Relevance and implications of positioning analysis for infection-preventive effectiveness of ventilation systems with low-turbulence dis-placement flow

Ventilation technology in German operating rooms is regulated by DIN 1946-4. Since the release of the latest version in 2018, a positioning analysis (worst-case scenario with the largest space requirement) for determining the required protected area in class 1a operating rooms is mandatory. The aim...

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Autores principales:	Bulitta Clemens, Schlautmann Burkhard
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2020
Materias:	din 1946-4:2018 positioning analysis tav system protected area surgical site infections Medicine R
Acceso en línea:	https://doaj.org/article/2008c20df660447b847a712d848debe5
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id	oai:doaj.org-article:2008c20df660447b847a712d848debe5
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spelling	oai:doaj.org-article:2008c20df660447b847a712d848debe52021-12-05T14:10:42ZRelevance and implications of positioning analysis for infection-preventive effectiveness of ventilation systems with low-turbulence dis-placement flow2364-550410.1515/cdbme-2020-3078https://doaj.org/article/2008c20df660447b847a712d848debe52020-09-01T00:00:00Zhttps://doi.org/10.1515/cdbme-2020-3078https://doaj.org/toc/2364-5504Ventilation technology in German operating rooms is regulated by DIN 1946-4. Since the release of the latest version in 2018, a positioning analysis (worst-case scenario with the largest space requirement) for determining the required protected area in class 1a operating rooms is mandatory. The aim of this investigation was to use typical workflow scenarios to assess existing installations regarding the match of the required and the built size of the protected area. Positioning analyses were carried out together with the on-site staff for various clinical procedures in 2 hospitals to assess the built versus required protected areas. In all cases, the positioning analysis revealed that required protected areas need to be significantly larger than provided by the existing setup. The size of the protected area that is actually required can only be determined by individual positioning analysis. Most existing installations of low turbulence displacement flow systems (TAV) are likely to be too small. The larger protected areas actually require significantly larger rooms in order to maintain proper thermodynamics. Furthermore, significantly higher volumetric flow rates are required. Finally, the current mismatch between actual and necessary protected area would be a possible explanation for the controversial data situation regarding the infection preventive effects of TAV systems.Bulitta ClemensSchlautmann BurkhardDe Gruyterarticledin 1946-4:2018positioning analysistav systemprotected areasurgical site infectionsMedicineRENCurrent Directions in Biomedical Engineering, Vol 6, Iss 3, Pp 304-306 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	din 1946-4:2018 positioning analysis tav system protected area surgical site infections Medicine R
spellingShingle	din 1946-4:2018 positioning analysis tav system protected area surgical site infections Medicine R Bulitta Clemens Schlautmann Burkhard Relevance and implications of positioning analysis for infection-preventive effectiveness of ventilation systems with low-turbulence dis-placement flow
description	Ventilation technology in German operating rooms is regulated by DIN 1946-4. Since the release of the latest version in 2018, a positioning analysis (worst-case scenario with the largest space requirement) for determining the required protected area in class 1a operating rooms is mandatory. The aim of this investigation was to use typical workflow scenarios to assess existing installations regarding the match of the required and the built size of the protected area. Positioning analyses were carried out together with the on-site staff for various clinical procedures in 2 hospitals to assess the built versus required protected areas. In all cases, the positioning analysis revealed that required protected areas need to be significantly larger than provided by the existing setup. The size of the protected area that is actually required can only be determined by individual positioning analysis. Most existing installations of low turbulence displacement flow systems (TAV) are likely to be too small. The larger protected areas actually require significantly larger rooms in order to maintain proper thermodynamics. Furthermore, significantly higher volumetric flow rates are required. Finally, the current mismatch between actual and necessary protected area would be a possible explanation for the controversial data situation regarding the infection preventive effects of TAV systems.
format	article
author	Bulitta Clemens Schlautmann Burkhard
author_facet	Bulitta Clemens Schlautmann Burkhard
author_sort	Bulitta Clemens
title	Relevance and implications of positioning analysis for infection-preventive effectiveness of ventilation systems with low-turbulence dis-placement flow
title_short	Relevance and implications of positioning analysis for infection-preventive effectiveness of ventilation systems with low-turbulence dis-placement flow
title_full	Relevance and implications of positioning analysis for infection-preventive effectiveness of ventilation systems with low-turbulence dis-placement flow
title_fullStr	Relevance and implications of positioning analysis for infection-preventive effectiveness of ventilation systems with low-turbulence dis-placement flow
title_full_unstemmed	Relevance and implications of positioning analysis for infection-preventive effectiveness of ventilation systems with low-turbulence dis-placement flow
title_sort	relevance and implications of positioning analysis for infection-preventive effectiveness of ventilation systems with low-turbulence dis-placement flow
publisher	De Gruyter
publishDate	2020
url	https://doaj.org/article/2008c20df660447b847a712d848debe5
work_keys_str_mv	AT bulittaclemens relevanceandimplicationsofpositioninganalysisforinfectionpreventiveeffectivenessofventilationsystemswithlowturbulencedisplacementflow AT schlautmannburkhard relevanceandimplicationsofpositioninganalysisforinfectionpreventiveeffectivenessofventilationsystemswithlowturbulencedisplacementflow
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Relevance and implications of positioning analysis for infection-preventive effectiveness of ventilation systems with low-turbulence dis-placement flow

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