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Technical articles|Wide mouth low speed air supply device in operating room

Technical articles|Wide mouth low speed air supply device in operating room

  • Time of issue:2021-08-12

(Summary description)The operating room (o.r in English abbreviation) is a place that provides surgery and rescue for patients, and is the core area of ​​infection control in a hospital. According to the definition of GB50333-2013 "Technical Specifications for Construction of Clean Operating Departments in Hospitals", there are 4 levels of traditional operating rooms in the classification of clean operating rooms, as shown in the following table:

Technical articles|Wide mouth low speed air supply device in operating room

(Summary description)The operating room (o.r in English abbreviation) is a place that provides surgery and rescue for patients, and is the core area of ​​infection control in a hospital. According to the definition of GB50333-2013 "Technical Specifications for Construction of Clean Operating Departments in Hospitals", there are 4 levels of traditional operating rooms in the classification of clean operating rooms, as shown in the following table:

  • Categories:典型应用
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  • Time of issue:2021-08-12 15:03
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The operating room (o.r in English abbreviation) is a place that provides surgery and rescue for patients, and is the core area of ​​infection control in a hospital. According to the definition of GB50333-2013 "Technical Specifications for Construction of Clean Operating Departments in Hospitals", there are 4 levels of traditional operating rooms in the classification of clean operating rooms, as shown in the following table:

The cleanliness level of the operating room is closely related to the efficient and safe operating room air purification system. The air purification system can not only ensure the sterile environment of the operating room, but also prevent cross-infection of personnel and play a major role in ensuring the success of the operation. It was indispensable key supporting system in operating room.

The traditional theory believes that the air supply device of the clean operating room should have two basic functions. One is to quickly replace all the contaminated air in the operating area with dust-free sterile air to ensure that the surgical site is clean and sterile; the other is to prevent the outside air flow from being too low. Clean air penetrates into the operating area. In addition, the temperature and humidity control of the air supply in the operating room can ensure that the surgeon can operate in a comfortable environment. However, because the air supply of the traditional operating room air supply device is delivered at the same temperature and at the same speed, it is difficult to improve the anti-interference ability of the air flow, so patients may suffer from hypothermia.

MayAir focuses on promoting the development of domestic high-end air purification technology. Under the guidance of Professor Shen Jinming and Professor Liu Yanmin of Tongji University, MayAir developed a special-purpose wide-mouth and low-speed air curtain for different temperatures and speeds air supply system for operating rooms.

The different-temperature and different-speed air supply system with wide-mouth and low-speed air curtain is a new type of air supply method. Wide-mouth low-speed air curtains are used on both sides of the air supply device to protect the main laminar air flow in the middle. In addition to meeting dust-free and sterile control, wide-mouth low-speed air curtains are used on both sides to cover surgeons to meet their comfort requirements, and the main laminar air flow in the middle covers the patient, participating in the temperature management of the patient during the operation, and preventing hypothermia disease.

According to the needs of the operation, the two sides of the air curtain and the main laminar air supply of the wide-mouth low-speed air curtain air supply device in the operating room can be combined with different sizes, wind speeds, and temperature differences. Using computational fluid dynamics CFD to simulate the temperature field of different combinations of wide-mouth and low-speed air supply devices in the operating room, and analyze the impact on the comfort of operators and patients.

  Longitudinal section views of doctor's position simulation

  Longitudinal section views of patient lying simulation

  Doctor and patient simulation horizontal cross section

The different-temperature and all-speed air supply system with a wide-mouth and low-speed air curtain in the operating room can be used in the I-II class operating room. It enhances the anti-interference power of the clean air supply in the operating room, ensures a clean and aseptic area, and meets the temperature and humidity requirements of doctors and patients at the same time. It is a technology with independent intellectual property rights.

More importantly, in conjunction with the air-conditioning purification air supply system, the operating room's different temperature and all-speed air supply system with a wide opening and low-speed air curtain can switch between positive and negative pressures. Under the special background of the current Coronavirus, it can effectively protect doctors, patients and patient and environment safety.

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