A surgical suction device including: a) a housing defining an internal chamber and including: i) an inlet for receiving material extracted from a subject via a hollow tip including one or more suction openings for receiving the materials from a surgical site on the subject and, ii) an outlet for coupling the housing to a suction source to allow material to be drawn therethrough and, b) a mixing apparatus including one or more mixing members positioned inside the chamber for agitating material passing through the chamber from the inlet to the outlet in use to thereby prevent the material clogging the outlet.