A non-sterile mechanical device intended to be used in a respiratory or anaesthesia breathing circuit to maintain a degree of positive pressure in a patient's airway at the end of expiration. Typically constructed of plastic/metal it has a valve that is act...
A non-sterile mechanical device intended to be used in a respiratory or anaesthesia breathing circuit or system to maintain a degree of positive pressure in a patient's airway at the end of expiration. Typically constructed of plastic/metal it has a valve t...