| 摘要 |
A tubular guide suitable for use as an operating channel for the passage of surgical instruments in an inch-worm-type locomoted endoscopic instrument; this guide is fixed to the ends of the central body of the endoscopic instrument and has an elastic and corrugated intermediate portion so as to follow the elongations and the contractions of the central body of the endoscopic instrument without creating an obstacle to the passage of instruments. |
