Hydrophilic Polymer Lens Surface Modification via Compound Radical Reaction
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Solution Overview
Problem
Existing methods for hydrophilizing contact lenses, such as plasma treatment, are complex, costly, and difficult to control, and there is a need for a simpler and more cost-effective method to produce lenses with high oxygen permeability and moisture retention.
Innovation Solution
A method for producing a lens to be fitted to an eye by hydrophilizing a polymer lens surface using a compound radical containing Group 15, Group 16, and Group 17 elements, which introduces hydrophilic groups into the lens surface, allowing for simpler and more cost-effective production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If plasma treatment is used to hydrophilize the lens surface, then the lens becomes more hydrophilic, but the operation becomes complicated and the treatment cost increases
Solution Approach 1:
The invention changes the chemical parameters of the lens surface by introducing specific functional groups (carboxyl, hydroxyl, carbonyl, or amine groups) through reaction with compound radicals. This chemical modification achieves hydrophilization without requiring complex plasma treatment equipment or procedures, thereby improving ease of operation while avoiding increased device complexity
Solution Approach 2:
The invention uses a simple chemical treatment approach that can be performed with basic chemical reagents rather than expensive plasma treatment equipment. The treatment process is straightforward and can be completed in a simple apparatus, reducing both operational complexity and treatment cost while achieving the desired hydrophilic surface properties
2Ease of operation
If plasma treatment is used to hydrophilize the lens surface, then the lens becomes more hydrophilic, but the treatment cost increases
Solution Approach 1:
The invention achieves hydrophilization through chemical parameter changes by introducing hydrophilic functional groups via reaction with compound radicals. This chemical approach uses simple, inexpensive reagents and can be performed in basic laboratory or manufacturing equipment, significantly reducing treatment cost compared to plasma treatment while maintaining effective hydrophilic surface properties
Solution Approach 2:
The invention replaces expensive plasma treatment equipment and procedures with a cost-effective chemical treatment method using readily available chemical reagents. The simple chemical reaction process can be performed in basic apparatus, making the treatment much more affordable while achieving the same hydrophilic surface modification effect
3Ease of operation
If plasma treatment is used to hydrophilize the lens surface, then the lens becomes more hydrophilic, but the reaction control becomes difficult
Solution Approach 1:
The invention achieves precise control over the hydrophilization reaction by carefully controlling the chemical reaction parameters such as reagent concentration, reaction time, temperature, and pH. These chemical parameters are easier to measure and control in a standard laboratory or manufacturing setting compared to plasma treatment parameters, providing better reaction control while achieving the desired hydrophilic surface properties
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
The method enables the production of lenses with improved hydrophilicity and oxygen permeability, reducing the risk of eye drying and simplifying the manufacturing process while maintaining stability over time.
Implementation Method 1
hydrophilizing a surface of a polymer lens by reacting with a compound radical
Implementation Method 2
reacting with a compound radical, wherein the compound radical is a radical containing one element selected from the group consisting of Group 15 elements and Group 16 elements, and a Group 17 element
Implementation Method 3
a surface of the polymer is an oxidized surface
Implementation Method 4
hydrophilizing a surface of a polymer lens by reacting with a compound radical
Data Source
AI summary
The present invention provides a new method for producing a lens to be fitted to an eye in a simple manner at a low cost. In order to achieve the aforementioned object, the present invention provides a method for producing a lens to be fitted to an eye, including the step of: hydrophilizing a surface of a polymer lens by reacting with a compound radical, wherein the compound radical is a radical containing one element selected from the group consisting of Group 15 elements and Group 16 elements, and a Group 17 element.