RAUSCHUNTERDRUECKUNGSEINRICHTUNG FUER EIN ENDOSKOP

摘要

In this invention, the spectral structure of the high-frequency current generated by the cauterizing power circuit for high-frequency incision and excision tools is set in the frequency interleave relationship with the comb-shaped spectral structure inherent in the picture signal formed by the solid pickup element, when an affected part of a subject is collected using the high-frequency incision and excision tools together with an endoscope with the solid pickup element. The picture signal, output form the solid pickup element, is supplied to the display unit via a comb line with the characteristics to meet its spectral structure to become the signal without the spectrum component (noise) caused by the high-frequency current from the said cauterizing power circuit.