PROBLEM TO BE SOLVED: To improve usability without forcing a user to perform a complicated operation since a liquid-drug is injected to a liquid-drug administration device by moving a pusher after the liquid-drug is extracted from a liquid-drug storage container into the outer cylinder of a cylinder with the use of a pump.SOLUTION: A liquid-drug filling device includes a syringe 510 and a pump 525. The syringe 510 includes: an outer cylinder 511 configured to allow a distal end connection part 511B to communicate with a liquid-drug administration device 2 for administering the liquid-drug into a living body to be arranged downward and to have side surface connection parts 511D and 511E where holes to communicate with an internal space and an outside are arranged at prescribed height positions on the side surfaces and a pusher 512 to be tightly slid on the inner wall of the outer cylinder 511. The pump 525 sucks out the liquid-drug from a vial 570 communicating with the side surface connection part 511D. When the pump 525 is driven to extract a prescribed amount of liquid-drug into the outer cylinder 511 and to block communication between the pump 525 and the vial 570 and between the side surface connection parts 511D and 511E, the pressure 512 is moved toward the distal end connection part 511B and the liquid-drug extracted into the outer cylinder 511 is injected into the liquid-drug administration device 2. Thus, a user is prevented from being forced to perform a complicated operation.COPYRIGHT: (C)2013,JPO&INPIT【課題】本発明は、使い勝手を向上する。【解決手段】本発明は、薬液を体内に投与する薬液投与装置2に連通される先端接続部511Bが下方を向くように配され、側面の所定高さの位置に内部空間と外部とを連通する孔が設けられた側面接続部511D及び511Eを有する外筒511、及び外筒511の内壁に密着してスライドする押し子512からなるシリンジ510と、側面接続部511Eに連通され、側面接続部511Dに連通されるバイアル570から薬液を吸い出すポンプ525とを有し、ポンプ525が駆動され、外筒511内に所定量の薬液が引き出され、ポンプ525及びバイアル570と側面接続部511D及び511Eとの連通が塞がれた状態で、押し子512を先端接続部511B側に移動させ、外筒511内に引き出された薬液を薬液投与装置2に注入するので、使用者に煩雑な操作を強いることがない。【選択図】図19
