The science behind Ultra Clean Ventilation (UCV) Theatres.

October 5, 2016

Research indicates that the level of post-operative infection is directly proportional to the level of airborne bacteria within an operating room.

It is generally accepted that “clean surgery” with a moderate or high risk of infection should be carried out in an ultra-clean atmosphere. The agreed international definition of ‘ultra clean’ is air containing less than 10 Colony Forming Units per cubic meter (< 10 CFU/m3).

By bathing the patient in sterile HEPA filtered air, a UCV canopy, when utilised as part of a well maintained HVAC system will ensure that air in the “clean zone” contains less than 10 CFU/m3. This figure typically reduces to 5 CFU/m3 when the surgical team is wearing modern occlusive gowns and masks. Tests have also indicated that a further reduction to levels of around 1 CFU/m3 is possible by utilising Body Exhaust Systems (BES).

The effective operation of a UCV system is wholly reliant on the regular maintenance of the entire supply HVAC system from inlet to exhaust. Should any part of the system, whether AHU, filters, ductwork, dampers, heaters or chillers fail or operate sub-optimally, then the UCV’s ability to provide clean air will be compromised.

Daray offers several lighting solutions for UCV theatres the SL400 Series and the SL700 Series.

Available as a ceiling mounted or a mobile light, high quality with robust build strength from a British Designer and Manufacturer.