Pitch

The problem your project solves

  • Lack of Ventilators in Hospitals

The solution you bring to the table (including technical details, architecture, tools used)

  • Fully working ventilator, proven in Demonstrator
  • Based on pneumatics (bellow pumps burst)
  • Integratable in a few hours, using available components
  • Control Engineering for patient triggered ventilation
  • Control over inspiratory Oxygen Level (FiO2)
  • Modular Concept, can be scaled up fast
  • Safety protocols for over pressure
  • Battery power for more the 3 hours
  • Possibly fast to certify, meets nearly all requirements of the UK Government

What you have done during the weekend

  • Developed the demonstrator & code further
  • Final testing
  • Analysis of the potential business case
  • Presenting our idea & Networking

The solution’s impact to the crisis

  • Saving people when no ventilators available (1 patient/maschine)
  • Nearly hospital ready ventilator
  • Relieves the medical system
  • Opportunity for countries without ventilators
  • Emergency application in regions with COVID mass outreaches

The necessities in order to continue the project

  • Clinical testing
  • Medical certification
  • Industrial production capacities

The value of your solution(s) after the crisis

  • Further advanced Concept can be used in hospitals and and for people that require ventilation at home
  • Current concept can be supplied to developing countries

The URL to the prototype [Github, Website,...]

The URL to the pitchvideo

Team Members:

  • Levente Türk: Pneumatic Design, Pneumatic Component Test, Final Integration Testing, Electronical Testing, Pneumatic Hardware Implementation,
  • Jan-Henrik Zünkler: Electrical Design, Control Engineering, Electrical Integration & Test, Pneumatic Design, Interface Design

Extended Team

  • David Kim: Medical Consultant

Detailed Information

Inspiration

In the current SARS-COVID-19 Pandemic, the massively increasing number of infected humans, together with the case of a limited number of mechanical ventilators can yield to a situation, where emergency patients can not get a ventilator treatment because of a lack of availability. Thus, the aim of this project is to assist the European medical institutions with the supply of limited goods by providing a simple and easy to integrate emergency ventilator setup, that is as close as possible to solutions currently in use, so that doctors can get familiar with the setup in due curse. Jan-Henrik Zünkler and Levente Türk first met in an internship semester at the European Astronaut Centre, and used the last weeks to develop a first demonstrator for this concept.

What it does

Based on Hospital Air supply (alternatively a compressor) and pneumatic valves, the system is capable of medical ventilation in different ventilation modes. Modes integrated are based on sensor readings and feature fully automated ventilation, Continuous mandatory ventilation (CMV) pressure and volume controlled, Intermitted mandatory ventilation (IMV) pressure and volume controlled, as well as Continuous Spontaneous Ventilation (CSV). The pneumatic valves are controlled by a microcontroller for redundancy reasons, that is itself communication with a computer that is providing the touch display for control. It is also possible to integrate a physical interface based on analog sliders and buttons. The Microcontroller is taking pressure and air flow measurements, and controls ventilation based on this measurements. The system is capable of ventilating a patient in emergency situations even without power and air supply for more then 3 hours. Different to common DIY Ventilator solutions that coming up currently, this concept does not utilize an ambubag, and uses pneumatic valves. Ambubags tend to burst and due to the pneumatic valves, the inspiratory oxygen level can be controlled.

How I built it

The brain of the EVEREST Ventilator is an ESP32 microcontroller, that is connected to pressure and flow sensors. For the pressure sensors, barometric sensors have been utilised, and thus of a lack of availability of standard pneumatic flow sensors, Mass Air Flow Sensors from a car have been advanced for the concept. Based on the sensor readings, the controller can control ventilation of a patient in automated, pressure controlled and volume controlled mode. For the control, a standard interface on a computer is implemented, and the interface is displayed on an integrated touch display. The pneumatic integration basically consists out of pressure reducers and two to three pneumatic valves. In the case of three valves, it is also possible to select a specific O2 concentration, and in the case of 2 valves, doctors can choose between 100% O2 and breathing air. Power supply was implemented with two batteries, so that uninterrupted ventilation was possible for more then 3 hours in a test run. Alarms are implemented on the micro controller based on sensor readings with audio feedback. Right now, the first implementation meets nearly all of the UK governmental specifications for rapidly developed ventilators. The system itself already completed a day long test-run successfully (see youtube).

Accomplishments that I'm proud of

Developing a fully working ventilator in 4 weeks.

What's next for EVEREST - Easy Ventilator for Emergency Situations

For better testing, a simulator shall be rented from the german red cross in due corse.
In later versions of the demonstrator, standard pneumatic parts / connectors shall be used, so that the setup can be integrated in a plug’n'play way. Pneumatic Design has to be revisited in order to optimise ventilation

Built With

  • ballons(lunghmodell)
  • c++
  • flowsensors
  • microcontrollers
  • pneumatic
  • pneumaticvalves
  • pressuresensors
  • raspberrypi
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