Endoscopic Stent Delivery System with Actuable Struts
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Solution Overview
Problem
Current medical devices lack effective solutions for sealing and connecting anatomical spaces in the gastrointestinal tract, particularly due to the hostile environment and challenges in creating secure anastomoses without approximating defect edges, which can lead to lumen stricture and other complications.
Innovation Solution
A delivery system comprising a catheter with a tip portion featuring cutting blades and actuable struts that create enlarged openings in tissue walls, allowing for the deployment of an implantable medical device to connect anatomical spaces, such as the GI tract, facilitating secure connections and tissue healing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If clips or sutures are used to seal the resulting perforation in the colon wall, then the defect can be sealed, but the defect edges must be approximated which results in lumen stricture
Solution Approach 1:
The delivery system is divided into separate functional modules: a delivery catheter for creating the opening, a separate sealing device (stent-graft or endoluminal occluder) for sealing the defect, and support structures. This segmentation allows the opening creation and sealing functions to be performed independently without requiring approximation of defect edges, thereby avoiding lumen stricture while achieving reliable sealing.
2Productivity
If large resections of the colon are performed endoscopically, then lesion removal is achieved, but effective tools and devices to seal the resulting perforation are not available
Solution Approach 1:
The delivery system is designed as a multi-functional platform that can perform multiple functions: creating openings in tissue walls, delivering sealing devices (stent-grafts or endoluminal occluders), and providing structural support. This universal system can handle various lesion sizes and locations, making large resections feasible endoscopically with reliable sealing capability.
3Reliability
If suturing is used to create anastomoses, then cross-connection between tubular tissue structures is achieved, but the procedure becomes complex and time-consuming
Solution Approach 1:
The invention replaces the complex mechanical suturing process with a simplified delivery system that uses pre-formed sealing devices (stent-grafts or endoluminal occluders) that can be deployed endoscopically. The system uses radial expansion forces and anchoring mechanisms rather than sequential suturing, dramatically reducing procedure complexity while maintaining anastomosis strength and reliability.
Data Source
AI summary
Aspects of the present disclosure are directed toward apparatuses, systems, and methods for stent access and device delivery. In certain instances, the apparatuses, systems, and methods may include a plurality of struts arranged about the one or more cutting blades on a tip portion.