| 摘要 |
An activation-based injection device includes an activation unit ( 1, 2, 3 ), a vial unit ( 5 ) containing a drug and a needle ( 2 ) with an inner point ( 26 ) which never comes in contact with the external environment. The device is activated by a simple axial shift of the needle-shield ( 1 ) against the activation head ( 3 ). The latter is transparent and contains a window ( 45 ) of lower thickness. This allows the user to check the exact position of the needle hub ( 21 ) as a proof of tamper evidence, allowing the user to immediately determine whether the device has been previously activated or tampered with and if there is a risk that the drug has been contaminated.
|
