PROBLEM TO BE SOLVED: To provide a liquid administration tool capable of suppressing the rotation of a needle tube, and reducing a burden on a living body.SOLUTION: A liquid administration tool 10 includes: a syringe 60 that can accommodate liquid inside a needle tube 66 that can be communicated with the inside of the syringe 60 an internal structure 40 that holds the syringe 60 a cover member 30 which is energized in the tip direction with respect to the internal structure 40, surrounding the outer periphery of the needle tube 66, and in which an opening 38 is formed on the tip side so that, by moving in the base end direction with respect to the internal structure 40, the needle tube 66 is caused to protrude from the opening 38 in the tip direction and a grip part 20 formed so as to cover the syringe 60, the internal structure 40, and at least part of the cover member 30, which, by moving in the tip direction with respect to the internal structure 40, discharges liquid in the syringe 60 from the needle tube 66. The internal structure 40 can rotate with respect to the grip part 20, and includes a support part 118 for supporting the syringe 60 in a relatively rotatable manner.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】針管の回転を抑制して生体への負担を低減できる液体投与具を提供する。【解決手段】内部に液体を収容可能なシリンジ60と、シリンジ60の内部と連通可能な針管66と、シリンジ60を保持する内部構造体40と、内部構造体40に対して先端方向へ付勢されて針管66の外周を囲み、先端側に開口部38が形成され、内部構造体40に対して基端方向へ移動することで針管66を開口部38から先端方向へ突出させるカバー部材30と、シリンジ60、内部構造体40およびカバー部材30の少なくとも一部を覆うように形成され、内部構造体40に対して先端方向へ移動することでシリンジ60の内部の液体を針管66から吐出させる把持部20と、を有する液体投与具10であり、内部構造体40が、把持部20に対して回転可能であり、シリンジ60を相対的に回転可能に支持する支持部118を備える。【選択図】図2
