Endoskopisk vævudtagningsinstrument

摘要

The endoscope instrument includes a needle shaft (10) with a pointed needle end and a tissue removal opening (12) in the region of the needle end. An outer sleeve is axially movable on the needle shaft, and has a blade at its free end for cutting tissue that has entered the tissue removal opening. A suction channel (13) runs through the needle shaft and leads to the inside of the tissue removal opening. A device may be provided for fixing the outer sleeve relative to the needle shaft, in a state in which the shaft extends from the free end of the sleeve by a desired amount.