TWO-COMPONENTS MIXING PREFILLED INJECTOR

PURPOSE:To provide the two-components mixing prefilled injector which facilitates assembly, improves the efficiency of an assembly operation, enables the use of arbitrarily selected injection needles and enables sterilization of a dissolving liquid after filling. CONSTITUTION:A chemical container 1 and a dissolving liquid container 2 are fluid-tightly connected coaxially. A liquid chemical injection port 11 at the front end of this chemical container 1 is held hermetically sealed by a rubber cap 12 and the opening at the rear end is hermetically sealed by a first gasket 14. A bypass groove 13 is formed longitudinally in proximity to this first gasket 14. The openings at the front end and rear end of the dissolving liquid container 2 are respectively hermetically sealed by a second gasket 21 and a third gasket 22. A chamber 23 in which the dissolving liquid is housed and a chamber 18 in which a dry prepn. is housed are communicated with each other via the bypass groove 13 when the entire part of the first gasket 14 and the second gasket 21 enters the inside of the bypass zone 15 in the tight contact state.