Covidien (fka Kendall) 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. Kendall/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.