I. Core Technical Principles

Near-infrared imaging (NIR Technology)

The absorption characteristics of hemoglobin: Deoxyhemoglobin in veins has a higher absorption rate for near-infrared light of specific wavelengths (typically 700-900nm) than that in surrounding tissues.

Reflection difference imaging: The device emits near-infrared light onto the skin, and the camera captures the reflection signal. Through algorithms, the veins are contrasted and enhanced with the surrounding tissues to form a clear image.

Multispectral imaging (optional technology)

Some high-end devices combine visible light and near-infrared light and adapt to different skin tones (such as patients with dark skin) through multispectral analysis.

AI image processing

Edge enhancement algorithm: Highlighting vein contours and reducing noise interference.

Depth prediction: Estimate the depth of veins through reflection intensity to assist in locating deep veins.



Ii. Enhanced Features of Desktop Design

Stable projection system

Fixed projector: Avoid the shaking of  handheld devices Vein Finder and precisely project vein images onto the skin surface (such as green/red contours).

Adjustable stand: Freely adjust the height and Angle to fit different parts such as the arm, back of the hand, and foot.

High-precision camera

Equipped with high-resolution sensors, it captures subtle vascular signals in real time and, in combination with the optical zoom function, magnifies local areas.

Environmental adaptability

Automatic calibration: Dynamically optimize imaging parameters based on ambient light and skin color.

Anti-interference design: Reduce the influence of surgical lamps or other light sources on imaging.



Iii. Work Process (Taking Blood Drawing as an Example)

Step 1: Patient localization

The patient placed his arm flat under the device and kept it stable.

Step 2: Quick scan

The device emits near-infrared light, generating a vein distribution map within 1-2 seconds and projecting it in real time.

Step 3: Vascular selection

Medical staff select the best puncture site (such as thick, straight, and unbifurcated veins) through screen or projection markers.

Step 4: Precise puncture

The new technology for finding veins usually refers to one of the biometric technologies, namely vein recognition technology. Vein recognition is a biometric technology that verifies an individual’s identity by scanning and analyzing the vein images of a person’s fingers or hands. It uses the biological characteristics of the human venous system for identity authentication. These biological characteristics are unique to each person and difficult to forge, thus having high security and accuracy.



Regarding new technologies for finding veins, there are continuous new researches and developments to enhance recognition accuracy, precision and speed, while reducing costs and improving user experience. Some new technologies and trends include:



1.Multimodal biometric recognition: Combining vein recognition with other biometric features, such as fingerprint and facial recognition, to enhance recognition accuracy.



2.3D venous imaging: Utilizing three-dimensional imaging technology to obtain more detailed venous structure information, enhancing security and resisting attacks from biometric photos or models.



3. Mobile devices: Introduce miniaturized and portable vein recognition devices to provide more flexible solutions for mobile devices and machines.



4. Blockchain Technology: By integrating blockchain technology, ensure the secure storage and sharing of vein data, and protect user privacy and identity security.



5. Cloud Integration: Integrate vein recognition technology with cloud computing and the Internet of Things to provide more convenient identity verification solutions, such as applications in healthcare, finance, logistics and other fields.

The development of these new technologies has led to significant progress in vein recognition technology in terms of security, reliability and user experience, providing a wider range of applications for various fields.

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