In 2014, China made significant progress in the development of advanced laser treatment technologies. A new short-pulse, high-energy COâ‚‚ laser system was introduced, offering precise surgical cutting with minimal damage to surrounding tissues. This innovation has drawn considerable attention from medical professionals and manufacturers, especially in cosmetic procedures such as skin resurfacing.
The development of Nd-YAG laser systems also saw major advancements, particularly with the emergence of semiconductor-pumped versions. These new lasers are expected to significantly increase the accessibility and efficiency of Nd-YAG treatments. During the 1990s, breakthroughs in high-power lasers led to the rise of excimer lasers, known for their short wavelengths and high energy output. These lasers show great potential in various medical applications.
Titanium-doped sapphire (Ti:sapphire) lasers have become a focus of research in recent years. Their tunable nature makes them a strong alternative to traditional dye lasers. Meanwhile, Ho:YAG lasers are gaining interest due to their reduced thermal damage, potentially replacing Nd:YAG in some applications. Erbium lasers (Er:YAG), known for their efficient cutting and compatibility with optical fibers, are also seen as a possible replacement for COâ‚‚ lasers.
Free-electron lasers represent a cutting-edge technology, capable of adjusting their wavelength over a broad range. This flexibility makes them highly suitable for diverse medical uses. Semiconductor lasers are becoming the primary light source in medical devices due to their compact size, low cost, high efficiency, long lifespan, and simple power supply. Their development is paving the way for more compact and affordable medical laser systems.
In low-power laser applications, portable semiconductor lasers have been developed abroad for therapeutic purposes, such as acupoint stimulation. In China, pulsed YAG lasers have also been used for weak laser therapy, particularly in intravascular irradiation (ILIB). This method has shown promising results in treating a wide range of conditions and has attracted global attention. However, further research is needed to fully understand the mechanisms, long-term effects, and to develop more automated and intelligent systems for this treatment.
Beyond lasers, magnetic therapy equipment has also evolved. Traditional devices like alternating, gyromagnetic, and pulsed magnetic therapy machines continue to be widely used. The trend is moving toward larger, all-in-one health care systems. High-intensity magnetic fields are now being explored for cancer treatment, supported by advances in magnetism and superconductor technology.
High-temperature superconductors can generate stable magnetic fields that may help manage emotional disorders, such as depression. Pulsed magnetic fields are also being studied for their potential in treating drug addiction, offering a non-pharmaceutical alternative with fewer side effects.
Ultrasonic treatment equipment is another area seeing rapid development. By leveraging the unique properties of sound waves, a variety of therapeutic tools have been created, offering non-invasive and effective solutions for various medical conditions.
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