Pressure-driven type anti-backflow microporous atomizing device

Abstract

The invention relates to a pressure-driven type anti-backflow microporous atomizing device. The pressure-driven type anti-backflow microporous atomizing device comprises an upper joint, an upper connecting pipe, a one-way valve, a hinged ball, an upper end cover, an atomizing chamber, a lower end cover, an air inlet joint, an air inlet pipe and a counterweight block. The upper joint is a T-shaped three-way joint which comprises two horizontally communicated connectors and a vertical connector. The two horizontally communicated connectors of the upper joint are respectively connected with a respirator and an artificial airway through pipelines; the vertical connector of the upper joint communicates with the upper connecting pipe, and the upper end of the upper connecting pipe is connected with the vertical connector of the upper joint; the lower end of the upper connecting pipe is connected with the hinged ball, and the one-way valve is arranged in the upper connecting pipe; and the one-way valve can prevent backflow of condensate water generated in the pipelines, cough secretions of an airway of a patient and the like. The probability of infection can be effectively reduced, and a ball hinge structure is matched with the counterweight. Therefore, when the body position of the patient changes, it ensures that the atomizing device is in a vertical state all the time, the atomized liquid medicine is kept at the lowest position of the atomizing device all the time, so that the liquid medicine residue is reduced, and the atomization effect is ensured.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of medical auxiliary equipment, and in particular relates to a pressure-driven anti-backflow microporous atomization device used for the atomization treatment of patients assisted by a ventilator. [0003] Background technique: [0004] At present, in clinical practice, especially in intensive care units, there are more and more occasions where ventilators are used to help patients breathe. In addition to assisting breathing, ventilators can also be used for nebulization of medicines. In addition to intravenous medication, many special pulmonary infections must also be treated with local atomized inhalation, because local atomized inhalation has a better effect of eliminating phlegm and expectoration. [0005] At present, when performing nebulization therapy on ventilator patients clinically, a T-shaped three-way connector is usually provided. One of the two horizontally connected connectors of the T-...

AI Technical Summary

Problems solved by technology

[0007] (1) Condensed water generated in the pipeline during the nebulization period, cough secretions of the patient's airway, etc. are easily poured into the nebulizer, causing drug pollution and wasting drugs. At the same time, if the substances poured into the nebulizer cannot be cleaned up in time , it will form a bacterial culture medium, which is easy to breed bacteria and increase the risk of infection. The bred bacteria will enter the patient's respiratory tract with the next atomization, causing ventilator-associated pneumonia (VAP) in severe cases, increasing the length of hospital stay and increasing the patient's financial difficulties , increased mortality

[0008] (2) Patients generally use a semi-sitting position when nebulizing, but mechanically ventilated patients often adopt lying positions, 30-degree sitting positions, side lying positions, etc. due to their critical condition and cannot meet the requirements. When changing, it is easy to cause the inclination of the atomizer, and the pressure gas used in the atomization of the existing atomizer usually enters from the lower end of the atomizer. Once the atomizer is tilted, the liquid level in the atomizer will decrease. Tilting occurs, causing the part of the liquid medicine to not be fully atomized, and part of th...

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