| 摘要 |
An injector for liquid medicine comprises a cylindrical body(1), first and second gasket (2,3) contained in a lumen of cylindrical body(1). The cylindrical body(1) is provided with a fluid inlet (13) and a fluid outlet(14) in opposite sides of the cylindrical body (1) with respect to the longitudinal axis thereof. Second gasket(3) is spaced from the first gasket(2) to form a fluid chamber(4) between them. The first gasket(2) is adapted to be moved by sliding along the inner wall of the cylindrical body (1) from a first position to the distal end (11) of cylindrical body (1) via a second position. The fluid inlet (13) is opened at a position closer to the distal end (11) of the cylindrical body (1) than the outlet (14) is. The first gasket (2) is stopped at a second position where the fluid chamber(4) is communicated with the fluid outlet (14) but prevented from fluid-communication with the fluid inlet(13). <IMAGE> |
