What is the role and use of medical compressed air

Medical compressed air is a kind of gas that has been strictly purified and plays a vital role in the medical field. Its central role is to power medical devices, support patient breathing, and meet specific needs during surgery and treatment. The following are the specific functions and uses of medical compressed air:

1. core role

1. provide power support
   • medical compressed air, as a clean, dry and oil-free gas source, provides stable power for a variety of medical equipment to ensure the normal operation of the equipment.
   • Its pressure, flow rate and purity must meet strict medical standards to avoid potential risks to patients.
2. Ensure respiratory safety
   • in respiratory support equipment, compressed air is mixed with oxygen and delivered to the patient to maintain respiratory function.
   • Gas composition, humidity and temperature need to be precisely controlled to suit the physiological needs of different patients.
3. Support for Aseptic Operations
   • medical compressed air needs to be filtered and dried to ensure sterility, dust-free and oil-free, and meet the requirements of high cleanliness environment such as operating room.

2. specific uses

1. respiratory support equipment
   • ventilator and Anesthesia Machine: Compressed air is mixed with oxygen and delivered to the patient through a ventilator to assist or replace his spontaneous breathing.
   • Hyperbaric oxygen chamber: In a high-pressure environment, compressed air is mixed with pure oxygen in proportion to treat carbon monoxide poisoning, decompression sickness and other diseases.
   • Neonatal respiratory support provide mild, stable respiratory support for premature infants or newborns with respiratory failure to reduce the risk of respiratory distress syndrome.
2. Surgical and therapeutic assistance
   • pneumatic surgical tools: Such as pneumatic drills, pneumatic saws, etc., using compressed air drive to achieve precise and efficient surgical operations.
   • Endoscopy: Compressed air is used to expand the lumen (such as gastrointestinal tract, respiratory tract), so that doctors can observe internal lesions.
   • Extracorporeal shock wave lithotripsy: Use compressed air to generate shock waves to crush stones in the body without surgery.
3. Medical Device Driver
   • dental Equipment: Such as dental drills, pneumatic scalers, etc., rely on compressed air to provide power to achieve efficient and comfortable oral treatment.
   • Hemodialysis machine: Compressed air is used to drive the dialysate circulation to ensure the stable blood purification process.
   • Medical oxygen generator: Some oxygen generators separate oxygen through compressed air to provide patients with high-concentration oxygen.
4. Laboratory and Research Applications
   • cell culture: Compressed air is used to drive the bioreactor to provide a suitable growth environment for the cells.
   • Gas Mixing in the laboratory, compressed air is mixed with oxygen, nitrogen, etc. to prepare a gas mixture with a specific concentration for scientific research experiments.
5. Hospital infrastructure support
   • pneumatic conveying system: Use compressed air to transport medicines, samples or medical waste to improve hospital logistics efficiency.
   • Pneumatic doors and windows in clean operating rooms, compressed air drives pneumatic doors and windows to reduce the risk of man-made contact with pollution.

3. Quality Requirements and Standards

medical compressed air must meet the following strict standards to ensure patient safety and therapeutic effectiveness:

1. oil content: ≤ 0.01 mg/m & sup3;(lower requirements for some equipment, such as ≤ 0.001 mg/m & sup3;).
2. Particulate matter: 0.1-0.5μm particles ≤ 20000/m & sup3;(conforming to ISO 8573-1 Class 1 standard).
3. Microorganisms: Total bacteria ≤ 1 CFU/m & sup3;(near sterile level).
4. Moisture content: Pressure dew point ≤-70 ℃ (to prevent equipment damage caused by condensed water).
5. gas composition: oxygen content 20%-23%, carbon dioxide content <500ppm, no toxic and harmful gases.

4. Typical Application Scenario Example

1. operating Room
   • compressed air drives pneumatic surgical tools while powering the anesthesia machine to ensure accurate and safe surgical procedures.
   • After purification by high efficiency filter, compressed air is used to expand the lumen, which is convenient for endoscopy.
2. Intensive Care Unit (ICU)
   • ventilators rely on compressed air mixed with oxygen to provide respiratory support to critically ill patients.
   • Hyperbaric oxygen chamber uses compressed air mixed with pure oxygen to treat carbon monoxide poisoning and other emergencies.
3. Department of Stomatology
   • dental drills, pneumatic scalers and other equipment use compressed air to achieve efficient and comfortable oral treatment.
   • Compressed air drives the inhaler to keep the oral cavity clean and improve the treatment efficiency.
4. Hemodialysis Center
   • compressed air drives the circulation of the dialysate to ensure a stable blood purification process.
   • Some dialysis machines use compressed air to prepare ultrapure water to improve dialysis quality.