Endoscopy is a method of medical examination of body cavities and internal hollow organs using special optical instruments. Medical endoscopes [https://eleps.ru/katalog/po-vidam-produktsii-optika/] are flexible or rigid tubes equipped with an optical system that provide visualization of hard-to-reach internal organs and create the possibility of performing minimally invasive surgeries. Devices and equipment for endoscopy allow using the following diagnostic methods and surgeries: - fibroscopy; - laparoscopy; - esophagoscopy; - colonoscopy; - rhinoscopy; - athroscopic examination; - gastroscopy; - bronchoscopy; - cholangioscopy; and other medical examinations necessary for an accurate diagnosis, as well as the detection and treatment of diseases. Equipment for endoscopy is an effective tool for clinics of various formats, healthcare institutions, diagnostic centers and other medical institutions.