Gonio Lens Stabilization Mechanism for Ocular Surgery
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Solution Overview
Problem
Current gonio lens systems for ophthalmic surgeries face challenges in providing precise visualization and control over the eye movement without applying excessive pressure, which can lead to complications and extended procedure times due to involuntary or voluntary eye movements during surgeries.
Innovation Solution
A gonio lens system incorporating a handle with a gonio lens and stabilization mechanism, featuring independent pivot and rotation points, and positioning features such as scleral depressor and cleat arcs, allowing for controlled movement and stabilization of the eye without excessive pressure, enabling precise visualization and reduced procedure time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visualization and fixation techniques are used to control eye positioning, then surgical precision is improved, but excessive pressure is applied to the eye causing damage and deformation
Solution Approach 1:
The device segments the functions of eye control into distinct components: the gonio lens for visualization and separate positioning features (scleral depressor, cleat arcs) for gentle eye movement control. This segmentation allows each component to perform its function independently without concentrating excessive force on a single point of the eye.
Solution Approach 2:
The positioning features act as intermediaries between the clinician's manipulation and the eye globe. These features provide mechanical advantage and distribute forces through larger contact areas (scleral surface), mediating the interaction to achieve eye positioning without direct excessive pressure on sensitive ocular structures.
2Ease of operation
If added pressure is applied to control eye movement, then positioning control is improved, but incisions are damaged and eye globe is deformed
Solution Approach 1:
The device applies localized control forces to specific regions of the eye (scleral surface) rather than distributing pressure across the entire globe. The positioning features engage at discrete locations to provide sufficient control while leaving other areas, including incisions, undisturbed and intact.
Solution Approach 2:
The positioning features are designed with curved surfaces that conform to the spherical geometry of the eye globe. This curvature allows for gentle engagement with the sclera, distributing forces along the curved surface rather than creating concentrated pressure points that could damage incisions or deform the globe.
3Ease of operation
If traditional fixation techniques are used, then eye positioning is controlled, but procedure time is extended due to complications
Solution Approach 1:
The positioning features are designed to be engaged before critical surgical steps, establishing stable eye positioning in advance. This preliminary control prevents involuntary movements during critical phases of the procedure, avoiding complications and time losses that would result from needing to reposition or address movement-related issues.
Data Source
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AI summary
This disclosure relates generally to methods and devices for use in viewing and positioning an eye with a gonio lens system, such as during ocular exams and ocular surgeries. Some embodiments of the gonio lens system can include a gonio lens for viewing one or more tissues and structures of the eye. In addition, the gonio lens system can include one or more positioning features for controlling movement positioning of the eye.