WORKING CHANNEL ELEMENT, ENDOSCOPE WITH A WORKING CHANNEL ELEMENT, AND METHOD FOR USING A WORKING CHANNEL IN AN ENDOSCOPE

摘要

The invention relates to a working channel element for an endoscope. The working channel element has a tubular shape, which has an inner circumference and an outer circumference and through which an instrument can be pushed. The working channel element is adapted to be temporarily inserted into a working channel of an endoscope with its distal side ahead.