While the concept of precise medical care and minimally invasive surgical techniques are constantly developing and advancing, laser technology, which is highly efficient, precise and safe, is gradually becoming one of the important tools and means in the medical industry due to its unique advantages. Especially, the unique organizational interaction characteristics of 980nm and 1470nm diode lasers have enabled them to be widely applied in multiple clinical fields and have also demonstrated obvious advantages.

I. The Working Principle of 980nm Laser

The 980nm laser’s moderate absorption of hemoglobin and water enables it to both cut and solidify the cut wound, making it an efficient “cutting + coagulation” integrated tool.

1. Mechanism of action:

Energy absorption: When a 980nm laser is irradiated onto a tissue, its energy is absorbed by the two main color bases within the tissue: hemoglobin (blood) and water (the main component within cells).

Thermal effect: When light is absorbed, the energy it carries is rapidly converted into heat energy, causing the temperature of the local tissue to rise sharply all at once.

Organizational effect:

– When the temperature reaches 60-70°C, protein denaturation and coagulation occur, achieving the purpose of hemostasis and tissue sealing.

– When the temperature reaches 100°C, the water within the tissue cells will boil and vaporize, generating cutting and ablation (removal) effects.

2. Features

Moderate penetration depth: 980nm has a deeper penetration depth compared to 1470nm (approximately a few millimeters), thereby exerting a certain influence on slightly deeper tissues.

Balance: Due to its excellent absorption of both water and hemoglobin, it can achieve effective coagulation and hemostasis during the cutting process, making it highly suitable for surgeries that require both operations simultaneously.

II. The Working Principle of 1470nm Laser

The 1470nm laser has an extremely high water absorption characteristic. The laser energy is rapidly absorbed by the surface layer of the tissue, and its effect depth is shallow, making it a precise and superficial vaporization and coagulation tool.

1. Mechanism of action:

Energy absorption: 1470nm is one of the absorption peaks of water. The laser energy is absorbed in large quantities by the water within the surface cells almost the moment it comes into contact with the tissue.

Thermal effect: After light energy is absorbed by tissues, it is instantly converted into thermal energy, but the thermal effect disappears at the extremely surface layer, so its range of action is precisely superficial.

Organizational effect:

– Rapid vaporization: The water in the tissue absorbs the energy of the laser and rapidly boils and vaporizes within a short period of time. The steam pressure inside the cells suddenly increases, causing the cells to rupture, thereby achieving efficient and precise vaporization and cutting of the tissue.

– Limited heat diffusion: As energy is “exhausted” at the extremely surface layer, there is very little heat conduction to the surrounding tissues, thus the area of thermal damage is very small.

2. Features

Extremely shallow penetration depth: Its effect is extremely superficial, often functioning well in tissues of less than 1 millimeter, and its destructive power to surrounding non-target tissues is minimal.

Precision and safety: With its precise therapeutic effect on the tiny lesion areas around nerves and blood vessels while maximizing the protection of adjacent healthy tissues, it has achieved remarkable safety.

High-efficiency coagulation: Despite its highly efficient cutting ability, its thermal coagulation effect is still concentrated on the surface layer of the tissue, providing reliable hemostasis while reducing deep thermal damage.

III. Specific Applications

Treatment of vascular diseases

980nm laser is suitable for the coagulation treatment of varicose veins and has good penetration and closure effects.

Relying on its unique high water absorption characteristic, the 1470nm laser is particularly suitable for fine welding of blood vessels and treatment of capillaries, etc.

Urology and Otorhinolaryngology

In surgeries such as prostatectomy and vocal cord polyp ablation, dual-wavelength lasers can not only efficiently cut tissues but also immediately stop bleeding, thereby playing a good role in controlling postoperative edema and complications.

Plastic Aesthetics

1470nm laser rejuvenation can promote the regeneration of collagen, improve skin texture and elasticity. 980nm can be used for deeper tissue remodeling.

Oral Surgery

980nm laser can effectively remove infected periodontal tissues, treat oral ulcers, etc., achieving less bleeding and pain. The 1470nm laser can be applied to water-rich tissues, enabling rapid and accurate cutting, reducing bleeding and postoperative complications.

VI. RealLight’s 980nm&1470nm dual-wavelength diode laser

The 980&1470 dual-wavelength diode laser launched by RealLight integrates two wavelengths into one, with a power output of up to 15W. This dual-wavelength diode laser features a replaceable window design. Even if contamination or damage occurs due to operational accidents, it can be quickly and cost-effectively replaced by users, greatly reducing maintenance costs and time, and ensuring the continuous operation of the equipment.

RealLight has always been committed to providing users with high-quality and high-performance laser products as its unremitting pursuit. We provide users with comprehensive technical support and perfect after-sales service throughout the process, completely eliminating their worries during use. If you need further product information or consult on the latest solutions for the industry, you can also directly contact our sales team. We will provide you with the most comprehensive support and services.

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