An oscillatory positive expiratory pressure respiratory therapy device
which may be incorporated into the expiratory limb of a ventilator
circuit. Accordingly, this device allows a patient on a ventilator to be
subjected to positive expiratory pressure (PEP) therapy combined with
airway oscillation and intermittent air flow acceleration while allowing
the oscillatory PEP respiratory therapy treatment to be bypassed without
interrupting the integrity of the ventilating circuit once the device has
been installed in the ventilator circuit. In this manner, all expiratory
air in the ventilator circuit is accounted for, the expiratory air volume
may be accurately monitored and the ventilator circuit does not have to be
broken for insertion or removal of the device.
