Dental anesthetic delivery devices and associated methods

A dental anesthetic delivery device comprising:

• a syringe body, the syringe body defining, at least in part, a gas chamber and an anesthetic chamber;
• an orifice coupled to the syringe body, the orifice comprising a channel coupling an anesthetic delivery opening with the anesthetic chamber,
• a handle portion coupled to the syringe body, the handle portion comprising at least one arm disposed at an angle relative to the syringe body, the at least one arm being configured to receive a gas cannister;
• a trigger mechanism, the trigger mechanism disposed, at least in part, within the syringe body, the trigger mechanism comprising a shaft configured to actuate the gas cannister to release gas into the gas chamber when the trigger mechanism is pressed in a direction parallel to the syringe body towards a distal end of the syringe body by a user, the shaft being configured to actuate the gas cannister by actuating a release pin of the gas canister to release gas into the gas chamber;
• and
• a piston disposed within the syringe body separating the gas chamber from the anesthetic chamber, the piston being configured to propel anesthetic disposed within the anesthetic chamber through the anesthetic delivery opening when the gas cannister is actuated.