Abstract: A respiratory therapy device has both a standard positive expiratory pressure (PEP) device and an oscillatory PEP device packaged together. A manually operable member is movable to select which of the standard and oscillatory PEP device is placed in communication with a patient's airway. A nebulizer connector may also be provided for connection of a nebulizer.

Abstract: A system for providing continuous high frequency oscillation therapy is disclosed. A pulse generator comprises a valve stem which fluidly connects two ports when pressure in one of the two ports exceeds a threshold force. Fluidic connection between the two ports allows for fluid to flow back through an orifice and a needle valve to the pulse generator, the orifice and needle valve are components external to the pulse generator. Gases flowing through the needle valve and to the pulse generator apply a force on a diaphragm which deforms and pushes a valve button when gases flowing through the needle valve exceed a threshold. Motion of the valve button due to deformation of the diaphragm causes the valve button to exert force on the valve stem reducing fluid flow between the two ports.

Abstract: A respiratory therapy device has both a standard positive expiratory pressure (PEP) device and an oscillatory PEP device packaged together. A manually operable member is movable to select which of the standard and oscillatory PEP device is placed in communication with a patient's airway. A nebulizer connector may also be provided for connection of a nebulizer.

Abstract: A positive expiratory pressure device (PEP) has one or more of the following features, alone or in any combination: 1) a combination of oscillation PEP therapy and standard PEP therapy, 2) use of microwavable materials, 3) use of an oscillation rocker that produces a venturi effect, 4) use of a flexible tube to create the air pressure oscillation, 5) use of a rotating wheel to open and close the air channel and create air pressure oscillation, 6) use of a variable cross section air channel to generate different air flow resistance for providing multiple levels of constant pressure therapy, 7) use of a flexible air flow stopper plate with adjustable pivot point to generate different air flow resistance for providing multiple levels of constant pressure therapy, and 8) use of a selection switch that allows the device to switch between standard PEP therapy and oscillatory PEP therapy.