摘要:
Systems and methods are provided for humidifying ventilation gas. Systems and methods may include a nasal interface apparatus for receiving ventilation gas from gas delivery tubing and for humidifying ventilation gas. The nasal interface apparatus may have one or more channels within the nasal interface to deliver gas from a gas delivery circuit to a patient's nose; one or more structures in fluid communication with the one or more channels to direct ventilation gas to the patient's nose; and a hygroscopic material within the nasal interface in the flow path of the ventilation gas.
摘要:
Systems and methods are provided for humidifying ventilation gas. Systems and methods may include a nasal interface apparatus for receiving ventilation gas from gas delivery tubing and for humidifying ventilation gas. The nasal interface apparatus may have one or more channels within the nasal interface to deliver gas from a gas delivery circuit to a patient's nose; one or more structures in fluid communication with the one or more channels to direct ventilation gas to the patient's nose; and a hygroscopic material within the nasal interface in the flow path of the ventilation gas.
摘要:
A portable liquid oxygen system may provide an average flow rate of oxygen gas at approximately 6-approximately 20 lpm using a rapid gas conversion mode.
摘要:
A system for providing ventilation support to a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle at the distal end of the gas delivery circuit; and at least one spontaneous respiration sensor for detecting respiration in communication with the control unit. The system may be open to ambient. The control unit may receive signals from the at least one spontaneous respiration sensor and determine gas delivery requirements. The ventilator may deliver gas at a velocity to entrain ambient air and increase lung volume or lung pressure above spontaneously breathing levels to assist in work of breathing, and deliver ventilation gas in a cyclical delivery pattern synchronized with a spontaneous breathing pattern.
摘要:
A portable liquid oxygen system may provide an average flow rate of oxygen gas at approximately 6-approximately 20 lpm using a rapid gas conversion mode. The rapid gas conversion mode utilizes a Stirling engine that harnesses the heat differential between the ambient temperature and the liquid oxygen store to drive a fan. The fan operates to blow ambient air across a heat exchanger, which allows the heat exchanger to more rapidly evaporate liquid oxygen into oxygen gas.
摘要:
Embodiments of the present invention may provide ventilation to a patient's lung or airway using a nasal ventilation mask, as part of either a non-invasive ventilation system (NIV) or a non-invasive open-airway ventilation system (NIOV). A ventilation mask may include a rigid or semi-rigid manifold housing. A compliant tube may be located within the manifold housing for forming a main gas pathway through the manifold housing. One or more nasal connectors may be fluidly coupled to the main gas pathway in the compliant tube. A system for sensing airflow through a patient's nose may include a sensing port with a distal opening that opens to a main gas pathway. A protrusion on at least one side of the distal opening may protrude into the main gas pathway.
摘要:
A system for reducing airway obstructions of a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle, and at least one spontaneous respiration sensor in communication with the control unit for detecting a respiration effort pattern and a need for supporting airway patency. The system may be open to ambient. The control unit may determine more than one gas output velocities. The more than one gas output velocities may be synchronized with different parts of a spontaneous breath effort cycle, and a gas output velocity may be determined by a need for supporting airway patency.
摘要:
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.
摘要:
Systems and methods may include a gas source, a gas delivery circuit, and a nasal interface allowing breathing ambient air through the nasal interface. A gas flow path through the nasal interface may have a distal gas flow path opening. A nozzle may be associated with a proximal end of the nasal interface a distance from the distal end gas flow path opening. At least a portion of an entrainment port may be between the nozzle and the distal end gas flow opening. The nozzle may deliver gas into the nasal interface to create a negative pressure area in the gas flow path at the entrainment port. The nasal interface and the nozzle may create a positive pressure area between the entrainment port and the distal end gas flow path opening. Gas from the gas delivery source and air entrained through the entrainment port may increase airway pressure or lung pressure or provide ventilatory support.