Читать книгу Small Animal Laparoscopy and Thoracoscopy онлайн

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A fiber optic cable transmits the light from the source to the telescope. It consists of a bundle of thousands of optical glass fibers ranging in size from 30 to several hundred microns, surrounded by a protective jacket, and equipped with metal fittings at each end. Cables with additional armoring last longer than ones without this protection. The cable is inserted into the light source at one end and attached to the light post of the telescope at the other end. Light cables are available in various styles and diameters, depending on the diameter of the telescope. Correct matching prevents overheating or under illumination. Generally, a smaller scope requires a smaller light cable. The most common cable used with 5‐mm telescopes for small animal MIS is 3.5 mm in diameter and 300 cm long (ssss1) [1–5]. The extended length 300 cm light cables provide better ergonomics since in most laparoscopic and thoracoscopic procedures a minimum of 1.5 m distance exists between the operating table and the surgical field. A free range of motion increases the surgeon's ability and ergonomics resulting in faster and safer procedures and also avoids excess drag to the imaging equipment setup.