2024-03-29T13:30:14Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00015391
2023-11-16T05:48:09Z
499:508:509:1452
Sterilization of Operating Instruments by Formaldehyde Cabinet at Ambient Temperature
SUZUKI, ASAKATSU
NAMBA, YOSHIMICHI
open access
Sterilization of operating instruments
Formaldehyde cabinet
Bacterial spores
Formaldehyde cabinets at ambient temperature have been used to sterilize heat-sensitive operating instruments in our operating rooms. The instruments were placed in formaldehyde cabinets with a capacity of 0.4 m^3 either wrapped in linen cloth or not wrapped. To generate the formaldehyde gas, 240g of formaldehyde-adsorbed plaster was deposited in the bottom of the cabinet. The efficiency of the sterilizing process was periodically examined using the spores of B. subtilis and B. stearothermophilus. During the past four years and two months, a total of 224 tests were performed, and 58 tests (25.9%) showed positive bacterial growth. Of 63 tests performed in the year of 1978 and 1979, no positive bacterial growth was observed at the exposure time of over 97 hrs. However, in January of 1980, the exchange interval of formaldehyde-adsorbed plaster was shortened from 4 to 2 weeks; thereafter, among 161 tests no bacterial growth was observed at the exposure time of over 73 hrs.
Nagoya University School of Medicine
1982-11
eng
departmental bulletin paper
VoR
https://doi.org/10.18999/nagjms.45.1-2.55
http://hdl.handle.net/2237/17409
https://nagoya.repo.nii.ac.jp/records/15391
10.18999/nagjms.45.1-2.55
http://www.med.nagoya-u.ac.jp/medlib/nagoya_j_med_sci/4512/4512.html
2186-3326
0027-7622
Nagoya Journal of Medical Science
45
1-2
55
59
https://nagoya.repo.nii.ac.jp/record/15391/files/v45n12p55_59.pdf
application/pdf
335.9 kB
2018-02-20