Dual-Ring Endoscopic Resection System for GI Tissue
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Solution Overview
Problem
Conventional endoscopic tools face challenges in accurately cutting harmful growths like invasive cancers within tubular tissues due to limited visibility and maneuverability, often resulting in tissue perforation and compromising the integrity of the gastrointestinal tract.
Innovation Solution
A system comprising a flexible endoscope, a grasping element, and two rings - a first ring for anchoring and a second ring with cutting mechanisms - that can be deployed through the endoscope to cut tissue with precision, forming a fluidic seal and allowing for full-thickness resection without perforating the tubular tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional endoscopic tools are used to cut tissue within the lumen, then the procedure can be performed endoscopically, but accurate cutting is difficult due to lack of visibility and maneuverability
Solution Approach 1:
The system divides the cutting function into two separate rings: a first ring for anchoring to the tissue wall and a second ring with cutting mechanisms. This segmentation allows the anchoring function to be stabilized while the cutting ring can be maneuvered independently to achieve precise cuts without compromising overall system stability.
Solution Approach 2:
The first ring acts as an intermediary anchor point on the tissue wall, providing a stable reference point that enables the second ring to perform precise cutting operations. The mechanical interlocking between the two rings allows the cutting mechanisms to be positioned accurately relative to the anchored first ring.
2Reliability
If full-thickness resection is performed to remove invasive cancers, then complete removal of the growth is achieved, but the risk of tissue perforation increases
Solution Approach 1:
The first ring is anchored to the tissue wall before the cutting operation begins. This preliminary anchoring establishes a controlled boundary and reference point that guides the subsequent full-thickness resection, ensuring the cut remains within safe margins and prevents unintended perforation of adjacent tissues.
Solution Approach 2:
The system replaces traditional mechanical cutting tools with a controlled ring-based mechanism where the second ring's cutting mechanisms operate in conjunction with the anchored first ring. This mechanical system provides controlled full-thickness resection with built-in safety margins that prevent perforation.
3Adaptability or versatility
If the cutting mechanism is advanced through the lumen to reach the target tissue, then the procedure remains minimally invasive, but the integrity of the tubular tissue may be compromised
Solution Approach 1:
The second ring with cutting mechanisms is nested within or operably coupled to the first anchored ring. This nested configuration allows the cutting tools to be advanced through the lumen in a controlled manner while the outer first ring remains anchored to maintain tissue integrity and prevent accidental perforation.
Data Source
AI summary
Systems and methods for treating tissue may include one or more delivery devices, a grasping element, a first ring for anchoring to a wall of a gastrointestinal tract, and a second ring operably couplable to a radially inward surface of the first ring. Other embodiments include methods of treating tissues, including tubular tracts of tissue, comprising coupling a first ring to first tissue of a wall of a tissue tract, relocating a target tissue proximally to a position proximal to the first ring, coupling a second ring to the first ring, and cutting tissue proximal to the interface of the first and second rings.