Fluid Lens Intraocular Device with Sealing Channel
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional intraocular lenses (IOLs) fail to correct presbyopia, requiring patients to wear reading glasses despite clear distance vision, as they cannot change focus from far to near due to their design limitations.
Innovation Solution
A fluid lens IOL device with a channel and inclined interface to restrict the joining substance, preventing contamination and leakage, and a plug to seal the optical fluid, allowing for enhanced accommodative capacity and flexibility, enabling focus adjustment from far to near.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fluid lens IOL device is used to enable focus adjustment from far to near, then accommodative capacity is improved, but contamination of optical fluid may occur degrading vision along the optical axis
Solution Approach 1:
The IOL device is divided into separate components: an anterior member with a first peripheral portion and a posterior member with a second peripheral portion. These segments are joined through a joining channel that restricts joining substance to a predetermined area, preventing contamination of the optical fluid while maintaining accommodative capacity.
Solution Approach 2:
A joining substance is introduced as an intermediary material in the joining channel to bond the peripheral portions together. This intermediary restricts the spread of contamination to a predetermined area, protecting the optical fluid from degradation while enabling the fluid lens to maintain its accommodative function.
2Strength
If joining substance is applied to bond peripheral portions, then structural integrity is improved, but flexibility of accommodative components may be compromised
Solution Approach 1:
The joining substance is applied locally only in the joining channel at the peripheral portions, rather than throughout the entire lens structure. This localized application provides structural integrity where needed while preserving the flexibility of the accommodative components in the optical path.
Solution Approach 2:
By segmenting the lens into anterior and posterior members connected through a joining channel, the joining substance is confined to a predetermined area. This segmentation allows structural bonding at the periphery while maintaining optical flexibility in the central accommodative regions.
3Illumination intensity
If optical fluid is filled in the closed cavity, then optical clarity is improved, but leakage of optical fluid may occur reducing accommodative capacity
Solution Approach 1:
The IOL device uses segmented peripheral portions from the anterior and posterior members that are joined through a joining channel. This segmentation creates a closed cavity structure that contains the optical fluid, preventing leakage while maintaining optical clarity and accommodative capacity.
Solution Approach 2:
The joining substance acts as an intermediary sealing mechanism in the joining channel, creating a reliable barrier that prevents optical fluid leakage. This intermediary ensures the closed cavity maintains its integrity, preserving both optical clarity and the fluid's accommodative function.
Data Source
AI summary
An intraocular device that includes a fluid lens is provided. The fluid lens has an anterior side and posterior side that can be coupled together to form a closed cavity therebetween that can be filled with a liquid material. A channel can be formed in the posterior side that is configured to receive a joining substance that bonds the anterior side to the posterior side and inhibit the unintended spread of the joining substance. A syringe can be extended through a port in the fluid lens to flow liquid material into the closed cavity. Subsequently, a plug can be inserted into the port to prevent the escape of the liquid material.