Multi-Segment Tissue Traction for Adjustable Endoscopic Retraction
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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 inefficiencies in delivering and adjusting tension.
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 for variable force vectors and consistent traction application by engaging segments at different tissue locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a tissue traction device is used to lift target tissue during endoscopic procedures, then tissue separation and visualization are improved, but the device may fold or deform during delivery, making delivery challenging
Solution Approach 1:
The tissue traction device is nested within a delivery catheter that maintains it in an elongated, non-folding configuration during delivery. The device can be collapsed or folded within the catheter for insertion, then deployed in its functional elongated form to provide tissue traction and visualization.
2Illumination intensity
If traction is applied to target tissue to maintain separation, then visualization is improved, but the device may obstruct accessory tools or interfere with the procedure
Solution Approach 1:
The tissue traction device is divided into multiple segments including a first segment for engaging target tissue and a second segment for engaging traction tissue. This segmentation allows independent manipulation of each segment, enabling accessory tools to access the target tissue while the first segment maintains traction, reducing obstruction.
3Ease of operation
If the traction device engages multiple tissue segments to vary force vectors, then traction control and visualization are improved, but the device complexity increases
Solution Approach 1:
The tissue traction device incorporates multiple grasping segments that can each engage different tissue types (target tissue and traction tissue) to provide multi-directional force vectors. This multi-functional design allows a single device to perform both traction application and tissue engagement without requiring multiple separate instruments, balancing complexity with operational versatility.
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.