A device for preventing airway leaks when clearing airway secretions

Abstract

The invention discloses a device preventing air leakage of an airway in the process of eliminating airway secretions. The device comprises a connecting piece arranged between a trachea cannula and a ventilation loop or between a nasal mask and the ventilation loop or between a nasal face mask and the ventilation loop. A round hole is formed in the connecting piece, and a one-way valve used for closing the round hole is arranged at the inlet of the round hole. Compared with the prior art, the device preventing air leakage of the airway in the process of eliminating the airway secretions can enable the inner wall of the round hole to be attached to a suction catheter or a fiber bronchoscope tightly when the suction catheter or the fiber bronchoscope is inserted into the round hole from outside to inside and ensure that a gap does not exist between the suction catheter and the inner wall of the round hole or the fiber bronchoscope and the inner wall of the round hole; due to the fact that the one-way valve is arranged on the round hole and matched with a convex ridge, the natural position state of the convex ridge is that the convex ridge is attached to the round hole tightly, and the device ensures that air leakage does not exist in the ventilation airway.

Description

technical field [0001] The invention relates to a medical device, in particular to a device capable of preventing airway leakage when using a sputum suction tube or a fiber bronchoscope to remove airway secretions under invasive or noninvasive mechanical ventilation. Background technique [0002] Respiratory failure caused by various etiologies requires non-invasive ventilation, even endotracheal intubation, and invasive mechanical ventilation in order to maintain the patient's vital signs and provide sufficient time for the treatment of the etiology. Airway care during mechanical ventilation needs to pay attention to two issues: one is to deal with the patient's airway secretions, when non-invasively ventilated patients cannot effectively clear the airway secretions by coughing, or when invasive ventilation is performed, airway secretions The secretions should be sucked out through the sputum suction tube or fiberoptic bronchoscope in time, otherwise these secretions will a...

AI Technical Summary

Problems solved by technology

Airway care during mechanical ventilation needs to pay attention to two issues: one is to deal with the patient's airway secretions, when non-invasively ventilated patients cannot effectively clear the airway secretions by coughing, or when invasive ventilation is performed, airway secretions The secretions should be sucked out through the sputum suction tube or fiberoptic bronchoscope in time, otherwise these secretions will affect the ventilation effect, and even ventilator-associated pneumonia may occur, which will affect the treatment effect; the second is to ensure the stability of the airway pressure, especially For patients with hypoxemia, adult respiratory distress syndrome and endogenous positive end-expiratory pressure, repeated air leaks will not only affect the ventilation effect, but also cause lung injury

[0007] None of the above three methods can effectively solve the problem of clearing airway secretions while ensuring that the airway is not leaky. Among them, the first and second methods have air leakage; the third method has poor sputum suction effect, and at the same time There is also the phenomenon of air leakage when replacing the sputum suction tube

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