Endoscopic Hood With Integrated Resection Wire for Single-Step Tissue Cutting
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Solution Overview
Problem
Current endoscopic mucosal resection (EMR) systems require multiple users to control the endoscope and resection snare, limiting the physician's tactile sense and requiring significant communication, as they necessitate multiple snare deployments for each tissue resection, complicating the procedure and reducing efficiency.
Innovation Solution
An endoscopic hood with a wire track and channel system that allows a physician to create and resect a pseudo-polyp in a single step, using a resection wire that can transition between open and closed loop configurations for precise tissue cutting, enabling simultaneous control of the endoscope and cauterization energy without additional assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple snare deployments are used for each tissue resection, then tissue resection can be performed, but the physician's tactile sense is limited and significant communication with the nurse is required
Solution Approach 1:
The patent combines the snare deployment mechanism and the resection wire control into a single integrated system. The resection wire is passed through the hood and can be controlled directly by the physician through the working channel, merging the functions of hood positioning and snare deployment into one controllable system. This eliminates the need for separate snare deployment by the nurse and restores tactile control to the physician.
Solution Approach 2:
The system allows the physician to perform both hood manipulation and resection wire control through a single interface. The resection wire is accessible through the working channel and can be manipulated directly by the physician without requiring separate control mechanisms or additional personnel. This self-service capability restores tactile feedback and simplifies the operational workflow.
2Productivity
If multiple users control the endoscope and resection snare, then the procedure can be performed, but the amount of communication required increases significantly
Solution Approach 1:
The patent merges the control functions of the endoscope and resection snare into a single operational interface. The resection wire is controlled through the same working channel used for the endoscope, allowing the physician to manipulate both functions simultaneously. This integration eliminates the need for continuous communication between the physician and nurse, reducing communication overhead while maintaining procedural efficiency.
3Productivity
If a snare is deployed around the inside of the EMR hood, then tissue can be resected immediately following pseudo-polyp formation, but minimal recovery is afforded to the snare requiring a new snare for each subsequent resection
Solution Approach 1:
The patent employs a disposable resection wire that is passed through the hood and used for a single resection procedure. After the wire is deployed and the resection is completed, the entire hood and wire assembly is removed and discarded. This approach eliminates the need to recover and reuse snares, allowing rapid deployment of a fresh wire for each subsequent resection without time-consuming recovery procedures. The disposable nature of the wire simplifies the process for multiple sequential resections.
Data Source
AI summary
The present disclosure provides systems and methods for cutting mucosal tissue. In particular, the present disclosure provides an endoscopic hood with an integrated wire for single-step tissue cutting. The endoscopic hood is particularly useful for performing repeated cutting, for example EMR resections, without the need for assistance by a nurse or medical technician.