I have updated the COVID-19 pages with self updating information on cases for Canada and worldwide.
Updated COVID-19 Information Page
Medical
Medical related news.
Emergency Ventilator Designed and Constructed by Hams Going to FDA
Radio amateurs have succeeded in providing a complete, working ventilator system to University of Florida researchers who are in the process of applying to the Food and Drug Administration for an Emergency Use Authorization (EUA). A successful submission would blaze the way for volunteers and manufacturers around the world to create low-cost, highly functional Intensive Care Unit (ICU) or anesthesia-care ventilators that offer many of the features of modern ventilators at a fraction of the typical cost. Dr. Gordon Gibby, KX4Z, who is associated with the project, said efforts to further improve the device are ongoing.
“We made a stunning improvement in accuracy of the system and measuring volumes last night at about 1 AM,” he told ARRL. “Accuracy of that particular alarm measurement went from about 300%, down to about 10%. The FDA submission is being readied, but we keep making engineering improvements.”
Gibby credited some of the primary volunteers. “Bob Benedict, KD8CGH, has provided incredible volunteer testing, now exceeding 1.6 million cycles on one crucial valve and 300,000 on another. Jack Purdum, W8TEE, is the main ‘code-cleaner’ for one of multiple teams building software, following the initial lead of Marcelo Varanda, VA3MVV. Ashhar Farhan, VU2ESE, not only created the ventilator controller schematic but the printed circuit board layout that will be part of an expected University of Florida submission.” Farhan was among the founding code writers of what we now know as Voice over Internet Protocol (VoIP).
Other hams worked on mechanical designs for flow measurements and retooled potential manufacturing capabilities otherwise used to produce transceivers. In another example of ham radio ingenuity, Marc Winzenried, WA9ZCO, modified a readily available lawn sprinkler to serve as a durable expiratory valve. This development enabled the ventilator to go more than 1 million breaths before significant valve issues developed, and the part can be replaced for less than $15.
The completed prototype in Florida was built using typical tools by a radio amateur, and assembled boards provided by LifeMech, a manufacturer working with the project. Farhan crafted an extendable menu structure for the Arduino Nano-based controller, and gas-flow measurements are made every few milliseconds by an I2C-based differential pressure transducer that can measure down to tiny PSI fractions, allowing the design to accurately track patient-induced variations in the volume of delivered gasses.
“Using Wenzenried’s expiratory valve, electronic on-off control at the rate of 30 Hz allows modulation of the valve to set the continuous airway pressure used to keep the patient’s lung alveoli open against virus-induced water-logging of the connective tissue,” Gibby explained. An improved software design allows faster monitoring that accurately measures patient breaths despite gas flow perturbations, with the only valve component showing wear after nearly a million cycles is the nitrile diaphragm.
“Perhaps the most surprising development was the addition of the ability to sense patient effort to take a breath and immediately switch to assisting the patient with that breath, known as ‘assist-control’ ventilation,” Gibby said. “This is expected to allow far lighter sedation of patients — potentially even no sedation — and allows patients’ crucial respiratory muscles to keep up their strength.” He said the current design goes far beyond the FDA’s guidance document for emergency ventilator development.
Radio amateurs delivered the operational control system, basic manufacturing instructions, software, and software explanation to the University of Florida on April 24.
Troops, vehicles to move through to CFB Borden for anti-coronavirus fight
The military is advising people in the Toronto area to expect a large number of its personnel and vehicles on the roads starting on Monday.
The Department of National Defence says members of the Joint Task Force Central will be heading from units across Ontario to Canadian Forces Base Borden.
The movement is part of the government’s fight against COVID-19.
Hundreds of Canadian Armed Forces members will be involved.
The department says the aim is to form a task force at Borden.
The troops will then be ready to respond to any requests from the government to help deal with COVID-19 or potential spring flooding.
Federal government launches dedicated COVID-19 resource app
The federal government has launched a dedicated COVID-19 app as a central resource for Canadians across the country for iPhone and Android.
The Government of Canada says the app provides Canadians with personalized, trusted, evidence-based information about the pandemic. It also includes the most up-to-date information, recommendations and resources.
If a person is concerned about their health, they can use the self-assessment tool that can help determine whether they may need further assessment or testing for COVID-19.
The homepage includes information about the importance of physical (social) distancing along with tips on how to properly wash your hands.
The app features information about the confirmed cases in Canada by province. At the time of writing, the app notes that 256,933 people have been tested in the country, and that there are 9,613 total cases and 109 deaths.
The stats tab in the app showcases several informative charts regarding the cumulative cases by date and new cases per day.
There is also a tab with updates that includes all of the press releases issued by the government about the latest news and measures being taken to curb the spread of the virus. The resource tab includes important information such as travel advisories, prevention methods and answers to common questions.
With the surge of misinformation on social media and other popular platforms, it’s a great step by the government to ensure that Canadians have access to credible and up-to-date information.
You can download the app from the iOS App Store or on Google Play.
Amateur Radio during the current Global Pandemic
The Covid-19 pandemic has been a part of our daily lives for several weeks now and will most likely continue to be for some time. The pandemic is of particular concern for Radio Amateurs because ours is a hobby that can be practised by people of all ages from elementary schoolchildren to senior citizens. In fact, it is frequently one of the activities that many take up as they near or begin retirement and finally have the time and resources available to participate. Consequently, we have a high proportion of seniors among our members and indeed some of the Amateur Radio clubs affiliated with RAC are senior citizen organizations.
Canadians are being directed to stay home in order to limit their contact with other people and to “flatten” or “plank” the coronavirus curve. As result, Amateur Radio club meetings and public events have been cancelled and clubs are investigating ways to keep in touch with their members – who are being encouraged to limit direct personal contacts through social/physical distancing and self-isolation – by using existing or new Amateur Radio nets (see below) and/or internet-based communication tools such as Zoom, GoToMeeting, WebEx and many others.
Isolation can have its own potential problems for people who live alone. Amateur Radio is all about communicating and we have the necessary hardware and expertise to enable individuals to stay in touch with their families, friends and colleagues.
The Canadian Red Cross has prepared a “Psychological First Aid Pocket Guide” (PDF file, 631 kB; also shown below) which “provides emotional and practical support to individuals, families and communities who are having difficulty coping. It is about establishing a connection with people in a compassionate non-judgmental manner to bring calm and comfort.”
The Amateur Radio Emergency Service (ARES) is assisting the effort at every level. Some regions have already activated their Emergency Operations Centres to help coordinate agencies working the frontline and because of the current state of emergency declared by provinces, territories and municipalities. This does not mean that Amateur Radio Emergency Services are active or will be activated for this event. We provide communications services to mitigate potential failures and currently, despite the reports of concerns, there have been no reported issues.
Amateur Radio nets regularly connect individuals on a scheduled basis, but perhaps they can play additional roles during these difficult times such as helping isolated seniors keep contact with one another and allowing their colleagues and club members to help out when needed. We do not have a complete list of all Amateur Radio nets in Canada but the links at the end of this Message will provide a good start.
The impact and duration of the unprecedented global pandemic we now face has yet to be determined and it is difficult to plan in an uncertain future. However, although the RAC Head Office in Ottawa has been closed indefinitely, the majority of activities and responsibilities of the RAC administration are now being performed remotely. In addition, the RAC Board and Executive and all RAC committees and volunteers continue to work on behalf of all RAC members and for Amateur Radio in Canada and internationally.
The Amateur Radio Service consists of a diverse population, both in age and abilities, and Amateurs and Amateur Radio organizations are adapting to the current crisis and using their skills and knowledge to help in any way they can. RAC is also rising to the challenge and is now looking at ways to do things differently and to take advantage of our technical skills and recent technological advances. For example, we are now in the final stages of organizing both a Basic and an Advanced online Amateur Radio course. More information about this new initiative will be posted on the RAC website in the coming days.
It is interesting that we are discussing this new need for Amateur Radio to provide assistance as we approach World Amateur Radio Day which is held every April 18. It was on that day in 1925 that the International Amateur Radio Union (IARU) was formed in Paris and Radio Amateurs worldwide now take to the airwaves each year in celebration.
Appropriately, the theme of World Amateur Radio Day is “Celebrating Amateur Radio’s contribution to Society” and Amateur Radio will play its part as the current global crisis unfolds. RAC is planning to celebrate World Amateur Radio Day this year on the air by inviting Amateurs in Canada and around the world to contact RAC official stations (VA2RAC, VA3RAC etc). The details are still being worked out and we will provide more information about this event in the near future.
Thank you for your continued support and understanding during this time of crisis. Please take care of yourself and your loved ones. Stay safe and, wherever possible, let us help one another during this extraordinary time.
Glenn MacDonell, VE3XRA
President, Radio Amateurs of Canada
Amateur Radio nets:
Amateur Radio nets:
Radio Amateurs of Canada:
The Battleford’s Amateur Radio Association:
http://ve5brc.amateur-radio.ca/net.htm
The North Okanagan Radio Amateur Club:
http://norac.bc.ca/index.php/nets
Canadian Red Cross Psychological First Aid Guide:
Coronavirus: GO Transit further reducing service temporarily after 90% ridership drop
As the province continues to respond to the coronavirus pandemic, GO Transit has announced a further reduction in service amid a major ridership drop.
Metrolinx spokesperson Anne Marie Aikins told Global News in a statement that with ridership being down by approximately 90 per cent compared to this time last year, adjustments will be made to train and bus services as of Wednesday.
Trains will continue to serve all train stations except for West Harbour GO station in Hamilton, which will periodically be served by Route 18 GO buses. Buses will continue to serve all routes. Some routes will see service every 60 to 90 minutes.
UP Express is unaffected by the temporary reductions. Trains will continue to operate every 30 minutes.
GO Transit also recently announced cash payments won’t be accepted on buses and at train station service counters. Cash will still be accepted at ticket vending machines. Riders were encouraged to top up their Presto fare cards.
As of Friday morning, the Ontario government said there were 3,255 cases of COVID-19 in the province. In total, 67 Ontario residents have died and 1,023 cases have been deemed resolved.
Military says no link between movement of armoured vehicles and COVID crisis
The Canadian Armed Forces is shooting down suggestions of a link between the movement of a large number of army trucks and armoured vehicles and the COVID-19 crisis, after video of the vehicles spurred questions about a potential military mobilization.
Video of the military vehicles being transported by rail circulated on social media over the weekend, sparking calls to the Department of National Defence over whether the Forces was mobilizing or otherwise preparing to respond to the COVID-19 pandemic.
But the Defence Department says the vehicles were returning from a training exercise that was to be held at Canadian Forces Base Wainwright in Alberta in May. Canadian Army commander Lt.-Gen. Wayne Eyre cancelled Exercise Maple Resolve last week due to COVID-19.
In response to the social media posts, the Quebec-based 2nd Canadian Division made its own video using the same footage superimposed with the words “No link with the coronavirus.” The message was repeated in French.
The spread of the videos and questions about a potential military mobilization nonetheless sparked concerns within the Defence Department, which has been on heightened alert for false information — deliberate and unintentional — given the current climate with COVID-19.
“The risks and impacts of misinformation during this critical period are real and need close and careful monitoring,” department spokesman Daniel Le Bouthillier said in a statement.
“While it is normal and expected that the public are, at this time, far more sensitive to the public environment, the viral propagation of inaccurate or decontextualized content could lead to confusion or impact efforts to flatten the curve.”
The Canadian military has curbed many of its activities in light of COVID-19. Training exercises and some operations have been suspended or cancelled to protect the force from the respiratory illness and ensure the military is ready to respond should it be called upon.
The frigate HMCS Fredericton has been ordered to cancel a number of port visits and ceremonies during its deployment with a NATO fleet in the Mediterranean Sea, while two other naval vessels are cutting short their drug-interdiction efforts and returning home from the Caribbean.
The military has stopped providing updates on the number of service members who have contracted COVID-19, suggesting the information could be used by adversaries.
Chief of the defence staff Gen. Jonathan Vance warned in a letter to military personnel last Friday that they needed to “face the reality that the three-week operational pause we are experiencing now may continue.”