Passy Muir speaking valve
Publisher
Radiopaedia.org
Reference2 articles.
1. Zabih W, Holler T, Syed F, Russell L, Allegro J, Amin R. The Use of Speaking Valves in Children With Tracheostomy Tubes. (2017) Respiratory care. 62 (12): 1594-1601.
2. Stranix JT, Danziger KM, Dumbrava VL, Mars G, Hirsch DL, Levine JP. Technique to Improve Tracheostomy Speaking Valve Tolerance after Head and Neck Free Flap Reconstruction. (2016) Plastic and reconstructive surgery. Global open. 4 (12): e1082.