| 摘要 |
An endoscope has an outer shaft, in which an optical channel receiving an optical system is arranged, wherein in the outer shaft, further, a channel for receiving a working element, at least one supply channel extending longitudinally for a medium and at least one discharge channel extending longitudinally for the discharge of a medium, the discharge being separated from the supply, are arranged. The optical channel and the at least one supply channel and/or the at least one discharge channel are configured as chambers of a profiled shaft, which is chambered in its cross section and received in the outer shaft.
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