Thermotherapy with metallic stent depend on external excitation

One of the treatments for stenosis of lumens in organs due to various causes is by implanting stents. However, the stenosis may recur due to a tumor or abscess again. This paper aims to noninvasively reduce such a tumor or abscess by thermotherapy with excited metallic stents made of alloy wires. Currently produced stents are not allowed to heat, this study identifies the feasibility of heating stents and examines the possibility of thermotherapy. The relationship between heating value of the stent and the value of frequency multiplied by magnetic flux density was presented. It is suggested by the acquired results that the heat of the stents is caused by eddy current loss. The study also showed that the heating value and temperature of stent may be controlled by changing the value of frequency and magnetic flux density. The possibility of heating stents even in vivo is presented. This study owed that it is possible to attain a heating value enough for in vivo cancer necrosis.