Multi-Lumen Endoscope for Simultaneous Tissue Acquisition and Removal
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Solution Overview
Problem
Current endoscope designs lack efficient mechanisms for simultaneous tissue acquisition and removal, requiring multiple insertions and increasing procedure time, expense, and patient trauma when multiple tissue samples are needed.
Innovation Solution
An endoscope with multiple lumens, one for tissue acquisition and another for removal, equipped with a biopsy forceps and suction lumen, allowing for simultaneous acquisition and removal of tissue samples using fluid flow or suction, with expandable and collapsible distal assemblies for efficient sample transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single lumen is used for both tissue acquisition and removal, then device complexity is reduced, but procedure time increases due to repeated insertions and removals
Solution Approach 1:
The endoscope is divided into multiple independent lumens: a first lumen for tissue acquisition and a second lumen for tissue removal. This segmentation allows each lumen to be optimized for its specific function and enables simultaneous operation of acquisition and removal devices without interfering with each other, thereby reducing procedure time while maintaining manageable device complexity.
Solution Approach 2:
The patent transitions from a single-lumen one-dimensional design to a multi-lumen three-dimensional architecture. By adding spatial dimensionality with separate lumens positioned at different locations within the endoscope shaft, the system achieves independent access paths for acquisition and removal operations, eliminating the need for repeated insertions and removals.
2Adaptability or versatility
If multiple tissue samples are acquired using repeated insertions, then tissue acquisition capability is maintained, but patient trauma increases
Solution Approach 1:
The endoscope enables continuous tissue acquisition and removal operations without removing the device from the patient's body. The first lumen allows repeated passage of acquisition devices while the second lumen simultaneously handles removal, maintaining continuous operational capability and minimizing the number of discrete insertion-trauma cycles required.
Solution Approach 2:
The endoscope is designed as a multi-functional platform that can accommodate various tissue acquisition devices (biopsy forceps, needles, snares) and removal devices (suction mechanisms, retrieval forceps) through its multiple lumens. This universality allows a single endoscope to perform multiple biopsy and removal operations without requiring separate specialized instruments for each procedure.
3Ease of operation
If a biopsy forceps is used to store tissue samples, then tissue acquisition is effective, but tissue removal efficiency decreases without a dedicated removal mechanism
Solution Approach 1:
The endoscope separates tissue acquisition and removal functions into distinct lumens. The first lumen accommodates the biopsy forceps for tissue acquisition, while the second lumen houses dedicated removal mechanisms such as suction devices or retrieval forceps. This segmentation allows each mechanism to be optimized for its specific function, improving overall productivity while maintaining ease of operation.
Solution Approach 2:
The patent introduces intermediary mechanisms to facilitate smooth transition of tissue samples between acquisition and removal phases. Suction mechanisms act as intermediaries to extract tissue from the biopsy forceps, while mechanical retrieval devices serve as intermediaries to transport tissue through the endoscope shaft. These intermediaries bridge the gap between acquisition and removal operations, enhancing efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid and efficient acquisition and removal of multiple tissue samples without repeated insertion or removal of devices, reducing procedure time, cost, and patient trauma.
Implementation Method 1
the tissue removal device may define a suction lumen configured to suction the tissue sample from the biopsy forceps
Implementation Method 2
the fluid lumen may be configured to accommodate fluid flow to dislodge the tissue sample from the tissue acquisition device
Data Source
AI summary
Embodiments of the invention include an endoscope including multiple lumens for tissue acquisition and removal and related methods of use.