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Hi Glenys and all,
(I declare my conflict of interest as a medical device disinfectant supplier), however, my point is NON COMMERCIAL IN NATURE.
Re the current Corona Virus situation: I have noticed something concerning during my interactions with Public Hospital Ophthalmic and Optometry/Orthoptic departments and Private Practices/Optometry sites- and that is overwhelming the use of Isopropyl Alcohol Wipes as a supposed “disinfectant” for Medical devices contacting the eye or secretions of the eye.
The concern is two fold and point 2 relates to Corona Virus.
1. Isopropyl Alcohol requires a wet contact time of 5 minutes to be Bactericidal, but the alcohol has a flash point/drying time of approx. 40 Seconds so the bactericidal effect not completed
2. Isopropyl Alcohol Wipes are NOT VIRUCIDAL, with any length of contact time.I have had many discussions with Hospitals regarding the selection of a disinfectant that is effective against ADENOVIRUS (as this is a leading cause of Kerato-Conjunctivitis) and as such requires a disinfectant that is at least Viricidal.
Now though, the reports and evidence are suggesting/confirming that Corona Virus is transmissible via the mucosa of the eye as well as via the secretions, just as SARS was identified as transmissible in this way during that outbreak event. The recommendations are for full PPE including Eye protection for carers in the outbreak zone. And whilst this is prudent for protection of healthcare workers, it does not address the reprocessing of the Ophthalmic Medical Devices which contact the eye during Ophthalmic/Orthoptic diagnostic and therapeutic procedures.
I believe this is currently an entirely overlooked pathway of Virus transmission, and it concerns me greatly that two peak organisations here in Australia- Optometry Australia and RANZCO (college of Ophthalmology) actively promote the use of Isopropyl Alcohol for disinfection, (and 5,000ppm of Sodium Hyper-Chlorite) in direct conflict with the requirements of ASNZ 4187.
Just by way of reminder, the requirement under the ASNZ 4187 (as a MINIMUM) is for HIGH LEVEL DISINFECTION of Medical Devices used in contact with broken skin and Mucosal surfaces.
The product selected MUST be: a TGA approved, INSTRUMENT GRADE, HIGH LEVEL DISINFECTANT (Class 2B)- not a listed or registered disinfectant, also known as an OTG (other therapeutic good)- products with this level of registration are ONLY approved for use as SURFACE disinfectants, not device disinfectants.
I am interested in the opinion of others on this forum as to 1. the risk and 2. the desire to close that GAP by insisting only High Leve, Instrument Grade disinfectants be used in this space (with the required appropriate tracking/auditing capability), as required by ASNZ 4187.
Yours Sincerely
Scott
Scott Pabst
National Sales Manager
Tristel Australia
T 1300 680 898 (inside Australia)
T +613 9583 6181 (outside Australia)
M 0435 843 950[cid:image001.jpg@01D5E038.708B5EB0]
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Tristel Pty Ltd.
40/328 Reserve Road | Cheltenham | VIC | Australia | 3192If you have received this message in error, please notify us and remove it from your email system.
Save a tree. Don’t print this email unless it’s really necessary.Dear All,
This publication (in press yesterday) notes the following in the summary:
* “The analysis of 22 studies reveals that human coronaviruses such as Severe Acute Respiratory Syndrome (SARS) coronavirus, Middle East Respiratory Syndrome (MERS) coronavirus or endemic human coronaviruses (HCoV) can persist on inanimate surfaces like metal, glass or plastic for up to 9 days, but can be efficiently inactivated by surface disinfection procedures with 62-71% ethanol, 0.5% hydrogen peroxide or 0.1% sodium hypochlorite within 1 minute”.
Kampf G, et al. Persistence of coronaviruses on inanimate surfaces and its inactivation with biocidal agents, Journal of Hospital Infection, https:// doi.org/10.1016/j.jhin.2020.01.022.
May be of interest/use.
Regards
Glenys
Glenys Harrington
Consultant
Infection Control Consultancy (ICC)
P.O. Box 6385
Melbourne
Australia, 3004
M: +61 404816434
E: infexion@ozemail.com.au
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The use of trade/product/commercial brand names through the list is discouraged by ACIPC. If you wish to discuss specific reference to products or services by brand or commercial names, please do this outside the list.
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