How can I remove vital injector gun syringe after emptying drug?

Q. How can I remove the vital injector gun syringe after emptying drug?

A. If you use up drug, the injector monitor shows the message “The syringe is empty.” 

and the device will be on the Standby mode. Then you press the retreat button to retreat

 the position holder, release the syringe from the holder and remove the syringe. 

The used multi-needles should be disposed.

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