Retinal Angiography Eye Phantom With Vascular Flow Channels
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Solution Overview
Problem
Conventional eye phantoms lack the vascular structure and blood flow simulation necessary for evaluating the performance of fifth-generation OCT equipment, which is equipped with angiography image acquisition capabilities, making it difficult to perform systematic evaluations and improvements in domestic OCT development.
Innovation Solution
An eye phantom with a multilayer film structure and fine fluid channel structures simulating the vascular structure of the retina, including nerve fiber and outer plexiform layers, coupled to the multilayer film structure to mimic blood vessel thickness and distribution, allowing for the circulation of blood simulating fluid through the vascular layer structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional eye phantom with multilayer film structure is used, then basic retinal structure simulation is achieved, but vascular structure and blood flow simulation are missing
Solution Approach 1:
The patent embeds fine flow channels within the vascular layer structure that is itself coupled to the multilayer film structure. The vascular layer contains nested fine flow channels, which are further nested within the broader multilayer retinal structure, creating a hierarchical simulation that adds vascular functionality without completely redesigning the base phantom structure.
Solution Approach 2:
The patent introduces a hydraulic simulation system by circulating blood simulating fluid through the fine flow channels. This hydraulic approach allows simulation of blood flow dynamics, vessel thickness variations, and vascular distribution patterns, enabling reliable evaluation of angiography image acquisition capabilities.
2Productivity
If domestic OCT equipment is developed without systematic evaluation, then development speed is maintained, but performance verification and improvement are difficult
Solution Approach 1:
The eye phantom with vascular structure serves as a self-contained evaluation system that domestic OCT developers can use independently. The phantom includes all necessary components (multilayer structure, vascular layer, flow channels, blood simulating fluid) to perform systematic performance verification without requiring external resources or complex evaluation infrastructure.
Solution Approach 2:
The patent enables systematic performance evaluation by allowing adjustment of various parameters including blood simulating fluid circulation rate, vessel thickness, and vascular distribution patterns. These parameter changes facilitate comprehensive testing of OCT equipment under different conditions, supporting both performance verification and iterative improvement.
3Adaptability or versatility
If fifth generation OCT with angiography function is evaluated using conventional phantom, then basic imaging evaluation is possible, but angiography-specific performance evaluation is impossible
Solution Approach 1:
The patent creates a realistic copy of retinal vascular structure by forming fine flow channels that replicate actual blood vessel morphology, including thickness variations and distribution patterns. This copying approach preserves vascular structure information that is essential for evaluating angiography image acquisition, allowing fifth generation OCT to be tested with authentic vascular-like features.
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
Enables accurate performance evaluation of OCT equipment, particularly for fifth-generation systems, by simulating the vascular structure and blood flow, facilitating smoother development and industrial application of domestic OCT technology.
Implementation Method 1
a fine flow channel to simulate a vascular structure of the retina, allowing for the circulation of blood simulating fluid through the vascular layer structure
Data Source
AI summary
The present invention relates to an eye phantom for evaluating a retinal angiography image, and a manufacturing method therefor. A purpose of the present invention is to provide an eye phantom for evaluating a retinal angiography image, capable of simulating even the vascular structure and blood flow of a retina so as to be more similar to an actual retinal structure than a conventional eye phantom; and a manufacturing method therefor. More specifically, a purpose of the present invention is to provide an eye phantom for evaluating a retinal angiography image, including various shapes of fine fluid channel structures corresponding to the vascular structure formed in an actual retina; and a manufacturing method therefor.