| 摘要 |
A hand-operable system for ejecting a fluid composition into an eye, the system comprises: (1) a container having a container opening and containing the fluid composition; (2) a double-acting pump mechanism securely disposed over the container opening; and (3) an actuator that is disposed over, and extends radially outward from, said pump mechanism, for actuating the pump mechanism by applying a force thereon, wherein said pump mechanism comprises a passage for said fluid composition, and said passage is positively sealed off when the application of said force is discontinued. |
