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5 changes: 5 additions & 0 deletions DISCLAIMER.md
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## Disclaimer

Currently LibreRespire ventilator is at experimental stage and not been validated and approved for human or animal use clinically.

THE VENTILATOR INFORMATION IS PROVIDED “AS-IS, WHERE-IS,” WITHOUT REPRESENTATIONS, CONDITIONS, OR WARRANTIES OF ANY KIND, WHETHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR THAT THE USE OF THE VENTILATOR INFORMATION WILL NOT INFRINGE ANY PATENT, COPYRIGHT, TRADEMARK, OR OTHER PROPRIETARY RIGHTS. THE RECIPIENT IS SOLELY RESPONSIBLE FOR DETERMINING THE APPROPRIATENESS OF USING, REPLICATING, OR REDISTRIBUTING THE LIBRERESPIRE VENTILATOR PROJECT INFORMATION AND DESIGN. IN THIS REGARD, THE RECIPIENT ASSUMES ALL LIABILITY FOR DAMAGES, OF WHATEVER NATURE AND DESCRIPTION, WHETHER IN CONTRACT OR IN TORT, WHICH MAY ARISE FROM THE USE OF THE VENTILATOR INFORMATION AND DESIGN. THE LIBRERESPIRE TEAM, WILL NOT BE LIABLE TO THE RECIPIENT OR TO ANY THIRD PARTY FOR ANY LOSS, CLAIM, OR DEMAND MADE BY THE RECIPIENT, OR ANY LOSS, CLAIM, DEMAND, OR JUDGMENT AGAINST THE RECIPIENT BY ANY OTHER PARTY, DUE TO OR ARISING FROM THE USE OF THE VENTILATOR INFORMATION AND DESIGN BY THE RECIPIENT.
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## All design concepts come under this folder
## The design

The design of the ventilator is based on the minimum standards published by the British government [here](https://www.gov.uk/government/publications/coronavirus-covid-19-ventilator-supply-specification/rapidly-manufactured-ventilator-system-specification)


##Objectives

- Design a ventilator composed of mechanical components freely available to most
regions of the world.
- Design a ventilator without the use of a Bellow or a “Bag”, which is either not
available or limited in number in an emergency situation.
- Minimize the use of mechanically moving components to increase durability.
- Easily sourced and easily assembled by a technician with limited medical
knowledge with off-the-shelf components.
- Option to use “Wall” oxygen / oxygen cylinders or a combination.
- Retain the capability to tolerate significant pressure difference or fluctuations.
- Be effective while retaining all the safety features.
- Maintain total cost of manufacture of the ventilator within affordable range,
especially to support developing countries.
- Use a programmable chip as a microcontroller which is a cheaper option yet be
powerful enough for real-time calculations.
- Use a visual aid (LCD) which is informative as well as user friendly.
- Ensuring a safe, reliable and robust design on par with industry standards.


## Functional specification

- Functional Modes
a. Pressure control Continuous Mandatory Ventilation (PC- CMV)
b. Pressure control Intermittent Mandatory Ventilation (PC-IMV)
c. Continuous Positive Air Pressure (CPAP)

- Gas supply
a. Air and O2 supplied separately
b. Option to use wall connectors (4Bar) or Cylinder(Variable Pressure) - System can
compensate for pressure drop/variation

- Visual controls and digital features
a. Feedback control of pressure and flow.
b. Ventilator output for TV, RR, PEEP, PIP, MV, Spontaneous ventilation rate
c. Alarms
d. iOS and Android controller app with a dashboard to display patient data for
remote monitoring
e. Data analytic as an added feature for pattern recognition etc. for assisting
doctors


##Hardware specification
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7 changes: 5 additions & 2 deletions LICENSE
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state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
<LibreRespire Mechanical Ventilator.>
Copyright (C) <2020> <Manjula Herath, Anuradha Rajapaksha,
Nushen Senevirathna, Chamath Divarathne, Roshana Mallawaarachchi,
Nipuna Perera, Rajive Wisidagama, Chamila Dissanayake, Evaggelia Papia,
Prasad Ranaraja, Sahan Wasala and Sameera Nanayakkara>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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53 changes: 48 additions & 5 deletions README.md
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![ventilator](images/LibreRespireLogo.png)

## Overview

As observed in the statistics so far, unrestricted availability of mechanical ventilators to the public will likely be a key factor in the success of fighting against the COVID-19 virus in infected countries.
LibreRespire is a multi-disciplinary Sri Lankan team focused on developing an open-source design for a low cost, reliable and easily manufacturable ventilator to address this issue.
An organized group of professionals from multiple disciplines focused on developing an affordable, medical grade, robust, open source solution to acute shortage of mechanical ventilators due to COVID-19 pandemic. We have a core developer group collaborating online from different parts of the world, to design, build, test and validate the prototype.

- Even-though the initiation of the project was due to the COVID-19 outbreak, the LibreRespire team will continue the development of this ventilator to provide this essential medical device at a fraction of the cost of a commercial ventilator to developing countries, which are in dire shortage of ventilators regardless of the COVID-19.


## Objective

- Design the ventilator with easily sourced/manufactured or off-the-shelf components.
- Maintain total cost of manufacture of the ventilator within affordable range, especially to support developing countries.
- ensuring a safe, reliable and robust design on par with industry standards.
To design, build and validate a mechanical ventilator which meets minimum standards for long term ventilation with the aid of 3D printed parts and easily sourced components which can be customized for local needs.


## Design Philosophy

The design will be publicly available for
- Study
- Modify
- Distribute
- Build
- Sell the design or hardware.


## Collaboration

If you wish to collaborate and contribute to the project, please take a moment to fill the form and send to us and we will reach back to you. We will respond to every request depending on the requirements.


## Sections

| Team | Directory |
|---|---|
| Design | [Design](/Design) |
| vBOX_MechanicalConcepts | [vBOX_MechanicalConcepts](/vBOX_MechanicalConcepts) |
| AirDelivery | [AirDelivery](/AirDelivery) |
| Electronics | [Electronics](/Electronics) |
| PowerSupply | [PowerSupply](/PowerSupply) |
| Housing | [Housing](/Housing) |



## Team
The core team consists of, Manjula Herath, Anuradha Rajapaksha, Nushen Senevirathna, Chamath Divarathne, Roshana Mallawaarachchi, Nipuna Perera, Rajive Wisidagama, Chamila Dissanayake, Evaggelia Papia, Prasad Ranaraja, Sahan Wasala and Sameera Nanayakkara.


## Disclaimer

Currently LibreRespire ventilator is at experimental stage and not been validated and approved for human or animal use clinically.

THE VENTILATOR INFORMATION IS PROVIDED “AS-IS, WHERE-IS,” WITHOUT REPRESENTATIONS, CONDITIONS, OR WARRANTIES OF ANY KIND, WHETHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR THAT THE USE OF THE VENTILATOR INFORMATION WILL NOT INFRINGE ANY PATENT, COPYRIGHT, TRADEMARK, OR OTHER PROPRIETARY RIGHTS. THE RECIPIENT IS SOLELY RESPONSIBLE FOR DETERMINING THE APPROPRIATENESS OF USING, REPLICATING, OR REDISTRIBUTING THE LIBRERESPIRE VENTILATOR PROJECT INFORMATION AND DESIGN. IN THIS REGARD, THE RECIPIENT ASSUMES ALL LIABILITY FOR DAMAGES, OF WHATEVER NATURE AND DESCRIPTION, WHETHER IN CONTRACT OR IN TORT, WHICH MAY ARISE FROM THE USE OF THE VENTILATOR INFORMATION AND DESIGN. THE LIBRERESPIRE TEAM, WILL NOT BE LIABLE TO THE RECIPIENT OR TO ANY THIRD PARTY FOR ANY LOSS, CLAIM, OR DEMAND MADE BY THE RECIPIENT, OR ANY LOSS, CLAIM, DEMAND, OR JUDGMENT AGAINST THE RECIPIENT BY ANY OTHER PARTY, DUE TO OR ARISING FROM THE USE OF THE VENTILATOR INFORMATION AND DESIGN BY THE RECIPIENT.



## Repository

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