| 摘要 |
<p>An endoscopic device (8) provides improvements in the endoscopic working space by the use of a semi-tubular hood (3) with an arched top wall, self-supporting sidewalls that allow simultaneous manipulations of dissection, cutting, ligation, retraction, and the like, without requiring constant application of external force. The endoscopic device (8) enhances visualization, and reduces the need for cleaning the endoscopic lens (12).</p> |
