Call
+918447748545

Published on: Apr 05, 2020
3 minute read
By: Dr Rajan Choudhary

Ventilators, When Breathing Is Not Enough For Covid-19 Patients!

Ventilators. A device few had heard of before the pandemic.

This life saving machine is desperately sought after by hospitals around the world. COVID patients with the most severe symptoms require ventilator support to survive and recover. But what is this machine? And what does it actually do?

THE BASICS

Breathing is a simple task, one that we do not think about. When we breathe our chest expands, and air is pulled into our lungs. Here oxygen is exchanged into the blood and transported by the pumping heart throughout the body. In our cells the oxygen is used to release energy from our food, and drive every process and reaction that keeps us alive and functioning.

COVID-19 is a respiratory disease caused by the coronavirus. Its symptoms include a dry cough, fever, feeling tired and more. In most patients the disease is mild. However some suffer from severe disease, causing havoc in their lungs. It can cause viral pneumonia in both of the patients lungs, which reduces the amount of lung able to bring in oxygen to the lung. The patient’s respiratory rate increases, as they struggle to draw in oxygen.

If a person is struggling to breathe on room air doctors can provide them extra oxygen. This is given through a mask they wear on their face. Normal air only has 21% oxygen, but in hospitals it is possible to give air that is 100% oxygen. This means more oxygen reaches the blood, and the patient has to put in less effort to breathe to get the same amount of oxygen to their cells.

In severe cases it can cause widespread inflammation in the lungs, causing fluid to build up and making breathing harder and more laborious. The patient can become tired having to breathe quicker and harder, and this is when doctors look to intensive care specialists and ventilator support.

VENTILATION

If a person is unable to breathe for themselves, it is possible to do this manually or mechanically. Specialists can insert a tube into the mouth of an unconscious patient that enters their windpipe. A bag pump can be attached to this, which a doctor can squeeze to push air into the patient’s lungs. But a person cannot continuously squeeze this bag to keep ventilating someone, as this is time consuming and tiring.

Ventilators are composed of a compressible reservoir or turbine that can push air into the patients lungs. Unlike regular pumps that continuously push air or water, ventilators have to mimic how we breathe. We inspire air in, then expire air out. Ventilators achieve this by pushing in air for a few seconds, inflating the lungs, then releasing the pressure. The natural elasticity of the patients ribs and lungs squeezes the excess air out, mimicking exhalation.

Modern ventilators are very smart, and have many configurable settings. They can be set to deliver defined quantities of air, change the rate of breathing and other advanced settings.

Hospitals regularly use ventilators for patients who are struggling to breathe, patients who are in a coma and have lost the ability to breathe, and also for anaesthetised patients in operating theatres. During the pandemic hospitals are cancelling unnecessary or non-emergency operations, redistributing these ventilators to be used for COVID patients instead.

MAKE MORE VENTS

It is estimated that up to 30% of patients that are admitted to hospital require ventilators. Most hospitals across the world do not have enough ventilators because they have never needed to ventilate so many patients. Governments have recruited the help of manufacturing companies to ramp up production of ventilators. In the UK F1 teams, military aircraft constructors and hoover manufacturers have all taken up the challenge and repurposed their factories.

There have also been innovations to create new ventilator designs that are cheap and easy to produce. This often involves off-the-shelf equipment that is already present in hospitals, and 3D printed parts. Such machines often do not require electricity or circuit board electronics, and can even be powered by the high pressure oxygen flowing from gas canisters or hospital walls.

- University College Dublin: https://techcrunch.com/2020/03/19/open-source-project-spins-up-3d-printed-ventilator-validation-prototype-in-just-one-week/ ventilator prototype

- University of Oxford: http://www.ox.ac.uk/news/2020-03-31-ventilator-project-oxvent-gets-green-light-uk-government-proceed-next-stage-testing Ventilator project

NEVER A SIMPLE SOLUTION

But as always its not always this simple. Ventilators are complex machines requiring specialist training to function and maintain, as ventilation and respiratory physiology is quite complicated. Ventilators will be of limited use if hospitals do not have enough staff trained to use them safely.

Ventilators are not without risk either. Because they push air into the lung, continuous use, excessive pressures and improper use can cause some damage to the delicate anatomy inside the lung, causing problems in itself. The plastic tube can also be a source of infection. Some hospitals that have had a sharp increase in ventilated patients have encountered problems supplying all their patients with pressurised oxygen. The patient load is overwhelming their infrastructure.

Unfortunately like most things in medicine, ventilators are not a magic cure. Due to the shortage of ventilators not everyone who needs one is able to get it. Most patients who end up needing ventilation are severely ill. The longer a person is on a ventilator the less likely they are to survive. This means that current mortality is rather high.

As more ventilators become available this treatment may become available to those with less severe symptoms, who are more likely to survive especially with this extra help. It is difficult to make these predictions because so many different variables can have an effect. For now we will have to wait and see.

WHAT DOES IT MEAN FOR ME?

The best way to help in these situations is by not catching the virus. This is especially true for those who are elderly, have diabetes, cardiovascular issues or lung diseases. These high-risk patients are more likely to have more serious symptoms, requiring hospitalization. This is why so many countries have enforced lockdown measures. The fewer that are infected, the fewer that need ventilation.

If you do need to leave the house, always follow the following procedures:

- Wash your hands regularly for 20 seconds with soap or alcohol

- Wear a mask outside: This is now official WHO policy

- If you need to cough or sneeze do so into your arm or a tissue

- Only leave the house for essential activities, shopping or to visit the doctor.

Dr Rajan Choudhary, Chief Product Officer & President, Second Medic UK

www.secondmedic.com

Read Blog

Virtual Clinic India: How SecondMedic Is Transforming Digital Healthcare

Healthcare in India is undergoing a significant transformation as digital platforms reshape how people access medical care. Virtual clinics have emerged as a powerful solution, offering patients immediate access to doctors, diagnostics, prescriptions, and continuous monitoring—without the need for physical hospital visits. This model has become increasingly important in a country where population density, geographical barriers, and long wait times often make healthcare inaccessible or inconvenient.

A virtual clinic uses telemedicine, digital records, online diagnostics, AI tools, and remote monitoring to offer a full healthcare experience through smartphones or computers. SecondMedic is among the leaders in this space, providing a robust virtual clinic ecosystem designed to support preventive health, chronic disease management, and immediate care for everyday medical needs.

The Role of Virtual Clinics in India’s Healthcare Evolution

India faces significant challenges including uneven specialist distribution, crowded hospitals, and rising lifestyle diseases. Virtual clinics bridge these gaps by making healthcare more accessible, affordable, and continuous. They enable patients from metropolitan areas, rural communities, and even remote regions to receive quality care without leaving home.

Key drivers behind virtual clinic growth include:

Growing smartphone and internet penetration
Increased comfort with digital health platforms
The need for safe and convenient care
Rising chronic illnesses requiring ongoing monitoring
Awareness of preventive healthcare

As a result, virtual clinics are becoming the first point of contact for many health concerns.

How Virtual Clinics Deliver Complete Healthcare

Virtual clinics are more than video consultations. They integrate multiple components of healthcare into a unified digital experience. SecondMedic’s virtual clinic model ensures continuity of care by bringing together doctors, diagnostics, monitoring tools, pharmacy support, and digital health records.

Core pillars of virtual clinic care include:

Instant doctor access
Seamless diagnostic testing
AI-based symptom evaluation
E-prescriptions
Medication delivery
Chronic disease monitoring
Preventive health programs

This creates an end-to-end flow that mirrors the experience of visiting a physical clinic, but with added convenience and personalization.

Online Consultations: Immediate Access to Specialists

One of the strongest features of a virtual clinic is the ability to consult qualified doctors quickly. Instead of waiting days for appointments or traveling long distances, patients can connect with specialists through secure video calls or chat.

Virtual consultations are especially useful for:

Common illnesses
Follow-up appointments
Second opinions
Chronic condition management
Mental health support
Elderly care
Pediatric queries

SecondMedic ensures that all consultations are supported by electronic health records, making the experience seamless and informed.

Digital Diagnostics and At-Home Lab Testing

Diagnostics are a core component of healthcare, and virtual clinics have made them significantly more accessible. Users can book lab tests online and have samples collected from their home. Results are delivered digitally, enabling faster diagnosis and treatment.

Advantages of digital diagnostics include:

No travel or waiting lines
Fast report turnaround
Integration with doctor consultations
Easy follow-up and comparisons over time
Better compliance for chronic disease tracking

SecondMedic partners with certified diagnostic labs to ensure high-quality test processing and accurate digital reporting.

Remote Monitoring and Chronic Disease Care

Chronic diseases such as diabetes, hypertension, heart illness, and thyroid disorders require ongoing monitoring. Virtual clinics use connected devices and AI-driven alerts to help patients stay on track with their health goals.

Common remote monitoring tools include:

Glucometers
Blood pressure monitors
Heart-rate trackers
Pulse oximeters
Weight and BMI tools
Sleep monitors
Wearable sensors

SecondMedic uses advanced analytics to detect risk patterns early, send reminders, and support long-term condition management.

E-Prescriptions and Digital Pharmacy Support

Virtual clinics simplify the process of receiving medical prescriptions and ordering medicines. E-prescriptions are accurate, tamper-proof, and instantly shareable with online pharmacies.

Digital pharmacy support helps with:

Medication delivery
Monthly chronic care refills
Transparent drug information
Avoiding prescription errors
Improving medication adherence

SecondMedic integrates e-prescriptions directly with its pharmacy partners, making the treatment process seamless.

Preventive Healthcare Through Virtual Clinics

Preventive care is becoming a priority for many Indians due to rising lifestyle diseases and increasing awareness of early screening. Virtual clinics support this need through personalized health plans designed using AI assessments, digital screenings, and doctor insights.

Preventive healthcare offerings include:

Annual full-body checkups
Lifestyle assessments
Diet and fitness plans
Stress and sleep guidance
Vaccination reminders
Long-term wellness tracking

SecondMedic’s preventive programs are designed to detect risks early and help users adopt healthier habits.

How Virtual Clinics Improve Healthcare Accessibility in India

Virtual clinics remove geographical barriers by bringing medical care to people who otherwise face difficulty accessing doctors. This includes:

Rural regions with limited healthcare facilities
Urban areas with long hospital wait times
Elderly individuals who cannot travel easily
Busy professionals needing flexible care
Patients seeking discretion for sensitive concerns

With increased digital literacy and affordable smartphones, virtual clinics are becoming accessible to a wide demographic.

The Future of Virtual Clinics in India

The future of virtual clinics is strong, supported by national initiatives like the Ayushman Bharat Digital Mission (ABDM), which encourages digital health adoption. AI-driven diagnostics, intelligent triaging, predictive health tools, and integrated hospital systems will further strengthen the virtual care model.

Upcoming trends include:

AI chat-based symptom evaluation
Virtual reality rehabilitation sessions
Smart device-linked monitoring
AI-based early disease detection
Comprehensive preventive health ecosystems
Hybrid care combining virtual and in-clinic visits

SecondMedic is actively developing next-generation virtual clinic technologies to make healthcare more proactive and patient-centered.

Conclusion

Virtual clinics are revolutionizing healthcare delivery in India by offering convenient, reliable, and digitally connected care. They bring together consultations, diagnostics, monitoring, and preventive health in one platform, reducing barriers and enabling patients to receive high-quality medical support anytime, anywhere. SecondMedic leads this transformation with a comprehensive virtual clinic model designed to support long-term health and wellbeing.

To access virtual consultations, digital diagnostics, and remote care services, visit www.secondmedic.com

References

NITI Aayog - Telemedicine and Digital Health Report 2024
Statista - Telehealth Usage India 2025
WHO - Digital Health Standards
IMARC - India Telemedicine Market Forecast
ABDM - Ayushman Bharat Digital Health Guidelines

Request A Callback

+91

By using this website/app, I confirm that I am at least 18 years old and consent to the processing of my personal data in accordance with the Terms of Service, Privacy Policy, and Declaration.