MODULAR PULMONARY TREATMENT SYSTEM

摘要

A patient interface system for delivering a gas to a patient includes a patient interface device that includes at least one inhalation valve and at least one exhalation valve. The system also includes a venturi device that has at least one port for connection to a gas source. The venturi device has at least one primary air entrainment window and at least one secondary air entrainment window which is downstream of the at least one primary air entrainment window. The inhalation valve is disposed between: (1) the main body and (2) the primary and secondary air entrainment windows of the venturi device. At least one of the primary air entrainment window and secondary air entrainment window includes a means for closing the respective window, thereby changing a degree at which the respective window is open and changing a flow rate of the air flowing through the respective window.

主权项

1. A patient interface device for delivering a gas to a patient comprising:
a main body for placement against a face of the patient, the main body including a conduit portion that is open at a first end to a hollow interior of the main body and a free second end for attachment to another object in a sealed manner; at least one exhalation valve assembly that is disposed within a first port formed in the main body and includes an exhalation valve member that is configured to vent exhaled air when open; a primary inhalation valve assembly that is disposed within the conduit portion and includes a primary valve member that moves between open and closed positions; and a secondary inhalation valve assembly that is disposed within a second port formed in the main body and includes a secondary valve member that moves between open and closed positions; wherein the body includes an HME (heat moisture exchange) seat for receiving an HME unit and being located in relationship to the least one primary inhalation valve assembly and the at least one exhalation valve assembly to: (1) allow passage of inhaled gas, that flows through the primary inhalation valve assembly, through the HME seat before flowing into the hollow interior of the main body and to the patient and (2) allow passage of exhaled gas from the patient through the HME seat before exiting to atmosphere through the at least one exhalation valve assembly, wherein the HME seat is at least partially defined by a wall that in integral to the main body and defines a hollow space for receiving the HME unit, the wall being constructed for mating with the HME unit for the secure, yet releasable, attachment of the HME unit to the HME seat.