5 ms·

“Open Source” Ventilator Project by University of Florida

68 points by ck2 7y ago

ck2 7y ago
The vent to room air even with a hepa filter is a tiny bit concerning, anyone present should be aware of the risk. In a hospital, exhaust is (usually) sent to the scavenger for additional filtering and safer output area. https://en.wikipedia.org/wiki/Scavenger_system https://en.wikipedia.org/wiki/Scavenger_system That is why you don't use a CPAP at home with anyone else present because it will aerosolize any infection.
- bowmessage 7y ago
  What is one supposed to do if they need a CPAP to sleep and live with a loved one?
  - johnchristopher 7y ago
    I sleep on the sofa, or in the guest's room.
- deleted 7y ago
  [deleted]
- gus_massa 7y ago
  Is it possible to filter it, or bubble it though a chlorine solution, or something?
  - emilfihlman 7y ago
    >bubble it though a chlorine solution Yeah, and it's not even hard to add to this.
- burfog 7y ago
  Run it through a hair dryer set to maximum heat.
- mdon 7y ago
  Surely some context is missing here. One of the use-cases for a cpap is reducing your own snoring for your bed partner.
  - fortran77 7y ago
    They allow CPAP on airplanes. If it can really aerosolize infectious agents, then this is an outrage, and these should be banned from airplanes immediately.
RobertoG 7y ago
This is another project, simple but in a an advanced state of development. An automated manual AMBU type ventilator that uses a windshield wiper motor: https://www.oxygen.protofy.xyz/ https://www.oxygen.protofy.xyz/ There are two versions: makers and mass industrial production.
fermienrico 7y ago
Finally a proper design with proper engineering and reliability testing. Also, no 3D printing nonsense (which makes production of high volume components non-viable).
- throwawaynerdy 7y ago
  Did you read the article? There's not much of a design. There are some specifications. It seems they are currently trying to split up work. It's definitely unfinished.
  - Fiveplus 7y ago
    Can I get a link to your finished project? Thanks!
    - bathtub365 7y ago
      You don’t need to be better to criticize.
blhack 7y ago
The spirit of all of this inspiring, however: I worry that a lot of these efforts are actually going to be detrimental to their intended causes. We're talking about potentially needing hundreds of thousands of these things. That's hundreds of thousands of pressure transducers, pumps, control circuitry, tubing connectors, and potentially millions of feet of pneumatic tubing. As much as we're looking at a design problem, we're looking a supply chain problem. What I'm worried about is that thousands of hackers are currently buying up what could be valuable components for their prototypes, when they should be making those components available for mass producing an existing commercial design. If you are hacker and want to help the problem: the hospital systems need you to make face shields. That's what they're asking for. If you are in the Phoenix area and can assist in printing the prusa face shield parts (https://www.prusaprinters.org/prints/25857-prusa-protective-face-shield-rc2 https://www.prusaprinters.org/prints/25857-prusa-protective-...) please send me a DM to $username@gmail.com We are currently coordinating the local effort with the hospital systems here.
- nerfhammer 7y ago
  shield using just office supplies https://www.instructables.com/id/DIY-PPE-Face-Shield-3D-Printer-Not-Needed/ https://www.instructables.com/id/DIY-PPE-Face-Shield-3D-Prin...
- smoyer 7y ago
  Penn State's Applied Research Lab is leading a project to create an open-source face shield ... if you'd like to help, here's the link: https://masc.psu.edu/ https://masc.psu.edu/
- lonelappde 7y ago
  > We're talking about potentially needing hundreds of thousands of these things. 30K in New York soon. Millions worldwide.
dang 7y ago
There are a number of similar projects among the flood of ventilator threads, if anyone wants to compare: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&query=Ventilator%20comments%3E3&sort=byDate&type=story https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
maxwelludz9 7y ago
Registered Respiratory Therapist first-time post here Siemens Servo 900 Ventilator C/D/E consists of two separate units Electronic/Pneumatic driven. Best for intensive care situations, but works in transport and anesthesia, Neonatal, pediatric, adult. Interface panel settings with rotary dials. No GUI. When I was talking with Seimens sales rep, he said the original design was intended for anesthesia to make fine grain settings. The design is excellent. I've used both C/E myself, 16 units per shift for three straight weeks 2006. I've seen DIY vents floating around, if people are willing to go out on a pandemic limb, use something already proven. servo 900c post test panel display [video] https://www.youtube.com/watch?v=2d2uciOwlwY https://www.youtube.com/watch?v=2d2uciOwlwY The c/d/e series have similar parts in a pandemic situation interchanged. The inner components are easy to access lift the top cover exposes all the working parts that allow quick repair and cleaning. Units can be found in the US, UK, and EU on eBay and refurbished medical suppliers. https://www.bemesonline.com/siemens-900c-ventilator/ https://www.bemesonline.com/siemens-900c-ventilator/ Siemens 900C Ventilator refurbish https://www.ebay.com/c/24004926166 https://www.ebay.com/c/24004926166 900E $499.99 / 900c $450.00 https://www.ebay.com/c/1410306550 https://www.ebay.com/c/1410306550 900c "spare parts only" $195.00 blog post: https://siemensventilator.blogspot.com/2010/06/siemens-servo-900c-ventilator-in.html https://siemensventilator.blogspot.com/2010/06/siemens-servo... volume control with sight, pressure controlled, SIMV+ pressure support, CPAP Might contain more links than usually allowed; I'm trying to point out there are many to be found we do not have to reinvent one. There might only be a few hundred, but they can be ready now.
lonelappde 7y ago
This is a crazy. The US (Connecticut) used eminent domain to seize people's houses to give them to a pharmaceutical company. They can use it to seize existing ventilator designs and publish them.
WarOnPrivacy 7y ago
It seems that all of the recent ventilator projects require intubation. Have there been any non-invasive ventilator projects?

68 points by ck2 7y ago

ck2 7y ago

The vent to room air even with a hepa filter is a tiny bit concerning, anyone present should be aware of the risk. In a hospital, exhaust is (usually) sent to the scavenger for additional filtering and safer output area. https://en.wikipedia.org/wiki/Scavenger_system https://en.wikipedia.org/wiki/Scavenger_system That is why you don't use a CPAP at home with anyone else present because it will aerosolize any infection.

bowmessage 7y ago
What is one supposed to do if they need a CPAP to sleep and live with a loved one?
- johnchristopher 7y ago
  I sleep on the sofa, or in the guest's room.
deleted 7y ago
[deleted]
gus_massa 7y ago
Is it possible to filter it, or bubble it though a chlorine solution, or something?
- emilfihlman 7y ago
  >bubble it though a chlorine solution Yeah, and it's not even hard to add to this.
burfog 7y ago
Run it through a hair dryer set to maximum heat.
mdon 7y ago
Surely some context is missing here. One of the use-cases for a cpap is reducing your own snoring for your bed partner.
- fortran77 7y ago
  They allow CPAP on airplanes. If it can really aerosolize infectious agents, then this is an outrage, and these should be banned from airplanes immediately.

RobertoG 7y ago

This is another project, simple but in a an advanced state of development. An automated manual AMBU type ventilator that uses a windshield wiper motor: https://www.oxygen.protofy.xyz/ https://www.oxygen.protofy.xyz/ There are two versions: makers and mass industrial production.

fermienrico 7y ago

Finally a proper design with proper engineering and reliability testing. Also, no 3D printing nonsense (which makes production of high volume components non-viable).

throwawaynerdy 7y ago
Did you read the article? There's not much of a design. There are some specifications. It seems they are currently trying to split up work. It's definitely unfinished.
- Fiveplus 7y ago
  Can I get a link to your finished project? Thanks!
  - bathtub365 7y ago
    You don’t need to be better to criticize.

blhack 7y ago

The spirit of all of this inspiring, however: I worry that a lot of these efforts are actually going to be detrimental to their intended causes. We're talking about potentially needing hundreds of thousands of these things. That's hundreds of thousands of pressure transducers, pumps, control circuitry, tubing connectors, and potentially millions of feet of pneumatic tubing. As much as we're looking at a design problem, we're looking a supply chain problem. What I'm worried about is that thousands of hackers are currently buying up what could be valuable components for their prototypes, when they should be making those components available for mass producing an existing commercial design. If you are hacker and want to help the problem: the hospital systems need you to make face shields. That's what they're asking for. If you are in the Phoenix area and can assist in printing the prusa face shield parts (https://www.prusaprinters.org/prints/25857-prusa-protective-face-shield-rc2 https://www.prusaprinters.org/prints/25857-prusa-protective-...) please send me a DM to $username@gmail.com We are currently coordinating the local effort with the hospital systems here.

nerfhammer 7y ago
shield using just office supplies https://www.instructables.com/id/DIY-PPE-Face-Shield-3D-Printer-Not-Needed/ https://www.instructables.com/id/DIY-PPE-Face-Shield-3D-Prin...
smoyer 7y ago
Penn State's Applied Research Lab is leading a project to create an open-source face shield ... if you'd like to help, here's the link: https://masc.psu.edu/ https://masc.psu.edu/
lonelappde 7y ago
> We're talking about potentially needing hundreds of thousands of these things. 30K in New York soon. Millions worldwide.

dang 7y ago

There are a number of similar projects among the flood of ventilator threads, if anyone wants to compare: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&query=Ventilator%20comments%3E3&sort=byDate&type=story https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...

maxwelludz9 7y ago

Registered Respiratory Therapist first-time post here Siemens Servo 900 Ventilator C/D/E consists of two separate units Electronic/Pneumatic driven. Best for intensive care situations, but works in transport and anesthesia, Neonatal, pediatric, adult. Interface panel settings with rotary dials. No GUI. When I was talking with Seimens sales rep, he said the original design was intended for anesthesia to make fine grain settings. The design is excellent. I've used both C/E myself, 16 units per shift for three straight weeks 2006. I've seen DIY vents floating around, if people are willing to go out on a pandemic limb, use something already proven. servo 900c post test panel display [video] https://www.youtube.com/watch?v=2d2uciOwlwY https://www.youtube.com/watch?v=2d2uciOwlwY The c/d/e series have similar parts in a pandemic situation interchanged. The inner components are easy to access lift the top cover exposes all the working parts that allow quick repair and cleaning. Units can be found in the US, UK, and EU on eBay and refurbished medical suppliers. https://www.bemesonline.com/siemens-900c-ventilator/ https://www.bemesonline.com/siemens-900c-ventilator/ Siemens 900C Ventilator refurbish https://www.ebay.com/c/24004926166 https://www.ebay.com/c/24004926166 900E $499.99 / 900c $450.00 https://www.ebay.com/c/1410306550 https://www.ebay.com/c/1410306550 900c "spare parts only" $195.00 blog post: https://siemensventilator.blogspot.com/2010/06/siemens-servo-900c-ventilator-in.html https://siemensventilator.blogspot.com/2010/06/siemens-servo... volume control with sight, pressure controlled, SIMV+ pressure support, CPAP Might contain more links than usually allowed; I'm trying to point out there are many to be found we do not have to reinvent one. There might only be a few hundred, but they can be ready now.

lonelappde 7y ago

This is a crazy. The US (Connecticut) used eminent domain to seize people's houses to give them to a pharmaceutical company. They can use it to seize existing ventilator designs and publish them.

WarOnPrivacy 7y ago

It seems that all of the recent ventilator projects require intubation. Have there been any non-invasive ventilator projects?