Ventilation mask with integrated piloted exhalation valve

A respiratory assistance system, comprising:

• a flow generator;
• a nasal pillows mask;
• and
• a fluid conduit fluidly coupling the flow generator to the nasal pillows mask, and comprising:
• a tri-lumen tube which defines a gas delivery lumen, a valve pilot lumen and a pressure sensing lumen which are each fluidly coupled to the flow generator;
• a first bi-lumen tube which defines a gas delivery lumen and a pressure sensing lumen which are each fluidly coupled to the nasal pillows mask;
• and
• a second bi-lumen tube which defines a gas delivery lumen and a pilot lumen which are each fluidly coupled to the nasal pillows mask;
• and
• a Y-connector which is fluidly coupled to the tri-lumen tube and each of the first and second bi-lumen tubes, the Y-connector being sized and configured to facilitate the fluid coupling of the gas delivery lumen of the tri-lumen tube to the gas delivery lumens of the first and second bi-lumen tubes, facilitate the fluid coupling of the pressure sensing lumens of the tri-lumen tube and the first bi-lumen tube to each other, and facilitate the fluid coupling of the valve pilot lumens of the tri-lumen tube and the second bi-lumen tube to each other;
• the Y-connector including at least first and second members which are releasably connectable to each other as allows for the selective detachment and separation of the tri-lumen tube from each of the first and second bi-lumen tubes.

A respiratory assistance system, comprising:

• a flow generator;
• a nasal pillows mask;
• and
• a fluid conduit fluidly coupling the flow generator to the nasal pillows mask, and comprising:
• a quad-lumen tube which is fluidly coupled to the flow generator and defines a gas delivery lumen, a valve pilot lumen, a pressure sensing lumen and an auxiliary lumen;
• a first bi-lumen tube which defines a gas delivery lumen which is fluidly coupled to and extends between the gas delivery lumen of the tri-lumen tube and the nasal pillows mask, and a pressure sensing lumen which is fluidly coupled to and extends between the pressure sensing lumen of the tri-lumen tube and the nasal pillows mask;
• and
• a second bi-lumen tube which defines a gas delivery lumen which is fluidly coupled to and extends between the gas delivery lumen of the tri-lumen tube and the nasal pillows mask, and a valve pilot lumen which is fluidly coupled to and extends between the valve pilot lumen of the tri-lumen tube and the nasal pillows mask.