Abstract
SummaryClear vision is an essential requirement for safe endoscopic surgery. Sudden haemorrhage or the steam-creating application of electrocautery and lasers frequently leads to the restriction or complete loss of the endoscopic vision with consequent withdrawal and time-consuming cleaning of the optic. This deficiency in the cleaning properties of the endoscope can be hazardous especially in critical operative situations requiring the full attention of the surgeon. In co-operation with Wiest Co., Munich, Germany, a visualization stabilizing system for endoscopic surgery has been developed. The system consists of a 12 mm multifunctional tube into which the 10 mm endoscope can be inserted. Integrated in this tube are channels with small nozzles at their tips for irrigation and drying of the front glass of the optic by means of saline solution and CO2 gas. Blood and vapour can easily be washed away and the remaining liquid layer or drops at the tip of the endoscope can be blown off to avoid optical distort...
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