Eyeball and Eyelid Protector with Curved Segmentation
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Solution Overview
Problem
Existing surgical methods for upper and lower eyelid procedures fail to properly fix and protect the eyelids during surgery, leading to inadequate exposure of the surgical site and insufficient protection of non-target areas.
Innovation Solution
A device comprising an eyeball cover and eyelid protection parts that extend to accommodate and secure either the upper or lower eyelid, with specific curvature ratios and thicknesses to ensure effective protection and easy insertion, allowing for simultaneous protection of eyelashes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an artificial implant is inserted between the eyelid and cornea to protect the cornea, then the cornea is protected, but the eyelid is not fixed and the surgical site is not properly exposed
Solution Approach 1:
The protective device is divided into multiple functional segments: an eyeball cover for cornea protection, an eyelid protection part for eyelid fixation, and an auxiliary eyelid protection part for additional support. This segmentation allows each component to perform its specific function independently, resolving the contradiction between cornea protection and surgical site exposure.
Solution Approach 2:
The eyelid protection part acts as an intermediary element between the eyeball cover and the eyelid. It includes an eyelid insertion portion that extends into the gap between the eyelid and eyeball, providing mechanical fixation while maintaining proper exposure of the surgical site. This intermediary structure enables both cornea protection and adequate surgical access.
2Reliability
If the eyelid protection part has a complex curved structure to accommodate the eyelid properly, then the eyelid fixation is improved, but the device complexity increases
Solution Approach 1:
The eyelid protection part features a curved structure with a specific radius of curvature that matches the anatomical contour of the eyelid. The inner surface has a radius of curvature between 1:0.4 to 1:0.6 compared to the eyelash cover portion, enabling natural accommodation of the eyelid tissue. This curvature design provides reliable fixation while maintaining a relatively simple and manufacturable structure.
Solution Approach 2:
The device utilizes specific dimensional parameters, particularly the radius of curvature ratio (1:0.4 to 1:0.6) between different portions, to optimize eyelid fixation. By carefully controlling these geometric parameters, the invention achieves reliable anatomical fit without requiring overly complex structural designs, thus balancing reliability with manufacturing simplicity.
3Reliability
If the eyelid insertion portion has a small radius of curvature for better fit, then the eyelid accommodation is improved, but the insertion difficulty increases
Solution Approach 1:
The eyelid protection part is segmented into distinct functional portions: an eyelid insertion portion with a smaller radius of curvature for anatomical fit, and an eyelash cover portion with a larger radius of curvature for easier insertion and manipulation. This segmentation allows each portion to be optimized for its specific function while simplifying the overall insertion process.
Solution Approach 2:
The device transitions from a single uniform curvature design to a multi-dimensional curvature profile, where the radius of curvature varies along the length of the protection part. The eyelid insertion portion has a radius of curvature in a 1:0.4 to 1:0.6 ratio compared to the eyelash cover portion, creating a tapered geometric progression that facilitates easier insertion while maintaining reliable eyelid accommodation at the target site.
Data Source
AI summary
The inventive concept relates to an eyeball and eyelid protector including an eyeball cover that covers an eyeball, and an eyelid protection part that is bent and extends from one side of the eyeball cover to protect any one of an upper eyelid and a lower eyelid.