PROBLEM TO BE SOLVED: To provide a withdrawal prevention tool for medical insertion tubes having no influence on withdrawal of the insertion part of a tube by enabling a spare length part to expand even if the insertion tube expands due to withdrawal.SOLUTION: A withdrawal prevention tool for medical insertion tubes includes a spare length means for giving a medical insertion tube attached to a patient an expandable spare length. In the tool, the spare length part is expanded against a withdrawal stress by an excessive length means, thereby preventing the stress to be applied to a part of the patient to which the insertion tube is attached and the insertion tube is hardly made to be withdrawn.COPYRIGHT: (C)2013,JPO&INPIT【課題】本発明の課題は、引き抜きによる挿管の伸びがあっても、予備長部分が延びることで管の挿入部分の引き抜きには影響しない医療用挿管引き抜き防止具を提供することである。【解決手段】本発明の医療用挿管引き抜き防止具は、患者に備える医療用挿管に伸縮自在の予備長を与える予備長手段を有し、引き抜き応力に対して予備長手段による予備長部を伸ばすことで挿管の患者への適用部には応力が及ばないようにして引き抜き状態に至り難くしたことを特徴とする。【選択図】図1
