An ablation probe (100； 200), comprising: an applicator (102； 202) arranged to apply radiation to heat surrounding tissue； a feeding cable (104； 204) arranged to supply electromagnetic energy to the applicator (102； 202)； a first coolant flow path (106) via which coolant is able to flow； and a deformable member (110； 210) arranged to move between an insertion configuration in which insertion of the probe is facilitated and a deployed configuration, wherein a second coolant path (108), via which coolant is able to flow, is provided by the deformable member (110； 210) when in the deployed configuration.
