Universal Irrigator Port for Phlegm Suction Tubes
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Solution Overview
Problem
Conventional irrigator ports are limited in usability as they can only accommodate injectors with a specific size, restricting the use of injectors with different mating structures and preventing size adjustments.
Innovation Solution
A tube coupling design for phlegm suction tubes with a hollow tube body and coaxially connected tube connector, featuring a joint portion with a step-shaped passage and a check valve, allowing connection of injectors with different mating structures by adjusting the diameter of the passage and joint portion to fit various nozzle sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the passage diameter is fixed to fit a specific injector size, then the connection reliability is improved, but the adaptability to different injector sizes deteriorates
Solution Approach 1:
The joint portion is segmented into two functional zones: an inner passage with a first diameter for receiving a first injector, and an outer annular region with a second diameter for receiving a second injector. This segmentation allows the single joint portion to accommodate multiple injector types simultaneously, resolving the contradiction between connection reliability for specific injectors and adaptability to different sizes.
Solution Approach 2:
The joint portion is designed with multi-functionality to serve as a universal connector. By incorporating both a first diameter passage and a second diameter annular region within the same joint portion, it can universally accept different injector types (e.g., syringes, vials, cartridges) while maintaining reliable connections for each specific injector type through dedicated fitting surfaces.
2Manufacturing precision
If the passage diameter is standardized for a specific injector, then the manufacturing precision is improved, but the ease of operation with different injector types deteriorates
Solution Approach 1:
The joint portion is divided into distinct functional zones with different diameters: an inner passage with a first diameter optimized for first injectors, and an outer annular region with a second diameter optimized for second injectors. Each zone maintains precise dimensional control for its intended injector type while the overall structure remains manufacturable as a single integrated component.
Solution Approach 2:
Different regions of the joint portion are given different local qualities in terms of diameter and receiving characteristics. The inner passage has a first diameter suitable for certain injector types, while the outer annular region has a second diameter for other injector types. This local differentiation allows precise fitting for multiple injector types without compromising manufacturing precision of individual zones.
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 the use of multiple injectors with different mating structures, increasing the availability and flexibility of chemical agent injection into the irrigator port without the need for size-specific injectors.
Implementation Method 1
The tube body is provided with a check valve which flexibly closes the passage for preventing phlegm from flowing back and allowing to inject chemical agents
Data Source
AI summary
A tube coupling of a phlegm suction tube, which is capable of connecting two injectors having different mating structures, includes a tube body and a tube connector. The tube body is hollow and has a coupling end and a check valve. The tube connector is coaxially connected to the coupling end of the tube body and has a joint portion. The joint portion has a passage communicating with the tube body. The check valve flexibly closes the passage from the tube body. A diameter of the passage fits a first injector with a first mating structure, and an outer diameter of the joint portion fits a second injector with a second mating structure.