Medical and surgical knives and cutters for cutting human or animal tissue and organs; Medical apparatus and instruments for use in surgery, namely, medical apparatus and instruments for excision, consisting of a hydrodynamic therapy equipment and a single-use hydrodynamic cutter head; Surgical and medical apparatus and instruments for use in general surgery, namely, medical apparatus and instruments for excision, consisting of a hydrodynamic therapy equipment and a single-use hydrodynamic cu...