An ablation device includes an antenna assembly having a radiating portion configured to deliver energy from a power source to tissue of a patient. Each seat comprises two walls movable with respect to each other, to retain the packs during the overturning movement. The cooled exhaust hood plates cool and condense the exhaust steam in proximity. The conductive traces provide electrical conductivity to the microstructure. The control system is configured to adjust the first and second desired flow rates based on the measurements made by the first and second measurement devices.