| 摘要 |
An endoscope for visualizing and operating upon a surgical site within a human body employs an elongated tubular body adapted to be inserted through bodily passages so that the distal end is adjacent the surgical site. The body has a flexible section, at least proximal to the distal end, and manually adjustable bending controls at the proximal end may be manipulated to impose bending forces on the distal end to steer the distal end to the surgical site. A fluid turbine supported for rotation adjacent the distal end is powered by fluids pumped through a passage so as to rotate the turbine. The various cutters and debriding tools may be attached to the distal ends so that they are rotated by the turbine.
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