ICU, central supply room why do purification?

Hospital infection is the world's public **** health problems, has aroused widespread concern in the community, and intensive care unit (ICU) of hospital infections is the ordinary ward 3 times ~ 4 times, of which the lower respiratory tract infection is the most, and the ICU environment of the air bacterial contamination is caused by the lower respiratory tract infection can not be ignored factors. With the development of modern medicine, air laminar flow ward creates good conditions for the prevention of exogenous infections and is widely used.ICU is an important place for diagnosis, treatment and rescue of patients in hospitals, and it is a place for centralized monitoring and treatment of critically ill patients, and is an important technical department in hospitals. Its environment is characterized by many medical personnel, frequent contact with patients and high density of personnel flow. Coupled with the medical equipment, operation, patient intubation invasive monitoring and treatment of arterial and venous catheter insertion, transfusion of blood or other products, more patient complications. With the rapid development of clinical medical science, the classification of diseases is becoming more and more detailed, more and more difficult, and the requirements for ICU are also becoming higher and higher, which also prompts the development of ICU discipline to be more professional and more modernized. The creation of purified ICU is a necessary condition for the development of hospitals. By adopting purified air conditioning system, the temperature and dust content of the room are effectively controlled, creating an ideal high-clean environment, reducing the infection rate of patients and improving the quality of medical care. However, the air purification system is a highly sophisticated equipment system that creates and maintains a specified level of cleanliness in a certain space by employing a complete set of clean technologies, relying on physical action rather than chemical methods. Therefore, the air purification system must be strictly managed in order to ensure effective sterilization function and achieve the ultimate goal of cutting off infection pathways and avoiding perioperative patient infections.

The working principle of laminar flow ward purification: based on the air purification unit equipment, through the multi-stage air filtration system, to remove bacteria, dust and pathogenic microorganisms in the air of the ward, and at the same time, to control the flow of the air of the whole ward and circulate the processing, with the function of sterilization and disinfection, regulating the temperature, humidity, etc., so as to make the sick area always maintain a stable state of cleanliness and a comfortable temperature and humidity. Air purification system cycle of the general procedure: indoor air → return air (filter disinfection) → purification of air-conditioning equipment (supplemental fresh air → fan pressurization → filtration → temperature and humidity regulation) → air supply (filter disinfection) → indoor.

(1) Management of equipment Closely monitor the purification air conditioning system to see if it is functioning properly, keep the indoor temperature, humidity, indoor pressure, etc. normal, and check the air purification system on a regular basis according to the results of the air cultivation to ensure that the system is functioning properly.

(2) purification management to keep the room relatively airtight, indoor items relatively fixed, reduce the number of staff in and out. As the indoor 24 h continuous air ventilation, always in the "purified state" and maintain a certain constant temperature and humidity, so a variety of instruments and equipment placed in a fixed manner to reduce the frequency of moving and staff walking and the number of times in and out.

(3) sewage disposal management Timely processing of medical waste, patient excreta to the sewage room, cleaning staff should often clean up the sewage room, less pollution spread.

(4) cleanliness and hygiene management Every day, workers use water to scrub indoor walls, glass windows 1 time, wet mopping in the morning, noon, afternoon 1 time, with chlorine disinfectant to scrub the switch buttons, door knobs, on the morning, in the middle of the afternoon, 1 time, with chlorine disinfectant when there is a secretion or blood contamination scrubbing, 1 time a day, with a wet cloth of water to scrub the walls, walls, windows, bed linen, instruments and equipment and all the items on the surface, countertops, dust wiping. Dusting of the walls and windows, bed sheets, instruments and equipment, and all surfaces and countertops. Ensure the cleanliness of ICU laminar flow ward.

(5) medical personnel pollution control management of medical personnel half a month to do a hand bacterial culture, every month to do a whole body clothing bacterial culture, bacterial count should be ≤ 10 cfu/m3. pay attention to keep clothes clean. Reduce the carrying of their own bacteria. Medical personnel's clothing with more or less pathogenic microorganisms, the more people in and out of the ICU laminar flow ward, the greater the flow of people, the more indoor air pollution, so we must strictly control the entry and exit of personnel. All the staffs entering the ICU should wear working clothes or isolation clothes, change into shoes, wear masks and hats, and wear out clothes and shoes when going out. Prohibit the patient's family to accompany, the number of visitors to the appropriate control.

(6) Keep the laminar flow ward relatively airtight, indoor items to maintain a relatively fixed, reduce the number of people in and out. Ward should pay strict attention to close the door and electric door prohibit long open door, maintain indoor positive pressure and constant temperature and humidity. Strictly in accordance with ISO9001 quality standard management system.

In summary, the laminar flow ward to prevent exogenous infections to create good conditions, but the air purification system is not the only condition to maintain air cleanliness, laminar flow ward is not a clean air "safe". Therefore, it is necessary to strengthen the management, strict monitoring, the establishment of a set of standard workflow and testing system, to achieve the institutionalization of laminar flow ward, standardization, routinization.