What is the role of compressed air for ventilators

The role and importance of compressed air for ventilators are as follows:

1. Core role

1. Maintain positive airway pressure

• The ventilator continuously outputs positive pressure air through compressed air to maintain pressure in the airway when the patient exhale and prevent the airway from collapsing.
• clinical application: Improve respiratory function in patients with sleep apnea syndrome, maintain tension in the upper airway, and reduce snoring and apnea incidents.

2. Assisted breathing and doing work

• By adjusting the inhalation/exhalation ratio and pressure support (PSV) function, the work done by the patient’s respiratory muscles is reduced and patients with respiratory dysfunction are helped to maintain effective ventilation.

3. Driving medical equipment

• Compressed air provides power source for medical equipment such as ventilators, pneumatic pumps, and valves to ensure stable operation of the equipment.

4. Improve gas quality

• Through a five-level filtration system (pre-filtration, activated carbon adsorption, carbon monoxide filtration, dust filtration, bacterial filtration), impurities and microorganisms in the compressed air are removed to ensure the safety of the transported gas.

2. Importance

1. life support

• In first aid, intensive care and postoperative recovery, compressed air from ventilators is the “lifeline” to maintain patients ‘respiratory function.

2. improve oxygenation

• By adjusting the inhaled oxygen concentration (21%-100%), combined with compressed air, optimize the patient’s oxygenation level and prevent hypoxemia.

3. reduce complications

• Stable positive pressure ventilation reduces the risk of ventilator-associated pneumonia (VAP) and atelectasis.

3. Compressor technical details

1. oil-free scroll compressor

• Oil-free design is adopted to avoid lubricating oil polluting gas. The exhaust volume of a single machine is ≥2.69m³/min. The redundancy of the two machines ensures the reliability of gas supply.

2. multistage filtration system

• accuracy: The oil content of the filtered gas is <0.003mg/m³, and the particulate matter is <0.01μm, meeting the ventilator gas standard.
• monitoring: Real-time detection of harmful gases such as carbon dioxide, carbon monoxide, and sulfur dioxide.

3. Gas storage tank and buffer system

• The gas storage tank capacity is ≥3m³, balancing the peak and trough of gas consumption and reducing the number of compressor starts and stops.

4. Intelligent control and alarm

• pressure regulating: The output pressure is adjustable from 0.6 to 1.0MPa, and the terminal pressure is no less than 0.4MPa.
• alarm function: Automatic alarm occurs when gas leaks, abnormal pressure, or excessive temperature occurs to ensure safe operation of the system.

4. Application scenario expansion

1. Neonatal respiratory support

• Premature infant breathing beds regulate oxygen concentration and airway pressure through compressed air, simulate the maternal environment and promote lung development.

2. surgery assistance

• During surgery, compressed air is used to blow open tissue, providing a clear vision and reducing surgical trauma.

3. rehabilitation treatment

• Combined with breathing training equipment, compressed air assists patients in pulmonary rehabilitation and improves their quality of life.

summary

Ventilator compressed air plays an irreplaceable role in first aid, intensive care, and rehabilitation treatment by maintaining positive airway pressure, optimizing oxygenation, and driving medical equipment. Its technical details focus on oil-free design, multi-stage filtration and intelligent monitoring to ensure gas quality and system reliability.