Covidien Argyle - 14 Fr Suction Catheter has a directional control valve to help reduce the chance of aspirated sputum while the delee-tip minimizes trauma. This firm but flexible suction catheter is easy to insert and remove while maintaining efficient suction. Covidien leads the way in respiratory therapy with innovative products like the Touch-Trol suction catheter. Latex-free. Formerly sold under Kendall name: Monojet Touch-Trol.