Degradable Endoscope Suction Valve for Faster Waste Breakdown
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Solution Overview
Problem
Medical devices with disposable components contribute significantly to environmental waste due to their slow degradation, necessitating the development of components that break down more easily to reduce environmental burden.
Innovation Solution
The use of degradable materials such as pure Mg, Zn, Fe alloys, or polymers like polylactic acid and polyhydroxyalkanoate for the valve assembly components, including the valve body, cap, and spring member, which facilitate faster degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If steel or resilient materials are used for valve components, then strength and durability are improved, but degradation time increases significantly
Solution Approach 1:
The patent changes the material parameter from traditional steel or resilient materials to degradable materials such as magnesium alloys, zinc alloys, or polymers (including biodegradable polymers like polylactic acid and polyhydroxyalkanoate). This parameter change enables the valve components to maintain sufficient strength during use while allowing controlled degradation over time, resolving the contradiction between strength and degradation time.
Solution Approach 2:
The patent employs composite material strategies by combining degradable base materials with appropriate alloys or polymer compositions that balance mechanical properties with degradation characteristics. The use of magnesium alloys, zinc alloys, or biodegradable polymers creates materials that are stronger than pure degradable materials would be, yet still degrade at acceptable rates, thus resolving the strength-durability contradiction.
2Object-affected harmful factors
If degradable materials are used for valve components, then environmental impact is reduced through faster degradation, but material strength and durability are compromised
Solution Approach 1:
The patent selects specific degradable materials (magnesium alloys, zinc alloys, biodegradable polymers) and controls their degradation parameters through material composition and structural design. This allows the components to achieve sufficient strength for medical device applications while degrading at rates that reduce environmental waste burden, balancing strength requirements with environmental considerations.
Solution Approach 2:
The patent applies different material properties to different components or regions of the valve assembly based on functional requirements. Critical load-bearing components use degradable materials with higher strength properties, while less critical components can use materials with faster degradation rates. This local differentiation allows optimization of both strength and environmental impact.
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
Reduces environmental impact by ensuring the components degrade more quickly, thus minimizing waste and environmental burden.
Implementation Method 1
a spring member positioned between the valve cap and the valve body such that, when the valve cap is pushed downward relative to the valve body, the spring member applies upward force against the valve cap
Data Source
AI summary
Devices, systems, and methods for a valve assembly for a medical device. The valve has a cap, a shaft which moves within a valve body, and a spring member between the cap and the valve body to move the valve within the body. The valve shaft and/or spring member are made of a degradable material, such as a metal or a polymer. The degradable material has a higher degradation rate than conventional valve components to reduce the environmental impact of disposing of the valve.