PROBLEM TO BE SOLVED: To provide a syringe for a tourniquet equipped with an amount setting means of air injection which can inject the exact quantity of air by an easy operation.SOLUTION: The syringe for a tourniquet equipped with a means which makes a gasket stand still at the position of a designation or demands the stillness of a user includes: an outer cylinder 10 a gasket 20 which can slides in the outer cylinder 10 a pushing piece 30 which is inserted from the opening of the base end of the outer cylinder 10, and performs the moving operation of the gasket 20 and a cylindrical stopper 410 which projects toward the tip from the opening of the base end of the outer cylinder 10 inside the outer cylinder 10, and is integrally formed with the outer cylinder 10, wherein the pushing piece 30 is pushed in from the condition in which the rear end surface of the gasket 20 contacts with the tip of the cylindrical stopper 410 until an apical surface 204 of the gasket 20 contacts to a bottom 101 of the outer cylinder 10, thereby the exact quantity of air is injected into the tourniquet.COPYRIGHT: (C)2012,JPO&INPIT【課題】 簡単な操作で、正確な量の空気を注入することができる空気注入量設定手段を備えた止血器具用シリンジを提供する。【解決手段】 本発明のガスケットを指定の位置に静止させる、又は、使用者に静止を促す手段を備えた止血器具用シリンジは、外筒10と、外筒10内で摺動し得るガスケット20と、外筒10の基端の開口部より挿入され、ガスケット20を移動操作する押し子30と外筒10の内側に外筒10の基端の開口部から先端に向かって突き出た、外筒10と一体に設けられた棒状ストッパ410を備え、ガスケット20の後端面が棒状ストッパ410の先端に当接している状態から、ガスケット20の先端面204が外筒10の底部101に当接するまで押し子30を押し込んで、正確な量の空気を止血器具に注入する。【選択図】 図3