Dose dity block the 1st generation vital injector

Vital injector use to inject dose and the needle hole is very mini.
If any dity block the machine and needle, it will be very trouble.
There will be one carton ball to avoid dity insert machine.
Besides, after each time use the vital injector have to clean the tube and machine.
By this way can ensure vital injector do not block by dity and dose.

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