Scholly Fiberoptic Gmbh

Mathias Hornbach

Alexander Kohler

An endoscopy device () with an endoscope () and a camera control unit () is provided. The endoscope () has an endoscope shaft () and an endoscope head (), and the endoscope shaft () is made of a metallic material. Electronics () are arranged in the endoscope head () and are connected to an attachment cable (), and the electronics () and the attachment cable () are shielded by an electronics shield (). A galvanic barrier () is set up between the electronics shield () and the endoscope shaft () and couples the endoscope shaft () capacitively to the electronics shield ().

Endoscopy device

To improve the quality of transmission of a signal from an image sensor to a camera controller of an endoscopy arrangement by a cable while maintaining electrical safety standards, a first circuitry arrangement used to transmit the signal within the cable includes galvanic isolation from a second circuitry arrangement used to further process the signal within the camera controller. The galvanic isolation is formed downstream of a proximal end of the cable in the signal direction, and the first circuitry arrangement has a, preferably passive, impedance matching circuit, for example arranged at the proximal end of the cable or in the camera controller. This impedance matching circuit is configured to compensate signal distortions, which arise during the transmission of the signal that is produced by the image sensor to the camera controller, preferably such that a frequency spectrum of the signal produced by the image sensor can be reproduced.

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Waldkirch, Germany

Mathias Hornbach