Evaluation of infection-control effectiveness through use of an infection-control bed

Keitaro Arai, Masayuki Ogata, Mai Fujiwara, Hitomi Tsutsumi, Shoichi Morimoto, Shin Ichi Tanabe, Satoshi Hori, Takao Ariga

Research output: Contribution to conferencePaper

Abstract

We propose an infection-control bed as an infection-control technique using a push-pull local ventilation system and evaluated this bed in this study. The effectiveness in reducing the risk of airborne infection was evaluated using a cough-simulation machine. The machine releases carbon dioxide (CO2) as a tracer gas. The simulated cough was set up to be released in two directions. The directions were assumed such that they typically pose an infection risk to the doctor. In addition, the diffusion-prevention effect in the hospital room was also studied. When the cough was released directly above the bed, the amount of CO2 gas sampled at the measurement points above the patient decreased. The concentration at the most effective measurement point was 91.1 % lower as compared to that in the control case. When the cough was released directly in the doctor's direction, the concentration at the doctor's respiratory area was 56.7 % lower as compared to that in the control case.

Original languageEnglish
Pages1-8
Number of pages8
Publication statusPublished - 2014 Jan 1
Event13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014 - Hong Kong, Hong Kong
Duration: 2014 Jul 72014 Jul 12

Conference

Conference13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014
CountryHong Kong
CityHong Kong
Period14/7/714/7/12

Keywords

  • Cough simulation machine
  • Hospital
  • Infection risk
  • Infection-control bed
  • Push-pull local ventilation

ASJC Scopus subject areas

  • Pollution
  • Building and Construction
  • Health, Toxicology and Mutagenesis
  • Computer Science Applications

Fingerprint Dive into the research topics of 'Evaluation of infection-control effectiveness through use of an infection-control bed'. Together they form a unique fingerprint.

  • Cite this

    Arai, K., Ogata, M., Fujiwara, M., Tsutsumi, H., Morimoto, S., Tanabe, S. I., Hori, S., & Ariga, T. (2014). Evaluation of infection-control effectiveness through use of an infection-control bed. 1-8. Paper presented at 13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014, Hong Kong, Hong Kong.