| 摘要 |
The invention relates to a safety device for injecting a medicinal product, such as a lyophilized product, comprising a syringe body (9), a protective casing (19) and locking members (22, 23) for maintaining the syringe body (9) and the protective casing (19) in an injection position. According to the invention, this device comprises members (40) which immobilize the locking members (22, 23) and which can be displaced between a natural initial position, called the deactivation position, in which each locking member (22, 23) is immobilized in a locked state, and a position, called the activation position, which allows each locking member (22, 23) to be switched to an unlocked state. Moreover, actuating members (46), positioned on the trajectory of an intermediate shoulder (32) formed on the plunger rod (6) of the injection device, are designed to bring about a displacement of the blocking members from their deactivation position to their activation position during the ascending movement of the plunger rod.
|
