JPH0440602U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の案内装置使用状態説明図、
第２図は内筒管の常温下における状態の断面図、
第３図は内筒管の先端が拡開した状態の断面図、
第４図は拡開した先端を元に戻す手段の一例を示
す断面図である。 １……案内装置、２……外套管、３……内筒管
、３Ａ……内筒管の先端、５……内視鏡、６……
挿入部、７……アングル部。 Fig. 1 is an explanatory diagram of the usage state of the guide device of this invention.
Figure 2 is a cross-sectional view of the inner tube at room temperature;
Figure 3 is a cross-sectional view of the inner tube with its tip expanded.
FIG. 4 is a sectional view showing an example of means for returning the expanded tip to its original state. DESCRIPTION OF SYMBOLS 1... Guide device, 2... Outer tube, 3... Inner tube, 3A... Tip of inner tube, 5... Endoscope, 6...
Insertion part, 7...Angle part.

Claims (1)

【実用新案登録請求の範囲】 体表から体内に挿入する外套管と、この外套管
に挿入して先端が外套管先端から突き出るととも
に内視鏡のアングル部を含む挿入部を体外から体
内へ挿入するときの通路となる内筒管とから成る
内視鏡の挿入部案内装置において、 内筒管の外套管から突き出る先端を体内温度に
より外側に拡開する形状記憶合金から形成したこ
とを特徴とする内視鏡の挿入部案内装置。[Scope of Claim for Utility Model Registration] A mantle tube inserted into the body from the body surface, and an insertion section inserted into the mantle tube whose tip protrudes from the tip of the mantle tube and includes an angled portion of an endoscope from outside the body into the body. An endoscope insertion guide device comprising an inner cylindrical tube that serves as a passage when inserting the endoscope, is characterized in that the tip of the inner cylindrical tube protruding from the outer tube is made of a shape memory alloy that expands outward depending on body temperature. Endoscope insertion guide device.