Multi-Segment Tissue Traction With Holder-Guided Endoscopic Delivery
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Solution Overview
Problem
Current tissue traction devices and systems face challenges in maintaining consistent traction on target tissue during endoscopic procedures, leading to poor visualization, increased procedure time, and risk of complications such as perforation or bleeding, due to deformation and inefficient delivery mechanisms.
Innovation Solution
A tissue traction device with multiple grasping segments and a holder system that maintains the device in an elongated configuration for delivery, allowing variable force vectors and consistent traction application by engaging segments at different tissue sites.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a tissue traction device is used to lift target tissue during endoscopic procedures, then visualization of the cutting plane is improved, but the device may fold or deform upon itself during delivery, making delivery challenging
Solution Approach 1:
The tissue traction device is configured to be nested within itself during delivery, with the device folding into a compact configuration that fits within the endoscope working channel. The device includes features such as nested loops and segments that allow it to be stored in a space-efficient manner while maintaining its functional structure for tissue engagement and traction application.
2Illumination intensity
If traction is applied to target tissue to maintain it above the cutting plane, then visualization is improved, but traction systems may be unable to maintain or adjust tension, obstructing the medical professional's view and interfering with accessory tools
Solution Approach 1:
The tissue traction device incorporates dynamic elements including adjustable tension mechanisms and reconfigurable segments that allow the medical professional to modify the traction force and direction during the procedure. The device can transition between different configurations to maintain optimal tissue elevation while accommodating various procedural needs and preventing obstruction of the visual field or interference with accessory tools.
3Adaptability or versatility
If multiple grasping segments are used to engage tissue at different locations, then variable force vectors can be applied to improve traction control, but the device complexity increases
Solution Approach 1:
The tissue traction device is divided into multiple functional segments including target tissue engagement segments, traction tissue engagement segments, and connecting elements. Each segment is designed with specific grasping features that can independently engage tissue at different locations, allowing for variable force vector application while maintaining a modular structure that manages overall device complexity through standardized connection interfaces.
Data Source
AI summary
A tissue traction device having more than one grasping segment by which the tissue traction device may be engaged with tissue directly, or indirectly, such as with the use of a tissue-engagement member. The tissue traction device may have a peripheral section defining grasping segments, as well as interior grasping segments defined within the perimeter of the peripheral section. Traction may be applied to a target tissue by engaging a target-tissue-engaging segment with target tissue, and engaging a traction-tissue-engaging segment with traction tissue spaced apart from the target tissue. Engagement of additional target-tissue-engaging segments with traction tissue (optionally at different locations) allows the force vector of the traction to be adjusted. A delivery system may include tissue traction device holder to maintain a desired configuration of the tissue traction device during delivery thereof to a target tissue area.