Endoscopic Suture Anchor Traction for Lesion Resection
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Solution Overview
Problem
Current endoscopic procedures for tissue resection in the gastrointestinal tract face challenges such as limited visualization, high risk of tissue perforation, and incomplete removal of diseased tissue due to close working conditions and limited independent movement of tools.
Innovation Solution
A method utilizing a flexible endoscope with a soft-tissue suture anchor deployment system and an electrosurgical instrument to apply traction and tension to lesions, allowing for precise dissection and removal by anchoring and cutting connective fibers between mucosal and muscularis layers, while maintaining visualization and reducing the risk of bleeding or perforation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cap is attached to the end of the endoscope to aid in lifting the lesion during dissection, then the lesion can be lifted and dissection can be performed, but visualization is limited and the risk of tissue perforation and bleeding increases
Solution Approach 1:
The patent introduces a suture anchor deployment system as an intermediary tool between the endoscope and the lesion. Instead of using a cap that directly contacts and manipulates the lesion close to the endoscope tip, the system deploys suture anchors into the submucosal tissue to create a lifting mechanism at a distance from the endoscope tip, thereby maintaining visualization while reducing perforation risk
Solution Approach 2:
The lifting function is segmented from the endoscope itself and implemented through a separate deployable system. The suture anchor deployment system can be advanced through the endoscope working channel, deployed independently at the target site, and used to lift the lesion without requiring the endoscope cap to be in direct contact with the tissue
2Productivity
If dissection occurs close to the end of the endoscope, then the lesion can be dissected, but the cap and dissection tool cannot effectively move independently and visualization is limited
Solution Approach 1:
The patent transitions from two-dimensional manipulation at the endoscope tip to three-dimensional manipulation by deploying tools through the working channel. The suture anchor deployment system and dissection tools can be advanced through the endoscope, positioned independently in the tissue, and manipulated in multiple directions without being constrained by the endoscope cap position
Data Source
AI summary
Endoscopic tissue traction includes advancing an anchor deployment system through a working channel of an endoscope positioned within a gastrointestinal tract and using the system to apply a first anchor having a length of suture fixed thereto into a distal portion of a tissue in a first wall in the body cavity. Then, the anchor deployment system is used to apply a like second anchor into a proximal portion of the tissue in the first wall, with the length of suture coupled to and displaceable relative to the second anchor. Next, the anchor deployment system is used to apply a like third anchor into a opposite second wall, with the length of suture coupled to and displaceable relative to the second anchor. The suture can then be tensioned relative to the second and third anchors to apply traction between the second wall and the relatively proximal portion of the tissue.