Combiphon Slim Speaking Valves by Andreas Fahl

Combiphon is a compact, transparent speaking valve with a silicone membrane that enables tracheostomised patients with an intact larynx to speak. The special feature of this speaking valve is the basic position of the valve membrane. It is closed and is briefly opened during inspiration. This makes the increased pressure for closing the valve, otherwise required to form speech, unnecessary. The valve flap opens on inspiration. The exhaled airflow causes the valve to close, which enables speech. The transparent valve housing offers an unobtrusive appearance.