Endoscope Distal Chamber for Simultaneous Tissue Sampling
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Solution Overview
Problem
Current endoscopic procedures using long, flexible endoscopes, such as colonoscopes, are time-consuming when obtaining multiple tissue samples, as they require frequent insertion and removal of biopsy forceps instruments, increasing the risk of contamination and infection.
Innovation Solution
An endoscope design featuring a distal chamber with multiple lumens, including irrigation and aspiration lumens, configured to accommodate a medical instrument, allowing for simultaneous tissue sampling and fluid management within the chamber, reducing the need for frequent instrument removal and enhancing sample collection efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If frequent insertion and removal of biopsy forceps instruments is performed to obtain multiple tissue samples, then multiple tissue samples can be obtained, but the procedure becomes time-consuming and the risk of contamination and infection increases
Solution Approach 1:
The endoscope is divided into separate functional lumens: a working lumen for instrument passage and an aspiration lumen for sample retrieval. This segmentation allows simultaneous operation of multiple functions, enabling multiple tissue samples to be obtained during a single endoscope passage without repeated insertions and removals, thereby reducing procedure time while maintaining sample quantity
Solution Approach 2:
The biopsy forceps instrument is nested within the working lumen of the endoscope, and the tissue samples are subsequently nested within the aspiration lumen for collection. This nested configuration allows the instrument to remain in place while samples are retrieved through a separate pathway, eliminating the need for frequent instrument removal and reducing procedure time
2Quantity of substance
If frequent insertion and removal of biopsy forceps instruments is performed to obtain multiple tissue samples, then multiple tissue samples can be obtained, but the risk of contamination and infection increases
Solution Approach 1:
The separation of the working lumen and aspiration lumen creates independent pathways: one for instrument insertion and another for sample retrieval. This segmentation minimizes cross-contamination risks by preventing contact between the instrument exterior and the sampling process, thereby reducing infection risk while maintaining the ability to obtain multiple tissue samples
Solution Approach 2:
The aspiration lumen acts as an intermediary pathway for tissue sample retrieval, separating the sample collection process from the instrument insertion pathway. This intermediary mechanism allows samples to be retrieved without removing the instrument, reducing exposure to contaminants and lowering infection risk
3Productivity
If a distal chamber with multiple lumens is designed to accommodate medical instruments and enable simultaneous tissue sampling and fluid management, then sample collection efficiency is improved, but device complexity increases
Solution Approach 1:
The endoscope incorporates multiple lumens that serve different functions: the working lumen for instrument passage and the aspiration lumen for sample retrieval and fluid management. This multi-functional design enables simultaneous tissue sampling and fluid management operations, improving sample collection efficiency while the modular lumen structure keeps the added complexity manageable through standardized functional integration
Data Source
AI summary
Embodiments of the invention include an endoscope including a distal chamber and related methods of use, for example, with an endoscopic instrument.