Subglottic secretion drainage tracheal catheter

Abstract

The invention discloses a subglottic secretion drainage tracheal catheter, and particularly discloses a subglottic secretion drainage tracheal catheter belonging to the field of medical consumables. Through the subglottic secretion drainage tracheal catheter, the airway can be enclosed, the catheter can be fixed, positive pressure ventilation can be effectively finished, airway mucosa is protected, the comfort of a patient during subglottic secretion drainage is improved, upper respiratory tract secretions can be fundamentally prevented from entering the lower respiratory tract and the lung, and pulmonary infection is effectively prevented. The subglottic secretion drainage tracheal catheter comprises a catheter, an air bag, a joint, a gas tube and a suction tube, wherein the catheter is provided with a suction hole; the suction tube is communicated with the suction hole; one end of the suction tube is led out of the catheter; the air bag is provided with a storage groove. By adopting the subglottic secretion drainage tracheal catheter, the airway can be enclosed, and the airway mucosa is protected. Meanwhile, the complications of irritant severe cough, discomfort and the like during continuous subglottic secretion drainage are avoided, retentate and leakage on the air bag can be fundamentally prevented from entering the lower respiratory tract and the lung, and pulmonary infection is effectively prevented.

Description

technical field [0001] The invention relates to a subglottic suction tracheal tube, in particular to a subglottic suction tracheal tube belonging to the field of medical consumables. Background technique [0002] Artificial airway is an effective means to ensure unobstructed airway, and it is extremely important in the rescue process of critically ill patients. However, the establishment of an artificial airway destroys the normal anatomical structure and physiological function of the airway, resulting in limited ability to protect the airway from swallowing and increased secretions. It can leak into the lungs through the folds and gaps between the airbag wall and the tracheal wall, causing ventilator-associated tracheobronchitis (VAT) and ventilator-associated pneumonia (VAP), prolonging the duration of mechanical ventilation and ICU stay , greatly increasing medical expenses and seriously affecting the prognosis of critically ill patients. [0003] The most basic functio...

AI Technical Summary

Problems solved by technology

All airbags have the following problems: 1) The airbag is inflated enough to just close the airway to ensure that the airway does not leak during ventilation (minimum closure technology), and secretions leak into the lungs from the gap between the airbag and the tracheal wall to increase; 2) In order to reduce the amount of leakage, the amount of inflation of the airbag is often increased, which will cause the pressure of the airbag to be too high, compress and damage the tracheal mucosa, and even cause complications such as tracheal stenosis and tracheoesophageal fistula; 3) Since the trachea is not a regular circular lumen, even if Increase the amount of inflation of the airbag, and the residual matter on the airbag can still leak into the lower respiratory tract and enter the lungs through the folds and gaps between the airbag wall and the tracheal wall, especially when the patient is agitated and manipulated, the catheter will be pulled, Displacement, long-term intubation, more obvious leakage of retentate on the balloon

In 2015, Philippart and other scholars published research results in the CHEST journal, showing that the improved conical airbags in recent years failed to reduce the incidence of VAP compared with cylindrical airbags.

Continuous suction has a greater risk of complications than intermittent suction; however, if the patient has a lot of secretions, intermittent suction cannot ensure adequate drainage of secretions and will also increase the risk of pulmonary infection

Therefore, there is no one in the prior art that can close the airway just enough to inflate the airbag, ensure the effective completion of positive pressure ventilation, avoid compressing and damaging the tracheal mucosa, and effectively prevent the retentate on the airbag from leaking into the lower respiratory tract; When performing subglottic suction, avoid complications such as airway mucosal damage, bleeding, even necrosis, irritating severe cough and discomfort, fundamentally prevent upper respiratory tract secretions from entering the lower respiratory tract and lungs, and effectively prevent lung infection Disposable leak-proof subglottic suction endotracheal tube

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