Study on Equipment of 915MHz implanted microwave ablation in vitro porcine livers / 医疗卫生装备

ABSTRACT

Objective To investigate the stabilization and clinical feasibility of 915MHz implanted microwave ablation equipment through experiential study on the ablation of vitro porcine livers.Methods Equipment of KY-2000 microwave ablation was used,which is produced by Kangyou microwave energy institution in Nanjing.Microwave frequency was 915MHz(?1%).Rigid implanted microwave antennae with internal sodium chloride cooling were directly implanted into vitro porcine livers,and ablations were performed in differential irradiation powers.Continuous and pulsed wave irradiation patterns can be selected,and lasted 600s and 1200s respectively.Results This equipment is safe and stable.The shapes of ablation lesions are all elliptical.Conclusion The ablation lesions can be effectively enlarged by implanted 915MHz microwave.After further experiences in vivo animal,it will be applied in ablation treatment of large liver tumors.