Endoscopic Strip Delivery with Rotating Clips for Precise GI Placement
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Solution Overview
Problem
Delivering thin planar strips of mucoadhesive material, such as chitosan, to a target site in the gastrointestinal tract using an endoscope is challenging due to buckling and accurate placement issues, which current endoscopic procedures often require invasive maneuvers like surgery or electro-cautery.
Innovation Solution
A device with a body and a clipping mechanism featuring rotatable clipping members that transition between open and closed states, allowing the adhesive material to be extended and severed to the target site through a working channel, ensuring precise application without buckling or twisting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thin planar strips of mucoadhesive material are delivered through the endoscope, then the material can be applied to stop bleeding, but the material is prone to buckling and catching within the endoscope shaft geometry
Solution Approach 1:
The adhesive material is delivered in segmented portions that are sequentially deployed at the target site. The device allows the operator to extend the material distally and then sever it, creating discrete segments that reduce buckling and catching issues while maintaining delivery reliability through the endoscope shaft.
Solution Approach 2:
The clipping mechanism features rotatable clipping members that can transition between closed and open states. This dynamic mechanism allows the material to be extended past the clipping members when in the open state, then secured when closed, enabling controlled deployment without buckling.
2Reliability
If thin planar strips of mucoadhesive material are delivered through the endoscope, then the material can be applied to stop bleeding, but it is difficult to accurately place the material on the bleed site
Solution Approach 1:
The device allows the operator to first position the distal end of the endoscope at the target site, then extend the adhesive material distally past the clipping members before securing it. This preliminary extension and positioning action enables accurate placement on the bleed site while maintaining ease of operation through the endoscopic system.
Solution Approach 2:
The patent replaces complex mechanical delivery mechanisms with a simpler system using rotatable clipping members and a working channel. This substitution maintains placement accuracy while improving ease of operation by reducing mechanical complexity in the endoscopic shaft.
3Reliability
If current endoscopic procedures use invasive maneuvers such as surgery, electro-cautery, clamps, lasers, or injections, then bleeding can be stopped effectively, but the procedures are more invasive and complex
Solution Approach 1:
The patent extracts the adhesive material delivery function from complex invasive procedures and integrates it directly into the endoscope system. By incorporating a working channel and clipping mechanism within the endoscope, the system eliminates the need for separate surgical instruments and invasive maneuvers, reducing overall procedure complexity while maintaining effective bleeding control.
Solution Approach 2:
The endoscope system is enhanced with multi-functionality by integrating the adhesive material delivery capability directly into the existing endoscope structure. The working channel and clipping mechanism allow the endoscope to perform both visualization and therapeutic functions, reducing the need for multiple separate procedures and instruments.
Data Source
AI summary
A device includes a body and a clipping mechanism including first and second clipping members. At least the first member is rotatably coupled to a distal end of the body so that the mechanism transitions between Closed State, in which distal ends of the members are in abutting contact, and Open State, in which the first member is rotated away from the second member to allow an adhesive material to be extended distally past the distal ends. A working channel of the device is formed in the body and components of the mechanism. The channel extends longitudinally through the device so that the material passes into a proximal end of the channel, through the channel, and distally past the distal ends when the mechanism is in Open State, whereupon the mechanism transitions into Closed State and a portion of the material severed and applied to target.