Vitreous Illuminator Angle and Wavelength for Retina Contrast
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Solution Overview
Problem
Current ophthalmic surgery techniques face challenges in visualizing the vitreous during procedures due to its transparent and colorless nature, which makes it difficult to distinguish from the retina, leading to potential surgical errors.
Innovation Solution
A vitreous visualization system that includes a vitreous illuminator with a specific light source and tool designed to transmit light at a focused angle and wavelength, enhancing the visibility of the vitreous by creating a higher brightness ratio compared to the retina, using optical fibers and adjustable luminous flux to improve illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If general illumination is used during ophthalmic surgery, then the surgical field is adequately lit, but the vitreous remains invisible due to its transparent and colorless nature
Solution Approach 1:
The illumination system is segmented into two distinct components: a general illuminator for overall surgical field illumination and a vitreous illuminator specifically designed to illuminate the vitreous. This segmentation allows each illuminator to be optimized for its specific function, with the vitreous illuminator using targeted wavelengths and angles to make the transparent vitreous visible without requiring complete system redesign
Solution Approach 2:
The vitreous illuminator applies local quality by delivering light with specific properties (particular wavelengths, focused angle, higher intensity) precisely to the vitreous region. This localized illumination with tailored characteristics enables vitreous visualization without affecting the overall surgical field illumination, resolving the contradiction between visibility enhancement and system complexity
2Illumination intensity
If the vitreous is illuminated with higher intensity light, then the vitreous becomes more visible, but the retina may become overexposed and lose contrast
Solution Approach 1:
The system applies local quality by directing the high-intensity vitreous illumination at a specific angle that targets the vitreous while avoiding direct illumination of the retina. The vitreous illuminator is positioned and angled to illuminate only the vitreous humor, allowing high intensity where needed without overexposing the retina and maintaining its natural contrast and detail
Solution Approach 2:
The system employs periodic action by alternately activating the vitreous illuminator and general illuminator, or by using pulsed illumination from the vitreous illuminator. This temporal separation allows the vitreous to be brightly illuminated in pulses while the retina remains properly illuminated by the general illuminator during other periods, preventing permanent overexposure and maintaining overall image quality
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
The system effectively renders the vitreous more visible by providing a focused light source with higher luminous flux and specific wavelengths, reducing the risk of surgical errors and improving surgical precision during ophthalmic procedures.
Implementation Method 1
a vitreous visualization tool that transmits light from the vitreous visualization light source into an eye
Implementation Method 2
the brightness of vitreous in the eye is higher than the brightness of the retina of the eye
Implementation Method 3
using optical fibers and adjustable luminous flux to improve illumination
Data Source
AI summary
The present disclosure provides a vitreous visualization system including a vitreous illuminator including a vitreous visualization light source and a vitreous visualization tool that transmits lights from the vitreous visualization light source into an eye having vitreous, a pupil, and a vitreous-pupil axis. The vitreous visualization system further includes a general illuminator, which may include a general light source and a general illumination tool that transmits light from the general light source into the eye. The present disclosure further provided a vitreous visualization system including only a vitreous illuminator that transmits light from the vitreous visualization light source into an eye having vitreous, a pupil, a vitreous-pupil axis, and a retina at an angle B with the vitreous-pupil axis of the eye such that the brightness of vitreous in the eye is higher than the brightness of the retina of the eye.