Modular Intraocular Lens With Locking Tabs
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Solution Overview
Problem
Current intraocular lenses face challenges in mechanical stability, usability, and optical outcomes, particularly in terms of alignment and reduction of refractive errors during and after implantation, with existing designs not adequately addressing issues like anterior capsule opacification and decentration.
Innovation Solution
A modular intraocular lens design featuring a circumferentially locking optic with anterior features, including a base ring, optic stabilizers, and haptics, which facilitate assembly, alignment, and stabilization of adjunct optics, reducing refractive errors and improving optical outcomes by mitigating anterior capsule opacification and allowing in vivo identification of optical features during implantation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a modular intraocular lens design with circumferentially locking optic is used, then mechanical stability and alignment precision are improved, but device complexity increases
Solution Approach 1:
The intraocular lens is divided into separate modular components including a base ring, optic, haptics, and locking tabs that can be assembled and disassembled. This segmentation allows for improved mechanical stability through precise fitting of components while managing complexity through standardized interfaces and assembly procedures.
Solution Approach 2:
The locking tabs are positioned within junctions formed by the haptics and base ring, creating a nested configuration where the optic is secured within the base ring structure. This nesting approach provides stable mechanical interlocking while maintaining a compact overall device architecture.
2Manufacturing precision
If circumferentially locking optic with anterior features is used, then alignment precision and optical outcomes are improved, but ease of manufacture decreases
Solution Approach 1:
The locking tabs and junction features are pre-formed during manufacturing of individual components (base ring and haptics) before final assembly. This preliminary creation of alignment features ensures precise optical alignment while simplifying the overall manufacturing process by allowing separate component fabrication followed by straightforward assembly.
3Reliability
If optic stabilizer with adjunct support is used, then optical outcomes and refractive error reduction are improved, but device complexity increases
Solution Approach 1:
The optic stabilizer structure serves multiple functions simultaneously: it provides mechanical support for the optic, enables precise alignment, facilitates secure attachment to the base ring through locking tabs, and allows for adjustable positioning. This multi-functionality improves optical outcomes while managing device complexity by consolidating multiple requirements into a single integrated component.
Data Source
AI summary
A modular optical implant, which may comprise a base ring and an optic with features that enable assembly, alignment, and stabilization of adjunct optics. The optic may have features that interface with other optics and improve optical outcomes through rigid alignment of adjunct optics, mitigation of anterior capsule opacification, in vivo identification of optical features while implanting the lens, and reduction of refractive error. More generally, some embodiments may be an optical implant, which may comprise a posterior optic surface, an anterior optic surface, an optic edge between the posterior optic surface and the anterior optic surface, a locking tab coupled to the posterior optic surface, and an optic stabilizer coupled to the anterior optic surface.