Cystoscopy is an endoscopic examination of the bladder using a specialized instrument called a cystoscope. A modern cystoscope is two-part and consists of an inner and outer part. The outer part is a sheath (a thin-walled metal shaft), while the inner part is a tube inserted into it, containing an optical system of miniature lenses and rods. In modern cystoscopes, the optical part and the housing are mounted separately, allowing the inner tube to be removed during diagnostic procedures to change the irrigation fluid without disturbing the cystoscope sheath. The cystoscope's optical system includes an objective lens, a rectangular prism, a set of lenses, and an eyepiece through which the physician views the image. There are several types of cystoscopes, depending on their purpose: viewing cystoscopes (for examining and irrigating the bladder), catheterization cystoscopes (for inserting catheters), and surgical cystoscopes (for performing various surgical procedures). An observation cystoscope has only an optical system and does not have various accessories for diagnostic or therapeutic procedures. It is used for examining the urethra and for inspecting and irrigating the bladder. A catheterization cystoscope has a channel for inserting catheters. Cystoscopes with two channels are available, allowing for simultaneous catheterization of both ureters. An surgical cystoscope is a single-ended catheterization cystoscope, but with slight differences. The optical tube of an surgical cystoscope is thinner, and the catheterization channel is wider. Various instruments (forceps, scissors, electrodes, etc.) are inserted into the bladder through this channel. ElePS offers a wide selection of high-quality cystoscopes [https://eleps.ru/katalog/tsistoskopiya-i-transuretralnaya-rezektoskopiya-optika/]. You can find prices and the full range of products in the catalogue on our website.