Lens Capsule Reconstruction Ring for Stable Intraocular Lens Position

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing intraocular lenses are sensitive to exact centration and positioning, and posterior capsule opacification is a common issue post-surgery, leading to decreased visual acuity and glare, with current devices failing to consider modern accommodation theories and the complexity of zonular traction.

Innovation Solution

A device comprising a ring-shaped rigid component and a flexible component with a groove to secure intraocular lens haptics, designed to maintain the shape of the natural lens capsule and ensure precise alignment, using biocompatible materials like silicon or poly(methyl methacrylate) to accommodate dynamic eye structures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the posterior lens capsule is left intact during surgery, then the intraocular lens can be implanted in the capsular bag, but posterior capsule opacification occurs leading to decreased visual acuity and glare

Engineering Contradiction:

Improveintraocular lens implantation stabilityVSAvoidposterior capsule opacification

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and removes residual lens epithelial cells from the posterior lens capsule surface during surgery, eliminating the source of future opacification while preserving the capsular bag structure for IOL implantation. This direct removal approach prevents cell proliferation without compromising surgical stability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent performs preliminary removal of lens epithelial cells from the posterior capsule surface before IOL implantation, preventing future opacification. By addressing the root cause beforehand, the procedure eliminates the need for secondary YAG laser capsulotomy and prevents visual degradation.

Inventive Principle:

Principle #10Preliminary action

2Object-affected harmful factors

If laser capsulotomy is used to treat posterior capsule opacification, then visual acuity can be improved, but complications such as retinal detachment or intraocular pressure rise may occur

Engineering Contradiction:

Improvevisual acuity improvementVSAvoidretinal detachment and intraocular pressure rise

Core Design Contradiction:

Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The patent performs preliminary removal of lens epithelial cells from the posterior capsule surface during the initial cataract surgery, preventing future opacification that would require laser treatment. This proactive approach eliminates the need for secondary YAG laser capsulotomy and its associated risks.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent converts the potentially harmful laser capsulotomy procedure into a beneficial preventive measure by mechanically removing epithelial cells during surgery. This transforms a risky secondary intervention into a safe primary prevention strategy, eliminating retinal detachment and pressure rise complications.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Ease of manufacture

If residual lens epithelial cells remain on the posterior capsule, then the surgery is simpler, but the cells migrate and proliferate forming lens material layers and Elschnig pearls

Engineering Contradiction:

Improvesurgical simplicityVSAvoidlens material formation and Elschnig pearls

Core Design Contradiction:

Ease of manufactureVSObject-generated harmful factors

Solution Approach 1:

The patent extracts and removes residual lens epithelial cells from the posterior lens capsule surface during surgery, eliminating the source of future opacification. This direct removal approach prevents cell proliferation while maintaining surgical efficiency.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies preliminary anti-action by removing lens epithelial cells before they can migrate and proliferate. This preventive measure blocks the harmful process of lens material formation and Elschnig pearl development before it can occur.

Inventive Principle:

Principle #9Preliminary anti-action

Data Source

PatentUS12427012B2Devices for reconstruction of a lens capsule after cataract surgery

Publication Date: 2025.09.30 EYE PCR BV

AI summary

Provided herein are devices used to reconstruct a natural lens capsule after a cataract surgery. The device has a ring-shaped rigid component, a ring-shaped flexible component and a groove disposed on an inner surface of the rigid component. The rigid component has a distal end attached to the ring-shaped flexible component and a proximal end that lies against Wieger's ligament when fitted within the natural lens capsule. The ring-shaped flexible component has a proximal end that is attached to the distal end of the rigid component and a distal end that contacts an anterior surface of the natural lens capsule when fitted therein. The groove is disposed to receive optics of an intraocular lens and/or the ledge is disposed to secure haptics thereof.