# US 10,500,080 B2 · Suture esophageal stent introducer

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- Number: US 10,500,080 B2
- Document ID: US10500080B2
- Status: Granted
- Kind: B2
- Application number: 15/797,903
- Filed: 2017-10-30
- Published: 2018-05-03
- Granted: 2019-12-10
- Earliest claimed: 2016-10-31
- Assignees: Cook Medical Technologies LLC
- Applicants: Cook Medical Technologies LLC
- Inventors: Vincent McHugo; Triona Campbell; Gerard Treacy; Melissa Anenden; Criostoir O. Bhealtun
- Web page: https://patentgrep.com/patent/US10500080B2

## CPC

- A61F 2/9662: {the middle portion of the stent or stent-graft is released first}
- A61F 2/95: Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F 2/90: characterised by a net-like or mesh-like structure
- A61F 2/91: made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
- A61F 2/9517: {handle assemblies therefor}
- A61F 2002/9511: {the retaining means being filaments or wires}
- A61F 2002/9665: {with additional retaining means}
- A61F 2210/0004: bioabsorbable
- A61F 2210/0014: using shape memory or superelastic materials, e.g. nitinol
- 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 delivery system includes an elongate shaft including a proximal portion, a distal portion, at least one lumen extending at least partially therethrough, and a stent receiving portion on the distal portion of the elongate shaft. A stent is positioned on the stent receiving portion of the elongate shaft. A proximal constraining arrangement is engaged with a proximal end of the stent. A distal constraining arrangement is engaged with a distal end of the stent. A release wire is disposed through the elongate shaft and releasably engaged with portion of the proximal constraining arrangement and the distal constraining arrangement member. A handle assembly comprising a shuttle and a spring arrangement is positioned therein. A first brake assembly is disposed within the handle assembly and a second brake assembly is disposed within the handle assembly proximal to the first brake assembly.

## Claims

### Claim 1

A stent delivery system, comprising,
an elongate shaft including a proximal portion, a distal portion, at least one lumen extending at least partially therethrough, and a stent receiving portion on the distal portion of the elongate shaft;
a stent comprising a proximal end, a distal end, and a lumen therebetween positioned on the stent receiving portion of the elongate shaft, the stent having a first configuration and a second configuration;
a proximal constraining arrangement engaged with a proximal end of the stent, the proximal constraining arrangement comprising a first proximal constraining member having a proximal portion, a second proximal portion and a distal portion, and a second proximal constraining member having a proximal portion and a distal portion, the distal portion of the first proximal constraining member engaged with a first proximal portion of the stent and the distal portion of the second proximal constraining member engaged with a second proximal portion of the stent;
a distal constraining arrangement engaged with a distal end of the stent, the distal constraining arrangement comprising a first distal constraining member having a proximal portion, a second proximal portion, and a distal portion and a second distal constraining member having a proximal portion and a distal portion, the distal portion of the first distal constraining member engaged with a first distal portion of the stent and the distal portion of the second proximal constraining member engaged with a second distal portion of the stent;
a release wire disposed through the elongate shaft and releasably engaged with portion of the proximal constraining arrangement and the distal constraining arrangement member;
a handle assembly comprising a shuttle and a spring arrangement positioned therein, the shuttle operably connected to the proximal constraining arrangement,
a first brake assembly disposed within the handle assembly, the proximal constraining arrangement being coupled to a portion of the first brake assembly; and,
a second brake assembly disposed within the handle assembly proximal to the first brake assembly, the distal constraining arrangement being coupled to a portion of the second brake assembly; and
wherein the proximal constraining arrangement and the distal constraining arrangement applies an axial mechanical force to at least a portion of the stent in the first configuration.

### Claim 2 (depends on 1)

The stent delivery system of claim 1, wherein the first proximal constraining member and the second proximal constraining member are interwoven into the proximal end of the stent.

### Claim 3 (depends on 1)

The stent delivery system of claim 1, wherein a proximal suture arrangement is disposed at the proximal end of the stent and the first proximal constraining member and the second proximal constraining member are interwoven into the proximal suture arrangement.

### Claim 4 (depends on 1)

The stent delivery system of claim 1, wherein the first distal constraining member and the second distal constraining member are interwoven into the distal end of the stent.

### Claim 5 (depends on 1)

The stent delivery system of claim 1, wherein a distal suture arrangement is disposed at the distal end of the stent and the first distal constraining member and the second proximal constraining member are interwoven into the distal suture arrangement.

### Claim 6 (depends on 1)

The stent delivery system of claim 1, wherein the spring arrangement is engageable with the second brake assembly.

### Claim 7 (depends on 1)

The stent delivery system of claim 1, wherein the elongate shaft further comprises a first lumen and a second lumen.

### Claim 8 (depends on 7)

The stent delivery system of claim 7, wherein the distal constraining assembly is at least partially disposed in the first lumen.

### Claim 9 (depends on 1)

The stent delivery system of claim 1, wherein a release wire is disposed through the elongate shaft and releasably engaged with the proximal constraining member and the distal restraining member.

### Claim 10 (depends on 1)

The stent delivery system of claim 1, wherein the first brake assembly is axially moveable from a first position and a second position and the second brake assembly is axially moveable from a first position to a second position.

### Claim 11 (depends on 1)

The stent delivery system of claim 1, wherein the first brake assembly includes a spring, the spring having a compressed position and an expanded position.

### Claim 12 (depends on 11)

The stent delivery system of claim 11, wherein the spring has a predetermined angle relative to the first brake assembly when in the compressed position.

### Claim 13

A stent delivery system, comprising,
an inner elongate shaft including a proximal portion, a distal portion, at least one lumen extending at least partially therethrough, and a stent receiving portion on the distal portion of the elongate shaft.
an outer elongate shaft including a proximal portion, a distal portion, at least one lumen extending at least partially therethrough, the inner elongate shaft extending coaxially at least partially within the lumen of the outer elongate shaft, the outer sheath moveably positionable relative to the inner elongate shaft;
a proximal constraining arrangement engaged with a proximal end of the stent, the proximal constraining arrangement comprising a first proximal constraining member having a proximal portion, a second proximal portion, and a distal portion and a second proximal constraining member having a proximal portion and a distal portion, the distal portion of the first proximal constraining member engaged with a first proximal portion of the stent and the distal portion of the second proximal constraining member engaged with a second proximal portion of the stent;
a distal constraining arrangement engaged with a distal end of the stent, the distal constraining arrangement comprising a first distal constraining member having a proximal portion, a second proximal portion, and a distal portion and a second distal constraining member having a proximal portion and a distal portion, the distal portion of the first distal constraining member engaged with a first distal portion of the stent and the distal portion of the second proximal constraining member engaged with a second proximal portion of the stent;
a release wire disposed through the elongate shaft and releasably engaged with portion of the proximal constraining arrangement and the distal constraining arrangement member;
a handle assembly comprising a shuttle and a spring arrangement positioned therein, the shuttle operably connected to the proximal constraining arrangement, a first brake assembly disposed within the handle assembly, the proximal constraining arrangement being coupled to a portion of the first brake assembly;
a second brake assembly disposed within the handle assembly proximal to the first brake assembly, the distal constraining arrangement being coupled to a portion of the second brake assembly;
wherein the proximal constraining arrangement and the distal constraining arrangement applies an axial mechanical force to at least a portion of the stent in the first configuration.
