Intraocular Optic Capture Device for Repositioning Dislocated Lenses
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Solution Overview
Problem
Dislocated intraocular lenses (IOLs) pose risks during eye surgeries, including dislocation and rotation, which often require removal rather than repositioning, especially for astigmatic and presbyopia correction lenses.
Innovation Solution
An intraocular optic capture device (IOCD) with a flexible body and fixing arms is used to reposition and fixate dislocated IOLs within the eye, allowing for interference fit and scleral fixation without large incisions, using sutures or haptics to prevent rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dislocated IOLs are removed from the eye, then surgical risks are reduced, but optical functionality is lost and additional surgery is required
Solution Approach 1:
The capture device serves as an intermediary tool that enables safe repositioning of the dislocated IOL without requiring its removal. The device captures the IOL through its opening, provides stable manipulation during repositioning, and allows secure fixation in the correct position, thereby maintaining optical functionality while ensuring surgical safety
Solution Approach 2:
The capture device is designed with segmented components including a ring body with an opening for capturing the IOL, and separate fixing arms that can be independently positioned and secured. This segmentation allows the device to adapt to different IOL sizes and positions while maintaining stable capture and fixation
2Ease of operation
If large corneal or scleral incisions are made to access the posterior chamber, then access to dislocated IOL is improved, but surgical trauma and recovery time increase
Solution Approach 1:
The capture device is designed with a nested structure where the IOL can be captured through the opening in the ring body, and the fixing arms can be nested within or around the IOL haptics. This nested design allows access through small incisions while maintaining the ability to securely capture and fixate the IOL in the posterior chamber
3Reliability
If astigmatic and presbyopia correction lenses are removed, then dislocation risks are eliminated, but refractive correction is lost
Solution Approach 1:
The capture device is designed with pre-configured fixing arms and opening dimensions that allow for preliminary capture and stabilization of the IOL before final fixation. This preliminary action ensures proper positioning and orientation of the astigmatic or presbyopia correction lens, preventing dislocation while preserving its refractive correction function
Solution Approach 2:
The capture device is designed with universal applicability to different types of IOLs including astigmatic and presbyopia correction lenses. The ring body with adjustable opening and multi-configurable fixing arms can accommodate various IOL sizes, shapes, and designs, allowing safe repositioning and fixation while preserving the specific refractive correction function of each lens type
Data Source
AI summary
An intraocular optic capture device is provided to replace an intraocular lens dislocated within an eye. The intraocular optic capture device includes a body defining an opening configured to receive and hold the intraocular lens. The intraocular optic capture device includes one or more fixing arms extending from the body and configured to fix the body to a structure of the eye.