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Medical staff’s posture on airflow distribution and particle concentration in an operating room

During a surgical procedure, each of the medical staffs would have different postures. Supporting medical staff such as anaesthesiologist would stand in upright condition with straighten-forearm, while medical staff that is performing surgical procedures is in bent-forearm posture. The positioning o...

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Main Authors: Siaw, W. C., Musram Rakunman, M. R., Kamaruzaman, N., Tsuji, T., Abdul Manaf, N.
Format: Conference or Workshop Item
Language:English
Published: 2020
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/92060/1/NKamaruzaman2020_MetalRemovalfromIndustrialWastebyHydrochloricAcid.pdf
http://eprints.utm.my/id/eprint/92060/
http://dx.doi.org/10.1088/1757-899X/884/1/012103
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spelling my.utm.920602021-08-30T04:58:20Z http://eprints.utm.my/id/eprint/92060/ Medical staff’s posture on airflow distribution and particle concentration in an operating room Siaw, W. C. Musram Rakunman, M. R. Kamaruzaman, N. Tsuji, T. Abdul Manaf, N. TJ Mechanical engineering and machinery During a surgical procedure, each of the medical staffs would have different postures. Supporting medical staff such as anaesthesiologist would stand in upright condition with straighten-forearm, while medical staff that is performing surgical procedures is in bent-forearm posture. The positioning of forearm might interrupt the air supplies from the ceiling-mounted diffuser, that serves to remove the airborne particles from the surgical zone. Consequently, the movement of particles in the surgical zone is affected, and the tendency of particles to fall onto the patient's wound is increased. This situation could elevate the chances of a patient contracting surgical site infections and could increase the risk of death. The present study aims to examine the effects of medical staff's forearm posture on the number of particles falling onto the patient. A simplified computational fluid dynamics (CFD) model of the operating room was developed and validated based on the published data. An RNG k-ϵ turbulence model based on the Reynolds-Averaged Navier-Stokes (RANS) equations was used to simulate the airflow, while a discrete phase model was used to simulate the movement of the airborne particles. Results show that bent-forearm of medical staff obstructed the downward airflow to remove the particles released by the medical staff. Approximately 37 particles/m3 accumulated in the chest region of the medical staff. A high particle accumulation is also observed at the gap between the staff's legs due to the stagnant airflow. 2020 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/92060/1/NKamaruzaman2020_MetalRemovalfromIndustrialWastebyHydrochloricAcid.pdf Siaw, W. C. and Musram Rakunman, M. R. and Kamaruzaman, N. and Tsuji, T. and Abdul Manaf, N. (2020) Medical staff’s posture on airflow distribution and particle concentration in an operating room. In: 2019 Sustainable and Integrated Engineering International Conference, SIE 2019, 8 - 9 December 2019, Putrajaya, Malaysia. http://dx.doi.org/10.1088/1757-899X/884/1/012103
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Siaw, W. C.
Musram Rakunman, M. R.
Kamaruzaman, N.
Tsuji, T.
Abdul Manaf, N.
Medical staff’s posture on airflow distribution and particle concentration in an operating room
description During a surgical procedure, each of the medical staffs would have different postures. Supporting medical staff such as anaesthesiologist would stand in upright condition with straighten-forearm, while medical staff that is performing surgical procedures is in bent-forearm posture. The positioning of forearm might interrupt the air supplies from the ceiling-mounted diffuser, that serves to remove the airborne particles from the surgical zone. Consequently, the movement of particles in the surgical zone is affected, and the tendency of particles to fall onto the patient's wound is increased. This situation could elevate the chances of a patient contracting surgical site infections and could increase the risk of death. The present study aims to examine the effects of medical staff's forearm posture on the number of particles falling onto the patient. A simplified computational fluid dynamics (CFD) model of the operating room was developed and validated based on the published data. An RNG k-ϵ turbulence model based on the Reynolds-Averaged Navier-Stokes (RANS) equations was used to simulate the airflow, while a discrete phase model was used to simulate the movement of the airborne particles. Results show that bent-forearm of medical staff obstructed the downward airflow to remove the particles released by the medical staff. Approximately 37 particles/m3 accumulated in the chest region of the medical staff. A high particle accumulation is also observed at the gap between the staff's legs due to the stagnant airflow.
format Conference or Workshop Item
author Siaw, W. C.
Musram Rakunman, M. R.
Kamaruzaman, N.
Tsuji, T.
Abdul Manaf, N.
author_facet Siaw, W. C.
Musram Rakunman, M. R.
Kamaruzaman, N.
Tsuji, T.
Abdul Manaf, N.
author_sort Siaw, W. C.
title Medical staff’s posture on airflow distribution and particle concentration in an operating room
title_short Medical staff’s posture on airflow distribution and particle concentration in an operating room
title_full Medical staff’s posture on airflow distribution and particle concentration in an operating room
title_fullStr Medical staff’s posture on airflow distribution and particle concentration in an operating room
title_full_unstemmed Medical staff’s posture on airflow distribution and particle concentration in an operating room
title_sort medical staff’s posture on airflow distribution and particle concentration in an operating room
publishDate 2020
url http://eprints.utm.my/id/eprint/92060/1/NKamaruzaman2020_MetalRemovalfromIndustrialWastebyHydrochloricAcid.pdf
http://eprints.utm.my/id/eprint/92060/
http://dx.doi.org/10.1088/1757-899X/884/1/012103
_version_ 1709667378871140352
score 13.211869

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