Enhanced Multifocal Intraocular Lens with Optimized Refractive-Diffractive Structure
Legal Citation
Summary of the Inventive Concept
A novel multifocal intraocular lens design that combines optimized refractive-diffractive surfaces to minimize aberrations and improve visual acuity at multiple focal lengths, providing improved visual performance and reduced dependence on pupil size.
Background and Problem Solved
The original multifocal intraocular lens patent (Multifocal intraocular lens) has limitations in terms of visual performance and pupil dependence. The new inventive concept addresses these limitations by introducing an optimized refractive-diffractive structure that reduces aberrations and improves visual acuity, enabling better visual outcomes for patients.
Detailed Description of the Inventive Concept
The enhanced multifocal intraocular lens features a refractive-diffractive structure optimized using machine learning algorithms to minimize aberrations and improve visual acuity at multiple focal lengths. The lens is fabricated using 3D printing techniques, allowing for precise control over the diffractive profile. Additionally, the lens may include an anti-reflective coating to reduce glare and improve visual comfort. A software module analyzes the patient's visual preferences and prescription, and a manufacturing module fabricates a customized lens based on the analysis.
Novelty and Inventive Step
The new claims introduce an optimized refractive-diffractive structure, which is a novel and non-obvious improvement over the original patent. The use of machine learning algorithms to optimize the diffractive profile and the incorporation of 3D printing techniques for fabrication are also innovative aspects of the new inventive concept.
Alternative Embodiments and Variations
Alternative embodiments of the enhanced multifocal intraocular lens could include varying the refractive-diffractive structure to accommodate different patient populations or using different materials for the lens. Additionally, the software module could be modified to incorporate additional patient data or preferences.
Potential Commercial Applications and Market
The enhanced multifocal intraocular lens has significant commercial potential in the ophthalmic industry, particularly in the areas of cataract and refractive surgery. The ability to provide improved visual performance and reduced dependence on pupil size could lead to increased adoption and market share.
CPC Classifications
| Section | Class | Group |
|---|---|---|
| A | A61 | A61F2/1618 |
| A | A61 | A61F2/1656 |
| G | G02 | G02B5/1876 |
Section 103 Obviousness Analysis (PHOSITA)
Field of Art
Ophthalmic medical devices, specifically intraocular lens (IOL) design and manufacturing, involving advanced optical engineering, materials science, and precision fabrication techniques
Person of Ordinary Skill (PHOSITA) Profile
A biomedical engineer or optical systems designer with expertise in ophthalmic prosthetics, advanced manufacturing techniques, machine learning applications in medical device optimization, and knowledge of diffractive optical principles
Obviousness Rationale
A person having ordinary skill in the art would recognize that the PTD's machine learning-driven optimization of diffractive lens profiles and 3D printing fabrication represent predictable extensions of existing multifocal IOL design principles. The disclosed variations leverage known computational design techniques and advanced manufacturing methods to incrementally improve optical performance, which would be an expected approach for enhancing intraocular lens technology.
Obvious Combinations & Variations
Original Patent Information
| Patent Number | US 11,857,392 |
|---|---|
| Title | Multifocal intraocular lens |
| Assignee(s) | HANITA LENSES LTD. |