In 2014, a new generation of laser treatment equipment was developed in China, marking a significant advancement in medical laser technology. This innovation focused on short-pulse, high-energy COâ‚‚ lasers, which offer precise surgical cutting with minimal damage to surrounding tissues. These devices have gained considerable attention, especially in cosmetic procedures like skin resurfacing, where precision and safety are crucial.
The development of Nd-YAG laser systems has also seen major progress, particularly with the emergence of semiconductor-pumped models. These advancements are expected to significantly increase the accessibility and efficiency of Nd-YAG lasers in clinical settings. During the 1990s, breakthroughs in high-power lasers led to the rise of excimer lasers, known for their short wavelengths and high power, making them ideal for various medical applications.
Titanium-doped sapphire (Ti:sapphire) lasers have become a key area of research globally over the past decade. Their tunable nature allows them to replace traditional dye lasers in a wide range of applications. Meanwhile, Ho:YAG lasers, with their low thermal damage, show promise in replacing Nd:YAG lasers in certain procedures. The erbium laser (Er:YAG), noted for its efficient cutting and compatibility with optical fibers, is also being considered as a potential replacement for COâ‚‚ lasers.
Free-electron lasers represent another high-tech advancement, offering a wide range of adjustable wavelengths. This makes them highly versatile for medical use, covering a broad spectrum of therapeutic needs. Semiconductor lasers, due to their compact size, affordability, efficiency, and long lifespan, are becoming the primary light source in medical laser devices. Their advantages are driving improvements in the design and functionality of medical instruments, paving the way for more compact and accessible laser technologies.
In the field of low-power lasers, developments such as milliwatt-class pocket-sized semiconductor lasers have been introduced abroad for applications like laser stimulation. In China, pulsed YAG lasers have been used for acupoint irradiation, while weak laser intravascular irradiation (ILIB) has drawn attention for its broad therapeutic potential and effectiveness. However, further research is needed to fully understand the mechanisms behind these treatments, evaluate long-term outcomes, and enhance the automation and intelligence of related devices.
In addition to laser technology, magnetic therapy equipment has also evolved. Traditional devices such as alternating, rotating, and pulsed magnetic therapy machines are now being developed into larger, more comprehensive health care systems. High-intensity magnetic fields are increasingly being explored for treating malignant tumors. Advances in magnetic field and material physics are opening up new possibilities for medical applications.
High-temperature superconducting magnetic devices can be placed in specific locations for extended periods, with changing magnetic fields that may help regulate emotions, potentially aiding in the management of depression. Pulsed magnetic fields are also being studied for their possible role in treating drug addiction, offering a non-pharmaceutical alternative with fewer side effects.
Ultrasonic treatment equipment continues to evolve by leveraging the unique properties of sound waves. These devices are being developed for a variety of therapeutic purposes, demonstrating the ongoing innovation in non-invasive medical technologies.
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