Acceptance & periodic examination of operating theatres

Operating theatres, intensive care, isolation ward

Operating theatres are the heart of any hospital or practice with procedure rooms. With their years of experience, the experts at Gesa Hygiene-Gruppe will help you from creation, acceptance and requalification to periodic cleaning.

Our services:

Specialist operating theatre planning

  • Support for developers when drafting the medical hygiene tasks for the planning of new operating theatres and renovation of existing ones
  • Assessment of draft and detailed plans by architects and general/detailed planners
  • Support for building contractors throughout the construction process

DIN 1946-4:2008-12-compliant hygienic acceptance testing and technical acceptance testing of newly established operating theatres

  • DIN EN ISO 14644-3-compliant filter fit and integrity testing
  • Supply air, exhaust air and overflow flow rate for operating theatre
  • Direction of overflow to operating theatre doors
  • Direction of overflow to ceiling cavity in the operating theatre false ceiling
  • Distribution of supply air speed and temperature at distributor
  • Average of supply and exhaust temperature
  • Temperature difference of average room air temperature minus average supply air temperature
  • Surface temperature of the surfaces surrounding the room (walls, ceiling, floor, etc.)
  • Comfort parameters across operating table (air speed, degree of turbulence, air temperature,
  • sound pressure level, relative humidity)
  • Flow visualisations in accordance with Appendix B
  • Determination of protection class
  • At the customer's express request: Degree of turbulence measurement in accordance with Appendix D
  • Definition of the borders of the protected area
  • Hygiene inspection of HVAC system and areas supplied by the HVAC systems
  • DIN EN ISO 14644-3-compliant recovery test in class 1b operating theatres

Periodic room inspections in accordance with Table 1: DIN 1946-4:2008-12-compliant inspections of rooms established within a period ≤ 36 months

  • Minimum outdoor air and overall volume flow check for each room
  • Operating theatres: DIN 1946-4:2008-12-compliant technical inspections on operating theatres established within a period ≤ 36 months
  • Room air temperature, room air velocity, relative humidity, sound pressure level and outdoor air rate testing
  • DIN EN ISO 14644-3-compliant filter fit and integrity testing
  • Value and distribution of supply air discharge speed, calculation of overall supply air flow rate
  • Value and distribution of supply air discharge temperatures, calculation of average supply air temperature
  • Value and distribution of room air temperatures, calculation of average room air temperature
  • Temperature difference of average room air temperature minus average supply air temperature
  • Comfort parameters above operating table (air speed, degree of turbulence, air temperature, sound pressure level, relative humidity)

Operating theatres: DIN 1946-4:2008-12-compliant hygiene inspections on established operating theatres - inspection period ≤ 12 months

  • Direction of overflow to operating theatre doors
  • Direction of overflow to ceiling cavity in the operating theatre false ceiling
  • Microbiological monitoring
  • Flow visualisation of discharge behaviour and shielding of protection area in accordance with Appendix B
  • DIN EN ISO 14644-3-compliant recovery test in class 1b operating theatres - inspection period ≤ 24 months

Operating theatres: Hygiene inspections of existing operating theatres in accordance with Annex B.2 - inspection period ≤ 12 months
(in the case of special regulations in individual federal states)

  • Particle counting in all class I rooms directly in the supply air, aerosol delivery where necessary
  • Airborne germ concentration measurement in supply air for class I rooms (scope to be determined by hygiene expert)
  • Evidence of direction of flow for rooms in operating theatre department at peak and partial load

Disinfection

  • Periodic cleaning and disinfection of entire operating theatres
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