TOROIDAL RING VENTILATOR

摘要

The mechanical ventilator system is a compact and portable artificial respiration system. A vortex ring generator delivers a FiO2 mix from an air-oxygen blender to a patient's alveoli via an endotracheal tube during the s patient's inhalations, but remains idle during the patient's exhalations. Exhaust gases generated by the patient are released through an exhaust gas valve. During operation, the patient's oxygen saturation level is measured and kept in communication to receive oxygen saturation level signals and to control the oxygen proportion of the FiO2 mix. A pressure flow sensor is fluidly coupled with the patient's airway to control actuation of the vortex generator. The flow sensor is coupled with a controller, which actuates a vortex generator trigger circuit in communication with the vortex ring generator.

主权项

1. A mechanical ventilator system adapted to augment the inspiratory phase of breathing, comprising:
an endotracheal tube; a vortex ring generator, the vortex ring generator being in fluid communication with the endotracheal tube; means for measuring oxygen saturation in a patient's blood; an air-oxygen blender for outputting air-oxygen to the patient, the air-oxygen blender being in fluid communication with the vortex ring generator, the air-oxygen blender being actuated during the patient's inhalations, wherein negative pressure breathing is initiated by the patient during the inspiratory phase of breathing and is augmented by the ring vortices generated by the vortex ring generator, and being idle during the patient's expiratory phase; means for controlling a fraction of inspired oxygen in the output from the air-oxygen blender, the means for controlling being in communication with the means for measuring oxygen saturation in a patient's blood; and means for controlling positive end-expiratory pressure of expired air from the patient, the means for controlling positive end-expiratory pressure being in communication with the vortex ring generator.