Passy-Muir valve


Also found in: Acronyms.

Passy-Muir valve

a one-way speaking valve for use with tracheostomy tubes. Its normal position at rest is closed, so that it is open only during inhalation and closes during exhalation, allowing air to pass through the vocal folds for phonation.

Pa·ssy-Mu·ir valve

(pas'ē-myū'ĭr valv)
One-way valvular device to facilitate ventilation and speech in patients who have undergone tracheotomy.
References in periodicals archive ?
The patented "No Leak" design of the Passy-Muir Valves (PMVs) means that the valve is always in a closed position until the patient inhales.
Scintigraphic quantification of aspiration reduction with the Passy-Muir valve.
Contact us for a tree research literature packet, clinical education video, and CD-ROM explaining the benefits of the Passy-Muir valves.