Medical endoscopic instrument

An endoscopic instrument, comprising a shaft, an endoscope optical system arranged in said shaft, said endoscope optical system having a distal front face, and a working element arranged in said shaft, wherein said shaft serves to supply an irrigation fluid into an operation or application area, wherein flow-influencing means are provided such that said irrigation fluid reaches in front of said front face of said endoscope optical system, and wherein said flow-influencing means are provided on said working element and comprise several flow elements which are arranged axially distributed on said working element.

An endoscopic instrument, comprising a shaft, an endoscope optical system arranged in said shaft, said endoscope optical system having a distal front face, and a working element arranged in said shaft, wherein said shaft serves to supply an irrigation fluid into an operation or application area, wherein flow-influencing means are provided such that said irrigation fluid reaches in front of said front face of said endoscope optical system, and wherein said flow-influencing means are provided on said working element and comprise several flow elements which are circumferentially distributed on said working element.

An endoscopic instrument, comprising a shaft, an endoscope optical system arranged in said shaft, said endoscope optical system having a distal front face, and a working element arranged in said shaft, wherein said shaft serves to supply an irrigation fluid into an operation or application area, wherein flow-influencing means are provided such that said irrigation fluid reaches in front of said front face of said endoscope optical system, and wherein said flow-influencing means are provided on said working element and comprise several flow elements which are arranged axially distributed on said working element, wherein said working element comprises a forked section in a distal region, wherein two legs of said forked section run axially along the sides of said endoscope optical system and run together in a proximal unitary section, which extends axially adjacent to said endoscope optical system, and wherein said working element comprises a bend in the transmission region from said forked section to said unitary section, which lies axially in a region of said front face of said endoscope optical system in at least one axial working position of said working element.

An endoscopic instrument, comprising a shaft, an endoscope optical system arranged in said shaft, said endoscope optical system having a distal front face, and a working element arranged in said shaft, wherein said shaft serves to supply an irrigation fluid into an operation or application area, wherein flow-influencing means are provided such that said irrigation fluid reaches in front of said front face of said endoscope optical system, and wherein said flow-influencing means are provided on said working element, wherein said working element is an electrode carrier which carries an electrode supplyable with HF power.