PROBLEM TO BE SOLVED: To provide a drug solution continuous injection instrument, and a drug solution continuous injection instrument including drug solution, in which temporary rise of flow speed is less likely to occur immediately before completion of injection of drug solution, and flow quantity precision is excellent along the whole injection.SOLUTION: The instrument is provided with a body container having an open surface on one surface, a lid body engaged with the open surface of the body container, and a balloon installed on the lid body, and provided inside the body container. The lid body is provided with a drug solution injection part that is continuous with the inside of the balloon, and a drug solution feeding part to feed the drug solution stored in the balloon by shrinking force of the balloon. The balloon is repeatedly drawn over a yielding point prior to its use.COPYRIGHT: (C)2010,JPO&INPIT【課題】本発明の目的は薬液投与終了間際に流速の一過性の上昇が起きにくく、且つ注入全般に渡って流量精度に優れたな薬液持続注入器具及び薬剤入り薬液持続注入器具を提供することである。【解決手段】一方の面に開放面を有する本体容器と、該本体容器の開放面に嵌合する蓋部本体と、該蓋部本体に取付けられ前記本体容器内部に備えられたバルーンと、から構成され、前記蓋部本体には前記バルーン内に連通する薬液注入部と、該バルーン内に注入貯留された薬液を前記バルーンの収縮力で送出する薬液送出部とを備え、前記バルーンは、使用前に繰り返し降伏点以上に延伸されている。【選択図】図3
