# US 12,599,469 B2 · Systems and methods for anchoring and restraining gastrointestinal prostheses

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- Number: US 12,599,469 B2
- Document ID: US12599469B2
- Status: Granted
- Kind: B2
- Application number: 17/727,270
- Filed: 2022-04-22
- Published: 2023-03-09
- Granted: 2026-04-14
- Earliest claimed: 2020-03-09
- Assignees: MetaModix, Inc.
- Applicants: Metamodix, Inc.
- Inventors: Kedar Belhe; Werner Schwarz; Todd Stangenes; Parker Hagen
- Web page: https://patentgrep.com/patent/US12599469B2

## 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 5/0079: {Pyloric or esophageal obstructions}
- A61F 5/0089: {Instruments for placement or removal}
- A61B 17/0487: {Suture clamps, clips or locks, e.g. for replacing suture knots; Instruments for applying or removing suture clamps, clips or locks (suture anchors A61B17/0401; wound clamps or clips A61B17/08; ligaturing clamps or clips A61B17/122)}
- A61B 2017/0409: {Instruments for applying suture anchors}
- A61B 2017/0419: {H-fasteners}
- A61B 2017/0464: {for soft tissue}
- A61F 2002/045: {Stomach, intestines}
- 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)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

Systems and methods for anchoring and restraining gastrointestinal prostheses are disclosed. In various examples, the systems and methods include securing a gastrointestinal device within a patient's anatomy by extending an anti-migration anchor through a plurality of portions of the gastrointestinal device to couple together the plurality of portions of the gastrointestinal device. In some examples, the anti-migration anchor extends through tissue situated between the plurality of portions of the gastrointestinal device.

## Claims

### Claim 1

An anti-migration anchor delivery system comprising:
a first catheter configured to facilitate the delivery of an anti-migration anchor through anatomical tissue, the anti-migration anchor being deliverable through a lumen of the catheter along a longitudinal axis;
a second catheter extending along the first catheter;
a hood coupled at a distal end of the first catheter, the hood including a housing that is coupled with the second catheter, the hood further including a distal end portion that is configured to support a portion of a gastrointestinal implant during delivery of the anti-migration anchor,
a third catheter that is shape set to adopt a curvature when unconstrained, the third catheter being slidably disposed within a lumen of the second catheter such that the second catheter operates to constrain the third catheter to extend along the longitudinal axis of the second catheter when disposed within the lumen of the second catheter, and such that the third catheter can be advanced from a distal end of the second catheter to adopt the curvature; and
a tissue engagement element slidably disposed within the third catheter, the tissue engagement element being configured to capture the anatomical tissue and being advanceable from a distal end of the third catheter when the third catheter adopts the curvature,
wherein the tissue engagement element is operable to capture tissue while the gastrointestinal implant is supported by the distal end portion of the hood such that the anti-migration anchor can be delivered through the tissue and the gastrointestinal implant while the tissue is captured by the anti-migration anchor.