RESUMEN
Objective To develop a portable endoscopic thermal device which possesses the merits of compact structure,convenient operation,security and good compatibility.Methods Rapid heating elements and several materials are used,which are excellent insulation,heat conduction and can withstand high temperatures.The production process of miniaturization,anti-conglutination and constant temperatureare adopted.Results: The size of Heat probe is about 2.4mm in outer diameter and 8 mm in length.The maximum temperature will reach 250℃,heating time within 10s,output 4.5～6.5W.Conclusion Heat Probe can be compatible with various types gastrointestinal endoscopic channel.Besides hemostasis of upper gastrointestinal,it can also be applied to small polyps,erosive gastritis,etc.