Multifunctional ventilator interfaces

Abstract

A multifunctional ventilator interface for selectively providing ventilation and continuous oxygen therapy to a patient includes tubing defining a high-pressure gas lumen, a low-pressure gas lumen, and a pressure sensing lumen, a manifold housing defining a gas pathway, a jet pump housing coupled to the manifold housing and defining an entrainment port, a sleeve rotatably engaged to the jet pump housing, and a jet nozzle defining high- and low-pressure jet nozzle outlet ports operative to introduce gas from the high- and low-pressure gas lumens into the gas pathway. The sleeve includes first and second windows selectively alignable with the entrainment port by rotation of the sleeve, the first window configured to allow ambient air to flow into the entrainment port when at least partially aligned therewith, the second window being covered by a one-way valve configured to prevent ambient air from flowing into the entrainment port but to allow exhalation out of the entrainment port when the second window is at least partially aligned therewith.