Endoscopic Perforation Suturing via Dual-View Visualization
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Solution Overview
Problem
Current methods for suturing perforations in hollow organs via endoscopic or transanal approaches lack the ability to effectively check for and avoid puncturing adjacent tissues, leading to potential complications during minimally invasive procedures.
Innovation Solution
A method involving a flexible endoscope and suture unit where a needle with a slit is used to puncture the tissue, allowing an anchor with a suture thread to be deployed, and the thread is tightened to close the perforation, while using an observation device to ensure adjacent tissues are not punctured, utilizing a stopper mechanism to secure the thread and prevent slippage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If endoscopic or transanal suturing methods are used to minimize invasive procedures, then patient trauma and recovery time are reduced, but the ability to visualize and avoid puncturing adjacent tissues is compromised
Solution Approach 1:
The suturing system is divided into separate functional components: an endoscope for internal visualization, a transanal approach for external access, and a needle-suture assembly for the actual suturing operation. This segmentation allows each component to be optimized for its specific function while working together to achieve both minimal invasiveness and precise tissue handling.
Solution Approach 2:
The endoscope serves as an intermediary device that transmits visual information from the internal hollow organ to the operator, enabling precise identification and avoidance of adjacent tissues during the suturing process without requiring direct internal manipulation.
2Reliability
If a needle is thrust into tissue to deploy an anchor and suture thread, then the perforation can be closed, but there is a risk of puncturing adjacent tissues
Solution Approach 1:
Before thrusting the needle, the operator uses the endoscope to preliminarily identify and mark the perforation location and surrounding tissue boundaries. This preliminary visualization allows for precise needle placement that avoids adjacent tissues while ensuring reliable perforation closure.
Solution Approach 2:
The endoscope provides real-time visual feedback during the needle insertion and suture deployment process, allowing the operator to adjust the needle trajectory and depth immediately to prevent puncturing adjacent tissues while maintaining effective perforation closure.
Data Source
AI summary
A method for suturing a perforation comprises the steps of: observing an area around the perforation from an inside of a hollow organ by an observation device inserted from a natural opening of a living body; observing the area around the perforation from a body cavity side of the hollow organ by an observation device inserted from the natural opening of the living body; thrusting a needle of a suture unit inserted from the natural opening of the living body into a tissue around the perforation of the hollow organ to make a suture thread puncture the tissue via the needle; and closing the perforation by tightening up the suture thread puncturing the tissue.