Читать книгу Small Animal Laparoscopy and Thoracoscopy онлайн

122 страница из 232

ssss1 Telescope viewing angles. (A). 0°. (B). 30°.

Source: © KARL STORZ SE & Co. KG, Germany.

ssss1 ENDOCAMELEON^® telescope with variable viewing angle, adjusted by turning the collar on the eyepiece.

Source: © KARL STORZ SE & Co. KG, Germany.

These variable angle scopes are available in 4 and 10 mm diameter, for different size patients, the smaller size also being used for arthroscopy in humans. These newer scopes provide the surgeon with the ability to evaluate more thoroughly and maneuver the scope more easily, with an emphasis on thoracoscopic surgery. A recent study conducted at NCSU College of Veterinary Medicine demonstrated the advantages of the variable‐angle rigid scopes by providing an optimal alternative to circumvent the visual impediments of lung expansion during thoracoscopy when one‐lung ventilation is not feasible [10]. This study reveals that the use of an ENDOCAMELEON^® significantly shortens exploratory thoracoscopic procedures, compared to the use of a standard fixed 30° angle telescope, while ventilating both lungs. The variable‐angle lens was also found to minimize iatrogenic injuries due to reduced maneuvering in the cavity compared to standard scopes [10–12].