Historical information
This particular type of tongue blade comes in sizes 2,4,6, and 8 and can be easily fitted to the Boyle Davis mouth gag.
Physical description
Metal tongue depressor, metal with a metal tube and nozzle attachment. Consists of a shaft and two metal sections at right angles to the shaft. Distal section is turned inwards to act as a lever. Proximal section is shaped as a flange with multiple serrations on the underside. There is a small metal tube attached along the entire length of the flange. The tube is turned downwards at the junction of the flange and the shaft, with a small bulb at the end. A small piece of tubing can be attached to this bulb.
