Questions and answers about laminar flow operating room
Release time:2019-12-05 source:
Questions and answers about laminar flow operating room
01
What is laminar flow operating room? What does it have to do with the clean operating room mentioned in gb50333?
Cleanliness: clean is a professional term in air filtration technology. Class 1-class 9 is used in iso14644-1 "clean room and related control environment Part 1: classification of air cleanliness" to express air cleanliness. We are used to express class 100-300000, and class 100 is equivalent to class 5. Iso14644-1 defines "clean room" as follows: "for the room with controlled concentration of airborne suspended particles, the construction and use of the room shall minimize the introduction, generation and retention of particles in the room, and other relevant indoor parameters such as temperature, humidity and pressure shall be controlled as required". Cleaning is a technology to minimize the entry, generation and retention of dust particles.
Operating room purification workshop purification laboratory purification
Laminar flow: it is a kind of clean technology. According to the indoor air flow pattern of clean air flow, stratified flow and turbulent flow. Laminar flow is divided into vertical laminar flow and horizontal laminar flow according to the air flow direction. In the clean room, the air flows along the parallel streamline with uniform section speed. The hospital's Grade 100 clean operating room is a local vertical laminar flow (the operating area is Grade 100 air cleanliness). Turbulence can be divided into top delivery and side delivery according to the air flow organization form. The air flow direction is variable, and there is eddy current area, which can only reach the cleanliness below class 1000, such as class 1000, class 10000 and class 100000 clean operating rooms in hospitals.
02
What kind of operation must use laminar flow operating room?
It is mainly used in neurosurgery, heart, organ transplantation, total joint replacement, ophthalmology, large area burn skin grafting and other deep major operations.
03
What accounts do laminar flow operating rooms need?
1. Daily record of cleaning system opening
2. Daily record of temperature, humidity and static pressure difference in operating room
3. Disinfection record of the surface of the objects between the stations every day
4. Wipe and disinfect records every morning
5. Final disinfection record every night
6. Record of weekly cleaning of air return filter screen
7. Monitoring record of quarterly air cleanliness
8. Maintenance records of cleaning system
04
The new laminar flow operating room has passed the completion acceptance, so do we need to monitor it again when using the front hospital department?
WS / t368-2012 management code for hospital air purification
8 monitoring of air purification effect
8.2 monitoring requirements
8.2.1 monitoring frequency
The hospital shall monitor the departments with high risk of infection on a quarterly basis; the clean operation Department (room) and other clean places shall be monitored during the acceptance of new construction and reconstruction as well as after the replacement of high efficiency filter.
05
Is the air sampling time of laminar flow operating room 15 minutes or 30 minutes?
According to the requirements of gb50333, class 100 laminar flow operating room is equivalent to the standard of class 5 air cleanliness in operating area, and the sampling time of sedimentation method is 30min.
06
Vi. how often should the air return filter be cleaned? How long should the cleaning system be maintained?
WS / t368-2012 management code for hospital air purification
5.3 air cleaning technology
5.3.2 maintenance and servicing requirements
5.3.2.1 air handling unit and fresh air unit shall be inspected regularly to keep them clean.
5.3.2.2 the coarse efficiency filter screen of the fresh air unit should be cleaned every two days; the coarse efficiency filter should be replaced from January to February; the medium efficiency filter should be inspected every week and replaced every three months; the sub high efficiency filter should be replaced every year. Replace in time in case of pollution and blockage.
5.3.2.3 the end high efficiency filter should be inspected once a year, and should be replaced when the resistance exceeds the design initial resistance of 160pa or has been used for more than 3 years.
5.3.2.4 the medium efficiency filter in the exhaust unit should be replaced every year, and it should be replaced in time in case of pollution and blockage.
5.3.2.5 regularly check the filter screen at the air return outlet, which should be cleaned once a week and replaced once a year. In case of special pollution, replace it in time and wipe the inner surface of return air port with disinfectant.
5.3.2.6 special maintenance and management personnel shall be set up to follow the instructions for use of equipment for maintenance and repair; operation manual shall be prepared with inspection and records.
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