Release date: 2007-05-31
A groundbreaking development in medical laser technology has emerged, with researchers utilizing optical fibers to deliver laser beams during surgical procedures. This innovation has led to the creation of a new diode laser specifically designed for soft tissue surgery, capable of being transmitted through an extremely thin optical fiber. This advancement is expected to revolutionize minimally invasive surgical techniques.
Snoring, often considered a nuisance, can also be a sign of more serious health issues. Traditional treatments for snoring typically involve medication or surgical removal of parts of the upper airway, such as the uvula and soft palate. These procedures are usually performed using a carbon dioxide laser, which requires the use of external mirrors to guide the beam into the correct position within the patient’s mouth. This method can be cumbersome and less precise.
Researchers at the Fraunhofer Institute for Laser Technology (ILT) in Aachen and the Fraunhofer Institute for Solid State Physics (IFWS) in Freiburg have developed a new diode laser that operates at the ideal wavelength for this application. According to Dr. Konstantin Boucke, project manager at ILT, “This laser can be transmitted through a very fine optical fiber, allowing surgeons to easily insert it into the patient’s mouth without the need for complex positioning equipment.†The key feature of this laser is its 2-micron wavelength, which is particularly effective for soft tissue procedures.
Boucke explains, “At this wavelength, the laser light is efficiently absorbed by biological tissues, minimizing penetration depth and offering greater precision during incisions.†Additionally, the laser can switch to a second mode that emits light in the 800–980 nm range, which is highly effective for stopping bleeding. This dual functionality makes the laser suitable for a wide range of soft tissue surgeries, including procedures like prostatectomy, where the fiber can be inserted into the urethra.
To achieve this specific wavelength, the research team had to work with unconventional materials, such as gallium germanium compounds, along with specialized optical components. Measuring the laser output at 2 microns is challenging, as standard cameras are not sensitive to this wavelength, requiring advanced detection methods.
This breakthrough represents a significant step forward in laser surgery, offering improved precision, reduced invasiveness, and enhanced control for medical professionals. As the technology continues to evolve, it may lead to even broader applications in various surgical fields.
— Information from: Meditech Medical Devices Network
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