New unidirectional airflow ball tracheostomy speaking valve.

Shikani, A H

New unidirectional airflow ball tracheostomy speaking valve. [electronic resource] - Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery Jul 2000 - 103-7 p. digital

Publication Type: Comparative Study; Journal Article

0194-5998

10.1067/mhn.2000.101576 doi


Equipment Design
Humans
Pulmonary Ventilation--physiology
Speech Intelligibility--physiology
Tracheostomy--instrumentation