What is Helium-Neon Laser Medical Device?

Helium-Neon Laser Medical Device is a circuit & prototype documented in the Chinese Practical Production Technology collection. The entry keeps the original material list, quantities and sequence, so you can follow the method as printed.

Is this an authentic Chinese method?

Yes. The underlying text is from mainland Chinese workshop literature aimed at small producers and home makers; the English on this page is a direct translation with the original numbers and steps preserved.

What do I need to get started?

Common discrete components, a breadboard or PCB, a low-voltage supply and a multimeter. No specialised tool is required for the first build.

How long does it take?

The timing depends on your climate, batch size and equipment rather than on the text; the source records the process sequence rather than fixed hours, so follow the stages and check the material state at each one.

Can I run this as a small business?

Many entries in this collection were written with small-scale and home production in mind. Before selling, confirm the food-safety, labelling and local-registration rules that apply where you operate.

Is the full text available?

The complete English translation is in this article and is the same text used for the PDF download. Buying the PDF unlocks the full document without the preview cutoff.

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Practical Helium-Neon Laser Medical Device: Traditional Chinese Circui

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In short: Traditional Chinese Practical Helium-Neon Laser Medical Device: Circuit Design, Parts List & Workshop Prototype Guide. This entry documents a circuit & prototype taken from Chinese practical-technology literature, written for small-scale makers and home producers. The text below is the full English translation of the original Chinese workshop notes, covering materials and quantities, the step-by-step sequence, and the practical cautions recorded in the source. Roughly 1697 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.

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Helium-neon laser medical deviceHelium-neon laser has the advantages of good monochromaticity, strong directionality, high brightness, and good coherence. It is widely used in various clinical departments to treat skin, inflammation, ulcers, postoperative wound healing, photoacupuncture anesthesia, laser tooth extraction, hypertension, gynecology, etc.The structure of the helium-neon laser is shown in Figure 54-1. Its working substance (i.e., luminous substance) realizes the inversion distribution of particle numbers between certain energy levels under the action of the excitation system (i.e., energy source) to complete the stimulated radiation of atoms (or molecules, ions), and through the resonant cavity in the laser to achieve its amplification of light waves, thereby obtaining a laser with the same propagation direction, consistent phase, single frequency and highly concentrated energy.The circuit principle of the laser medical device is shown in Figure 54-2. The secondary 110V voltage of power transformer B is rectified by a quadruple voltage (instantaneous peak voltage) circuit composed of C1, C2, C3, VD1, VD2, and VD3 to obtain a DC high voltage of more than 4kV, which excites and triggers the helium-neon laser tube. alt="89.jpg (26565 bytes)">Figure 54-1 …

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