# US 12,004,976 B2 · Telescoping stents

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- Number: US 12,004,976 B2
- Document ID: US12004976B2
- Status: Granted
- Kind: B2
- Application number: 18/120,173
- Filed: 2023-03-10
- Published: 2023-07-20
- Granted: 2024-06-11
- Earliest claimed: 2023-03-10
- Assignees: SaiNath Intellectual Properties, LLC
- Applicants: Sainath Intellectual Properties, LLC
- Inventors: Venkata Sesha Sayi Nath Iyunni
- Web page: https://patentgrep.com/patent/US12004976B2

## CPC

- A61F 2/852: Two or more distinct overlapping stents
- A61F 2/07: Stent-grafts
- A61F 2/848: having means for fixation to the vessel wall, e.g. barbs
- A61F 5/0076: {preventing normal digestion, e.g. Bariatric or gastric sleeves}
- A61L 31/022: {Metals or alloys}
- A61L 31/06: obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds {(A61L31/041 takes precedence)}
- A61L 31/14: Materials characterised by their function or physical properties {, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials}
- A61F 2002/045: {Stomach, intestines}
- A61F 2220/0008: Fixation appliances for connecting prostheses to the body
- A61F 2220/0033: made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
- A61F 2220/0075: sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
- A61F 2220/0083: using hook and loop-type fasteners
- A61F 2250/0003: having an inflatable pocket filled with fluid, e.g. liquid or gas
- A61F 2250/0039: differing in diameter
- A61F 2250/0065: telescopic
- 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)
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)

## Abstract

The invention described herein relates to telescoping stents. The embodiments described herein allow for adequate securement to, accommodation for movement by, and prevention of injury of tubular organs or hollow areas of the body. Certain embodiments relate to telescoping stents with loop interlocking mechanisms. Further embodiments relate to telescoping stents with ball-in-groove interlocking mechanisms.

## Claims

### Claim 1

A telescoping stent, comprising:
a proximal anchor;
a distal anchor;
two or more tubular segments each comprising a longitudinal axis and a cross-sectional plane;
a first tubular segment of the two or more tubular segments comprising:
an interior wall comprising one or more longitudinal loops extending inward from the interior wall of the first tubular segment; and
a second tubular segment of the two or more tubular segments comprising:
an exterior wall comprising one or more perpendicular loops extending radially outward from the cross-sectional plane of the second tubular segment,
wherein:
the first tubular segment and the second tubular segment have different diameters and overlap along their longitudinal axes; and
a first longitudinal loop of the first tubular segment passes through a first perpendicular loop of the second tubular segment.

### Claim 2 (depends on 1)

The stent of claim 1, wherein the proximal anchor comprises an inflatable ring, medical staples, and/or sutures.

### Claim 3 (depends on 1)

The stent of claim 1, wherein the proximal anchor has a diameter of about 5.0-30.0 mm (15 Fr-90 Fr).

### Claim 4 (depends on 1)

The stent of claim 1, wherein the distal anchor comprises an inflatable ring, medical staples, and/or sutures.

### Claim 5 (depends on 1)

The stent of claim 1, wherein the distal anchor has a diameter of about 5.0-30.0 mm (15 Fr-90 Fr).

### Claim 6 (depends on 1)

The stent of claim 1, wherein each tubular segment comprises medical grade silicone, latex, polyurethane, stainless steel or plastic.

### Claim 7 (depends on 1)

The stent of claim 1, wherein each tubular segment is about 1.0-5.0 cm in length with a diameter of about 5.0-30.0 mm (15 Fr-90 Fr).

### Claim 8 (depends on 1)

The stent of claim 1, wherein the one or more longitudinal loops comprise medical grade silicone, latex, polyurethane, plastic, Dacron, or silk.

### Claim 9 (depends on 1)

The stent of claim 1, wherein the one or more longitudinal loops are ovoid or rectangular in shape and about 0.1-4.0 cm in length and about 1.0-5.0 mm in width.

### Claim 10 (depends on 1)

The stent of claim 1, wherein the one or more perpendicular loops comprise medical grade silicone, latex, polyurethane, plastic, Dacron, or silk.

### Claim 11 (depends on 1)

The stent of claim 1, wherein the one or more perpendicular loops have a diameter of about 1.0-5.0 mm.

### Claim 12 (depends on 1)

The stent of claim 1, wherein the one or more perpendicular loops are triangular, quadrangular, or orthogonal in shape.

### Claim 13 (depends on 1)

The stent of claim 1 further comprising a sheath affixed to the exterior wall.

### Claim 14 (depends on 13)

The stent of claim 13 wherein the sheath comprises an irregular outer surface.

### Claim 15 (depends on 13)

The stent of claim 13 further comprising a sheath affixed to the interior wall of the first tubular segments.

### Claim 16 (depends on 1)

The stent of claim 1 further comprising a sheath affixed to the interior wall of the first tubular segments.

### Claim 17 (depends on 1)

The stent of claim 1 further comprising a one-way sock valve.