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Endoscopy Light Pipe

The “light guide” in medical endoscopes is the core component that primarily directs and guides light. In flexible endoscopes, it specifically refers to the externally connected light guide—a flexible tube containing tens of thousands of glass optical fibers. This light guide efficiently transmits light from a cold-light source to the tip of the endoscope, effectively serving as a “pathway of illumination” for the endoscope.

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Product Description

The “light guide” in medical endoscopes is the core component that primarily directs and guides light. In flexible endoscopes, it specifically refers to the externally connected light guide—a flexible tube containing tens of thousands of glass optical fibers. This light guide efficiently transmits light from a cold-light source to the tip of the endoscope, effectively “paving the way and providing illumination” for the endoscope. Its application covers all flexible endoscopes that use external light sources, such as gastroscopes, colonoscopes, and bronchoscopes. In rigid endoscopes, by contrast, the term “light guide” more often refers to the rigid body of the endoscope itself. Inside this rigid structure, in addition to the light-guiding optical fibers, there are also imaging lenses or rod-lens systems integrated. The rigid body serves both as the structural backbone and as the optical pathway, making it widely used in minimally invasive surgeries—such as laparoscopy and arthroscopy—that involve entering body cavities through tiny incisions. Therefore, the “light guide” is the fundamental carrier upon which most endoscopes rely to achieve their lighting and imaging functions; its performance directly determines the clarity and brightness of the visual field.

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