Abstract
Using stents is one method of treating stenosis of lumens from various causes. Cylindrical metallic stents are composed of alloy wire. After stents are implanted, however, stenosis may recur due to tumors or abscesses. It is particularly difficult to remove tumors or abscesses of the bile duct by surgery, because this is in a deep portion of the abdomen. We propose a non-invasive method of remedying tumors and abscesses by using thermotherapy with magnetically excited metallic stents. Clinical stents are not currently manufactured to allow for heating. We fabricated stents of thermosensitive magnetic material so they could be heated the heat controlled by external magnetic excitation for thermotherapeutic applications. We used a solenoid coil for clinical applications.
