| 摘要 |
An endoscope including a shaft having a distal end with a lens; a control section at a rear end of the shaft; and a working channel. The control section includes a frame having two working channel ports on opposite respective lateral sides of the control section, where each port forms a single aperture into the control section provided by an outwardly extending fitting. The fittings are configured to have an irrigation conduit connected thereto. The working channel ports are angled from rear to front in a forward and inward direction. The working channel has a rear end connected to both of the working channel ports such that an instrument can be positioned into the working channel through either of the two working channel ports. The working channel extends from the control section through the shaft as a single working channel for both of the working channel ports.
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