Patient interface with integrated jet pump
Inventors
Brambilla, Enrico • Ahmad, Samir • Mastrovich, Lawrence • Berman, Gary • Mastrovich, David
Assignees
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Publication Number
US-12017002-B2
Publication Date
2024-06-25
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 relates to a system for providing ventilation to an individual that integrates a ventilator and an oxygen concentrator with a manifold housing and a patient circuit. The patient circuit includes segments of tubing that define a high-pressure gas lumen, a low-pressure gas lumen, and a pressure sensing lumen that are isolated from each other within the tubing.
A jet pump housing is coupled to the manifold housing and defines at least one entrainment port in fluid communication with ambient air. A jet nozzle cooperatively engaged to the jet pump housing defines a high-pressure jet nozzle outlet port and a low-pressure jet nozzle outlet port, and the high-pressure jet nozzle outlet port is disposed forward from the low-pressure jet nozzle outlet port.
The jet nozzle is operative to facilitate air entrainment through the entrainment port and mixing of entrained air with gas concurrently introduced into the gas pathway from the high and low-pressure jet nozzle outlet ports. At least one sensing tube is in fluid communication with the pressure sensing lumen of each tubing segment and extends into fluid communication with the gas pathway at a position distal to both the high-pressure jet nozzle outlet port and the low-pressure jet nozzle outlet port.
Claims Coverage
The partial content includes three independent claims (clm-00001, clm-00018, and clm-00020). All three independent claims share the same core structural arrangement: a ventilation system with isolated high-pressure, low-pressure, and pressure-sensing lumens in tubing; a jet pump with an entrainment port open to ambient air; a jet nozzle having forward-disposed high-pressure and low-pressure outlet ports for entrainment and mixing; and sensing tubes positioned distally into the gas pathway.
Ventilator-oxygen-concentrator manifold with isolated lumen patient circuit
A system including a ventilator, an oxygen concentrator, a manifold housing defining at least one gas pathway, and a patient circuit connecting the ventilator and the oxygen concentrator to the at least one gas pathway, wherein the patient circuit comprises one or more segments of tubing defining a high-pressure gas lumen, a low-pressure gas lumen, and a pressure sensing lumen that are isolated from each other within the tubing.
Jet pump entrainment port mixing high- and low-pressure gas
A jet pump housing coupled to the manifold housing and defining at least one entrainment port in fluid communication with ambient air, and a jet nozzle cooperatively engaged to the jet pump housing that defines a high-pressure jet nozzle outlet port in fluid communication with the high-pressure gas lumen and a low-pressure jet nozzle outlet port in fluid communication with the low-pressure gas lumen, with the high-pressure jet nozzle outlet port disposed forward from the low-pressure jet nozzle outlet port and operative to facilitate air entrainment through the entrainment port and mixing of entrained air with gas concurrently introduced from the high and low-pressure jet nozzle outlet ports.
Distal sensing tube in fluid communication with pressure sensing lumen
At least one sensing tube in fluid communication with the pressure sensing lumen of each of the one or more tubing segments and extending into fluid communication with the gas pathway at a position distal to the high-pressure jet nozzle outlet port and the low-pressure jet nozzle outlet port.
Oxygen-source connection to manifold gas pathway
An oxygen source is connected to the at least one gas pathway of the manifold housing.
Across the independent claims, the claimed ventilation system is characterized by an isolated-lumen patient circuit connected to a manifold gas pathway, a jet pump with an entrainment port in fluid communication with ambient air, a jet nozzle having forward-disposed high-pressure and low-pressure outlet ports for entrainment and concurrent mixing, and sensing tubes that extend distally into the gas pathway in fluid communication with the pressure sensing lumens.
Stated Advantages
Documented Applications
Not explicitly described in patent.
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