion. The anchor is attached to the expandable frame through a plurality of beams forming a frame or a tab that enable the anchor to elastically bend with respect to a longitudinal axis of the expandable frame.

## Claims

### Claim 1

A tissue anchoring device comprising an expandable frame having a proximal end and a distal end and at least one anchor having a tissue penetrating portion attached to said expandable frame through a support frame including a first beam and at least one second beam being indirectly attached to said expandable frame, said at least one anchor is capable of elastically bending with respect to a longitudinal axis of said expandable frame through torsion of said first beam and bending of said at least one second beam of said support frame, wherein said tissue penetrating portion includes two tissue-penetrating prongs and a restraining element for restraining said two tissue-penetrating prongs in a parallel configuration for co-delivery into a tissue and for releasing said two tissue-penetrating prongs to splay out away from each other following penetration through said tissue and resulting backward movement of said restraining element along said two tissue-penetrating prongs.

### Claim 2 (depends on 1)

The device of claim 1, wherein said support frame is shaped as a pentagon.

### Claim 3 (depends on 1)

The device of claim 1, wherein said tissue penetrating portion of said at least one anchor is pointed at an angle of 45-70 degrees with respect to a longitudinal axis of said expandable frame.

### Claim 4 (depends on 3)

The device of claim 3, wherein said at least one anchor can be elastically bent from a first direction in which said tissue penetrating portion points at said angle to a second direction in which said tissue penetrating portion is generally pointing parallel to said longitudinal axis of said frame.

### Claim 5 (depends on 1)

The device of claim 1, wherein said restraining element is a restraining sleeve.

### Claim 6 (depends on 5)

The device of claim 5, wherein said tissue penetrating portion includes a stop for preventing movement of said restraining sleeve over a tissue penetrating tip of said tissue penetrating portion.