Description
The sentence is describing a type of needle that is meant to be used only once and is disposable. The needle is embedded in a plastic or aluminium hub that attaches to the syringe barrel by means of a press-fit or twist-on fitting. The sentence recommends that the needle be discarded after use.
These medic disposable needles are supposed to be used only once. Disposable needles are embedded in a plastic or aluminium hub that attaches to the syringe barrel by means of a press-fit or twist-on fitting. It should be discarded after use as these disposable needles no longer sterile after use.