| 摘要 |
PCT No. PCT/EP87/00163 Sec. 371 Date Dec. 10, 1987 Sec. 102(e) Date Dec. 10, 1987 PCT Filed Mar. 23, 1987 PCT Pub. No. WO87/06141 PCT Pub. Date Oct. 22, 1987.The device comprises a cylindrical ampoule which is closed at one end and opened at the other end. The ampoule has a relatively large circular cylindrical zone adjacent the closed end and a relatively small cylindrical zone disposed between the relatively large cylindrical zone and the open end of the ampoule. A piston valve engages the open end of the ampoule to provide sealing engagement and dispensing of the liquid contents when desired. An intermediary stopper engages the relatively small cylindrical zone, when the stopper is in a storage position, to divide the ampoule into first and second storage compartments. The stopper is shaped to provide tight sealing engagement with the relatively small circular cylindrical zone while providing at least one opening, between its lateral surface and the interior wall of the ampoule, for allowing passage and mixing the substances contained in the compartments, when it is positioned in the relatively large circular cylindrical zone. |
