Hollow Micro Particle Light Diffusion for Medical Imaging Hot Spots
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Medical imaging devices using fiber optic light guides often suffer from hot spots, image speckle, and inadequate illumination on the periphery due to the nature of light emission, which affects image clarity during minimally invasive procedures.
Innovation Solution
A light diffusing composition comprising a translucent or opaque matrix with hollow micro particles, where the refractive index of the fluid within the particles differs from the matrix, is used to optimize image clarity by providing even illumination. This composition is integrated into a medical imaging device with a light source oriented parallel to the image plane, utilizing a GRIN lens and a pressure-sensitive or structural adhesive matrix to diffuse light uniformly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a fiber optic light guide is used to illuminate the target, then the light source provides focused illumination, but hot spots and image speckle occur due to the nature of light emission
Solution Approach 1:
A light diffusing composition is introduced as an intermediary element between the light source and the target. This composition contains a translucent matrix with hollow micro particles filled with fluid having a different refractive index, which diffuses the light and eliminates hot spots and image speckle while maintaining illumination uniformity
Solution Approach 2:
The light diffusing composition uses a composite structure combining a translucent matrix material with hollow micro particles filled with fluid of different refractive index. This composite material structure enables controlled light diffusion that eliminates harmful optical artifacts while maintaining uniform illumination
2Ease of operation
If a light source is positioned close to the target for minimally invasive imaging, then the imaging device can access difficult areas, but illumination becomes uneven with dark periphery
Solution Approach 1:
The light diffusing composition acts as an intermediary that redistributes light uniformly across the entire target area. When positioned close to the target for minimally invasive imaging, the composition ensures even illumination including the periphery, eliminating dark areas while maintaining the ability to access difficult locations
3Volume of moving object
If the light source is positioned close to the target, then the imaging device can be miniaturized, but the light distribution becomes concentrated and creates hot spots
Solution Approach 1:
The light diffusing composition serves as a mediator between the miniaturized light source and the target. It distributes the concentrated light from the small source uniformly across the target area, eliminating hot spots while enabling device miniaturization for minimally invasive procedures
Solution Approach 2:
The composition changes the optical parameters of light transmission by using a translucent matrix with hollow micro particles of different refractive index. This parameter change transforms the light distribution from concentrated to uniform, enabling both miniaturization and even illumination
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 solution enhances image clarity by achieving predictable and controllable light diffusion, increasing illumination uniformity, especially at close distances, and flattening the light distribution over the target area, thereby improving image quality and reducing hot spots and speckle.
Implementation Method 1
a light diffusing composition comprises a translucent matrix comprising a plurality of hollow micro particles. The plurality of hollow micro particles are dispersed throughout the translucent matrix and a fluid is disposed within the hollow micro particle. The refractive index of the fluid within the hollow micro particle is different than a refractive index of the translucent matrix.
Implementation Method 2
The refractive index of the fluid within the hollow micro particle is different than a refractive index of the translucent matrix
Data Source
AI summary
A light diffusing composition that optimizes image clarity from a SSID comprising a translucent matrix further comprising a plurality of hollow micro-particles. The plurality of hollow micro-particles are dispersed throughout the translucent matrix and a fluid is disposed within the hollow micro-particle. A refractive index of the fluid within the hollow micro-particle is different than a refractive index of the translucent matrix.