The hospital uses Leybold dry central vacuum system units
The history of mankind's acquisition of a vacuum can be traced back to the 6th century BC. Smelting furnaces and alchemy furnaces are equipped with negative pressure suction and pressurized exhaust, oil-free compressors, high-pressure machines, Leybold vacuum pumps, dry screw vacuum pumps, rotary vane vacuum pumps, and screw air compressors. Used by hospitals. At the same time, the Chinese were also the first people to use medical vacuum systems. In the Western Han Dynasty, there was a record of "corner method" treatment, which is what we commonly call "cupping", which makes full use of the expansion and contraction of air and the condensation of steam to form a vacuum for treatment.
Some hospitals have built high-pressure rooms for patients to breathe high-pressure air or oxygen. Hyperbaric therapy is often used when a patient’s tissue or blood requires a higher than normal concentration of oxygen. It can effectively treat carbon monoxide poisoning and respiratory disorders, and it is also promising in combination with surgery. The use of decompression technology is similar to its use in deep sea diving. For inhalation therapy, clean and dry air is supplied by a few inches of water with positive pressure to the respirator in the unpressurized treatment room. Oil-free compressors are usually used to provide compressed air for hospitals. In the optional system that provides breathing air (patients can conveniently use it in the hospital or at home), the oxygen-rich air passes through a molecular sieve filter to remove nitrogen from the atmosphere. After this oxygen concentration process, the oxygen concentration can be Reach 90% to 95%. The high-speed turbine driven pneumatic surgical drill has exciting capabilities. In cranial surgery, it can shorten the time for the surgeon to remove the skull to two minutes, while using hand tools requires half an hour. It can also be used to incise the transplanted thoracic cartilage to form a simulated artificial ear, and to shape grafted bones to recreate a severely damaged nose. Pneumatic drill is very light, but it improves the speed and power of bone cutting, drilling and shaping. Powered compressed air or nitrogen is discharged at the tip of the drill to cool the cutting area. The device that controls the air conditioning and humidity in the hospital operating room is driven by compressed air. Nurses use compressed air to clean urinary catheters and other catheters, and to spray drugs. When inlays or sponge washes cannot provide a clean operating environment for surgeons, vacuum is used to remove blood stains and secretions during surgery. The operating room is pressurized to remove dust. The pneumatic door of the operating room is operated by foot pedals. Hospital laboratories, laundry rooms, and other maintenance departments also use compressed air in many ways.
