This page lists open source ventilator designs provided through the issue system.
Not all designs might have been added yet, but they can be found from the issues list
Simple Oxygen (inspired by OxyGEN respirator)
Due to the use of a windscreen wiper motor the design can be powered by a car battery and is therefore portable Submitted in issue 5.
Link: https://docs.google.com/document/d/1DPyQxNOHiTM5X76V4569y8cRv1bigq2UZ2rNMYUgOtI/
Inspired by: https://www.oxygen.protofy.xyz/
Built: No
Is it in use: No
(Estimated) cost of the build: 1040 MXN
(Estimated) time it takes to build: approximately 5 hours
Can the parts be sourced locally: Yes
- Parts:
- List of required components:
- Wood
- Windscreen wiper monitor
- Screws
- Metal bolt
- Metal rod
- AMBU bag
- Tubes
- Oxygen face mask
- Car battery
- List of required tools:
- Screwdriver
- Saw
- Drill
Other notes: easy to build, portable, cheap, easy to manufacture
E-19 Ventilator
The E-19 is a unique design so information cannot be found in other media. Likewise, it has not been previously manufactured or put into operation in health institutions. The E-19 has an evaluation and validation by the Hackathon jury called: Hack the pandemic. The purpose of the hackathon is to provide alternative solutions to an open-source source in order to reduce the impact of Covid-19 on health institutions.
Submitted in issue 7.
Link: https://a01339240.wixsite.com/e-19?fbclid=IwAR1fLzYxYkU_hgsNrvcpJDwlFHve4BmXjYUsJw3J6MZ6anL4szenvSygAzk
Built: No
Is it in use: No
(Estimated) cost of the build: 5456 MXN
(Estimated) time it takes to build: approximately 6 hours
Can the parts be sourced locally: Yes
- List of required components:
- 9mm acrylic sheet of 1m x 1m
- 3 Aluminium tubes
- 2 AC motors
- PID Controller
- 1 pressure sensor
- 1 acrylic cam
- 1 metal chain
- 1 epoxy bottle
- 1 hinge with screws
Modified Open Lung User interface
After thorough research on ventilator protoypes, open source initiatives, etc., we found a great initiative named Open Lung, based in Toronto, Canada. Using innovation methodologies, we found an area of opportunity in the design, so we suggest to add pre-set user profiles in order to facilitate the use, especially in emergency situations.
Submitted in issue 3 comments.
Link: https://docs.google.com/presentation/d/1iYtJw7RzVcXNlkU04j0Igw8Wo090l2Q_9WlNdgW1Ayc/edit?usp=sharing
Inspired by: https://openlung.org/
Built: No
Is it in use: No
Validated: No
(Estimated) cost of the build: 6492 MXN
(Estimated) time it takes to build: Depending on availability of materials/ components, and technical expertise, one-two days approximately
Can the parts be sourced locally: Most of them, although availability may vary on parts/components given the current demand of the products.
- Parts:
- List of required components:
- This are the tasks that need to be completed in order to have the final product:
- Motherboard design, STM32, SAFERTOS (Altium 20)
- Motor Control Board Design (Altium 20)
- Alarm Board (Altium 20)
- Power Regulation, protection and selection Board (Altium 20)
- Sensor Board (Altium 20)
- Battery Management System Board (Altium 20)
- 2x temperature sensor in the Motor Control Area (strongly suggested)
- 1x humidity sensor on board
- 1x temperature sensor in a thermally stable area of the PCB
- 2x Air Flow (differential pressure) and 1/2x pressure sensors in the pneumatic area
- 1x Temperature sensor in the pneumatic area
- 1x Humidity sensor in the pneumatic area
- List of required tools:
- Altium Designer 20
What is special about this design: Automated BVM, made with common materials, common manufacturing methods, low cost and covering basic features of a ventilator
The Uncritical Ventilator
Ventilator using fan from CPAP machine Submitted in issue 9.
Link: https://docs.google.com/presentation/d/1JqkY3SXch_tlAmNuQfZxYzvYZpKKcbOLVqxGSsjuPKI/edit?usp=sharing The last slide of the presentation has some documentation, information about Barotrauma and other issues with ongoing low-cost ventilator designs: https://www.youtube.com/watch?v=7vLPefHYWpY
Build instructions: https://www.youtube.com/watch?v=n57u1NvXBgw
Inspired by: https://github.com/jcl5m1/ventilator
Built: No
Is it in use: No
Has it been validated: The original design has entries from professionals, (see original design link for more info)
(Estimated) cost of the build: $3,000 MXN
(Estimated) time it takes to build: Around 5 hours, including code but if we were to introduce the necessary sensors and code them it would most likely take more time (for the first ventilator at least), then it would take less time to reproduce since the code con just be replicated to all.
Can the parts be sourced locally: Yes
- Parts:
- CPAP/12V inflator pump
- Arduino
- Brushless DC motor electronic speed controller (10A min)
- Input controller
- Power supply
- Tubing and face mask
- optional battery backup
- List of required tools:
- Arduino software
- 3D printer, if you have no face mask to attach
What is special about this design: It’s low cost and programmable, it’s also compatible with existing equipment
What help do you need with the design: To know wether it could be used in hospitals for first response in patients or to transition from a fancy hospital-grade ventilator to no ventilator at all.
Other notes:
- We know that it’s no match for a professional ventilator but we hope that it could help inane way or another to combat the breathing difficulties of patients who:
- have no professional ventilator available
- could use some breathing aid without being in a critical state (hence the name)
- are in the process of losing the tubes
AMBU4ALL
By having two ambu bags you get a better use of resources, the motor rotates at 12 rpm generating a cycle time of 5s. Bases can be adjusted every 5 mm, providing versatility in volumetric air adjustment. Submitted in issue 4.
Link: https://docs.google.com/presentation/d/1JqkY3SXch_tlAmNuQfZxYzvYZpKKcbOLVqxGSsjuPKI/edit?usp=sharing The last slide of the presentation has some documentation, information about Barotrauma and other issues with ongoing low-cost ventilator designs: https://www.youtube.com/watch?v=7vLPefHYWpY
Build instructions: https://www.youtube.com/watch?v=n57u1NvXBgw
Inspired by: https://github.com/jcl5m1/ventilator
Built: No
Is it in use: No
(Estimated) cost of the build: $1,860.05 MXN
(Estimated) time it takes to build: 3 hours
Can the parts be sourced locally: Yes