| 摘要 |
PROBLEM TO BE SOLVED: To provide a medicine injection instrument which can perform the injection or combination of medicine through simple operation in a short time without generating any contamination. SOLUTION: A medicine injection instrument 1A is mainly composed of a main body 2 of vessel, gasket 3 which can be slid liquid-tightly along with the inner peripheral surface of this main body 2 of a vessel, plunger 4 for the slide operation of this gasket, cap 5, lock means 6 and seal member 7. The cap 5 is mounted at a port part 21 on the main body 2 of vessel and air-tightly seals the port part 21 through a sealing member 53. A space 25 surrounded with the main body 2 of vessel, gasket 3 and sealing member 53 is turned into pressure reduced state and solid medicines are stored. The lock means 6 is composed of a pair of projecting parts 61 protruded and formed around the outer periphery of axial part 41 on the plunger 4 and an engage member 62 mounted on the base end face of the main body of vessel and through the engagement of these components, the gasket 3 and plunger 4 are blocked from moving toward the top end. |
