# US 2014/0156020 A1 · Stent system and methods of use

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- Number: US 2014/0156020 A1
- Document ID: US20140156020A1
- Status: Published application
- Kind: A1
- Application number: 13/705,002
- Filed: 2012-12-04
- Published: 2014-06-05
- Earliest claimed: 2012-12-04
- Inventors: Shanda Haley Blackmon
- Web page: https://patentgrep.com/patent/US20140156020A1

## CPC

- A61F 2/04: Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts (A61F2/18, A61F2/20 take precedence; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95)
- A61F 2/2476: {Valves implantable in the body not otherwise provided for}
- A61F 2/848: having means for fixation to the vessel wall, e.g. barbs
- A61F 2/24: Heart valves {; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body}
- A61F 2002/044: {Oesophagi or esophagi or gullets}
- 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 stent system is provided that includes a stent and a migration-prevention bridle extending from the stent and secured to a portion of the body so as to resist or prevent movement of the stent relative to the portion of the body. Methods of use include positioning a stent that includes a one-way valve in an unexpanded orientation in an passageway of a patient, expanding the stent after being located adjacent an esophageal perforation such that the one-way valve controls the flow of material through the esophageal passageway, and extending a migration-prevention bridle into the esophageal passageway and securing it to the stent. A second portion of the migration-prevention bridle is then secured to a body part of the patient to help resist or prevent migration of the stent. Additional methods, systems, stent apparatuses, and a kit including a stent and instructions for the use of same are also provided.

## Claims

### Claim 1

A stent system, comprising:
a stent positioned in a body passageway of a body that has a stent-repairable abnormality and engaging the body passageway adjacent the stent-repairable abnormality, wherein the stent includes a one-way valve that inhibits or prevents material from moving through the stent and the body passageway in one direction; and a migration-prevention bridle extending from the stent and secured to a portion of the body so as to resist or prevent movement of the stent relative to the portion of the body.

### Claim 2 (depends on 1)

The system of claim 1, wherein the portion of the body to which the migration-prevention bridle is secured comprises a nose.

### Claim 3 (depends on 2)

The system of claim 2, wherein the migration-prevention bridle comprises a first portion that extends through a first nostril defined by the nose and a second portion that extends through a second nostril defined by the nose, and wherein the first and second portions of the migration-prevention bridle are tied together to secure the migration-prevention bridle to the nose.

### Claim 4 (depends on 1)

The system of claim 1, wherein the stent-repairable abnormality comprises a perforation defined by at least one of the body passageway, a lesion, a stricture, a dysphagia, a fistula, an injury, an insult, and a cancer.

### Claim 5 (depends on 1)

The system of claim 1, wherein the stent comprises an expandable mesh base, and wherein a retrieval loop is operatively associated with to the expandable mesh base and located on an end portion of the stent, and is adapted to reduce the diameter of the end portion.

### Claim 6 (depends on 5)

The system of claim 5, wherein the migration-prevention bridle extends through a portion of the expandable mesh base that is spaced apart from the retrieval loop.

### Claim 7 (depends on 1)

The system of claim 1, wherein the portion of the body that the migration-prevention bridle is secured to is spaced apart from the position of the stent, and wherein a fixation device is placed through the migration-prevention bridle and the portion of the body to secure the migration-prevention bridle thereto.

### Claim at position 8

8-23. (canceled)

### Claim 24

A retrievable stent system, comprising:
a self-expanding stent including a mesh base and an end portion; and
a retrieval loop that is coupled to the end portion and that reduces the diameter of the end portion of the self-expanding stent in response to a force applied thereto that is directed away from the mesh base.

### Claim at position 10

25-28. (canceled)

### Claim 29

A stent apparatus comprising:
a one-way valve that inhibits or prevents material from moving through the stent in one direction after expansion in a body passageway; and
a migration-prevention bridle adapted to extend from the stent and to secure the bridle to a portion of the body so as to resist or prevent movement of the stent relative to the portion of the body.

### Claim 30

A kit comprising:
a stent comprising a one-way valve that inhibits or prevents material from moving through the stent in one direction after expansion in a body passageway; and a migration-prevention bridle adapted to extend from the stent and to secure the bridle to a portion of the body so as to resist or prevent movement of the stent relative to the portion of the body; and a set of instructions to carry out the surgical deployment of the stent to the body passageway.

### Claim 31 (depends on 24)

The retrievable stent system of claim 24, further comprising a one-way valve that inhibits or prevents material from moving through the stent in one direction after expansion in a body passageway.

### Claim 32 (depends on 24)

The retrievable stent system of claim 24, adapted and configured for deployment to a human esophagus.

### Claim 33 (depends on 24)

The retrievable stent system of claim 24, comprised of a nitinol, a plastic, a polymer, a silicone, or any combination thereof.

### Claim at position 16

34-37. (canceled)