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A Dental Syringe for 2.2mm cartridges. Designed for administering an anaesthetic during dental or other procedures.
Features include a breech-loading syringe designed to be fitted with a sealed cartridge containing an anaesthetic solution.
This syringe differs from most syringes in that it is designed to inject anesthetic from a carpule.
The parts of this syringe consist of a threaded tip where the needle attaches, a barrel where the carpule is placed, a piston rod (plunger) with a harpoon attached that embeds itself into the rubber stopper of the carpal.
The harpoon allows the surgeon to aspirate (draw back) the injection site to see if the needle tip is located in a blood vessel before injecting the anesthetic solution.
Once the harpoon is engaged into the rubber stopper of the anesthetic carpule, the surgeon can apply inward or outward pressure on the stopper by exerting pressure on the thumb plate.
Pulling the thumb plate outward also pulls the plunger outward producing an aspirating effect; whereas, pushing inward forces the anesthetic solution through the needle.
For Professional Use Only
