| 摘要 |
There is provided an injection device comprising a barrel adapted for receiving a syringe assembly, a trigger assembly, tension spring means and stopping means. The trigger assembly comprises retractable blocking means for blocking the syringe assembly at a first axial point within the barrel and a trigger for retracting said blocking means from blocking the syringe along said first axial point along the barrel. The tension spring means has a barrel end mountable on the barrel and a syringe end mountable on the syringe assembly, whereby said tension spring means imparts an axial force to the syringe assembly when the syringe assembly is in a cocked position. The stopping means are for retaining the syringe assembly in an injected position within the barrel upon release of the syringe assembly from the cocked position followed by axial travel of the syringe assembly within the barrel under the influence of the axial force.
|
