The operating theatre ceiling meets these requirements with a laminar flow blowing system for the distribution and filtration of air in surgical rooms, utilizing hygienic ventilation techniques. The laminar flow blowing system is mounted above the operating table on the operating theatre ceiling. The system consists of stainless steel air distribution box, HEPA filters, laminar flow unit, and connection for the surgical pendant light. The transparent air distributor can be lowered for easy maintenance and disinfection procedures. The laminar flow unit vertically directs laminar airflow downward towards the surgical table, creating a laminar flow of air. This effectively removes existing particles, dust, and microorganisms from the environment at an approximate air speed of 0.25 m/s within the flow field. Unlike conventional ventilation systems, turbulence is minimized, ensuring a high level of cleanliness around the surgical table during operations.
– Removal of particles and microbes from the operating area through laminar flow,
– Meeting the requirements of DIN 1946, especially for operating rooms requiring high levels of sterility,
– Convenient disinfection and maintenance,
– Easy connections for differential pressure monitoring and leak testing,
– Easy installation on all ceilings,
– Besides ensuring thermal comfort in places like operating theaters that require special conditions, the most critical aspect is to reduce airborne microbial pollutants and particle concentrations to the lowest levels in accordance with standards, and to ensure the air flows in a laminar manner without turbulence and in a single plane.
– These requirements cannot be met by a standard ventilation system. Laminar flow devices are designed to meet these conditions by allowing conditioned air to come into contact only with stainless steel surfaces and HEPA filters, and then passing through a laminarizer (special diffuser) to reach the operating table as laminar flow.
– By-pass leaks in filters are prevented by applying sealing elements to mechanical joint surfaces.
Figure a : Operating theatre with laminar flow, Figure b: Operating theatre without laminar flow.
