Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles with an outer tube
Inventors
Kapust, Gregory • Allum, Todd • Wondka, Anthony D. • Cipollone, Joseph • Aguirre, Joey • Eghbal, Darius • Gerber, Anthony • Freitag, Lutz
Assignees
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Publication Number
US-11707591-B2
Publication Date
2023-07-25
Expiration Date
Abstract
A non-invasive ventilation system may include at least one outer tube with a proximal lateral end of the outer tube adapted to extend to a side of a nose. The at least one outer tube may also include a throat section. At least one coupler may be located at a distal section of the outer tube for impinging at least one nostril and positioning the at least one outer tube relative to the at least one nostril. At least one jet nozzle may be positioned within the outer tube at the proximal lateral end and in fluid communication with a pressurized gas supply. At least one opening in the distal section may be adapted to be in fluid communication with the nostril. At least one aperture in the at least one outer tube may be in fluid communication with ambient air. The at least one aperture may be in proximity to the at least one jet nozzle.
Core Innovation
The invention relates to a non-invasive ventilation system in which an outer tube extends to a side of a nose and remains open to ambient air. A distal coupler impinges at least one nostril and positions the outer tube relative to the nostril, while a proximal jet nozzle is positioned within the outer tube and is in fluid communication with a pressurized gas supply or ventilator.
At least one opening in the distal section is adapted to be in fluid communication with the nostril, and at least one aperture is defined through the wall of the outer tube in fluid communication with ambient air. The aperture is in proximity to the jet nozzle to enable an ambient-air communication path and entrainment of ambient air while delivering pressurized gas to the nostril.
The system further includes a pressure tap disposed within the outer tube in fluid communication with a transducer, and in ventilator implementations the pressure tap is in fluid communication with the ventilator. A control unit can sense spontaneous respiration, speaking mode, and apnea or hypopnea, and the ventilator output is controlled in synchrony with phases of breathing or adjusted based on those sensing systems.
Claims Coverage
The independent claims include three independent claims. Across these independent claims, the main inventive features focus on a non-invasive outer tube and coupler arrangement impinging a nostril, a jet nozzle positioned within the tube and supplied with pressurized gas, a distal opening in fluid communication with the nostril, and an ambient-air aperture through the tube wall positioned in proximity to the jet nozzle, with pressure sensing via a pressure tap and transducer; additional independent-claim structure adds ventilator integration and control/sensing synchronization to breathing phases, speaking, and apnea/hypopnea.
Nasal-positioning outer tube with distal coupler and in-tube jet nozzle
A non-invasive ventilation system comprising at least one outer tube with a proximal lateral end adapted to extend to a side of a nose and a throat section, and at least one coupler at a distal section for impinging at least one nostril and positioning the outer tube relative to the nostril.
Proximal jet nozzle supplying pressurized gas within the outer tube
At least one jet nozzle positioned within the outer tube at the proximal lateral end or proximal end and in fluid communication with a pressurized gas supply.
Pressure tap disposed within the outer tube and coupled to a transducer
At least one pressure tap disposed within the outer tube in fluid communication with a transducer.
Nostril fluid communication via a distal opening
At least one opening in the distal section adapted to be in fluid communication with the at least one nostril.
Ambient-air aperture through the tube wall proximate to the jet nozzle
At least one aperture defined through the wall of the outer tube in fluid communication with ambient air, wherein the at least one aperture is in proximity to the at least one jet nozzle.
Ventilator-fed jet nozzle with integrated pressure sensing
A non-invasive ventilation system comprising a ventilator, with the jet nozzle positioned within the outer tube at a proximal end and in fluid communication with the ventilator, and with the pressure tap disposed within the outer tube and in fluid communication with the ventilator.
Breathing-phase synchronized ventilator delivery
The system configured so the ventilator delivers pressurized gas in synchrony with phases of breathing.
Speaking-mode sensing to adjust ventilator output
A control unit with a speaking mode sensing system configured to adjust the ventilator output during patient speaking to avoid being asynchronous with the patient’s spontaneous breathing.
Apnea or hypopnea sensing to adjust ventilator output
A control unit with an apnea or hypopnea sensing system configured to adjust the ventilator’s output based on apnea or hypopnea.
Across the independent claims, the invention centers on a non-invasive outer tube with a distal coupler impinging a nostril and a jet nozzle positioned within the outer tube, combined with a distal opening to the nostril, a pressure tap coupled to a transducer or ventilator, and an ambient-air aperture through the tube wall positioned in proximity to the jet nozzle. In ventilator-based implementations, the system further includes ventilator integration and control adaptations based on breathing phases, speaking mode, and apnea or hypopnea.
Stated Advantages
Documented Applications
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