Indwelling Medical Device Assembly for Full Near-Infrared Visualization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing indwelling-type medical devices face challenges in achieving near-infrared fluorescence visualization without using expensive fluorescent materials throughout the entire device, particularly with materials like silicone or latex, which do not exhibit sufficient fluorescence when kneaded with near-infrared fluorescent dyes.
Innovation Solution
The device comprises a first assembly made of a material containing a near-infrared fluorescent dye and a second assembly made of a material that reflects near-infrared light, allowing fluorescence to be obtained from the entire device without applying the dye to both assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If near-infrared fluorescent material is kneaded into silicone or latex resin to make the entire device fluorescent, then the device can be visualized, but the cost increases and fluorescence is not appreciably obtained
Solution Approach 1:
The patent applies near-infrared fluorescent material only to specific portions of the medical device (first assembly) rather than the entire device. The second assembly uses a reflective material to reflect the fluorescence from the first assembly, achieving device-wide visualization without applying expensive fluorescent material throughout the entire device structure.
Solution Approach 2:
The patent introduces a reflective material as an intermediary substance in the second assembly. This reflective material mediates the fluorescence signal from the first assembly, allowing the entire device to be visualized without the fluorescent material being present in all components.
2Illumination intensity
If ICG is used as near-infrared fluorescent dye, then fluorescence can be obtained, but heat resistance is low and structural stability is poor
Solution Approach 1:
The patent changes the material parameters by selecting different resin types for different assemblies. The first assembly uses a resin compatible with the fluorescent material, while the second assembly uses a reflective material that does not require the fluorescent dye. This parameter change allows the device to maintain structural stability and heat resistance while achieving the required fluorescence visualization.
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
This configuration enables visualization of the entire device using reflected fluorescence, reducing costs by minimizing the use of expensive fluorescent materials and enhancing visualization capabilities.
Implementation Method 1
a first assembly made of a first material containing a fluorescent dye that emits near-infrared light
Implementation Method 2
a second assembly made of a second material that reflects near-infrared light and that reflects the near-infrared light emitted from the first assembly
Data Source
AI summary
To provide an indwelling-type medical device capable of obtaining near-infrared light from the entire device by partially using a near-infrared fluorescent material. The indwelling-type medical device includes a first assembly made of a first material containing a fluorescent dye that emits near-infrared light, and a second assembly made of a second material that reflects near-infrared light and that reflects the near-infrared light emitted from the first assembly.