What are the advantages and disadvantages of venturi oxygen mask compared with ordinary masks

Summary: Venturi oxygen mask is a kind of venturi device, which is an oxygen mask made according to the venturi effect, the principle of which is manifested in the fact that low pressure will be generated near the high-speed flow fluid, which will result in the adsorption effect, so that the venturi oxygen mask can provide high oxygen flow and accurate oxygen concentration. Venturi masks have many advantages over regular oxygen masks, although real-time monitoring is required at high oxygen flow rates to avoid drying out the patient's airway mucosa. Used oxygen masks are infectious waste and need to be disposed of properly. Here's what you need to know about venturi masks. First, what is the Venturi mask

Venturi mask (Venturi) refers to the use of the Venturi principle of a certain flow rate of air and oxygen mixing, the formation of high-speed airflow and then delivered to the patient a kind of oxygen therapy equipment. As a kind of high-flow oxygen delivery system, Venturi mask can provide up to 50% oxygen concentration, oxygen flow rate of more than 40L/min, with high flow rate, oxygen concentration is more accurate characteristics, widely used in clinical.

The principle of the venturi mask is: when a certain amount of flow of oxygen through the cross-sectional area of the smaller jet hole, the flow rate increases to form a high-speed airflow, generating a certain amount of negative pressure, and then involved in the surrounding air, and ultimately the formation of high-flow air-oxygen mixing airflow. According to its principle, it can be seen that the inhalation of oxygen concentration and the caliber of the jet hole, the air inflow caliber and the size of the oxygen flow rate, so the venturi mask can be adjusted to achieve different oxygen concentration by adjusting these parameters.

Two, venturi oxygen mask and ordinary mask than what are the advantages and disadvantages

Venturi oxygen mask relative to the use of ordinary masks, its biggest advantage is that it can provide a higher flow rate and higher accuracy of oxygen concentration. On the one hand, when the flow rate provided is higher than the patient's peak inspiratory flow rate, the patient will not inhale the surrounding air, which ensures that the oxygen concentration is stable and precisely controllable. On the other hand, the high flow rate can have a certain flushing effect on the patient's exhaled air, preventing repeated breathing.

But the disadvantage of the venturi oxygen mask is also obvious, that is, the high-flow airflow may cause the airway mucosa to dry out, so you need to pay attention to real-time monitoring of the patient's condition when you use it.

Three, used oxygen masks belong to what waste

Patients used oxygen masks belong to infectious waste.

In accordance with the classification of medical waste catalog, infectious waste is characterized by carrying pathogenic microorganisms with the risk of infectious disease transmission of medical waste, by the patient's blood, body fluids zd, excreta contaminated items belong to the infectious waste, including cotton balls, swabs, draining tampons, gauze, and other dressings; single-use sanitary products, single-use medical supplies and disposable medical equipment; discarded clothing; other medical equipment used by the patient. The waste clothing; other items contaminated by the patient's blood, body fluids, and excretions.

The oxygen mask used by the patient belongs to disposable medical equipment, which is regarded as disposable infectious waste and needs to be handled properly to avoid cross-infection.