In Germany, colorectal cancer is the third most common cancer after breast and prostate cancer. The early detection of cancer in gastroenterology creates considerable challenges in terms of the light source in examination equipment. To achieve optimal diagnostic and therapeutic outcomes, image quality must be of the highest priority. Special light scenarios are needed to provide superior visualization and differentiation of mucosal surfaces and vessel structures within the gastrointestinal tract. With its new Eluxeo® 700 series, Fujifilm has achieved a solution with help from a 4-channel light source and PURAVIS® glass optical fibers.
The LEDs emit blueviolet, blue, green and red light during the process. In the white light mode – through additive color mixing – four colored LEDs produce light which appears to be white. For the blue light imaging (BLI) mode, the shortwave blue-violet light is at the center of attention to help provide an optimal view of the tissue structures. In the linked color imaging (LCI) mode, red tones are enhanced through sophisticated color combinations to better differentiate distinct tissue types. Depending on which mode has been activated, the attending doctor obtains a number of views of the tissues under examination. Potential pathological lesions, inflammations or abnormalities are made visible. What is really special is the shortwave blue and blue-violet light which allows high contrasts, making vascular and mucosal structures visible since haema-globin absorbs light at 410 nm. The imaging CMOS chip is placed on the tip of the endoscope, allowing noise-free HD images at rates of up to 60 photos per second. At the heart of the Eluxeo® 700 series is the integrated LED light source, which, at the press of a button, emits assorted light modes. During the development phase, the product developers from Fujifilm were faced with the challenge of ensuring the most e¬ffcient transmission possible of the complex LED light modes at the end of the endoscope. When it came to evaluating assorted optical glass fibers, the environmentally friendly PURAVIS® optical glass fibers ultimately prevailed. Their primary strengths include the effcient transmission of white and near-UV light with very slight color deviations. “With PURAVIS® fibers, our innovative 4-channel LED light source can achieve its fullest potential,” a Fujifilm spokesman proudly notes.