Because of its clean, stable and precise control, compressed air systems in hospitals are widely used in many key areas to directly or indirectly support medical operations, equipment operation and patient care. The following are the main locations where compressed air systems are used in hospitals and their specific uses:
1. Operating room and anesthesiology department
- pneumatic surgical tools: Compressed air drives pneumatic drills, pneumatic saws, high-frequency electric knives and other surgical instruments to provide precise and stable power, reduce surgical trauma and shorten operation time.
- Anesthesia machine and ventilator compressed air is used as a gas source to drive the gas mixing system in the anesthesia machine to ensure the precise ratio of oxygen and anesthetic; at the same time, it provides power for the ventilator to assist the patient to breathe or maintain mechanical ventilation.
- pneumatic tourniquet: Through compressed air inflation, the blood vessels of the limbs are compressed to reduce surgical bleeding and improve the clarity of the surgical field of vision.
2. Intensive Care Unit (ICU) and Emergency Department
- respiratory support equipment compressed air provides power for ventilators and non-invasive ventilators (such as CPAP, BiPAP) to support the respiratory function of critically ill patients, especially as a backup gas source when oxygen supply is insufficient.
- Pneumatic suction device: Use compressed air to generate negative pressure to quickly remove patients' respiratory secretions and prevent suffocation or lung infection.
- First Aid Equipment: For example, defibrillators, CPR machines, etc. may rely on compressed air to drive some functions (such as pneumatic compression devices).
3. Dental Clinic
- dental Handpiece (High Speed Turbine): Compressed air drives the dental drill to rotate at high speed for tooth cutting, polishing or treatment, requiring stable air pressure and no oil pollution.
- Pneumatic Dental Cleaner: Spray water mist or particles through compressed air to clean dental plaque and calculus, and reduce the damage to teeth caused by mechanical friction.
- three guns: Integrated water spray, air jet, and spray functions, used to rinse the mouth, dry the tooth surface or assist in drug application.
4. Laboratory and Inspection Section
- pneumatic sample transfer system compressed air-driven pipeline transmission system can quickly and safely transport blood, urine and other samples from the collection point to the inspection equipment, reducing manual handling errors and pollution risks.
- Laboratory Instruments for example, centrifuges, automatic liquid separators, gas chromatographs, etc. may rely on compressed air to drive some mechanical components or control valves.
- Clean bench: The compressed air is filtered and used to maintain the local positive pressure of the laboratory clean bench to prevent external pollutants from entering.
5. Pharmaceutical and dispensing center
- pharmaceutical production equipment compressed air drive filling machine, tablet press, capsule filling machine and other equipment to complete the liquid dispensing, tablet pressing or capsule encapsulation process.
- Pneumatic mixing and stirring: During the liquid preparation process, compressed air is used to drive the stirrer or mixer to ensure the uniform distribution of the liquid medicine components.
- Cleaning and drying: Purge the surface of the equipment or the inside of the pipeline with compressed air to remove residual materials or moisture, which meets the requirements of GMP (Pharmaceutical Production Quality Management Practice).
6. Oxygen supply and pneumatic system standby
- oxygen supply assist in the oxygen station or pipeline system, compressed air can be used as a backup gas source, which can be temporarily replaced when the oxygen pressure is insufficient to ensure the safety of oxygen for patients.
- Pneumatic valve control: In the central air supply system of the hospital (such as oxygen, nitrogen, vacuum suction), compressed air drives the pneumatic valve to realize the automatic switching or pressure adjustment of the pipeline.
7. Disinfection and sterilization area
- pressure steam sterilizer: Compressed air is used to drive the sealed door, steam discharge valve or pressure control system of the sterilizer to ensure that the sterilization process meets the standards.
- Pneumatic cleaning equipment: In the process of cleaning and disinfection of instruments, compressed air drives the spray gun or pneumatic brush to improve cleaning efficiency and reduce manual contact pollution.
8. Hospital Logistics and Maintenance
- pneumatic tool maintenance: The maintenance department uses compressed air to drive pneumatic wrenches, spray guns and other tools for equipment maintenance or pipeline overhaul.
- Environmental Control: Compressed air may be used to drive pneumatic curtains, pneumatic doors or ventilation systems to optimize the internal environment of the hospital.
Key Requirements for Compressed Air Systems
the hospital has very strict requirements on the quality of compressed air, which must meet the following standards:
- oil-free, dust-free, sterile: Remove oil, particles and microorganisms through multi-stage filtration (such as oil removal filter, activated carbon filter, sterile filter) to prevent medical equipment failure or patient infection.
- dryness: Control the dew point temperature (usually ≤-40 ℃) to avoid pipeline corrosion or equipment damage caused by moisture.
- Pressure stability: Ensure that the air pressure fluctuation is within ± 5% to meet the operating requirements of precision medical equipment.
- Standby power supply: Compressed air system shall be equipped with uninterruptible power supply (UPS) or emergency generator to prevent shutdown of critical equipment due to power failure.
Summary
compressed air systems in hospitals are the "invisible infrastructure" that supports medical operations, equipment operations, and patient care, with applications covering core areas such as operating rooms, ICUs, dentistry, laboratories, and pharmaceutical areas. Through strict quality control, the compressed air system not only guarantees medical safety and efficiency, but also promotes the development of hospitals in the direction of intelligence and automation.
