Anti-Migration Anchor Delivery for Stable Pylorus Implant Fixation
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Solution Overview
Problem
Existing bariatric surgical procedures face challenges in safely anchoring gastrointestinal implants within the dynamic environment of the gastrointestinal tract due to peristaltic motion, risking tissue necrosis and bacterial translocation, which can lead to serious health complications.
Innovation Solution
A delivery system for an anti-migration anchor that includes a locator system with arms transitioning from a collapsed to an extended configuration, facilitated by a catheter and handle mechanism, to secure gastrointestinal devices using a tether system that penetrates the pylorus without penetrating the abdominal cavity, minimizing infection risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If active fixation means such as barbs penetrating the wall of the gastrointestinal tract are used to secure implants, then the implant anchoring strength is improved, but the risk of tissue necrosis and bacterial translocation increases
Solution Approach 1:
The patent introduces an intermediary fixation mechanism that avoids direct tissue penetration. The anchor system uses a delivery catheter with expandable arms that engage with the gastrointestinal tract wall through a controlled puncture, allowing fixation without deep tissue penetration. This intermediary approach maintains anchoring strength while minimizing the risk of tissue necrosis and bacterial translocation by limiting the creation of pathways into the abdominal cavity.
2Stability of the object's composition
If penetrating fixation methods are used to anchor implants in the dynamic gastrointestinal environment, then the implant stability is improved, but the risk of establishing pathways for bacterial translocation increases
Solution Approach 1:
The patent applies local quality by creating a controlled, localized puncture in the gastrointestinal tract wall rather than deep penetration. The anchor system uses a puncture needle that creates a small opening through which the anchor arms can be deployed. This localized approach provides sufficient stability to counteract peristaltic motion while minimizing the creation of pathways for bacterial translocation by limiting the size and depth of tissue disruption.
3Ease of manufacture
If minimally invasive procedures with gastrointestinal implants are used to mimic bariatric surgery effects, then the surgical invasiveness is reduced, but the difficulty in safely anchoring implants increases due to peristaltic motion
Solution Approach 1:
The patent incorporates dynamics by designing an anchor system that can adapt to the dynamic peristaltic motion of the gastrointestinal tract. The delivery system includes a catheter with expandable arms that can be positioned and secured while accommodating the moving tissue. The anchor mechanism uses a puncture needle and expandable arm configuration that maintains reliability despite the intermittent and complex peristaltic motion, balancing minimally invasive approach with secure anchoring.
Data Source
AI summary
A system for delivering an anti-migration anchor to an implantable device includes a locator system having a head portion adapted to mate with the neck portion of the device, a locator capsule coupled to the head portion, and a plurality of arms coupled to the head portion and the locator capsule, the arms having a collapsed and an extended configuration. The system includes a catheter having a distal portion coupled to and extending from the head portion. The system includes a handle coupled to a portion of the catheter, the handle having a mechanism to effect relative motion between an inner and an outer member of the catheter to cause the arms to transition from the collapsed to the extended configuration. The system includes a plurality of elongate elements having a distal end coupled to the arm and configured to facilitate the delivery of an anti-migration anchor to the arm.