PROBLEM TO BE SOLVED: To provide a kit preparation of a type that enables a simplified, quick, and easy injection without errors, and an injection syringe for a kit preparation that can achieve the kit preparation.SOLUTION: An injection syringe for a kit preparation includes: a medicinal solution chamber for keeping a medicinal solution in the inside injection needles having proximal portions that communicate with the medicinal solution chamber at one end of the medicinal solution chamber a cylindrical spring storing chamber for storing a coil spring in the inside on the other end side of the medicinal solution chamber and a spring compression releasing means which keeps the coil spring in a compressed state and releases the compression on the coil spring in the injection operation to supply the medicinal solution in the medicinal solution chamber to the injection needles by the coil spring.COPYRIGHT: (C)2014,JPO&INPIT【課題】簡易にかつ迅速に、誤りなく、かつ、手軽に注射できるタイプのキット製剤、及び、そのようなキット製剤を可能とするキット製剤用注射器を提供する。【解決手段】内部に薬液を保持する薬液室、前記薬液室の一方の端に、基部が前記薬液室に連通している注射針、前記薬液室の他方の端側に内部にコイルばねが収納された筒状のばね収納室、及び、前記コイルばねを圧縮した状態で保持しかつ注射動作時に前記コイルばねの圧縮を解除して前記コイルばねにより前記薬液室の前記薬液を前記注射針に供給させるばね圧縮解除手段、を備えているるキット製剤用注射器。【選択図】図1
