Numerical simulation of the effect of geometric parameters on silicone airway stent migration

Recently, endotracheal stenting has become critical in treating respiratory diseases. Due to the COVID-19 pandemic recent years, many patients had stenosis because of long-term intubation, and silicone stents can be used treat tracheal these patients. Standard airway are tubes that provide immediate relief but prone migration. In this work, we design different analyze them trachea evaluate stents’ performance overcome undesired A finite-element model was employed anti-migration forces each stent. The geometry is brought from a computerized tomography scan chest 68-year-old healthy man. results shown based on least migration forces. Also, conditions stent placement have been considered two assumed friction factors, importance choosing type for construction analyzed. show increasing diameter reduces displacement it trachea. Furthermore, 23 mm with 45° angle revealed best implementation against compression under impact pressure differences.