Guide for medical insertion tool

Abstract

One aspect of the present invention relates to a guide (1) for a medical insertion tool, said guide including a tubular body (2) that is placed in a body from the nose or mouth to arrival at an interior section of the gastrointestinal tract, and allows a medical insertion tool to be inserted into and removed from the lumen thereof, wherein within the tubular body (2), in an insertion-side distal end section (24) and a section (23) that is positioned in the same location as at least the pharynx and the upper esophageal sphincter when placed in the body, or in the entire length in the lengthwise direction, there is flexibility such that the cross-sectional shape deforms in a flat manner due to pharyngeal pressure and esophageal pressure when the tubular body is placed in the body, or the cross-sectional shape is formed in a flat manner in advance, and there is kink-resistance. The tubular body (2) preferably includes at least one highly kink-resistant region (2a) that extends along the entire length thereof in the lengthwise direction and compressively deforms in the lengthwise direction less readily than a region neighboring the same in the circumferential direction.