Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles within an outer tube
View Patent ↗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.
1. A non-invasive ventilation system, the system comprising:
at least one outer tube with a proximal lateral end of the at least one outer tube adapted to extend to a side of a nose, wherein the at least one outer tube includes a wall and a throat section;
at least one coupler at a distal section of the at least one 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 positioned within the at least one outer tube at the proximal lateral end and in fluid communication with a pressurized gas supply;
at least one pressure tap disposed within the at least one outer tube in fluid communication with a transducer;
at least one opening in the distal section adapted to be in fluid communication with the at least one nostril; and
at least one aperture defined through the wall of the at least one outer tube in fluid communication with ambient air, wherein the at least one aperture is in downstream proximity to the at least one pressure tap.
2. The system of claim 1 , wherein the at least one outer tube further includes a first outer tube and a second outer tube extending in substantially opposite directions.
3. The system of claim 2 , wherein at least one of the at least one jet nozzle is positioned within the first outer tube and another of the at least one jet nozzle is positioned within the second outer tube.
4. The system of claim 2 , wherein the first outer tube is separated from the second outer tube by a divider.
5. The system of claim 1 , wherein the at least one outer tube is a manifold.
6. The system of claim 5 , wherein a gas flow path within the manifold is curved and devoid of abrupt angles and corners.
7. The system of claim 1 , wherein the at least one coupler is a nasal pillow.
8. The system of claim 1 , wherein the at least one coupler is adapted to seal the at least one nostril such that a patient spontaneously breathes through the at least one aperture.
9. The system of claim 1 , wherein a distal tip of the at least one jet nozzle is positioned at the at least one aperture.
10. The system of claim 1 , wherein the at least one jet nozzle directs pressurized gas in a substantially parallel direction with ambient air entering from the at least one aperture.
11. The system of claim 1 , further comprising at least one secondary aperture in the at least one outer tube.
12. The system of claim 1 , wherein the at least one jet nozzle directs pressurized gas coaxially to a primary gas flow pathway.
13. The system of claim 1 , further comprising a filter.
14. The system of claim 1 , further comprising at least one sensor for sensing spontaneous respiration.
15. The system of claim 14 , further comprising a ventilator for delivering pressurized gas in synchrony with phases of breathing.
16. The system of claim 1 , wherein a cross sectional area of the at least one aperture is larger than a cross sectional area of the throat section.
17. The system of claim 1 , wherein the system further comprises a wearable ventilator.
18. The system of claim 1 , wherein the system further comprises a ventilator, the ventilator comprises a control unit, and wherein the control unit adjusts an output of the ventilator to match a patient's ventilation needs based on information from at least one sensor.
19. The system of claim 1 , wherein the system further comprises a ventilator, the ventilator comprises a control unit, and the control unit comprises a speaking mode sensing system, and wherein the control unit adjusts an output of the ventilator while the patient is speaking to not be asynchronous with a patient's spontaneous breathing.
20. The system of claim 1 , wherein the system further comprises a ventilator, the ventilator comprises a control unit, and the control unit comprises an apnea or hypopnea sensing system, and wherein the control unit adjusts an output of the ventilator according to apnea or hypopnea.
21. The system of claim 1 , wherein the at least one outer tube comprises sound reduction features selected from the group consisting of: a secondary aperture, a filter for the at least one aperture, textured surfaces, a muffler, sound absorbing materials, an angled jet nozzle, non-concentric jet nozzle positions, and combinations thereof.
22. The system of claim 1 , wherein the system further comprises a ventilator, and the at least one outer tube comprises at least one gas delivery circuit in fluid communication with the ventilator.
23. The system of claim 22 , wherein the at least one gas delivery circuit is bifurcated.
24. The system of claim 23 , wherein the at least one outer tube further comprises a manifold in fluid communication with the ventilator, the manifold comprising at least one lateral proximal end in fluid communication with the at least one gas delivery circuit.
25. The system of claim 24 , wherein at least one of the at least one aperture defined through the wall of the at least one outer tube in fluid communication with ambient air is disposed in the at least one lateral proximal end of the manifold.
26. The system of claim 25 , wherein at least one of the at least one jet nozzle is aligned in parallel with each of the at least one gas delivery circuit and supplies ventilation gas proximate to the at least one of the at least one aperture defined through the wall of the at least one outer tube in fluid communication with ambient air.
27. The system of claim 26 , wherein the ventilation gas and entrained ambient air elevates lung pressure, elevates lung volume, decreases work of breathing or increases airway pressure.
28. The system of claim 22 , wherein the transducer is disposed within the ventilator.