Ring-Shaped Intraocular Lens Support for Stable Haptic Fixation
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Solution Overview
Problem
Existing intraocular lenses lack standardized supports and connecting means that can universally interface with all types, leading to compatibility issues and unstable positioning, which compromises vision correction and accommodative functionality.
Innovation Solution
A connecting support with a standardized inner surface and integrated fixation means, featuring a ring-shaped structure with convex walls and a bent portion to securely seat the haptic part, allowing efficient force transmission and stable positioning of intraocular lenses within the capsular bag.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional capsular tension rings are used to maintain the circular contour of the capsular bag, then the structural stability of the capsular bag is improved, but adhesion between the anterior and posterior capsules occurs, compromising the lens thickness adjustment of the intraocular lens
Solution Approach 1:
The connecting support is divided into distinct functional sections: a front section for maintaining capsular bag contour, a rear section for force transmission, and fixation means for securing the haptic part. This segmentation allows each part to perform its specific function without interfering with others, resolving the contradiction between maintaining structural stability and enabling lens adjustment.
Solution Approach 2:
The connecting support acts as an intermediary structure between the capsular bag and the intraocular lens. It mediates the forces from the ciliary body to the lens while maintaining the capsular bag contour, thereby enabling lens thickness adjustment without direct adhesion between capsules.
2Force
If support structures and connecting means are used to transfer forces from the capsular bag to the intraocular lens, then force transmission efficiency is improved, but compatibility issues arise when using with intraocular lenses that lack standardized interfaces
Solution Approach 1:
The connecting support is designed with a standardized inner surface configuration that can universally interface with different types of intraocular lenses. The fixation means with bent portions can accommodate various haptic part designs, making the support structure compatible with multiple lens types while maintaining effective force transmission.
3Stability of the object's composition
If the support structure is made larger to ensure stable positioning of the intraocular lens, then positioning stability is improved, but the incision length required during cataract surgery increases
Solution Approach 1:
The connecting support is designed to nest within the capsular bag, utilizing the existing capsular space efficiently. The ring-shaped structure with optimized dimensions allows stable lens positioning without requiring excessive overall size, thereby minimizing the incision length needed for implantation.
Data Source
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AI summary
An intraocular lens according to one aspect of the present invention comprises: an optic part (100) and a haptic part (200), wherein the haptic part (200) includes a connecting portion (220) connected to the optic part (100) and at least three ring-shaped loops (210) extending from the connecting portion (220).