Patent ID: 8528547

Claim:
A respiratory therapy device comprising: a housing defining a primary passageway having a patient interface side; a flow diverter structure maintained by the housing in fluid communication with the primary passageway opposite the patient interface side, wherein the flow diverter structure is characterized by the absence of a venturi tube; a high frequency pressure port maintained by the housing and configured for fluid connection to a source of oscillatory gas flow, the high frequency pressure port being fluidly associated with the flow diverter structure, and the high frequency pressure port comprising a nozzle configured to generate a jet gas flow from the source of oscillatory gas; and an entrainment port maintained by the housing and openable to ambient air, the entrainment port being fluidly associated with the flow diverter structure; wherein the device is configured such that flow characteristics of the jet gas flow from the source of oscillatory gas are altered upon interacting with the flow diverter structure to create a pressure drop for drawing in the ambient air through the entrainment port in delivering a percussive pressure therapy to the patient interface side of the primary passageway; and wherein the flow diverter structure comprises a neck region having a tapering portion that tapers radially inward toward the primary passageway and a diverter body disposed within the tapering portion, the diverter body having a shape that tapers proximally toward the primary passageway from a distal end of the diverter body; and a nebulizer port formed by the housing in fluid communication with the primary passageway at a location fluidly between the patient interface side and the flow diverter structure; and a nebulizer fluidly connected to the nebulizer port.