Dome-Shaped Infrared Vein Detection Apparatus
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Solution Overview
Problem
Conventional devices for visualizing veins under the skin using infrared light struggle with uniform illumination, noise from external light sources, and the inability to display enlarged, natural color images effectively.
Innovation Solution
A hypodermic vein detection imaging apparatus featuring a dome-shaped holder with uniformly spaced infrared LEDs, a rotating mechanism for uniform illumination, an optical zoom lens for image enlargement, and an infrared transmitting filter to separate and process infrared and visible light, allowing for natural color imaging and enhanced vein visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional light sources and diffusion structures are used to illuminate the skin, then light can be distributed across the area, but the illumination is non-uniform and the structure becomes complex
Solution Approach 1:
The patent employs a dome-shaped holder with infrared LEDs arranged along a circular arc, positioned at a fixed distance from the skin surface. This curved geometric arrangement ensures that all light sources are equidistant from the target area, providing uniform illumination intensity across the entire illuminated region without requiring complex diffusion structures or multiple adjustment mechanisms.
2Object-affected harmful factors
If conventional imaging devices are used, then basic vein visualization is achieved, but external light noise cannot be effectively removed
Solution Approach 1:
The patent uses an infrared-transmissive filter that selectively transmits infrared wavelengths while blocking visible light from external sources such as sunlight and room lighting. This extraction of the desired infrared signal from the mixed light spectrum effectively removes harmful external light noise, enabling precise vein image detection even in environments with bright ambient lighting.
3Difficulty of detecting and measuring
If life-size imaging is used, then the device is simple, but capillaries and fine details cannot be seen
Solution Approach 1:
The patent incorporates a rotating mechanism that moves the dome-shaped holder and integrated camera system across the skin surface. This dynamic scanning approach, combined with image processing techniques, enables the detection and visualization of fine capillary networks and detailed vein structures by capturing multiple views and synthesizing them into a comprehensive map, without requiring a single complex high-magnification lens system.
4Adaptability or versatility
If monochromatic infrared imaging is used, then the vein structure is visible, but natural color information is lost
Solution Approach 1:
The patent integrates a single camera system capable of capturing both infrared-transmissive images (for vein structure visualization) and natural color images (for skin surface appearance). The dome-shaped holder and filtering mechanism serve dual purposes: enabling infrared imaging while maintaining the capability for visible light photography, providing versatile imaging functionality without requiring separate dedicated systems for each imaging mode.
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 apparatus achieves uniform infrared illumination, effectively removes noise from external light sources, and provides enlarged, natural color images, enabling clear detection of capillary vessels and precise vein location identification.
Implementation Method 1
illuminating the skin with infrared light that has geometrically uniform intensity distribution and is radiated from arranged infrared sources such as infrared emission diodes (infrared LEDs)
Implementation Method 2
light in the near-infrared region, which penetrates the skin best and obtains maximum absorption of blood
Implementation Method 3
an infrared transmitting filter for filtering light transmitted from the optical zoom lens
Implementation Method 4
an optical zoom lens positioned at the center of the top of the dome-shaped holder
Data Source
AI summary
The present invention is to provide a hypodermic vein detection imaging apparatus capable of visualizing a vein under the skin. The hypodermic vein detection system according to the present invention comprises a hypodermic vein detection imaging apparatus (10) comprising a dome-shaped holder (12), a plurality of infrared light sources (11) arranged at a uniform interval in a circumferential direction on the inner surface of the dome-shaped holder (12), a motor driving unit (13) for rotating the dome-shaped holder (12), teeth (14) meshing with the motor driving unit and formed on the dome-shaped holder (12), an optical zoom lens (15) positioned at the center of the top of the dome-shaped holder, an infrared transmitting filter (16) for filtering light transmitted through the optical zoom lens (15), a first image detector (17) receiving light filtered by the infrared transmitting filter (16), and an image display device (10) for visualizing digital image information obtained by the first image detector (17).