Endoscopic Tissue Resection Device with Balloon Anchoring
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Solution Overview
Problem
Endoscopic full thickness resection procedures pose challenges due to anatomical difficulties and risks of post-operative leakage, especially when removing tissue adjacent to critical internal organs and sensitive structures.
Innovation Solution
A device with an anchoring mechanism using expandable balloons and a tissue capture device, along with a tissue resecting and closure mechanism, is designed to securely engage and resect tissue in a body lumen, allowing for partial or full circumferential resection while minimizing damage to surrounding tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If full thickness resection is performed to ensure complete removal of diseased tissue, then the completeness of tissue removal is improved, but the risk of post-operative leakage and damage to adjacent structures increases
Solution Approach 1:
The device performs preliminary actions by first capturing and securing the tissue between the distal cap and body before resection occurs. The anchoring mechanism with expandable balloons and tissue capture device prepares the tissue in advance, creating a secure configuration that prevents leakage during and after the resection process
Solution Approach 2:
The device provides beforehand cushioning by creating a protected configuration where tissue is secured between the distal cap and body. This pre-secured state acts as a cushion or protective measure that prevents harmful leakage effects from occurring during the resection procedure
2Reliability
If full thickness resection is performed to ensure complete removal of diseased tissue, then the completeness of tissue removal is improved, but the difficulty of the procedure increases due to anatomical challenges
Solution Approach 1:
The device integrates multiple functions into a single system: the body and distal cap serve as both anchoring structures and tissue securing mechanisms, the expandable balloons provide both positioning and stabilization, and the integrated resection mechanism handles complete tissue removal. This multi-functionality reduces procedural complexity despite achieving complete resection
Solution Approach 2:
The device employs a nested structure where the inner shaft with distal cap is positioned within the outer body structure. The tissue capture device and resection mechanism are nested within this framework, allowing complex functions to be delivered through a coordinated, layered system that simplifies operation
3Reliability
If tissue is securely anchored and captured during resection, then the safety of the procedure is improved, but the device complexity increases
Solution Approach 1:
The device merges the anchoring mechanism and tissue capture function into a single integrated system. The expandable balloons on both the body and distal cap work together as a unified anchoring system, and the tissue capture device combines securing and positioning functions, reducing overall device complexity while maintaining safety
Solution Approach 2:
The device uses dynamic expandable balloons that can be inflated or deflated as needed during the procedure. This dynamic capability allows the anchoring mechanism to adapt to different tissue conditions and procedural stages, providing safety without requiring complex fixed structures
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 enables precise and safe full thickness resection by securely anchoring and capturing tissue, reducing the risk of leakage and damage to adjacent structures, thereby improving the efficacy of endoscopic procedures.
Implementation Method 1
The anchoring mechanism may include a first balloon disposed on the distal cap and a second balloon disposed on the body. The first and second balloons may be expandable to engage the body lumen
Data Source
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AI summary
Exemplary embodiments of the present disclosure relate to devices, systems, and methods for tissue resection in a body lumen of a patient, and may include a body extending along an axis and a distal cap positioned distally of the body and coupled to a shaft extending along the axis. The body and the distal cap may be movable relative to each other. An anchoring mechanism may be capable of engaging the body and the distal cap proximate a selected tissue for resection in the body lumen. A tissue capture device may be deployable from the tissue resection device such that a selected tissue for resection is securable by the tissue capture device. The tissue resection device may further include a tissue resecting device for resecting the selected tissue for resection.