ASDevices makes a partnership with eTrace Medical 

Our response to COVID-19

 

 

A PATHOGEN NEUTRALISATION TECHNOLOGY FOR WEARABLE BREATHING AND STATIONARY DEVICES AGAINST COVID-19 & OTHER PATHOGENS

 


eTrace Medical Presentation  Wearable device brochure    Wearable and Stationary technology brochure   

 

COVID-19—PROVIDING A SAFE ENVIRONMENT FOR OUR HEALTHCARE WORKERS WITH A PORTABLE PATHOGEN NEUTRALISER

Due to the current COVID-19 pandemic , there is an urgent need for safety equipment to protect our healthcare workers and prevent propagation of the virus. Currently,  the standard prevention  tool is the N95 disposable mask. Not only is there a global shortage of these masks, but they also have their shortcomings.

A pathogen killer, not a pathogen trap like a N95 mask

  • Filter both inhaled and exhaled air*
  • Inhaled air pathogens neutralisation using Thermal reactor and bacteria trap*
  • Exhaled air pathogens neutralisation using Embedded DBD Plasma and UV sterilisation*

No waste—Reusable and washable mask

Ergonomic

  • No facial skin irritation as less force is required to seal the mask due to positive air  pressure supply.

Easy to breath, don't waste energy breathing through an obstructed dirty mask

  • Positive air pressure supply from blower continuously provides air flow, even after hours of use.

Compatible with many types of mask

  • Half-face and Full-face different mask compatible
  • Positive air pressure supply eliminates the risk of contamination from ambient air ingress into the mask. 
  • Optional microphone and speaker for communication

 * patent pending   ** patent pending

 

 

 A PATHOGEN NEUTRALISATION TECHNOLOGYpatent pending

Our technology is not a trapping system like N95 masks. It has been designed to neutralise pathogens, kill them. An inactive pathogen is armless, a trapped one is still dangerous. Pathogens in inhaled air are neutralised using our low power thermal reactor*. Most bacteria and viruses that are pathogenic to humans can be killed by heating them to 74 ˚C (165ºF) or higher. In the case of our technology, a volume of air is instantaneously heated to 400 ˚C to kill the pathogens. This step is followed by a bacteria filter before being provided to the user for safe breathing. Pathogens in exhaled air are neutralised using a Plasma DBD (Dielectric Barrier Discharge) zone. The DBD is known to kill pathogens. This reactor uses a unique licensed technology developed by ASDevices. Inside this plasma reactor, the following processes occur which neutralise the pathogens: i. Ozone is generated from air oxygen, ii. OH hydroxy ions are generated from moisture in air, iii. various UV rays having higher energy levels are generated, iv. high velocity electrons bombardment occurs and finally heavy ion collision in combination with a very high-intensity electric field that deforms organic molecules.

Additionally, a secondary emission by the live copper electrodes exposed to the flowing air inside the reactor results in an increase in the electron population. All those processes inside the plasma have been documented in the literature to neutralise pathogens.

 

 

SUPER HEATING—Contaminated droplet vaporisation *

Contamination from pathogens like Covid-19 occurs very often through droplets that are expelled during a cough or sneeze. The pathogen particulates are trapped inside the droplets which makes it more difficult to neutralise them. Our technology overcomes this problem using a superheating process inside the thermal reactor. This superheating process vaporises droplets and consequently free pathogens, making them easier to neutralise.

 

Pathogen neutralisation by increasing pathogen residence time in reactors*

The problem with most neutralisation or sterilisation technology is that pathogens are not instantaneously neutralised. It may require a few milliseconds to a few seconds. Our technology addresses this problem by slowing down the pathogens velocity in the air which increases the residence time inside the reactor. The pathogens are trapped inside a layer of porous material which has been engineered to trap most pathogens inside the structure. As such, they are efficiently neutralised. This principle is demonstrated in the figure below inside the thermal reactor. The same principle is also used in the DBD for exhaled air sterilisation.

 

 

Ambient air contaminaiton impossible, no need for a mask with a perfect fit

The purified air in the mask is provided with a pressure that is slightly above ambient pressure. This eliminate the risk of ambient air contamination and makes it esier to breath, even after hours of use.

 

 

 

A Wearable compact design (patent pending)

 

 

 

 

 

 

Stationary version technology principle - A four step fail safe sterilisation processpatent pending

Our stationary version technology relies on four independent steps to kill the pathogens contained in ambient air: thermal, UV, Plasma and Ozone. The combination of all these steps is what makes this technology so effective at destroying all pathogens and therefore very safe and robust, which is important when healthcare workers are working with infected and contagious patients.

Not a pathogen trap, but a pathogen killer

Pathogen free air using DBD Reactor*

Fail-safe process optimised high flow

  • Thermal, UV, DBD and O3 pathogen neutraliser
  • Pathogen outlet filte

Easy maintenance

Embedded alarm monitoring

Various size available

Multi-point delivery system

  • Provide purified air to multiple masks
  • Provide purified air to multiple workers
  • Provide purified air to multiple patients
  • Provide purified air to an existing air delivery system
  • Provide purified air to a mechanical respirator

Cylinder fill-in station

 * patent pending   ** patent pending

 

 

Stationary version technology principle - A four step fail safe sterilisation processpatent pending

Our technology relies on four independent steps to kill the pathogens contained in ambient air: thermal, UV, Plasma and Ozone. The combination of all these steps is what makes this technology so effective at destroying all pathogens and therefore very safe and robust, which is important when healthcare workers are working with infected and contagious patients.

 

 

Technology neutralisation principles

Thermal destruction

The first step consists of a thermal reactor. Most bacteria and viruses that are pathogenic to humans can be killed within minutes by heating them to 74 ˚C (165ºF) or higher . In the case of our technology, a volume of air is instantaneously heated to a temperature of between 250 ˚C and 350 ˚C to neutralise pathogens.

 

UV sterilisation

The second step involves UV light. It is well known that UV light kills pathogens [ref]. This step is relatively simple. It involves flowing the outlet of the thermal zone step into a cell, a stainless-steel tube for example, which contains the UV light. As the gas circulates through this chamber, the UV light neutralises pathogens.

 

 

Plasma DBD sterilisation

The third step is the most aggressive one. It involves the use of a Plasma DBD (Dielectric Barrier Discharge) zone. DBD is known to kill pathogens. This reactor uses a unique licensed technology developed by ASDevices. Inside this plasma reactor: i. Ozone is generated from air oxygen, ii. OH hydroxy ions are generated, iii. various UV rays having higher energy levels are generated, i.e. shorter wavelengths than the previous UV stage, high velocity electrons bombardment, heavy ion collision, a very high-intensity electric field that deforms organic molecules and can even break them, depending on the intensity of the field. An AC signal is used to create an oscillating collisional process.

Additionally, a secondary emission by the live copper electrodes exposed to the flowing air inside the reactor results in an increase in the electron population.

 

 

 

Ozone destruction

The DBD step is part of the final step whereby an air DBD generates ozone (O3). Ozone gas has been proven to kill the SARS coronavirus and since the structure of the new 2019-nCoV coronavirus is almost identical to that of the SARS coronavirus, ozone will have the same effect. In our technology, the O3 generated by the DBD is accumulated into the buffer tank. The buffer tank is the reservoir that is used after the final purification stage to accumulate the purified air at an elevated pressure. The accumulated ozone in that reservoir reacts with pathogens and neutralises them. This final step is used to make sure all pathogens are killed.

Exhaled Breath Sterilisation

Healthcare workers can also be a source of contamination. Standard N95 masks do not filter exhaled air. Our technology addresses this problem by filtering the exhaust air using a second plasma reactor. The principle is the same as the first plasma reactor. However, in this case, the reaction is done at ambient pressure.

The purification system also integrates multiple miniature check valves. This is another key point of this design as it prevents air from flowing back into the device.

 

 

Expertise through partnership

eTrace Medical Plasma DBD sterilisation is powered by ASDevices unique patented stabilised plasma discharge. The beam behind ASDevices has over 30 years in the design of low power plasma. There skills to related to plasma physics and design have made them renown experts around the world. There ultra stable plasma technology has been used by many global companies, especially for gas analysis. The plasma developed by the team since the early 90s are used by semiconductor manufacturer to monitor ultra low level of contaminants. They are also used to measure containment in air and more recently, VOCs in exhaled breath for cancer screening.

 

Internet Of Thing - Designed with connectivity

In order to improve safety and support Internet Of Thing, the device offers many advanced features that can be accesses from the cloud.

  • Preventive maintenance: Access device use and status to plan preventive maintenance
  • Access various parameters such a battery life and other parameters
  • Know which of your healthcare worker is currently active

INTELLECTUAL PROPERTIES

  • DEVICES FOR TREATING AIR FOR INHALATION AND EXHALATION, GAMACHE, Yves and LAMONTAGNE, Andre.
  • WEARABLE DEVICES FOR TREATING AIR FOR INHALATION AND EXHALATION, GAMACHE, Yves and LAMONTAGNE, Andre.
  • ANALYTICAL METHOD FOR THE MEASUREMENT OF VOC IN EXHALED BREATH, GAMACHE, Yves and LAMONTAGNE, Andre.