This is the spirit! Necessity is the mother of invention And innovation.

@fidelcatsro6948

4 жыл бұрын

mothercat!

Good to see some people trying to make ventilators. A very simple ventilator is fairly easy but it is the add on features that make a faesable ventilator ie closed loop feedback to detect patient breath and make sure that when the patient tries to breathe it isn't fighting a breath. Also what about blending oxygen and air so the patient who has need for high concentration oxygen due to lung efficiency deterioration can get good oxygen saturation.

It’s great to know that you guys want to contribute something to the situation.Ventilator is a complex machine not as simple as this, some one’s life depends upon this machine. If your machine squeezes that bag to the fullest it will damage the lungs. There are lot of things needed in this model so that it can be useful in this situation. I’m not demotivating you guys. But talk to an Anesthesiologists or a critical care doc. He will be able to guide you what all needed in this module so that it can be useful. Good luck

Fabulous, ingeniously simple, well-explained timely design! Thank you for sharing this video.

Suggestion: Consider turning it upside-down. Dust/Dirt falls into the gears in the current orientation

Amazing work by the team. Great job!

Necessity is the mother of all inventions. Right now is the time for the great Americans like these people to shine!!

@SicaGR

4 жыл бұрын

They are, there is a group called open source. It's international.

Love these guys! Brilliant!

Congratulations to the team

Your phone can function as a low cost ventilator /quiet fit from 2019 in India. Small , works at home as well . Controlled by a cell phone. Please check it out.

This would be great right now. If you could find a way to calculate how much tidal volume a full squeeze vs varying partial squeezes would be and set that as a dial setting, this could be usable with COVID patients. Tidal Volume and pressure are incredibly important.

Hi, well done on your simple no-frills low-cost ventilators. Btw, how much would you say each of those cost? (Materials etc) And how much do you think adding an internal fan (or fans) would cost?

They need to use a rotary pot to control speed, not low-med-high. Maintain the infant-child-adult setting but allow variable speed.

Hey great work! But also a question. Are you able to measure the Peak Pressure? Cause over 20 mbar without intubation there is a chance to ventilate the stomach which can lead to aspiration. But again great work !:) Greets

We need these now

Thank you for sharing this amazing story of innovation and perseverance! It is wonderful to hear of other engineers working to solve the global ventilator shortage.

U can use wiper motors..

We need this now!!!!

If the motor and squeeze arm assembly fit over the top of the bag valve mask so the opening for the squeeze arms is facing down that would stop most dust from falling into moving parts of the respirator, bag valve could be secured to respirator by hooks with elastic or rubber bands around connection ends. If the motor body that generates heat is raised on top of the respirator with heat sink fins and a cooling fan like a cpu in a computer on the opposite side of the arms that are no facing down that could solve your overheating problem. Some sort of legs with ability to secure respirator to table or IV stand or hook holes might be a good idea to add to respirator as well.

Well, this is more relevant then ever.

so with bag valve mask doesnt require an air source or O2, i guess it gets air from atmosphere.

Try using a reciprocating action with a simple DC motor that connects the linkage to a bushinged shaft that would compress the bag. Voltage adjustment would control the breathing rate while simple mechanical adjustments control the compression volume

THANK YOU. I was in the process of making this when I saw your video. Can you please share DC motor spec? I am using stepper motor 28BYJ-48 on Arduino.

@vihansoni2655

4 жыл бұрын

Bro me bhi bnana Chahta Hu ye

I like the concept, but why not use a crankshaft and connecting rod instead of a servo, rack, and pinion, (the last 2 of which fail in dirty environments)?

If the Covid-19 pandemic is as bad as the CDC seems to think it will be...these files should at least be brought to the attention of the FDA. There are only so many ventilators available.

@kjwcontact

4 жыл бұрын

Yes, I wonder if, in a pinch (as we are in now) 3d printers could be quickly modified for this purpose. See video kzread.info/dash/bejne/pp-isspmmM2bicY.html

Can you send us design files , we are from Egypt, how can u control max pressure

Congratulations!

a gravity bong is an artificial lung made out of an apple juice bottle. cheap, available, 2 parts. all you need is an up and down motion. think how a crankshaft turns rotational energy into linear raising and lowering pistons.

@elwoode8664

4 жыл бұрын

Actually this mashine can use a AMBU SPUR II Bag which is available for single use (complete with mask, tubes and reservoir)

This is awesome thanks.

Can it be made in large volumes?

here in Italy, no matter how critical the situation is, neither the authorities nor the general public will ever accept such uncertified engines, even if they can save lives. I really hope (but I doubt) that this mentality will change.

did they managed to actually make some progress? or they just spent the money like Boeing?

@Zoza15

4 жыл бұрын

There are even regular engineers or people coming up with their own versions, the thing now is to make the ultimate ventilator cheap enough for regular households..

Try using diaphragm pumps( solenoid operated)

Great job.

Can you please release ( a version ) of this under the GPL or similar open hardware license?

@MarkProffitt

4 жыл бұрын

gitlab.com/TrevorSmale/OSV-OpenLung?fbclid=IwAR0yHDvhAkBOpoLHQniW4StkDV7W7h1PwtE0AFKA6_6cPzx8VQFgcnXIc3o

@yossychec1383

4 жыл бұрын

solo controlan velocidad de un motor, eso lo hace cualquier microcontrolador como el arduino

Ok , how about this ; a car windshield wiper switch set to intermittent, to a car blower motor , to a tube to a mask ? You could hook it to a 12 volt converter or a 120 volt converter ?

Fully mechanical is a better design. Use a lobed disc or crankshaft. Move or change disc to adjust breath size.

@jakub-kaminski

4 жыл бұрын

Hi Mark, could you elaborate more on this topic? Are there any completed projects with the fully mechanical design you are referring too? Doing volunteering in Poland. Thank you.

@xpim3d

4 жыл бұрын

​@UCI691qvykUAPrJep-T4aCcQ where are the designs?

@latimer4964

4 жыл бұрын

Crankshaft will not work, you typically need to change volume, duration, etc. based on the patient, or you will hyperventilate, make them hypoxic and possibly either collapse a lung or kill them. Changing out multiple lobes or disks is too much work for someone in an emergency event, especially when every second counts. You need simple controls. In this instance, while I dont like their rack and pinion design, a basic microcontroller is fine for operation and changing parameters. They are cheap, and you can run two for redundancy if needed.

@MarkProffitt

4 жыл бұрын

@@jakub-kaminski This should give you the concept. Change the position or length of the arm to change the volume of air per pump. I'm getting a better design but this should be enough for you to start on your own. kzread.info/dash/bejne/lX19xtaud7q9pLA.html

@TheCanalZone

4 жыл бұрын

@@MarkProffitt This is just a link to "DIY Reusable Antiviral Mask to reduce spread of Corona Virus Covid19." His suggestion to change the pos/len of the arm is horrible. A software mod to control the depth/speed of the compression is a far more cost effective solution instead of modifying mechanical parts.

Salute to u guys god bless u all

Good! Where is YORE code?

How to calibrate the ventilators?

Best with silent stepper driver - Silent Step Stick. Dryspin (IGUS) - no bearings, just plastic, and high-thread angle = ability to apply high force quickly. No guide rails needed., just pivot plates. 'Stationary' side can be attached to IV pole, along with electronics. Use Ryobi drill motor 18V for power, 3Ah ~ 6hours.. enough time to charge 2nd battery.

@NewBalance-pu8ft

4 жыл бұрын

Have Prototype? Make Video!

Hello I hope this comment get your attention, I am from Philippines, an engineering student, someone reached out to me to see if I can make these while he provide the parts and materials. I did see the updated one on your website, which is kinda complicated. I wanna know if the one in the video is still on going for development, and hope I can also get Materials and Instruction for that. And if there was any "CONS" as to why the one in the video is not continued to be develop, can i know why. This would really help alot in our situation here. Thanks in advance

Excellent . Very good. How can we buy it

How can you prevent barotrauma? I mean, how do you control the pressure, pumping speed, gas flow, oxygen concentration? How is your Idea and construction is better than that MIT publication from 2010 (web.mit.edu/2.75/projects/DMD_2010_Al_Husseini.pdf)

How can I get access to the design please. I am a doctor in Egypt and we need this ASAP.

@mohdafzel

4 жыл бұрын

Check this video and go to the website for more details kzread.info/dash/bejne/qGF6k7l6cbHIm5s.html

@miroslawmoczyrog

4 жыл бұрын

You might want to have a look at the OxVent design. It uses pressurized gas from a line to squeeze the bag, and the only mechanical part is the gas valve

@kakr8r785

4 жыл бұрын

@@miroslawmoczyrog please provide me also information we are also in need of this very immediatly...want to know the full working of components and pressure details...please help

@miroslawmoczyrog

4 жыл бұрын

@@kakr8r785 I am not associated with that UK team, but they do have a twitter account and a web page: twitter.com/OxVent oxvent.org/ The design is so simple, that it should be possible to manufacture them anywhere, where you can source a suitable gas valve and a simple micro controller board

@sudhirsumongkol8972

4 жыл бұрын

Contact Dean of King Mongkut University in Bangkok.. Well done and low cost.

sick timing

Very smart young woman.

I don't like the sound of the linear actuators - the motors are under significant stress and it won't be long until the gears wear out.

@androidgamer9934

4 жыл бұрын

its a prototype

@SicaGR

4 жыл бұрын

You may not like that sound but, that is not what that sound means. Now if it was grinding and fluttering it would. Servos, in general, make that sound.

Can you please make a low cost radiographic sensor....

Lung cant take air in or out, so an external machine is needed. To pump air into lungs, keep it there for certain time, after that machine suck all the air out, pump new again, So we are talking about 2 pumps here… 1 for inhale and another for exhale, Her machine cannot perform both function like a 2 Stroke Engine.

Use a window motor. ingress resistant and gearbox is contained. High availability and automotive motors can work down to 6v (though speed is reduced) per requirements. Though this video is nearing 1 year old, these students and the professors saw some future need. I know those smart students are braving it and going to their campus to create better solutions with the resources at hand.

Awesomeness

If the healthcare establishment has Oxygen and Air at 4 Bar pressure (which most do) you can use 2 shraeder connected hoses to the ventilator and then control the blending by solenoid valves.Pressure sensors and flow sensors are normally incorporated into most ventilators with mechanical over pressure safety "pop off" valves.Remember it is possible to kill someone with bad technology which is why rigourous testing and parallel redundancy is needed as a safety backup circuit...Rather like a watch dog on a p.c ...MORE COMPLICATED THAN PEOPLE THINK

i think it inside the clear box is an better idea . No parts to break

Can you'll make it open source and provide em with details to make please. Special now with the current epidemic. Kind regards Southern Africa Please do contact me ASAP Perhaps our universities could collaborate, that would be wonderful University of Pretoria

What about something like a car cranckshaft...you could operate many at same time

Great job BUT, how do you adjust the set breath with a patient who has already shallow/spontaneous breathing? How do you adjust this machine work with a patient who is actively moving his head/moving... and many other similar issues with this bag... I'm an RT by the way and I would love to see such great ideas that can make our patient assisting easier especially during CPR stuff.... Thanks for sharing. Stay safe guys

Your look is simply super....

Yup suddenly these videos erupt ..... as if you knew the future or this video if recorded in past couple of days and the posting date set 9 months back...interesting

Check out V2 of the device, the ApolloBVM, here: kzread.info/dash/bejne/oYCFl8SRkc69oZs.html&feature=emb_title

good maam/ sir im sherwin semitara from philippines you me help me to make this ventilator cause not my own for the patient of covid 19 to help them breath please help me please i do research on this or tips how to make it i can read book like your thesis please help me books for my reference

PHENOMENAL

Good keep it up

Today more than ever the world needs respirators!!!

What about PEEP or I:E

What is the provision for avoiding CO2 buildup for long term use? [This is not an issue for short-term rescue situations]

@jpbaker19881

4 жыл бұрын

The ventilation itself is the provision to blow off C02. Exhalation is a passive process. If you have a build up of C02, you increase the ventilatory rate.

@dwilliams2068

4 жыл бұрын

@@jpbaker19881 I assume you are familiar with CPAP and BIPAP units as well as classic ventilators. My comment was with respect to the original video.

Hello all! I am Madison Nasteff, one of the inventors of this device. We are currently in the process of working with some partners in late stage engineering and manufacturing so that we can use this device to help with the COVID-19 pandemic. This was a student project, so we have some work to do, and a big push in the next couple of weeks to get this ready to help save lives. We are looking for exposure, additional funding, and manufacturing partners. If you can help with any of this, please reach out to me via LinkedIn.

@TheOrangeUkulele

4 жыл бұрын

drive.google.com/open?id=15gdCGbb69dE9-a_iI2hxFZ4ZxI5C0hmu

@TheOrangeUkulele

4 жыл бұрын

This link contains CAD files as well as some documentation on our project. I want to be clear. This design was never intended to be used on COVID patients. We never completed any clinical trials of any sort. We created this as seniors in college with the intention of presenting a project that could potentially be picked up by a larger team. With respect to the COVID crisis, we anticipate this project could be improved upon and implemented in hospitals likely NOT for COVID patients, but rather to alleviate patients who need less sophisticated ventilation, thus freeing up the existing (high tech) ventilators for COVID patients.

Get rid of the sliders too much friction and gears will be unreliable. Use a piston type mechanism from a motor to squash the bag

great

So a ventilator is basically a device continuously providing CPR to the patient who cant breathe on his own?

só p ambulância transportar

while those are ok but if u have worked with ARDS patient u know that they wont survive on bagging as u wont be able to control a lot of things.

@jpbaker19881

4 жыл бұрын

Agreed. While the a ventilator is as simple a machine to bag a patient, the COVID patients who develop ARDS will need a lung protective strategy where pressure is a greater necessity that the volume from the ventilations.

DIY Reciprocating Cycle Linear Actuator with Gear Motor + 12V Power Supply + PWM CONTROL REGULATER

Alternative design here: kzread.info/dash/bejne/lIuY28-bZr2votY.html

Genius

Blueprint free

Medtronic released files of simple ventilator

Hi, can we get the STL to this?

@MouldySoul

4 жыл бұрын

RICE university are not releasing the full CAD files

@MarkProffitt

4 жыл бұрын

Lobed disc like a crankshaft is a better design. No electronics. Move or change disc for different breath capacity.

@xpim3d

4 жыл бұрын

​@@MarkProffitt where are the designs?

@MarkProffitt

4 жыл бұрын

@@xpim3d This should give you the concept. Change the position or length of the arm to change the volume of air per pump. kzread.info/dash/bejne/lX19xtaud7q9pLA.html

هذا الفيديو اصبح مهم في هذه الايام

well you can buy them for 350 online

Hi, I am professor in Brasil and we are planning to build such equipment, could you send documents of how to build this device? We are planning to do mass production here because of the covid19

what is lacking is sensors.

Wow

Hola amiga necesito colaboración con tus diseños por una buena causa desde Colombia necesito hacer tus proyectos para ayudar a mi país colaboramos

As some have said this is too complicated in gearing. Cutting out of plastic gears requires a laser cutter. The unit needs a fan as reported by the young lady commenting. Worse of all it seems to run off a very expensive power supply sitting on the desk. The rotating windshield motor design seems much more practical.

I need one please send me one

Needed too much of these in Pakistan

Ever seen how a hair trimmer wrks?? stepper motor with that mechanism will b better...

Hello im interested on this machine, can i order it? Or you can share the tools, schema and materials im planning to make it too for my father

@hintzod

4 жыл бұрын

Hey I am not part of this project but it looks relatively simple to copy at least a crude version. You need a rack and pinion system, DC motor, Programmable Relay (I would look at forward, reverse, stop/delay relays on ebay), and most importantly a bag valve mask and intubation tube. The students here did a great job by the way, and very well explained on how their system works!

@MarkProffitt

4 жыл бұрын

Lobed disc like a crankshaft is a better design. All mechanical. No electronics. Move or change disc for different breath capacity. kzread.info/dash/bejne/lX19xtaud7q9pLA.html

@-k--2965

4 жыл бұрын

github.com/jcl5m1/ventilator/wiki/Notes-from-chatting-with-a-pulmonologist

👏👏👏

It does not work, it can't inflates the bag

If only mechanical ventilation for non compliant lungs was as easy as squeezing a bag with a fixed volume of air delivered.......

@celcorsystems1890

4 жыл бұрын

Can you please elaborate? What are some other aspect to consider when designing a ventilator?

@celcorsystems1890

4 жыл бұрын

@Ashley C its just a valve design, not a complete ventilator

@DocPetron

4 жыл бұрын

It can be. Just increase the tidal volume and put in an adjustable pop off valve and you will have a pressure limited time cycled imv mode of ventilator. You will need to add a peep valve too. It's not ideal but very doable.

She can compress my bag

You Americans are the only people in the world capable of building a spaceship in a garage. If you bring industrial production back to America you will return to being the No. 1 in the world, and this global crisis that has been going on for years will end ... first economic and now also for health. God help you, greetings from Italy, here we are oppressed by politics and the covid-19

@PeterC3400

4 жыл бұрын

MOROMAX: Thanks for your encouraging words. We Americans have let ourselves become so handicapped by our politicians that we can usually guess what will happen next by guessing the best, most useful thing that SHOULD be done and flipping it upside down to the worst thing that our elected officials COULD do. That way of estimating is usually accurate. Now, it's far worse, since we have an ignorant, uneducated, self-centered, lying sociopath as President and he keeps flinging poop at us all and sucking on his toes while the world burns. Even the people we elect are usually upside down from who we SHOULD have in power. You people in Italy got hit hard and was difficult to watch, knowing that a similar situation was coming here next. This week is when the hospitals may overflow here in California. This morning, when I look in the mirror, I see YOU. My thoughts are with you over there. I hope the infection rate is starting to go down there. You are our mirror...

Learn about ventilators: kzread.info/dash/bejne/ioaHj5ttc5bfj7g.html

(build one that's the Least Number Of Parts ...works well ...mass produce noW)

Greedy companies won’t like this idea. They can’t possibly make a profit. Smh

Jeez. People with CV have ARDS, it’s way more complicated than this

Viral load...the air still needs to be filter via an n95 otherwse you will introduce more virus particles into the patient.

Do NOT rely on a plastic Gear mechanism. Do NOT Ever rely on modified SERVOS they have HORRIBLE repeatability and will burn out FAST. Simple Simple Single StronG Motor ..Single lever compressing from One Side. Shoot for No Friction , Less Parts etc. Just remember it'll almost need 1000 repetitions an Hour (24,000 per day = over 100,000 in 4-5 days = approx 700,000 per month x however many months you want it to work before a nurse is trying desperately to fix a motor while a person is suffocating because the plastic part completely Completely wore down. (I originally typed to "leave out the arduino" but Sorry I dumbly didn't realize the amount of calculating that's needed to adjust the correct pressure / flow etc. so i deleted that part) (not to be scary , just imagine . When I did a motorized window display that only ran 12 hours a day ...two pieces of plastic just bumped each other gently once every 5 seconds ...after a couple months the plastic pieces were gone and there was a tiny white powder below . (the plastic had been ground to Dust!)

@sorontar1

4 жыл бұрын

what's wrong with arduino? If you add some measures (oxygen or co2 concentration, humidity, pressure), I think it is a perfect fit. Its cheap and easy to access.

@MarkProffitt

4 жыл бұрын

kzread.info/dash/bejne/ZamkrbCnk5qblco.html

@ChristopherHillman

4 жыл бұрын

@@sorontar1 YEAH I Sorry you're right 'm going to Delete that part of the comment (IF That's taking into account pressures etc. then YES It IS a good match . Sorry I was seeing people building so many simple systems that I was assuming no feedback was needed etc. . As soon as I did ANY research I saw immediately that without feedback to adjust pressure or attempt triggering by the patient taking a breath etc.etc.etc. you can do lung damage easily etc. (I assume everybody creating simple cam or lever mechanisms didn't check first??)