Patient interface with integrated jet pump
Inventors
Brambilla, Enrico • Ahmad, Samir • Mastrovich, Larry • Berman, Gary • Mastrovich, David
Assignees
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Publication Number
US-12440633-B2
Publication Date
2025-10-14
Expiration Date
Abstract
A patient circuit of a ventilation system, such as a non-invasive open ventilation system, wherein the patient circuit comprises a nasal pillows style patient interface that incorporates at least one “Venturi effect” jet pump proximal to the patient. The patient circuit further comprises a pair of uniquely configured 3-way connectors which, in cooperation with several uniquely configured tri-lumen tubing segments, facilitate the cooperative engagement of the patient interface to a ventilator of the ventilation system.
Core Innovation
The invention provides a system for providing ventilation to an individual that includes a ventilator and an oxygen concentrator, together with a patient circuit. The patient circuit uses a jet pump housing defining at least one entrainment port in fluid communication with ambient air and a jet nozzle cooperatively engaged to the jet pump housing. A low-pressure outlet port outputs gas from the oxygen concentrator into the jet pump housing, and a high-pressure jet nozzle outlet port outputs gas from the ventilator into the jet pump housing.
The high-pressure jet nozzle outlet port is disposed forward from the low-pressure outlet port, and at least the high-pressure jet nozzle outlet port facilitates air entrainment through the entrainment port and mixing of the entrained air with gas concurrently introduced into the jet pump housing. Gas is concurrently introduced from both the high-pressure jet nozzle outlet port and the low-pressure outlet port so that entrained ambient air is mixed with the introduced gas within the jet pump housing.
To support pressure sensing, the patient circuit includes at least one sensing tube extending to a position distal to the high-pressure jet nozzle outlet port and the low-pressure outlet port. The described arrangement positions the sensing tube relative to the jet nozzle outlet ports to extend to a distal position beyond those outlet ports.
Claims Coverage
The independent claims define three core inventive combinations: a ventilation system including a ventilator and an oxygen concentrator with a jet pump mixing arrangement and distal sensing tube, a ventilation system with a ventilator and a jet pump mixing arrangement and distal sensing tube, and a patient circuit implementing the jet pump mixing arrangement with distal sensing tube. Each independent claim further uses a forward-disposed high-pressure jet nozzle outlet port relative to a low-pressure outlet port for entrainment and mixing.
Forward-disposed high-pressure and low-pressure jet mixing for air entrainment
A jet pump housing defining at least one entrainment port in fluid communication with ambient air; a low-pressure outlet port configured to output gas into the jet pump housing; and a jet nozzle defining a high-pressure jet nozzle outlet port configured to output gas from the ventilator into the jet pump housing, wherein the high-pressure jet nozzle outlet port is disposed forward from the low-pressure outlet port, and at least the high-pressure jet nozzle outlet port facilitates air entrainment through the entrainment port and mixing of the entrained air with gas concurrently introduced into the jet pump housing from the high-pressure jet nozzle outlet port and the low-pressure outlet port.
Oxygen concentrator low-pressure outlet into the jet pump housing
The low-pressure outlet port is configured to output gas from the oxygen concentrator into the jet pump housing.
Distal sensing tube relative to the jet nozzle outlet ports
At least one sensing tube extending to a position distal to the high-pressure jet nozzle outlet port and the low-pressure outlet port.
Entrainment port mixing using forward-disposed high-pressure outlet and low-pressure outlet
At least the high-pressure jet nozzle outlet port is operative to facilitate air entrainment through the entrainment port and mixing of the entrained air with gas concurrently introduced into the jet pump housing from the high-pressure jet nozzle outlet port and the low-pressure outlet port.
Across the independent claim set, the core coverage is a jet pump housing with an entrainment port for ambient air, a forward-disposed high-pressure jet nozzle outlet port relative to a low-pressure outlet port to entrain ambient air and mix it with concurrently introduced gas, and at least one sensing tube extending to a position distal to both outlet ports.
Stated Advantages
Documented Applications
No documented applications found
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