How UVC Robot disinfects Patient Room/ Operation theaters and any area that is suspected to be infected. Also used in the food industry and Environmental services.

1. Engr. Gohar Abbas

3. Healthcare Problems
• Healthcare Associated Issues (HAI) are among the
major complications of modern Medical Therapy. The
most important HAIs are those related to invasive
devices bloodstream Infection (CLABSI), catheter-
associated urinary tract
infection (CAUTI), Ventilator associated
pneumonia (VAP) as well as Surgical site
Infection (SSI). HAIs are associated with significant
mortality, morbidities and increasing healthcare cost.
• HAI's put hospital staff at risk and increase labor
expenses for paid sick time.

4. Common Infection
• Nosocomial infections, otherwise known as
hospital-acquired infections, are those
infections acquired in hospital or healthcare
service unit that first appear 48hrs or more
after hospital admission or within 30 days
after discharge following in patient care. They
are unrelated to the original illness that brings
patients to the hospital and neither present
nor incubating as at the time of admission.

6. Solution of HAI’s
• DISINFECTION- It is a process which
reduces the number of contaminating
microorganisms, particularly those liable to
cause infection, to a level which is deemed
no longer harmful to health.

7. CLASSIFICATION OF DISINFECTION
DISINFECTANT
PHYSICAL AGENT
HEAT
RADIATION
Chlorine SURFACE ACTIVE SUBSTANCES
CHEMICALAGENT
FILTERATION
Hydrogen
per oxide
ALCOHOL
Ozone

8. Problems
 The surgeons disinfection procedure- hand rubbing 3 min or hand scrubbing 5
min has to be repeated many times a day, with a number of negative side effects
 Disinfectants are generally toxic and may damage or irritate the skin.
Care must be taken to avoid contact with irritant or toxic concentration.
Disposable gloves should be worn when handling them.
Disinfectants must always be used at the correct concentration. Too little is
ineffective and too much may be irritant to skin.
 Disinfectants take time to act. The time for effective disinfection will vary
with the
 microbial load
 the nature of exposed
 presence of resistant bacteria or spores

9. Problems
 Disinfectants may not kill even susceptible
bacteria if
 ~ microbial load is large.
 ~ if there is excessive organic matter.
 ~ if whole surface area to be decontaminated is not
covered Certain disinfectants are easily inactivated by
 ~ change in pH
 ~ by the presence of soap or detergents
 ~ by the presence of cotton, cellulose and other
discard materials.

10. Fumigation Disinfection
 fumigation seal the room with adhesive tape round the
edges of door and windows to prevent leakage
 Only 34% of high-touch surfaces are
 terminally cleaned
 Majority of isolation rooms are
 still contaminated with dangerous
 pathogens after disinfection
 This is time taken as well

11. Ozone Disinfection
 Low dosages may not effectively inactivate some viruses
 It is a more complex technology requiring complicated
equipment
 Ozone is very reactive and corrosive
 It is not economical
 Ozone is extremely irritating and possibly toxic, so off-gases
 The cost of treatment can be relatively high, being both
 capital- and power-intensive.
 There is no measurable residual to indicate the efficacy

12. Hydrogen Per Oxide Disinfection
 Hydrogen peroxide is a powerful oxidizer. It reacts with a
variety of substances.
 For disinfection, high concentration is required.
Hydrogen peroxide slowly decomposes into water and oxygen.
 An elevation of temperature and the presence of pollutions
enhance this process.
 Smell is too much irritating
 Time Taken
 Hazardous for health

13. Properties of an ideal disinfectant or antiseptic
It should
 Not be corrosive
 Not be toxic and irritant
 Be safe, easy to use and cost effective
 Have long shelf life
 Have high penetrating power
 It Shouldn’t be Time taken (Time is Money)

14. Raise in Bar
UVC Disinfection Robot

15. What is UV Light
• UV is Electromagnetic Radiations with
a Wavelength from 100 nm to 400 nm, shorter
than that of Visible light but longer than X-
Rays.

16. Sections of UV Light
• UVA: Ultraviolet bandwidths in the 320-400
nanometer range.
• UVB: Ultraviolet bandwidths in the 280-320
nanometer range.
• UVC: Ultraviolet bandwidths in the 200 – 280
nanometer range.
• High degree of germicidal effectiveness in
inactivating bacteria, viruses, and fungi.
• Generated by the sun but completely absorbed by
the ozone layer and the atmosphere.

17. How does UVC Disinfect
Ultraviolet germicidal irradiation is a
disinfection method that uses short-wavelength
ultraviolet light to kill or inactivate
microorganisms by destroying nucleic acids and
disrupting their DNA, leaving them unable to
perform vital cellular functions.

20. Time Required for Disinfection

22. SKYTRON UVC Robot
Differentiating Features
 Shorter treatment times
 Higher room throughput
 Reduces turn-over time
 More effective disinfections
 Higher pathogen kill rate
 Lead to greater reduction of HAI’s
 Whole-room disinfections
 Include shadowed surfaces
 Disinfect surfaces in distant proximity
 Single-cycle treatments
 Improve workflow
 No repositioning of unit