| 摘要 |
PROBLEM TO BE SOLVED: To prevent contamination and to prevent the double use of a needle pricking hole and liquid leakage in spite of the presence of a time interval between a mixing and injecting operation and a dosing operation by forming a aperture of a size to allow a needle pricking operation in a pull-off part and sealing this aperture with a peel seal before use. SOLUTION: The pull-off part 4 is formed in the central region enclosed by a bulging part 3 at the top surface of a cap body 1 in such a manner as to be made approximately concentric with the pull ring 5. The aperture 6 which exposes part, for example, the central region, of the top surface of the rubber plug 2 to the outside is formed in this pull-off part 4. The size of the aperture 6 is not restricted unless the size is too large if within a range to allow the needle pricking at the time of mixing and injecting. The aperture 6 is sealed by sealing the top surface of the rubber plug 2 with the peel seal 7 before use, by which the aperture is shut off from the outdoor air. The peal seal 7 is provided with a knob part 8 for peel-off operation. As a result, the outdoor air is shut off before use and the contamination and liquid leakage may be prevented. |
