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DIY Ventilator using Arduino with Blood Oxygen Sensing For Covid Pandemic
DIY Ventilator using Arduino with Blood Oxygen Sensing For Covid Pandemic

Human lungs use the reverse pressure generated by contraction motion of the diaphragm to suck in air for breathing. A contradictory motion is used by a ventilator to inflate the lungs by pumping type motion.
A ventilator mechanism must be able to deliver in the range of 10 – 30 breaths per minute, with the ability to adjust rising increments in sets of 2. Along with this the ventilator must have the ability to adjust the air volume pushed into lungs in each breath. The last but now the least is the setting to adjust the time duration for inhalation to exhalation ratio.
Apart from this the ventilator must be able to monitor the patients blood oxygen level and exhaled lung pressure to avoid over/under air pressure simultaneously.
The ventilator we here design and develop using arduino encompasses all these requirements to develop a reliable yet affordable DIY ventilator to help in times of pandemic.
We here use a silicon ventilator bag coupled driven by DC motors with 2 side push mechanism to push the ventilator bag. We use toggle switch for switching and a variable pot to adjust the breath length and the BPM value for the patient.
Our system makes use of blood oxygen sensor along with sensitive pressure sensor to monitor the necessary vitals of the patient and display on a mini screen. Also an emergency buzzer alert is fitted in the system to sound an alert as soon as any anomaly is detected.
The entire system is driven by arduino controller to achieve desired results and to assist patients in COVID pandemic and other emergency situations.

  • Components
  • Atmega Controller
  • Blood Oxygen Sensor
  • Pressure Sensor
  • Servo Motor
  • Breather Mask
  • Valves & Joints
  • Air Breather Bag
  • Push Rods
  • Connector Rods
  • Gear Mechanism
  • Plastic Enclosure
  • LCD Display IC
  • Vtg Regulator IC
  • Resistors
  • Capacitors
  • Transistors
  • Cables and Connectors
  • Diodes
  • PCB and Breadboards
  • LED
  • Transformer/Adapter
  • Push Buttons
  • Buzzer
  • IC
  • IC Sockets

block diagram

diy arduino ventilator covid
diy bag valve mask ventilator covid
 
Human lungs utilize the opposite pressure produced by the compression movement of the stomach to suck in air for relaxing. An incongruous movement is utilized by a ventilator to swell the lungs by siphoning type movement. A ventilator component should have the option to convey inside the scope of 10 30 breaths each moment, with the adaptability to manage rising augmentations in sets of two. along with this, the ventilator should have the ability to manage the air volume drove into the lungs with every breath. Last however presently least is that the setting to control the time length for inward breath to exhalation proportion. Aside from this the ventilator should have the option to screen the patient's blood oxygen level and breathed out lung strain to keep away from over/under gas tension at the same time. The ventilator we here plan and foster utilizing Arduino envelops of these prerequisites to create a solid yet reasonable DIY ventilator to aid seasons of pandemic. We here utilize a silicon ventilator pack coupled driven by DC engines with 2 side push system to push the ventilator sack. We utilize an electric switch for exchanging and a variable pot to direct the breath length and thusly the BPM an incentive for the patient.
 
Our framework utilizes a blood oxygen sensor along with a delicate tension sensor to watch the compulsory vitals of the patient and show them on a little screen. Likewise, a crisis ringer alert is fitted inside the framework to sound a ready when an abnormality is identified. The whole framework is driven by an Arduino regulator to acknowledge wanted results and to help patients inside the COVID pandemic and other crisis circumstances. In the midst of the world emergency brought about by the Covid pandemic, medical clinics and medical services offices are revealing deficiencies of significant gear. As creators, it's our obligation to battle the deficiency by building improvised open-source substitute gadgets. Our nation likely could be in an extremely lockdown yet our creativity is not! One significant gadget that request has inclined up is ventilators for patients who need help with their breathing thanks to the respiratory impacts of COVID19. Fundamentally, a ventilator could be a machine that gives breathable air into and out of the lungs, to convey breaths to a truly incapable patient to inhale, or breathing deficiently. A DIY ventilator probably won't be proficient as that of a clinical grade ventilator yet it can go about as a fair substitute on the off chance that it's command over the ensuing key boundaries.  
 
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