Corneal Bracket with Convex Spherical Surface and Blocking Portion
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Solution Overview
Problem
Existing corneal preservation methods fail to effectively maintain the shape and prevent damage of corneas during storage and transportation, as they lack proper positioning and rehydration facilities, leading to contamination and deformation.
Innovation Solution
A corneal preservation and rehydration device with a detachable box body and lid, featuring a convex spherical surface bracket with a blocking portion to securely hold the cornea and allow for rehydration within the device, reducing the risk of deformation and contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a cornea is placed directly in a box body for storage, then the packaging structure is simple, but the cornea is easy to slide off, overturn, get folds or deformation, or even be damaged during movement and transportation
Solution Approach 1:
The patent applies a convex spherical surface on the corneal bracket that matches the natural curvature of the cornea. This spherical design allows the cornea to conform to the curved surface, providing stable positioning and preventing sliding, overturning, or deformation during transport while maintaining structural simplicity.
Solution Approach 2:
The patent introduces a blocking portion at a specific location on the corneal bracket to provide localized constraint. This blocking portion prevents the cornea from sliding off the convex spherical surface while maintaining the overall simplicity of the packaging structure, addressing the stability issue without adding complex mechanisms.
2Reliability
If a packaging box with desiccant is used to store a cornea, then the cornea can be dried and preserved, but movement and sliding off of a cornea will cause the cornea to contact with the desiccant, and thus the cornea will be contaminated
Solution Approach 1:
The convex spherical surface design ensures the cornea maintains its natural curved shape during storage, preventing folds and deformation. This curvature matching also helps the cornea stay centered on the bracket, reducing the likelihood of contact with desiccant and contamination risk.
Solution Approach 2:
The blocking portion not only prevents the cornea from sliding off but also creates a localized barrier that separates the cornea from the desiccant environment, reducing contamination risk while maintaining effective preservation.
3Ease of operation
If a clinician removes the cornea into another container to perform a rehydration procedure, then the cornea can be rehydrated, but this increases the risk of contaminating and damaging the cornea
Solution Approach 1:
The patent combines the preservation and rehydration functions into a single integrated packaging box. The box body can serve both as a storage container with desiccant for preservation and as a rehydration container by simply adding water, eliminating the need to transfer the cornea to another container and reducing contamination and damage risks.
Solution Approach 2:
The packaging box is designed with multi-functionality, serving both as a preservation container (with desiccant) and a rehydration container (with water). This universal design allows the same container to perform multiple functions throughout the cornea's storage and preparation process, improving ease of operation while minimizing handling risks.
Data Source
AI summary
A corneal preservation and rehydration device includes a box body and a box lid (1), wherein the box body and the box lid are detachably connected. A corneal bracket (2) is provided in the box body for holding a cornea, wherein a surface of the corneal bracket for placing a cornea is a convex spherical surface (21), and a blocking portion (22) is arranged at the surrounding of the convex spherical surface (21) for preventing a cornea from dropping out.