简介：Inthispaper,acryosurgery-hyperthermiasystemisproposedfortakingadvantageofthealternatedcoolingandheatingtreatmentintumor.Anovelcontrolsystemisproposedtoensurethatthethermalsystemworkseffectively.Firstly,thetissuetemperaturearoundtheprobeisregulatedandkeptinadesiredrangewhenradiofrequencyablationisoperated.Secondly,precisecontroloftemperatureisachievedinhyperthermiatreatmentusingfuzzylogicPIDtypecontroller.Theresultsofexvivoliverexperimentdemonstratethatthissystemcouldprovidearathergoodperformancewiththeproposedcontrolmethod.
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