System and methods of controlling temperature related to electrosurgical procedures

A method of limiting a temperature of a fluid transport element of an electrosurgical wand comprising:

• drawing the electrically conductive fluid at a first fluid flow rate though the fluid transport element;
• delivering a high frequency energy to an active electrode of the electrosurgical wand, sufficient to treat a target tissue;
• sensing a temperature of an outer surface of the fluid transport element;
• and then
• modulating drawing of the electrically conductive fluid, between the first fluid flow rate and a cooling flow rate upon sensing that the temperature has reached a first threshold temperature and thereby limit damage due to high temperatures to portions of the electrosurgical wand and/or persons in contact with the outer surface of the fluid transport element;
• and
• suspending modulating upon sensing that the temperature has reached either a second threshold temperature or a lower threshold temperature, the second threshold temperature higher than the first threshold temperature, and the lower threshold temperature lower than the first threshold temperature.

A method of limiting a temperature of an electrically conductive fluid drawn through a suction tube of an electrosurgical wand comprising:

• delivering a high frequency voltage at a first high frequency voltage to an active electrode of the electrosurgical wand;
• controlling a fluid flow pump to aspirate an electrically conductive fluid through the suction tube at a first flow rate range;
• receiving a signal from a temperature sensor operatively coupled to the suction tube;
• and
• upon receiving a signal indicative that a temperature meets or exceeds a first threshold temperature, controlling the fluid flow pump to modulate an aspiration rate and also synchronously modulating the high frequency voltage, and thereby regulating the temperature of a suction tube external surface.