Prosthetic Capsular Housing for Precise Lens Positioning

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Solution Overview

Problem

Current cataract surgery techniques face challenges in achieving precise refractive outcomes due to variability in the final resting position of the lens implant, which is influenced by the volumetric differences between the cataract, natural capsular bag, and intraocular lens implant.

Innovation Solution

The development of a prosthetic capsular device that can be inserted into the eye after cataract removal, featuring a housing structure with a refractive surface and a design that allows for the containment of additional intraocular devices, such as intraocular lenses or sensors, to enhance refractive precision and accommodate various visual needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional intraocular lens implantation is performed, then cataract surgery can be completed, but precise refractive outcomes are difficult to achieve due to variability in lens implant resting position

Engineering Contradiction:

Improverefractive outcome precisionVSAvoidlens implant resting position consistency

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The patent introduces a capsular tension ring as an intermediary device between the natural capsular bag and the intraocular lens. This tension ring provides a stable, predetermined support structure that mediates the interaction between the soft capsular bag and the lens implant, ensuring consistent lens positioning and reliable refractive outcomes.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent modifies the physical parameters of the capsular support structure by introducing a tension ring with specific mechanical properties (tension, rigidity, expandability). These parameter changes transform the soft, variable capsular bag into a structured support system with controlled mechanical characteristics, enabling precise lens positioning.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If the capsular bag volume differs from the intraocular lens volume, then surgical flexibility is maintained, but refractive precision is compromised due to positional variability

Engineering Contradiction:

Improvesurgical flexibilityVSAvoidrefractive outcome precision

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent applies local quality by creating a specific zone of structural support at the capsular level. The tension ring provides localized rigidity and shape definition where needed (at the capsular opening and lens support zone), while the rest of the capsular bag maintains its natural flexibility and volume characteristics.

Inventive Principle:

Principle #3Local quality

3Reliability

If a structured capsular support device is inserted, then lens implant positioning is improved, but device complexity increases

Engineering Contradiction:

Improvelens implant positioning consistencyVSAvoidcapsular device structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the capsular support function into distinct components: the capsular tension ring structure and the intraocular lens implant. This segmentation allows each component to be optimized independently - the tension ring provides structural support while the lens provides refractive function, simplifying the overall system design compared to integrated alternatives.

Inventive Principle:

Principle #1Segmentation

4Ease of manufacture

If traditional surgical methods are used, then surgical simplicity is maintained, but variability in refractive outcomes increases

Engineering Contradiction:

Improvesurgical procedure simplicityVSAvoidrefractive outcome precision

Core Design Contradiction:

Ease of manufactureVSMeasurement precision

Solution Approach 1:

The patent applies preliminary action by inserting the capsular tension ring before the intraocular lens implantation. This preliminary structural preparation creates a predetermined, stable support framework that guides subsequent lens placement, ensuring consistent positioning and reducing surgical variability without significantly increasing overall procedure complexity.

Inventive Principle:

Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution enables more precise control over refractive outcomes in cataract surgery by allowing for the customization of refractive power and the inclusion of additional optical devices, thereby reducing the variability associated with traditional surgical methods.

Implementation Method 1

the anterior opening is further configured to be coupled to a refractive surface to cover the anterior opening... the posterior opening is further configured to be coupled to a refractive surface to cover the posterior opening

Methodology Applied

Scientific EffectRefraction: Refraction

Data Source

PatentUS20250288408A1Prosthetic capsular devices, systems, and methods

Publication Date: 2025.09.18 OMEGA OPHTHALMICS LLC

AI summary

A prosthetic capsular device configured to be inserted in an eye after removal of a lens, in some embodiments, can comprise a housing structure comprising capable of containing an intraocular device and an equiconvex refractive surface. The housing structure can comprise an anterior portion comprising an anterior opening, a posterior portion comprising a posterior opening, and a continuous lateral portion between the anterior portion and the posterior portion.