An anti-flashback needle inhibits the uncontrolled jetting of blood upon the insertion of the needle into a blood vessel such as an artery. The anti-flashback needle includes a shaft defining a lumen extending the length of the shaft a hub connected to the shafts proximal end, the hub having a hub wall defining a dissipation chamber in fluid communication with the lumen and a flap connected to the hub and extending laterally across at least a portion of the dissipation chamber.
