Multi-piece insert sealing for wireless ophthalmic lens power
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Solution Overview
Problem
Existing ophthalmic devices, such as contact lenses and intraocular lenses, lack a mechanism for wireless energization, limiting their ability to incorporate active components that require power, like semiconductor devices, which can only be powered through wires or not at all.
Innovation Solution
The development of methods and apparatus for sealing and encapsulating energized components within ophthalmic lenses using a multi-piece insert, which includes an energy source and circuitry, allowing for wireless power and integration of active electronic devices, such as semiconductor devices, within a biocompatible framework.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If semiconductor devices are embedded in contact lenses, then vision-correcting functionality and cosmetic enhancement are provided, but the devices lack a freestanding energizing mechanism and cannot be wirelessly powered
Solution Approach 1:
The contact lens is divided into multiple segments: a base lens providing optical correction, and separate embedded components including semiconductor devices, energy storage elements, and wireless power reception components. This segmentation allows each component to perform its specific function independently while being integrated into the overall lens system.
Solution Approach 2:
Multiple functional components are nested within the contact lens structure. Semiconductor devices, energy storage elements, and wireless power components are embedded within the lens material or mounted on its surfaces, creating a layered, nested configuration where smaller functional units are contained within the larger lens system.
2Use of energy by moving object
If wires extend from ophthalmic lens to battery, then semiconductor devices can be powered, but the structure becomes more complex and less biocompatible
Solution Approach 1:
The battery and power management components are extracted from the contact lens itself and placed in an external location (such as behind the ear or in a remote pouch). Only the essential wireless power reception and control components remain embedded in the lens, eliminating the need for physical wire connections while maintaining power supply functionality.
Solution Approach 2:
Physical wire connections are replaced with a wireless power transmission system. The contact lens incorporates wireless power reception components that receive energy wirelessly from an external source, eliminating the mechanical wire connection system and reducing structural complexity and biocompatibility concerns.
3Adaptability or versatility
If multiple components are integrated into ophthalmic lens, then functionality is enhanced, but sealing and encapsulation become more difficult
Solution Approach 1:
Multiple components are pre-assembled and pre-sealed into a integrated unit or insert before being incorporated into the contact lens. This preliminary assembly and sealing of components simplifies the final lens manufacturing process, as the pre-assembled unit can be inserted as a single component rather than assembling multiple separate elements during lens fabrication.
Data Source
AI summary
This invention discloses methods and apparatuses for sealing and encapsulating components on and within a multi-piece insert. In some embodiments, an ophthalmic lens is cast molded from a silicone hydrogel and the component includes a sealed and encapsulated multi-piece insert portion.