Does the hospital use compressed air?

Hospitals will make extensive use of compressed air its application in the medical field runs through multiple links such as diagnosis and treatment, surgery, equipment operation and patient care, and is one of the key infrastructures to ensure medical safety and efficiency. The following analysis is carried out from three dimensions: application scenarios, equipment requirements, and system management:

core Application Scenarios of 1. Hospital Compressed Air

1. surgery and Intensive Care
   • power source: Compressed air provides power for pneumatic surgical tools (such as pneumatic drills, bone saws, and high-frequency electric knives) to ensure the accuracy and stability of surgical operations.
   • respiratory support: In the intensive care unit (ICU), after compressed air is mixed with oxygen, the patient is provided with respiratory support through a ventilator to maintain vital signs.
   • anesthesia system anesthesia machines rely on compressed air to drive gas mixing and delivery, ensuring precise dosage control of anesthetic.
2. Medical Equipment Operation
   • dental Equipment dental chair, pneumatic scaler and other equipment need compressed air drive, to achieve efficient cleaning and treatment.
   • Laboratory Instruments precision instruments such as gas chromatographs and mass spectrometers require dry, oil-free compressed air as carrier gas or power source.
   • Oxygen making machine and nitrogen making machine: Compressed air is used as raw material to produce medical oxygen or nitrogen through molecular sieve adsorption technology to meet clinical needs.
3. Patient Care and Rehabilitation
   • atomization therapy: Compressed air atomizes the drug into tiny particles, which is convenient for patients to inhale and treat respiratory diseases.
   • Rehabilitation Devices such as pneumatic massage bed, rehabilitation training equipment, the use of compressed air to achieve functional assistance.
4. Hospital infrastructure
   • pneumatic conveying system: Transport medicines, specimens or meals through compressed air-driven pipelines to improve logistics efficiency.
   • Cleaning and Disinfection: High-pressure air guns are used to clean the surface of medical equipment or equipment, and compressed air drives automatic film processors and other equipment.

Special requirements for compressed air in 2. hospitals

1. strict quality standards
   • oil content: To be reached level 0 (≤ 0.01 mg/m & sup3;) to avoid oil pollution respiratory system or affect the performance of precision instruments.
   • Dust content: The diameter of the particles should be ≤ 0.1 μm to prevent the particles from entering the patient's body or blocking the equipment.
   • Moisture content: The dew point temperature is usually ≤-40°C to ensure that the compressed air is dry and to avoid the risk of equipment failure or infection caused by condensed water.
   • microbial control: It is necessary to remove bacteria, viruses and other microorganisms through a high-efficiency filter (such as 0.01μm grade), which meets the requirements of medical sterility.
2. gas supply stability
   • uninterrupted supply: Operating room, ICU and other key areas need 24 hours of continuous gas supply, equipped with dual system or backup power supply, to prevent the risk of gas failure.
   • pressure fluctuation control the pressure fluctuation range should be ≤ ± 0.05MPa to ensure stable operation of the equipment and avoid the impact of pressure mutation on the treatment effect.
3. Security and Compliance
   • explosion-proof design compressed air system shall comply with explosion-proof standards to avoid fire or explosion caused by static electricity or high temperature.
   • Compliance Certification ISO 13485 (Medical Device Quality Management System), ISO 8573-1 (Compressed Air Quality Standard) and other international certifications are required.

Typical Configuration of Compressed Air System in 3. Hospital

1. selection of air compressor
   • oil-free screw air compressor: Mainstream choice, oil-free compression through ceramic screw rotor or water lubrication technology to avoid oil pollution.
   • Micro-oil air compressor multistage filtration: Some scenes use micro-oil air compressors, but need to be equipped with post-processing equipment such as pre-filters, coalescing filters, activated carbon adsorption tanks, etc., to ensure that the oil content reaches the standard.
2. Post-processing equipment
   • freeze dryer: Reduce the temperature of compressed air and remove most of the moisture.
   • adsorption dryer: Further deep drying to make the dew point temperature below -70 ℃.
   • Precision filter classified filtration (such as 3μm, 1μm, 0.01 μm) to remove particles and microorganisms.
   • Sterilization unit such as ultraviolet sterilizer or ozone generator, to ensure that the air is sterile.
3. Gas tank and pipeline
   • gas tank: Buffer pressure fluctuations and store compressed air to cope with sudden demand.
   • Stainless steel pipeline316L stainless steel is used to avoid corrosion and secondary pollution. The pipeline design must meet the requirements of medical cleaning.

4. practical application cases

• integrated air supply system for operating room: The compressed air, oxygen, negative pressure suction, etc. are integrated into the same pipeline system, and the pressure, flow and quality are monitored in real time through the intelligent control panel to ensure the safety of the operation.
• Air compressor for dental clinic: The small oil-free air compressor is placed directly in the consultation room and connected to dental equipment through a short pipeline to reduce pressure drop and contamination risk.
• ICU Ventilator Supply: Adopt a two-way compressed air system, one main supply and one standby, and automatically switch through the pressure sensor to ensure the uninterrupted operation of the ventilator.