| 摘要 |
<p>An endoscope comprising a flexible tube (10) having a proximate end portion (27) in communication with a control unit (8), a body portion and a distal end portion (10 min ), the tube containing light transmitting means (20) whereby objects outside the free end of the distal end portion may be illuminated and viewed through the control unit; a further flexible outer tube (9) being co-axially slideable about the body and distal end portion (10 min ) of the inner tube (10) is provided with means (11) guarding the distal end of the inner tube whilst allowing relative incremental axial movement of the inner and outer tubes without the risk of tissue being trapped between them.</p> |
