Marpac Trach-Aide, Large, Stabilizes Trach. The Trach-Aide is a non-invasive device designed to stabilize the tracheostomy tube and prevent irritation or discomfort for patients on ventilatory support. It is placed under the external portion of the tracheostomy tube and held in place at the base of the neck by "hook and loop" straps that attach to the tracheostomy collar. The Trach-Aide is made of soft polyester fleece that is highly absorbent