Endoscope Guide Pipe Curving Portion for Distal Surface Cleaning
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Solution Overview
Problem
Existing endoscope systems face challenges in effectively cleaning the distal surface of the insertion portion, which can lead to blockages and impaired visualization during medical procedures, particularly in narrow cavities like paranasal sinuses.
Innovation Solution
A treatment device with a guide pipe having a curving portion that changes the flow direction of a fluid, allowing the distal surface of the endoscope to be cleaned while maintaining the distal end of the sheath near the guide pipe, and a movement mechanism to adjust the endoscope's position relative to the guide pipe, ensuring effective fluid application and removal of debris.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distal end of the sheath is kept near the distal end of the guide pipe during cleaning, then the operator can maintain control and stability, but the cleaning effectiveness is reduced because the fluid cannot directly impact the distal surface of the insertion portion
Solution Approach 1:
The guide pipe includes a movement mechanism that allows dynamic adjustment of the relative position between the sheath and the guide pipe. This enables the system to switch between a stable configuration (sheath near guide pipe distal end) for operator control and a cleaning configuration (sheath moved away) for effective fluid impact on the distal surface of the insertion portion.
Solution Approach 2:
The curving portion of the guide pipe changes the spatial dimension of fluid flow by bending the flow direction at approximately 90 degrees. This allows the fluid to reach the distal surface of the insertion portion from a different spatial direction, enabling effective cleaning while maintaining the sheath in a controlled position.
2Productivity
If fluid is discharged to clean the distal surface of the insertion portion, then cleaning effectiveness is improved, but the fluid flow direction must be precisely controlled to avoid wasting fluid and ensuring direct impact on the distal surface
Solution Approach 1:
The curving portion of the guide pipe uses a bent surface with a specific radius of curvature to smoothly redirect the fluid flow. This curved geometry naturally guides the fluid along a controlled path, changing its direction by approximately 90 degrees while maintaining flow coherence and ensuring direct impact on the distal surface of the insertion portion without requiring complex control mechanisms.
3Device complexity
If the distal surface of the insertion portion is not effectively cleaned, then the device structure remains simple, but blockages occur and visualization is impaired during medical procedures
Solution Approach 1:
The guide pipe acts as an intermediary device that facilitates cleaning of the distal surface of the insertion portion. It provides a structured pathway for fluid discharge and includes a curving portion that positions the fluid flow to directly impact the distal surface, effectively removing viscous matter and preventing blockages while maintaining good visualization quality.
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
This solution enhances the cleaning of the endoscope's distal surface, preventing blockages and maintaining clear visualization, even when dealing with viscous matter in narrow anatomical spaces, thereby improving the efficacy of medical procedures.
Implementation Method 1
the curving portion having, in its inner circumferential surface, a bent surface which is bent relative to the second pipe and which bends the flow direction of the fluid to be discharged from the distal end of the sheath
Data Source
AI summary
A treatment device used together with an endoscope, has a guide pipe and a movement mechanism. The guide pipe has a first pipe having a curving portion and a second pipe continuous with a proximal side of the curving portion. The curving portion has, in its inner circumferential surface, a bent surface bent to the second pipe, and bending the flow direction of the fluid discharged from the distal end of the sheath in a state where the distal end of the sheath is located near the distal end of the second pipe. The movement mechanism protrudes a distal surface of the insertion portion from the distal end of the sheath and brings the distal surface closer to or into abutment with the bent surface in a state where the distal end of the sheath is disposed near the distal end of the second pipe.