Transcript NEW TECHNOLOGIES (UVC) - wahealthcaresafety.org

UVC LIGHT FOR SANITIZING
Jeff Dale
Harborview Medical Center
What we will learn
1.
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The evolution of UVC light
UVC in Healthcare
New technologies to be used with UVC light
a. ATP meter
b. Glow germ
UVC Light
Ultraviolet-denoting electromagnetic radiation of wavelength shorter than that of the violet end of the
spectrum, having wavelengths of 4-400 nanometers.
1.
Ultraviolet A-Ultraviolet Radiation with wavelengths between 320 and 400 nm.
2.
Ultraviolet B-Ultraviolet Radiation with wavelengths between 290 and 320 nm.
3.
Ultraviolet C-Ultraviolet Radiation with wavelengths between 200 and 290 nm.
UVC Light has been used to sanitize water for over 100 years, UV Light is found in sunlight and
emitted by electric arcs. A large fraction of UV, including all that reaches the surface of the Earth, is
classified as non-ionizing radiation.
The UV spectrum thus has many effects, both beneficial and damaging, to human health.
UVC in Healthcare
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Background
Multiple-drug-resistant organisms (MDROs) and Clostridium difficile (CD) are significant problems in health care. Evidence suggests that
these organisms are transmitted to patients by the contaminated environment.
Methods
This is a retrospective study of the implementation of ultraviolet environmental disinfection (UVD) following discharge cleaning of
contact precautions rooms and other high-risk areas at Westchester Medical Center, a 643-bed tertiary care academic medical center.
Incidence rates of hospital-acquired MDROs plus CD before and during the UVD use were evaluated using rate ratios and piecewise
regression.
Results
The average time per UVD was 51 minutes, and machines were in use 30% of available time. UVD was used 11,389 times; 3,833
(34%) of uses were for contact precautions discharges. UVD was completed for 76% of contact precautions discharges. There was a
significant 20% decrease in hospital-acquired MDRO plus CD rates during the 22-month UVD period compared with the 30-month preUVD period (2.14 cases/1,000 patient-days vs 2.67 cases per 1,000 patient-days, respectively; rate ratio, 0.80; 95% confidence
interval: 0.73-0.88, P < .001).
Conclusion
During the time period UVD was in use, there was a significant decrease in overall hospital-acquired MDRO plus CD in spite of missing
24% of opportunities to disinfect contact precautions rooms. This technology was feasible to use in our acute care setting and
appeared to have a beneficial effect.
NEW TECHNOLOGIES (ATP)
ATP METER- ATP stands for Adenosine Triphospate. This
meter provides instant information in a janitorial inspection
on how to clean the surface, which is done by measuring the
levels of contamination. This meter is easily affordable and
can be used in office buildings, schools, hospitals etc. The
more the reading indicated on the meter, the more
contaminated the surface is. The results shown by the meter is
accurate and can act as a tool to maintain a clean, hygenic
surface.
NEW TECHNOLOGIES (ATP)
NEW TECHNOLOGIES (UVC)
UVC LIGHT AS A
SANITIZER- For years UVC
light has been used to kill
bacteria in water and air, the
technology now is being used
bacteria on surfaces
This is the IRIS UVC machine.
NEW TECHNOLOGIES (UVC)
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This is the TRU-D
NEW TECHNOLOGIES
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Glo Germ™ is a product sold
both in liquid and powder
form that contains proven safe
ingredients formulated to be
the same size as bacteria,
basically 5 microns in size.
When used in either the
powder or liquid-based form,
with the use of an ultra-violet
light, it simulates the spread
of germs, teaching how
quickly and broadly germs
can be spread in a short
period of time
Conclusion
AS WE CONTINUE TO TRY AND COMBAT HAI’S
(HOSPITAL AQUIRED INFECTIONS), UVC AND ATP
TECHNOLOGIES ARE BEING USED IN THIS FIGHT.
THESE TECHNOLOGIES WILL NOT WORK IF YOU
DON’T HAVE A SOLID CLEANING PROGRAM.
Questions/Discussions
My name is Jeffery Dale, I can be
reached at 206-707-2451 or emailed at
[email protected]