Cannula Automatic aeration unit for air bag of intubation

Abstract

An automatic aerator unit for the ai bag of intubation is composed of respiratory machine, air filling tube, exhalation tube, trachea can nula, air bag, and an automatic aerator arranged on the air filling tube for automatically filling air in said air bag according to the pressure of air filling tube.

Description

Technical field: [0001] The invention belongs to the field of medical equipment, and in particular relates to an air bag automatic inflator for patient trachea intubation. Background technique: [0002] At present, the use of clinical ventilator and anesthesia machine is very extensive, involving patients with endotracheal intubation, the existing ventilator is to insert a tracheal tube into the patient's trachea, and there is an air bag at the front end of the endotracheal tube, and the inflation method of the air bag is to use The syringe manually injects 4-10ml of air from the airbag inflation tube to inflate the airbag and press the patient's tracheal wall to prevent the gas in the airway from overflowing from between the catheter and the tracheal wall. The end of the catheter is connected to the Y-shaped interface of the ventilator, so that the ventilator can The patient sends air through the trachea, so that the patient performs a passive inhalation action. When exhali...

AI Technical Summary

Problems solved by technology

[0005] 3. For the existing tracheal intubation, the air bag is generally deflated for 5-15 minutes every 2-3 hours to restore the blood supply to the tracheal wall tissue compressed by the air bag. It is not convenient for clinicians to operate and manage. The most important thing is: the airbag pressure is greater than 30 cm water column, which will compress the trachea wall and cause tissue ischemia (capillary microcirculation perfusion pressure is about 30 cm water column), if the pressure is between 8-30 cm water column During the period, it will also compress the venous return of the microcirculation and tissue lymphatic return, (the venous return pressure of the capillary microcirculation is about 8 cm water column), causing the stasis and edema of the compressed tissue, the blood cannot circulate, and the local compressed tissue will still be necrotic

Therefore, no matter how much pressure is used in the existing air bag inflation method, it will compress the tracheal wall, causing damage, and even necrosis, erosion, hemorrhage or perforation, which is the most common complication in the use of clinical anesthesia machines and ventilators.

Images