Analysis of the positive expiratory pressure valves of coupled oronasal mask.

ABSTRACT: Positive expiratory pressure (PEP) is a technique used in respiratory physiotherapy to treat diseases related to the respiratory system through spontaneous breathing. This equipment consists of an oronasal mask coupled to a T connector with a unidirectional valve. Studies that evaluate whether the pressure level in the one-way valve corresponds to the actual pressure level provided are scarce in the scientific literature. In order to investigate the failures, bench tests were carried out on the spring-loaded valves, using a U-tube manometer. This pressure was exerted on the valve using a syringe that generated air flow inside the U-tube, allowing analysis numerical value of the measured pressure and the specified values of the valve, thus verifying the disparity of these measured values in

SUBMITTER: Bezerra FS 

PROVIDER: S-EPMC11487079 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature