Operating rooms, especially high-level laminar flow operating rooms, have special requirements for interior decoration, so that they can meet the functional requirements and reduce the dust generated or accumulated by materials and structures, which is essential to prevent pollution and reduce the infection rate after operation. According to this principle, we sum up the matters needing attention in wall and ceiling decoration.
1. Wall Decoration
Nowadays, the walls of the newly built clean operating room are usually constructed with light steel keel partition wall, which facilitates the concealed installation of various pipelines and wall fixtures used in the operating room. Surface decoration requires materials with high hardness, good integrity, few joints and tight cracks. Commonly used are stainless steel plate, aluminium alloy plate (all should be matt) or other composite profiles. Back can be attached to improve impact resistance, thermal insulation and heat insulation performance according to need. The sealant or special filler is used to fill the joint of the panel, and the wall is integrated with the feeding, return air outlet and observation window, wall fixed instrument cabinet and medicine cabinet, so as to minimize the concave and convex surfaces and cracks.
The wall generally requires vertical floor, but some experts suggest that the wall can be made into an inclination of 3 degrees, which can not only reduce dust accumulation, but also make the angle of light reflection conducive to the operation of medical personnel.
2. ceiling decoration
The bottom of the roof needs to be equipped with high-efficiency filter air outlets, lighting fixtures, smoke extinguishers, etc. All kinds of pipelines need to be hidden in the roof, so the roof part is the key part of the interior decoration of the clean operating room. It is better to use light steel keel and large panel material as ceiling (basically, the board used for wall can be used as ceiling cover panel, as mentioned above). The vibration of the air duct on the ceiling has more influence, so it is more important to control the vibration shedding than to control the surface hardness of the material. Ceiling cover material should be sealed by sealant filling or pressing strip to form a whole, so as to prevent dust from polluting airflow in clean operating room through crevices in the ceiling space.
The Yin (Yang) angle between the wall and the flat roof, the wall and the ground and the intersection of different walls and walls in the clean operating room should be made into small rounded corner structure (R < 50mm), so as to avoid dust accumulation and facilitate cleaning. There are also many clean operating rooms which connect the wall with flat roof and the intersection of wall and wall with inclined plate, which is more conducive to reducing dust deposit and eliminating airflow swirl zone.
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