Nasal breathing and ventilation device

A nasal breathing and ventilation device, comprising at least one ventilation tube and a ventilation box, wherein one end of the ventilation tube is provided with a nasal brace, the nasal brace comprises a nasal brace channel and a plurality of support rings, one end of the nasal brace channel is provided with a through hole, and the through hole is formed by a plurality of air holes, the ventilation tube is connected to the ventilator, the ventilator delivers air into a nasal-cavity at a specific pressure, the nasal brace channel is an extension of the ventilation tube in the nasal-cavity, the ventilation tube delivers air via the through hole at the one end of the nasal brace channel, the nasal brace is detachably connected to an end portion of the ventilation tube, so as to replace in time,

• or the nasal brace is used alone without being connected to the ventilation tube, the nasal brace is fixed to the nasal-cavity to deliver air to the nasal-cavity or process other treatment through the nasal brace channel;
• the support rings are disposed on a circumferential outer wall of the nasal brace channel, sequentially arranged along a direction of the nasal brace channel, and configured to support a nasal-cavity inner wall to fix the nasal breathing and ventilation device by using the support ring of the nasal brace to replace a head belt;
• and the support rings are co-axially arranged, the support ring at one end away from the through hole is a maximum outer diameter-support ring, and along a nasal insertion direction of the nasal brace, outer diameters of the support rings are decreased sequentially, the maximum outer diameter-support ring is used for a position limiting ring blocking in a nasal-cavity hole to prevent the nasal brace from overstuffing;
• one end of the nasal brace channel away from the through hole is connected to the ventilation tube;
• and a tube wall at the one end of the ventilation tube close to the nasal brace is provided with a plurality of exhaust holes, wherein the exhaust hole communicates with an inner wall and an outer wall of the ventilation tube, an opening of the exhaust hole on a side of the inner wall is close to the nasal brace, and an opening of the exhaust hole on a side of the outer wall is away from the nasal brace,
• after a patient completes an inhalation, the ventilator is triggered by a sensor to reduce an oxygen supply, and, in coordination with the patient, expel an exhaled gas reversely from the through hole to the nasal brace, and exhaust it through the exhaust hole on the ventilation tube, after the patient completes an exhalation, the sensor triggers the ventilator to resume the oxygen supply,
• the at least one ventilation tube comprises two ventilation tubes combined for use, arranged in parallel, and provided with a connecting structure therebetween, the two ventilation tubes are each provided with a nasal wing, and the nasal wings open outward and are configured to respectively grip two external sides of a nose, the ventilation tubes are respectively used or combined for use, the ventilation tubes are fixed by the connecting structure when the ventilation tubes are used at the same time to prevent the ventilation tubes from twining,
• each of the ventilation tubes communicates with the ventilation box and is connected to a ventilator via the ventilation box;
• and the ventilation box is provided with a backup interface.