Viruses are natural inhabitants of the environment, both in the community and in the hospital. The
majority of these organisms are not pathogens and may even have a beneficial role to play in human
body. The organisms in the natural environment may provide a reservoir like biomedical waste from
which they may be passed to other patients and cause infections. However, there are very many
reservoirs; the one from which infections arise is usually called the source. Identification of the correct
source and its treatment and disinfection/ sterilization is essential to arrest the spread from this
source. Spread from community-acquired infections to other patients in hospital can be via:
1. The respiratory tract as in tuberculosis and respiratory viruses;
2. Infected blood as with viral hepatitis and HIV;
3. Faeces with salmonella, shigella, vibrio;
5. Infected discharges such as pus.
4. The air or skin scales as with chicken pox, herpes, /
PROVISIONAL
The following specification describes the
invention
........... .,-... ·~·
1
COMP~"
The following specification particularly
describes the invention and the manner in
which is to be performed
4. DESCRIPTION (Description shall start from next stage)
Description
According to WHO guideline, the wide variety of opportunities for acquisition of hospital pathogens
requires general standards of hospital practice to protect all patients. At the same time, each risk group
or procedure may require specific measures related to removing special sources of infection.
The general procedures include items such as:
• Supply of adequately sterilized instruments and dressings;
• Operating theatre design, discipline and procedures;
• General application of aseptic techniques;
• Good environment cleaning, safe food, effective laundry procedures and waste disposal, and
Specific measures include items such as:
• Standardized procedures for intubation, catheterization, venous access and investigative
procedures and
• Pri-operative surgical chemoprophylaxis.
In the CDC Guideline for Environmental Control prepared updated February 15, 2017 as a guide to the
appropriate selection and use of disinfectants has undergone- In view of the potential for transmission
of viruses (e.g., herpes simplex virus [HSV], adenovirus 8, or HIV) by tonometer tips, CDC recommended
that the tonometer tips be wiped clean and disinfected for 5-10 minutes with either 3% hydrogen
peroxide, 5000 ppm chlorine, 70% ethyl alcohol, or 70% isopropyl alcohol. However, more recent data
suggest that 3% hydrogen peroxide and 70% isopropyl alcohol are not effective against adenovirus
capable of causing epidemic kerato conjunctivitis and similar viruses and should not be used for
disinfecting applanation tonometer's.
Microwave-mediated thermal disinfection/ sterilization of virus from contaminated solid/liquid
biomedical waste is an innovative and alternative approach for disinfection of biomedical waste. In
previous reported scientific studies, it was reported that the five-six-minute exposure of microwave was
sufficient to kill about Ninety-five per cent of the virus under experimental condition. Microwaving is a
prerequisite to achievingeffective disinfection/ sterilization. This is particularly relevant in the hospital
associated with blood, serum, soil, faeces and other organic materials. OptiMaser™ is an appropriate
technology for disinfecting body fluid spill, blood, serum, soil, faeces and other organic materials,
contaminated vials etc. purpose of this study was to evaluate the efficacy and efficiency of the optimise
against disinfection of viruses
Therefore a culture method and TCID-50 were used for assessment.
DESCRIPTION
The present invention is a Microwave based method for the disinfection/sterilization of virus. TherE: is
an urgent need to develop appropriate and alternative technology for virus sterilization and disinfection/
decontamination for the safer use and disposal. Microwave being green and low-cost technology
provides an efficient and quick solution. It has been shown in previous studies that Microwaves have
effective disinfection efficacy for viruses. The traditional methods for disinfection of viruses by high temp
incineration, radiation heating, chemical methods, superoxide's is a slow, inefficient and harmful for
environment and less economical methods. And microwave-based disinfection is efficient comparatively
others this technique based on dielectric heating. This generally results in the temperature of the vessel
2
bei.ng higher than that of the stuffings. In contrast, Microwave chemistry is based on the efficient heating
of materials by microwave dielectric heating effects.
Microwave dielectric heating depends on the ability of a specific material to absorb microwave energy
and convert it into heat. Since, Microwaves are electromagnetic waves that consist of an electric and
magnetic field component, substances such as water which possess a dipole moment to generate heat
when irradiated with microwaves. When exposed to microwave frequencies, the dipoles of the water
align with the applied electric field. As the field oscillates, the dipole field attempts to realign itself with
the alternating electric field and, in the process, energy is lost in the form of heat through molecular
friction and dielectric loss. Thus, microwave irradiation produces efficient internal heating (in core
volumetric heating) by direct coupling of microwave energy with the molecules within the microbes or
the medium harboring them. The present invention is designed to work in Microwave equipment with
water sprinkling mechanism. Therefore, Microwaves penetrates the viral cells uniformly and generate
heat directly in the inner core of the cells that will cause proper denaturation of its genetic material. The
present method of the invention uses a Microwave based disinfection device with water sprinkling
system and single/double magnetron (OptiMaser, 3kW, 30/60 lit) for disinfection/ sterilization.
Field of the invention
At the start of disinfection cycle, virus contaminated sample containing bags were sprinkled with water
and followed by exposure of 2.45 GHz Microwaves (loo·c, 6 min). The average time is taken for the virus
disinfection/sterilization cycle in OptiMaser™ (Microwave based disinfection device) was observed. This
exposure did not cause any physical changes in properties of sample containing tubes. And to solve the
second problem of virus disinfection there is a barrier is placed to moderate the Microwave exposure to
sample containing tube get deformed hard to collect the treated sample and protect the spilling of virus
could be prevented through this you will crosscheck the lot of waste was disinfected or not by culturing
technique. A disinfection efficacy of 10 log reduction was achieved for Viruses.
A patent search revealed that microwave-based disinfection/sterilization of virus containing biological
waste as mentioned in the present invention is not claimed elsewhere.
The databases searched were
-Google Patent Search
- IP Patent search
- USPTO
- Patentscope
Background of the Invention
OBJECTIVES OF INVENTION
• The first objective is to develop a method for microwave mediated disinfection of virus.
The second objective is to develop a microwave-based method for the sterilization of surgical
instruments which are contaminated by viruses items used in the Academic institutions, R&D
laboratories and hospitals .

CLAIMS (Not applicable for provisional specification. Claims should start with the preamble
- "1/We claim" on separate page)
What is claimed is:
1. A device for disinfecting of viruses and thereof., comprising:
a) Viruses in culture cryo-preservative tubes are fed into the Microwave bin lined with microwave
compatible plastic polybag.
b) As the first step of disinfection cycle water is sprinkled into the bin to moisten the virus culture
tube to increase the dielectric.
c) A 6 min exposure at 100°(, 15 min hold time is sufficient to neutralize the any type of Virus
through OptiMaser™.
2. A microwave-based method for sterilization of virus contaminants:
a) Viral contaminated waste and sample tubes could be fed into microwave compatible plastic
tubes with a tight lock.
b) Virus containing sample tubes could be arranged in the bin and exposed to microwaves in
standardized Virus disinfection cycle.