Surgical instrument, procedure for the production of a surgical instrument and use of a rotary joint for the training of a cutting tool of a surgical instrument

摘要

The invention concerns a surgical instrument (1) for separating and removing a bioptate, where in a shaft (2) a suction duct (3) is formed to suction the bioptate from a distal area (4) towards a proximal area (5) and/or where in one or the distal area (4) of the shaft (2) a cutting tool (7) is formed which is a fixed cutting part (8) and one around one by a rotary joint (10) has a trained axis of rotation, with an adjustable cross-section (8) relative to the fixed section (9);where a cross-section (6) of the suction duct (3) extends from the distal area (4) to the proximal area (5) and/or where the rotary joint (10) is formed by two fixing elements (11), the fixing elements (11) being introduced from the inside to the outside.