Endoscope for surgical use has curving unit with curvature retaining lock using locking rings to prevent straightening if control line breaks.

摘要

An endoscope (10) with end (18) curving unit knob (36) pulling a line in a guide (14) with curvature retaining lock (40) on the control. unit (12) base operating when the curving unit is broken and locking the curvature control lines between rings in the base.