Tissue Traction Hanger Mechanism for Adjustable Endoscopic Tension
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Solution Overview
Problem
Current tissue traction systems in endoscopic procedures face challenges in maintaining and adjusting tension on target tissue, leading to poor visualization, increased procedure time, and risk of complications such as perforation or bleeding.
Innovation Solution
A tissue traction device with multiple traction-tissue-engaging segments and a hanger mechanism that allows for adjustable traction application by engaging different points of tissue, enabling precise control of force vectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a tissue traction element is used to lift target tissue away from the treatment site, then tissue separation and visualization are improved, but the system becomes unable to maintain or adjust tension applied to the target tissue, leading to poor visualization and increased procedure time
Solution Approach 1:
The tissue traction element incorporates a adjustable tensioning mechanism that allows dynamic adjustment of the traction force applied to the target tissue. The medical professional can modify the tension level during the procedure to maintain optimal tissue separation and visualization as the dissection progresses, preventing the tissue from collapsing back onto the cutting plane.
Solution Approach 2:
The traction system is divided into distinct functional components: the tissue engagement element that grasps the target tissue, the adjustable tensioning mechanism that controls force application, and the anchor portion that secures the device. This segmentation allows independent optimization of each component and enables precise control over tissue manipulation.
2Productivity
If continuous dissection deeper into tissue is performed, then complete tissue removal is achieved, but the cutting plane becomes harder to visualize as tissue remains above it
Solution Approach 1:
The adjustable tensioning mechanism allows the medical professional to dynamically modify the traction force during dissection. As the cutting plane deepens and tissue above becomes harder to visualize, the tension can be increased to lift the tissue higher, maintaining the cutting plane within the visualization field and enabling continuous dissection without losing sight of the target area.
3Illumination intensity
If traction is applied to maintain tissue separation, then visualization is improved, but the system cannot adjust tension, leading to interference with accessory tools and increased risk of complications
Solution Approach 1:
The adjustable tensioning mechanism enables real-time modification of traction force based on procedural needs. If accessory tools require access or if tissue tension becomes excessive creating safety risks, the medical professional can reduce the tension. Conversely, if better visualization is needed, tension can be increased, providing flexible control over the trade-off between visualization quality and procedural safety.
Data Source
AI summary
A tissue traction device having a target-tissue-engaging segment and more than one traction-tissue-engaging segment spaced apart from the target-tissue-engaging segment. The tissue traction device may have a peripheral section with at least one traction-tissue-engagement section therein, with at least one of the traction-tissue-engaging segments defined on such traction-tissue-engagement section. An additional traction-tissue-engagement segment may be defined within the peripheral section, optionally on an additional traction-tissue-engagement section, and/or within the at least one traction-tissue-engagement section. One or more traction-tissue-engagement segments within the peripheral section may be simultaneously and/or sequentially engaged with traction tissue to achieve varying force vectors of traction on the target tissue. A hanger may be provided on a tissue-engagement member or on the peripheral section of the tissue traction device to hold one or more of the traction-tissue-engaging segments extended from within the peripheral section of the tissue traction device to the traction tissue.