Magnetic Tissue Shearing Assembly for Larger GI Openings
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Solution Overview
Problem
Current methods for creating lesions between adjacent body cavities using self-assembling magnet trains face increased complexity and difficulty as the size of the opening increases, requiring a solution that maintains a consistent implementation difficulty regardless of the lesion size and reduces trauma and complexity.
Innovation Solution
A device comprising a first and second magnetic member connected by a thread with a thread winding system to maintain tension, allowing for magnetic attraction and pressure necrosis, followed by tissue shearing to create openings between body cavities, which can be used for treating diverticulum and anastomosis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If self-assembling magnet trains are used to create larger openings, then the opening size increases, but the number of components and assembly difficulty increase proportionally
Solution Approach 1:
The patent merges multiple magnetic components into a single integrated magnet assembly that can be delivered as one unit through a needle. This single assembly contains multiple magnets arranged in a specific configuration that self-assemble upon deployment, eliminating the need to deliver and assemble multiple separate magnet trains while achieving the same or larger opening size.
Solution Approach 2:
The magnet assembly is nested within a delivery device (needle) that guides and positions it during insertion. The magnets are contained within a housing or structure that allows them to be delivered compactly and then deployed in the target tissue, enabling complex multi-magnet configurations to be delivered through simple single-lumen catheters.
2Area of stationary object
If self-assembling magnet trains are used to create larger openings, then the opening size increases, but the assembly difficulty increases proportionally
Solution Approach 1:
The magnets are pre-assembled into a complete functional unit before delivery, with all magnetic components, sutures, and structural elements prepared in advance. This preliminary assembly eliminates the need for complex intra-procedural assembly steps, allowing the entire magnet train to be deployed as a single integrated device through simple delivery maneuvers.
Solution Approach 2:
The magnet assembly is designed to self-deploy and self-position within the tissue upon delivery. The magnetic forces automatically align the components and secure them in the desired configuration without requiring manual manipulation or complex assembly steps by the operator, thereby simplifying the procedure while achieving larger openings.
3Area of stationary object
If more magnet components are used to increase opening size, then the lesion size increases, but the trauma and complexity increase
Solution Approach 1:
The patent concentrates the magnetic force and tissue compression into a localized region between the magnets, creating a focused lesion only where needed. The magnetic assembly is designed to compress tissue locally between opposing magnets while leaving surrounding tissue intact, thereby achieving effective lesion creation with minimal trauma to adjacent structures even when creating larger openings.
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 device effectively creates larger openings with reduced trauma and complexity by applying continuous pressure through the thread, facilitating tissue shearing and preventing infections by ensuring fluid and solid substances can pass through, such as in the GI tract.
Implementation Method 1
The first and second materials show magnetic attraction between one another
Implementation Method 2
The means for pulling the thread comprises a thread winding system configured to maintain tension in the thread between the first member and the second member
Data Source
Figure 1~2C
Figure 3A~4
Figure 5~6D
AI summary
Device (70) for shearing tissue in a human or animal body, comprising a first member (11) comprising a first material, a second member (72) comprising a second material and a thread (13) connected to the first member and to the second member. The first and second materials show magnetic attraction between one another. The device comprises means(74)for pulling the thread between the first and second members.