FLEXIBLE AND EXTENSIBLE TUBULAR GUIDE AND MANUFACTURE PROCESS THEREOF

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 is described. The 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.

主权项

1. A flexible and extensible tubular guide comprising
a tubular member, wherein said tubular member has an intermediate portion which is evenly corrugated in such a way to allow the guide to extend and contract, an elastic element axially arranged in said tubular member, said tubular member being further provided with two end portions fixed to said elastic element.