pod Aspirating Syringe

The pod aspirating syringe is used in veterinary dentistry to inject local anaesthetic. Aspirating syringes differs from most syringes in that they are designed to inject anaesthetic from a carpule. The parts of an aspirating 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 carpule, a finger grip, and a thumb ring.

The syringe allows the veterinarian to aspirate (draw back) from the injection site to see if the needle tip is located in a blood vessel before injecting the anaesthetic solution. Once the harpoon is engaged into the rubber stopper of the anaesthetic carpule, inward or outward pressure can be applied on the stopper by exerting pressure on the thumb ring. Pulling the thumb ring outward also pulls the plunger outward producing an aspirating effect; whereas, pushing inward forces the anaesthetic solution through the needle.