Multipiece Magnetic Anastomosis Structure for Precise Tissue Alignment

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Solution Overview

Problem

Existing magnetic compression devices for anastomosis are limited by imprecise placement, require invasive procedures, and are restricted to small structures, leading to complications such as tissue necrosis and inadequate anastomosis formation.

Innovation Solution

A multipiece vertebrae design with individual flex segments and a roller or rolling node limits degrees of freedom, allowing precise alignment and formation of larger, durable anastomoses using self-assembling magnetic arrays.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a single formed piece of alloy is used to create the support structure, then the device is simpler to manufacture, but the control over geometric shape and durability during deployment is insufficient

Engineering Contradiction:

Improveease of manufactureVSAvoidgeometric shape control

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The support structure is divided into multiple individual vertebrae segments that can be independently controlled and assembled. Each segment can be precisely manufactured and then connected through flex segments and rollers to form the complete magnetic array, allowing both ease of manufacture of individual components and precision of the final assembled geometry.

Inventive Principle:

Principle #1Segmentation

2Force

If magnets are delivered as two separate assemblies through bulky delivery devices, then the device can provide sufficient compression, but the procedure becomes more invasive and the anastomosis size is limited

Engineering Contradiction:

Improvecompression forceVSAvoidinvasiveness

Core Design Contradiction:

ForceVSObject-affected harmful factors

Solution Approach 1:

The magnetic array segments are nested within a delivery device in a compact configuration, allowing them to be delivered through a minimally invasive approach. Once deployed, the segments self-assemble into the complete magnetic compression structure, providing sufficient compression force while avoiding the need for bulky delivery devices and open surgical fields.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Object-affected harmful factors

If traditional delivery conduits are used, then the delivery device can be minimally invasive, but the formed anastomosis is small and suffers from short-term patency

Engineering Contradiction:

Improveminimally invasiveVSAvoidanastomosis patency duration

Core Design Contradiction:

Object-affected harmful factorsVSDuration of action of moving object

Solution Approach 1:

The magnetic array is segmented into multiple independently controllable units that can be assembled into larger configurations than would fit through traditional delivery conduits. This segmentation allows the delivery of larger magnetic structures through minimally invasive approaches, creating larger anastomoses with improved long-term patency while maintaining the minimally invasive benefit.

Inventive Principle:

Principle #1Segmentation

4Ease of operation

If magnets are placed without precise control, then the placement procedure is simpler, but the anastomosis formation location becomes inaccurate

Engineering Contradiction:

Improveplacement simplicityVSAvoidanastomosis placement accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The magnetic array incorporates sensors and control mechanisms that provide feedback on the position and orientation of each magnet segment during deployment. This feedback system allows for real-time adjustment and precise control of magnet placement accuracy while maintaining relative ease of operation through automated or semi-automated deployment sequences.

Inventive Principle:

Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution enables minimally invasive, precise, and durable anastomosis formation with larger anastomoses, reducing complications and improving surgical success rates.

Implementation Method 1

the magnets on the outward-facing sides of the magnetic compression anastomosis device

Methodology Applied

Scientific EffectMagnetic force: Magnetism

Data Source

PatentUS12616478B2Magnetic compression anastomosis devices with multipiece internal vertebrae support structures

Publication Date: 2026.05.05 GI WINDOWS INC

AI summary

A magnetic compression anastomosis device comprises a first multipiece internal vertebrae support structure including a first set of magnets attached to an outward-facing side of the first multipiece internal vertebrae support structure; and a second multipiece internal vertebrae support structure including a second set of magnets attached to an outward-facing side of the second multipiece internal vertebrae support structure, wherein the first and second multipiece internal vertebrae support structures are attached together in a sandwich configuration with an inward-facing side of the first multipiece internal vertebrae support structure facing an inward-facing side of the second multipiece internal vertebrae support structure and the magnets on the outward-facing sides of the magnetic compression anastomosis device.