This liquid administration device (10) is provided with: a tube body (40) a double-ended needle (2) a gasket (3) a liquid (Q) an operation member (11) a restricting means (30) having a restricting section (8) that displaces between a restricting position that restricts the operation of the operation member (11) and a released position that releases the restriction, and a coil spring (70) that energizes the restricting section (8) and a cover member (6) that can move between a first position covering the tip-end needle tip (21) of the double-ended needle (2) and a second position exposing the tip-end needle tip (21). In an unused state, the cover member (6) is in the first position and the restricting section (8) is restricting the operation of the operation member (11) at the restricting position, and when the cover member (6) has been moved to the second position from the unused state, the cover member (6) displaces the restricting section (8) to the released state, releasing the restriction, and thereby enabling the operation of the operation member (11).La présente invention concerne un dispositif dadministration de liquide (10) qui comprend : un corps de tube (40) une aiguille à double extrémité (2) un joint (3) un liquide (Q) un composant opérationnel (11) des moyens de restriction (30) ayant une section de restriction (8) qui se déplace entre une position de restriction qui restreint le fonctionnement du composant opérationnel (11) et une position libérée qui libère la restriction, et un ressort hélicoïdal (70) qui applique une énergie à la section de restriction (8) et un composant de couverture (6) qui peut se déplacer entre une première position couvrant la pointe daiguille dextrémité de pointe (21) de laiguille à double extrémité (2) et une deuxième position exposant la pointe daiguille dextrémité de pointe (21). Dans un état inutilisé, le composant de couverture (6) est dans la première position et la section de restriction (8) restreint laction du
