Tumor combined therapeutic system, a kind of medical instrument to restrain and kill tumor, is based on radio frequency heating technique and biological heating effect theory. It can be used solely or in combination with chemotherapy and actinotherapy for tumor hyperthermia. Combined with hardware measurement and adjustment, as well as application of the improved PID algorithm to the system of temperature control, the required accurate temperature control which directly influences the curative effect is realized. The experimental results presented in this paper demonstrated that the equipment works stably and reliably, and it is of good usefulness.
Algorithms ; Combined Modality Therapy ; Equipment Design ; Humans ; Hyperthermia, Induced ; instrumentation ; methods ; In Vitro Techniques ; Neoplasms ; therapy ; Temperature

The development of a multi-functional tumor combined therapeutic instrument based on improved PID algorithm is introduced. It is based on the theory of 1 + 1 = 3 or 1 + 1 + 1 > 3 curative effect enhancement by tumor combined therapy, and it can be used solely, or with the combination of chemotherapy or actinotheraphy or both for tumor hyperthermia. By adopting improved PID temperature control algorithm, the problem of temperature control precision reduction due to process characteristics changing with different heaters was solved, thus ensuring homogeneous and smooth radio frequency heating by different heaters to intracavity tumor foci. These experiments demonstrated that the new algorithm has strong adaptability and anti-disturbance capability, the equipment works stably and reliably, and it can control therapeutic temperature precisely (+/- 0.1 degree C), which indicates a good value in clinical application.
Algorithms ; Combined Modality Therapy ; Equipment Design ; Hyperthermia, Induced ; instrumentation ; Neoplasms ; therapy ; Temperature

Radio frequency ablation has become a valuable method in treating cancers or tumors for its wide adaptability, better efficacy, convenience and safety. This paper introduces the research and development of a multipolar RF tumor therapy system based on the technology of destroying hypoxic cell. This is an intellectualized tumor curing system.
Animals ; Catheter Ablation ; instrumentation ; methods ; Electrodes ; Equipment Design ; Mice ; Mice, Nude ; Neoplasms, Experimental ; therapy ; Software Design