Imagine the design process; trying to achieve all the stringent objectives set down by the client. Quite ingenious design elements; some borrowed, some invented. Really, some unsung heroes are involved in this work.
One of the features you missed (or didn't mention) is the two-stage job it accomplishes in a fraction of a second. The cannula moves forward with the metal needle protruding from a plastic sheath. Both are pushed under the skin, then the metal needle retracts leaving the flexible plastic sheath where it is in the skin. So rather than a metal connection between the device and your skin, you have a flexible plastic tube.
That's a really neat mechanism. Particularly the spring clutch onto the shaft and muscle wire ratchet. I guess that the risk of air injection is not a major risk due to the tiny amount being does at a time? Not so keen on the high power stabby bit. Particularly when it happens automatically at a relatively random time once attached to you.
You attach it to a fatty area... so, a tiny bit of air isn't a huge issue. :). It's actually rather bad if it ends up in a vein. The high power stabby happens when you attach it. A lot of the pumps have a little tube and a gun to apply the needle. On that kind... you take the needle out and it leaves a catheter. :) I've not really seen a pump quite like this one though. Mind you... an ex of mine (type 1) had the insulin pumps... so I am not exactly an expert or anything! My ex's pump was the reusable kind where you replace the attachment piece. (Which connects via a tube to the unit). This unit seems disposable... weird!
Typically you'd need to inject a surprisingly large amount of air to cause a problem (e.g. 10ml or more in one go). That would probably be more than the chamber in this pump contains.
What a great video! Thanks to this video, next time I put an Omnipod on my arm, I will treat it with a lot more respect. My other thought is, after seeing the sophisticated engineering that went into this, and how compact the pieces are and the way they fit together, it’s hard to imagine that this is disposable every three days.
Excellent teardown, thank you! I just tore one down myself then came here to see what a professional had to say about it. My son is Type1 diabetic and just started using these. - The stabbing action happens when you tell it to during setup, so it's not unexpected. - Also, I think the biggest issue with recycling these is that they are considered a biohazard after being used for medical treatment, so there's no safe way to collect these en-mass and then reuse parts. Yeah pieces could be sterilized but I think they'd be better off just grinding them to dust after removing the batteries and then continue to recycle as normal.
Well I'm 58 years old, been an electronics engineer for half my career and an IT tech for the other half, and I've never heard of muscle wire! Every day is a school day as they say!
Thanks so much for doing this teardown. My youngest was diagnosed with Type 1 earlier this year and I've been considering getting her a pump but I'm struggling mightily with the potential consequences of a flawed unit. The simplicity and elegance of the hardware design is encouraging. As someone with 20+ years in infosec and 4+ years tinkering in RF, the 'other half' of this system still has me a bit concerned. :/
I've had an insulin pump for almost the last 15 years. At first I had the Medtronic Minimed 508, now I have the Minimed Paradigm Veo 754. These things are a godsend and you would pretty much have to be an idiot to use the "old school" methods. I also don't entirely buy the security concerns about these. You usually put around 250 units of insulin in these (less for a child). Even if the potential attacker manages to inject all of the insulin remotely it won't really kill you. Insulin is very slow acting (even the fast acting ones). You will certainly know that you have a low blood sugar before you would fall into a coma. And in that case you will do something about it. And you should always have a hypo kit near you in case you fall into a diabetic coma. And if you are at work/in school somebody should probably know how to use that hypo kit. If you are in public then an ambulance will help you as well. Besides... The RF range of these things is pretty limited. So chances are that any attacker would have to do this in public which minimizes the possible damage that they could do.
jcims I've had diabetes since age of 4 and started using insulin pump at 18, used Medtronic's and Animas and experienced issues with both, Omnipod's have been one of greatest things for T1D over my past 27 years with the disease. Least painful insertion of any and best thing is it inserts itself, giving you appropriate angle of insertion with accuracy that takes away "human" error that can lead to potential hospitalizing situations.
I've had the Animas 2020 (twice) and I currently run the Animas Ping pump (yes, I love Animas pumps!!!) However, I just received a letter stating that Animas is no longer going to be making or selling insulin pumps (so now that my pump is almost out of warranty I have to look into getting a different pump and don't like the medtronics line (and there aren't too many more companies to choose from (please do your research before deciding anything). After doing MY research I am currently attempting to get the tubeless OMNIPOD. I wouldn't be a day without my insulin pump!!!
Great video sir, especially for me as Type 1. I've just started using an Abbott freestyle Libra which is a type of wireless constant glucose monitor, I took the wireless sensor apart with a view to doing a tear down then realised I don't know a great deal! 🤔 thanks again
Nice to see some teardowns coming through again. Mike does seem to have varied number of differing subjects, with a good balance of mech and elec. Cheers Mikey baby :)
Aye, hope they have decent crypto in these things these days. Barnaby Jack hacked another make of insulin pump and got it deliver what would be a lethal dose in 2011.
I thought the break-off corner was going to be for decommissioning unsold out of date units so they didn't get onto the black market (til I saw the caption) great teardown - medical stuff seems a bit different. it's got to be as idiot proof as consumer electronics if you're sending patients off with it, but totally reliable and well engineered.
the muscle memory motor also has another plus. it is incapable of squirting all of the insulin at once, the maximum rate even on errors is small enough that the user may be able to react and remove a malfunctioning or compromised device.
What is not apparent in this video is how the muscle-motor steps until the mechanism reaches the piston in the tank before the clutch-spring is released. This is how the pump ‘knows’ how much insulin is injected into the tank. The release-cam for the needle is attached to the outer axle, so the needle won’t release until the clutch engages. As mentioned in another comment, the metal-needle is inserted, and then retracts, only the outer plastic tube is embedded in the skin. This insertion takes only 1/200 of a second, and that is why there is a hefty spring on the needle-actuator.
Loved this video a year ago - just now talking to a coworker about how she is getting a new insulin pump...sure enough it's this omnipod. In the USA it costs 300 dollars...Here in Canada it costs 6300 dollars for the omni ecosystem plus 300/mo in pods. Crazy.
Type 1 diabetic who uses omni pods here and I have to say nice tear down of the thing but it’s not really an unexpected stab from the needle it goes in when you tell it to while you’re setting up the pod. And I can set it up and deliver insulin all from my phone thanks to a handy app called loop (loop needs to be made by yourself since it’s not in the AppStore but there are some online groups with instructions on how to make the app on Facebook im guessing)
Two videos in such a quick time! Only recently found your channel but I have recently watched nearly your total back catalog. I wish I worked in an industry where I could send you doo-dads. You should make an electronic kit in some form for purchase, it would be a great way to support these (in a small way).
i'm a bit confused as how that muscle wire actually makes that piece of metal move because it looks like that movable part is in about middle of that wire and thus would not move when the wire shortens
Anyone notticed that once the canula was triggered, the actual "needle" that was inside, retracted back so only the soft plastic would remain inside the body?
Fantastic ... I just finished tearing one down myself, and was analyzing it's operation. I had about 80% right, but you filled in the critical 20% that puzzled me! thanks. BTW could you elaborate a bit on your setup to operate the muscle wire ? Thanks!
Interesting teardown but you were waving it around so much I couldn't see what you were trying to point at. I don't know if a lower zoom would be better, or just sticking the device down to the desk so you can't move it around .
agreed, it was a little bit motion sicky, and the focus was a little off sometimes. still, mike got the point across pretty well and it was a lot of tiny little things so overall it's not bad I think.
Had the same issue when I tried to make videos on small components! It is really not easy to solve it. I found that with my camera the only workable solution is to put it down on top of the table, preferentially on a dark cloth/paper as background to increase the contrast.
The break off pcb corner could be to hard "safe" the units? Ie, by breaking the power to the muscle wire driver, the capstains can't turn and fire the needle mech You don't want these units accidentally firing out there stabbers when being recycled if not used!!
Don't want to sound horribly critical here, Mike, as I know these vids take a lot of effort (which I'm not contributing myself, yet) but when you're shaking the things around under the zoom it's really tiring to watch. Will it work if you put them on the bench and poke at them instead?
Medical stuff is always interesting. This pump is an awesome construction wich combines many different techniques on small room. We have an actuator that converts electrical energy in temperature energy (is it the right term?) and from there to kinetic energy. The force is multiplied by a screw and gives the needet acuracy too.... This is cool! An interesting question in my opinion is, how much energy is left in the batteries after the job is done?
As I'm a type 1 diabetic I'm using those all day. Now I know even more about them, thanks! I must say especially in the early days they were often (2 out of 10) doa. It's clearly not that easy to fit all the mechanical bits perfectly together in the factory... The only thing that worries me using them is the fact that the canula has to be perfectly sterile when inserted. How do they take care of that? Is the whole unit sterilised?...
But I think they are designed very well. When there is a fault the unit detects it. Once I had a leaking battery in one of them. Not nice but the alarm went off like crazy (as it's always :-/)
impressive design. not having to have a conventional "Motor" must reduce costs, avoid having to have stepdown gears and make the packaging a lot easier! Sure Mike can find some other use to put the "Stabbertron2000" to?? ;-)
You said this muscle wire is activated by heat? Does this unit not work very well if exposed to cold temperatures? Edit: Nevermind, I'm reminded of the contacts at the other end of the lever arm that let it know it has fully extended and made a ratchet. Must just continuously pass current through until it heats up enough to work, just may be a bit slower in the cold which is irrelevant.
So, there are of course videos on how to use these things on RUclips. Apparently one of these devices only lasts three days, and then you throw it away and get a new one out of the box. It seems quite wasteful given that the needle/cannula assembly looks replaceable, and the adhesive could easily be replaceable too. I suppose the other wet parts could get contaminated with bacteria or something, but they shouldn't be in contact with anything but your blood, which should be clean, right? The other thing I thought was a bit strange was that despite that these are single-use, you have to fill them with insulin yourself before use, but I guess that's because they'd be medicine, not just medical devices, if they came with the insulin already in them.
Built for low interference but I wonder if induction could cause the device to pump. Could it be possible to jam one in those 3-5 coil induction thingy's :) And change the intensity up and down to try interfere with it?
You guessed right. You shouldn't put air in it. Even if you do, there's a certain orientation you can put it in so it can push the air out, as if it were an ordinary syringe - the "air purge". After all, no matter what the syringe/pipe portion is always from factory-new state filled with air that needs to be pushed out by the insulin anyway.
Given how clever the rest of the mechanics are, I wouldn't be surprised if the small amount of motion between the spring starting to activate the piston and the cannula firing is just right to get the air out of the cannula. Other than that, there shouldn't be any air in the system unless you injected it along with the insulin - which you shouldn't do. Anyway, a tiny bit of air being very slowly injected under your skin is no drama. It's not like it's injecting a shedload directly into a vein.
This seems both fairly expensive and incredibly environmentally costly given that these things are 3 day lifespan devices. I bet only a fraction of them get recycled properly. Any thoughts about how one might make these last a bit longer (ignoring problems with infection etc. that might happen with aged needles.)
The recycling procedure is actually pretty straight forward and efficiënt. And also required by the distributor. As the pods are waterproof and have to be very small, it is very difficult to incorporate changeable batteries and long(er) term reliability. Also there are sterility issues, on every insulin pump system the canula (needle) needs to be changed every few days.
believe me, its well worth it when the alternative is generally at least 4 injections daily via a 26-32 gage needle. tbh, its not that bad putting it on and once its on, you generally dont even feel it
First2ner this is used by type ONE diabetics they didn't get TYPE ONE by lifestyle choices unlike a lot of type 2 diabetics. Type 1 diabetes is an autoimmune issue.
Thanks for your comment Michael! As a type 1 diabetic I meet lots of people who have no clue. The bad thing is that you can not in any way (yet?!) influence if you get this type of diabetes.
"infuriated with comments", why so? nobody knows everything and until you face the problem, you do or you don't research the problem. But still thanks for making it clear what is and what is not... and I wish you all well
First2ner apologies it was a bit of a hot headed comment, I'm quite new to it but it's a very difficult thing to control. Just gets a bit frustrating hearing people talk about getting it for eating too much sugar, but to be fair I didn't know a great deal about it until I was diagnosed. Wish they called it something else!
Not really sure what you are asking but. It has a conductive and no conductive segment, as it rotates it will either conduct or not conduct. The rotation is then detected as a change in state on the micro.
because muscle wire is smaller and more efficient in such a small package. not to mention the interference possibilities of electro magnetism that could interfere with the device or other devices
Hi Mike,
i was the one that sent it to you.
Thanks for the teardown!
it was really interesting
Greetings,
Joey
@@LawnMowersThingsThatMakeNoise Thanks Joey!
Imagine the design process; trying to achieve all the stringent objectives set down by the client. Quite ingenious design elements; some borrowed, some invented. Really, some unsung heroes are involved in this work.
One of the features you missed (or didn't mention) is the two-stage job it accomplishes in a fraction of a second.
The cannula moves forward with the metal needle protruding from a plastic sheath. Both are pushed under the skin, then the metal needle retracts leaving the flexible plastic sheath where it is in the skin.
So rather than a metal connection between the device and your skin, you have a flexible plastic tube.
Just like a peripheral venous catheter.
Thanks, this is just the one that I didn't figure out from the video)
Exactly what I wanted to point out :) I was asking myself why is that arm retracting back when it's holding the needle.
Is it painful when that happens ?
Excellent observation!
I had to like the video just for the cleverness of the muscle wire and mechanical parts. Nice one Mike. Thanks.
That's a really neat mechanism. Particularly the spring clutch onto the shaft and muscle wire ratchet. I guess that the risk of air injection is not a major risk due to the tiny amount being does at a time? Not so keen on the high power stabby bit. Particularly when it happens automatically at a relatively random time once attached to you.
You attach it to a fatty area... so, a tiny bit of air isn't a huge issue. :). It's actually rather bad if it ends up in a vein. The high power stabby happens when you attach it. A lot of the pumps have a little tube and a gun to apply the needle. On that kind... you take the needle out and it leaves a catheter. :)
I've not really seen a pump quite like this one though. Mind you... an ex of mine (type 1) had the insulin pumps... so I am not exactly an expert or anything! My ex's pump was the reusable kind where you replace the attachment piece. (Which connects via a tube to the unit). This unit seems disposable... weird!
Typically you'd need to inject a surprisingly large amount of air to cause a problem (e.g. 10ml or more in one go). That would probably be more than the chamber in this pump contains.
How could they not name this thing "PowerStabber 3000"? Much better than "Omnipod" IMO.
I think the piston moves a bit before the cannula deploys, which purges the air.
As soon as he said that it stabs you, i thought about the Toaster Manpage XKCD
Very cool. I like that little pump "engine". I've always wanted to play with some muscle wire.
I would have gone with a Briggs & Stratton 1/4 horse pull-start 4-stroke myself. Very reliable.
Practical Engineering
It would be really cool if you make a video about any medical deivce! Your channel is one of the best on youtube.
What a great video! Thanks to this video, next time I put an Omnipod on my arm, I will treat it with a lot more respect. My other thought is, after seeing the sophisticated engineering that went into this, and how compact the pieces are and the way they fit together, it’s hard to imagine that this is disposable every three days.
Excellent teardown, thank you! I just tore one down myself then came here to see what a professional had to say about it. My son is Type1 diabetic and just started using these.
- The stabbing action happens when you tell it to during setup, so it's not unexpected.
- Also, I think the biggest issue with recycling these is that they are considered a biohazard after being used for medical treatment, so there's no safe way to collect these en-mass and then reuse parts. Yeah pieces could be sterilized but I think they'd be better off just grinding them to dust after removing the batteries and then continue to recycle as normal.
Well I'm 58 years old, been an electronics engineer for half my career and an IT tech for the other half, and I've never heard of muscle wire! Every day is a school day as they say!
Thanks Mike, a lot of interesting little mechanical details in there, many of which would not be obvious solutions to what they are doing.
Thanks so much for doing this teardown. My youngest was diagnosed with Type 1 earlier this year and I've been considering getting her a pump but I'm struggling mightily with the potential consequences of a flawed unit.
The simplicity and elegance of the hardware design is encouraging. As someone with 20+ years in infosec and 4+ years tinkering in RF, the 'other half' of this system still has me a bit concerned. :/
I've had an insulin pump for almost the last 15 years. At first I had the Medtronic Minimed 508, now I have the Minimed Paradigm Veo 754. These things are a godsend and you would pretty much have to be an idiot to use the "old school" methods.
I also don't entirely buy the security concerns about these. You usually put around 250 units of insulin in these (less for a child). Even if the potential attacker manages to inject all of the insulin remotely it won't really kill you. Insulin is very slow acting (even the fast acting ones). You will certainly know that you have a low blood sugar before you would fall into a coma. And in that case you will do something about it. And you should always have a hypo kit near you in case you fall into a diabetic coma. And if you are at work/in school somebody should probably know how to use that hypo kit. If you are in public then an ambulance will help you as well.
Besides... The RF range of these things is pretty limited. So chances are that any attacker would have to do this in public which minimizes the possible damage that they could do.
jcims I've had diabetes since age of 4 and started using insulin pump at 18, used Medtronic's and Animas and experienced issues with both, Omnipod's have been one of greatest things for T1D over my past 27 years with the disease. Least painful insertion of any and best thing is it inserts itself, giving you appropriate angle of insertion with accuracy that takes away "human" error that can lead to potential hospitalizing situations.
I've had the Animas 2020 (twice) and I currently run the Animas Ping pump (yes, I love Animas pumps!!!) However, I just received a letter stating that Animas is no longer going to be making or selling insulin pumps (so now that my pump is almost out of warranty I have to look into getting a different pump and don't like the medtronics line (and there aren't too many more companies to choose from (please do your research before deciding anything). After doing MY research I am currently attempting to get the tubeless OMNIPOD. I wouldn't be a day without my insulin pump!!!
Thanks for the help. Didn't have time to watch the whole thing. Needed to open one to recover my reservoir and this helped.
Great video sir, especially for me as Type 1. I've just started using an Abbott freestyle Libra which is a type of wireless constant glucose monitor, I took the wireless sensor apart with a view to doing a tear down then realised I don't know a great deal! 🤔 thanks again
Nice to see some teardowns coming through again.
Mike does seem to have varied number of differing subjects, with a good balance of mech and elec.
Cheers Mikey baby :)
Some really interesting stuff going on. I like how the spring rotates the arm to stab with the needle then continues around to retract it.
It actually leaves the plastic cannula but it retracts the metal needle in the center after piercing the skin.
Nice! My friend wears one of these and I've always wanted to see how it works!
this muscle wire mechanism is amazing, thanks mike
I hope the communication protocol is secure.
Aye, hope they have decent crypto in these things these days. Barnaby Jack hacked another make of insulin pump and got it deliver what would be a lethal dose in 2011.
Not likely. Medical stuff is like swiss cheese when it comes to security.
Sadly standards haven't increased much since the Barnaby Jack talk. There's no regulatory requirement for proper security testing.
Protocol is hacked now.
I thought the break-off corner was going to be for decommissioning unsold out of date units so they didn't get onto the black market (til I saw the caption)
great teardown - medical stuff seems a bit different. it's got to be as idiot proof as consumer electronics if you're sending patients off with it, but totally reliable and well engineered.
the muscle memory motor also has another plus. it is incapable of squirting all of the insulin at once, the maximum rate even on errors is small enough that the user may be able to react and remove a malfunctioning or compromised device.
What is not apparent in this video is how the muscle-motor steps until the mechanism reaches the piston in the tank before the clutch-spring is released. This is how the pump ‘knows’ how much insulin is injected into the tank. The release-cam for the needle is attached to the outer axle, so the needle won’t release until the clutch engages. As mentioned in another comment, the metal-needle is inserted, and then retracts, only the outer plastic tube is embedded in the skin. This insertion takes only 1/200 of a second, and that is why there is a hefty spring on the needle-actuator.
Loved this video a year ago - just now talking to a coworker about how she is getting a new insulin pump...sure enough it's this omnipod. In the USA it costs 300 dollars...Here in Canada it costs 6300 dollars for the omni ecosystem plus 300/mo in pods. Crazy.
Type 1 diabetic who uses omni pods here and I have to say nice tear down of the thing but it’s not really an unexpected stab from the needle it goes in when you tell it to while you’re setting up the pod. And I can set it up and deliver insulin all from my phone thanks to a handy app called loop (loop needs to be made by yourself since it’s not in the AppStore but there are some online groups with instructions on how to make the app on Facebook im guessing)
Brilliant explanation with precise video , TY, I LUV IT
The break-off corner on the PCB is for disabling sound.
Two videos in such a quick time! Only recently found your channel but I have recently watched nearly your total back catalog. I wish I worked in an industry where I could send you doo-dads. You should make an electronic kit in some form for purchase, it would be a great way to support these (in a small way).
thermal image on the wire as its working - would make an interesting clock movement device
i'm a bit confused as how that muscle wire actually makes that piece of metal move because it looks like that movable part is in about middle of that wire and thus would not move when the wire shortens
Anyone notticed that once the canula was triggered, the actual "needle" that was inside, retracted back so only the soft plastic would remain inside the body?
Fantastic ... I just finished tearing one down myself, and was analyzing it's operation. I had about 80% right, but you filled in the critical 20% that puzzled me! thanks. BTW could you elaborate a bit on your setup to operate the muscle wire ? Thanks!
Amazing Video & Unreal Device. Keep up the great work. Nick.
13mW 433MHz frequency shift keying modulation according to the manual.
Interesting teardown but you were waving it around so much I couldn't see what you were trying to point at. I don't know if a lower zoom would be better, or just sticking the device down to the desk so you can't move it around .
agreed, it was a little bit motion sicky, and the focus was a little off sometimes.
still, mike got the point across pretty well and it was a lot of tiny little things so overall it's not bad I think.
Had the same issue when I tried to make videos on small components! It is really not easy to solve it.
I found that with my camera the only workable solution is to put it down on top of the table, preferentially on a dark cloth/paper as background to increase the contrast.
Anyone know what’s happening with the wiring? The white and yellow are going to a signal generator, what about the green??
Wow, lots of clever engineering here! I wonder how many years it took to refine it all
The break off pcb corner could be to hard "safe" the units? Ie, by breaking the power to the muscle wire driver, the capstains can't turn and fire the needle mech You don't want these units accidentally firing out there stabbers when being recycled if not used!!
Fascinating. Thanks Mike. Perhaps the filling is detected due to the encoder rotating as the shaft extends via the screw rotation?
You can't take the blue needle cover of before filling it. :) I use it, super easy & I love it!
Don't want to sound horribly critical here, Mike, as I know these vids take a lot of effort (which I'm not contributing myself, yet) but when you're shaking the things around under the zoom it's really tiring to watch. Will it work if you put them on the bench and poke at them instead?
I had no idea muscle wire existed. That's neat stuff!
I love medical tech like this, such clever and interesting designs.
Interesting that there's a video of a tour of the Omnipod factory showing how these are made in my related videos.
The needle would actually be removed after you have drawn up the insulin. The fill port would couple with the plastic part of the syringe.
Please try to hold the thing still when in macro. Having to pause to actually see what you're pointing at continuously is quite annoying.
Watching this on my Microsoft Surface Book that uses "muscle wire" to actuate the tablet release mechanism. Cool stuff.
Medical stuff is always interesting. This pump is an awesome construction wich combines many different techniques on small room. We have an actuator that converts electrical energy in temperature energy (is it the right term?) and from there to kinetic energy. The force is multiplied by a screw and gives the needet acuracy too.... This is cool!
An interesting question in my opinion is, how much energy is left in the batteries after the job is done?
The needle retracts leaving a filament and that's what stays in your body for insulin to travel into the body
Judging by how most devices of this size handle EM communication it said its probably using the 433 MHz band for wireless sensors, door alarms etc.
It beeps 2xs during full at 85 units then you continue to fill. The PDM tells you how much is left.
Will disabling the obnoxous alarm speaker with a push pin affect the function of the unit please
As I'm a type 1 diabetic I'm using those all day. Now I know even more about them, thanks!
I must say especially in the early days they were often (2 out of 10) doa. It's clearly not that easy to fit all the mechanical bits perfectly together in the factory...
The only thing that worries me using them is the fact that the canula has to be perfectly sterile when inserted. How do they take care of that? Is the whole unit sterilised?...
But I think they are designed very well. When there is a fault the unit detects it. Once I had a leaking battery in one of them. Not nice but the alarm went off like crazy (as it's always :-/)
What is the electrical connection? where do the white and yellow and green wires go? I found one in the beach
Very interesting device. Don't think I've ever seen mussel wire before.
impressive design. not having to have a conventional "Motor" must reduce costs, avoid having to have stepdown gears and make the packaging a lot easier! Sure Mike can find some other use to put the "Stabbertron2000" to?? ;-)
A small needle covers the canula until you push start on pdm. The needle retracts, leaving only the canula in me.
So the cannula remains under your skin not the needle?
You said this muscle wire is activated by heat? Does this unit not work very well if exposed to cold temperatures?
Edit: Nevermind, I'm reminded of the contacts at the other end of the lever arm that let it know it has fully extended and made a ratchet. Must just continuously pass current through until it heats up enough to work, just may be a bit slower in the cold which is irrelevant.
I am wondering if the beeping noise coming from the Pod at the end of treatment is a time specific buzzer that is independent of the Crontroller?
90% of your videos i find myself mentally screaming to move your hand away from the sharp, pointy or potentially dangerous objects xD
Could you please do the same thing with the tandem talon x2? I need to figure out how to take it apart. The motor is stuck.
Considering the tech, it's crazy those are disposable after 3 days.
great video! how did you remove the plastic protection? I tried a heat gun and I still had to force it off!
So, there are of course videos on how to use these things on RUclips. Apparently one of these devices only lasts three days, and then you throw it away and get a new one out of the box. It seems quite wasteful given that the needle/cannula assembly looks replaceable, and the adhesive could easily be replaceable too. I suppose the other wet parts could get contaminated with bacteria or something, but they shouldn't be in contact with anything but your blood, which should be clean, right? The other thing I thought was a bit strange was that despite that these are single-use, you have to fill them with insulin yourself before use, but I guess that's because they'd be medicine, not just medical devices, if they came with the insulin already in them.
Hi Mike, cool work! =) Do you know the engine's brand producer? It's a muscle wire by?
very neat! thank you for sharing!
Wow. I never heard of Muscle wire before, but it looks very interesting. By the way, what's the yellow fluid? Highlighter soup?
Mike's been overdoing the vitamin B?
Great video. Very informative
Built for low interference but I wonder if induction could cause the device to pump.
Could it be possible to jam one in those 3-5 coil induction thingy's :) And change the intensity up and down to try interfere with it?
How does it deal with air in the tank? Or are you not supposed to get it in there in the first place?
You guessed right. You shouldn't put air in it. Even if you do, there's a certain orientation you can put it in so it can push the air out, as if it were an ordinary syringe - the "air purge". After all, no matter what the syringe/pipe portion is always from factory-new state filled with air that needs to be pushed out by the insulin anyway.
The little amount of air that will get it wont hurt but i do wonder how the system detects an occlusion.
Do R/C!
It's generally advised not to put air in the blood stream, lol.
This is subcutaneous and infuses the insulin into the fat, not the blood stream, as an intravenous infusion would that would be placed in a vein.
Given how clever the rest of the mechanics are, I wouldn't be surprised if the small amount of motion between the spring starting to activate the piston and the cannula firing is just right to get the air out of the cannula. Other than that, there shouldn't be any air in the system unless you injected it along with the insulin - which you shouldn't do.
Anyway, a tiny bit of air being very slowly injected under your skin is no drama. It's not like it's injecting a shedload directly into a vein.
This seems both fairly expensive and incredibly environmentally costly given that these things are 3 day lifespan devices. I bet only a fraction of them get recycled properly. Any thoughts about how one might make these last a bit longer (ignoring problems with infection etc. that might happen with aged needles.)
The recycling procedure is actually pretty straight forward and efficiënt. And also required by the distributor. As the pods are waterproof and have to be very small, it is very difficult to incorporate changeable batteries and long(er) term reliability. Also there are sterility issues, on every insulin pump system the canula (needle) needs to be changed every few days.
So is the needle in between the canula
Very good work, thank you
I needed to see what makes that clicking noise.
Hey mike! I am trying to take one of these apart myself and I would really like to know how you got the white casing off so cleanly?
I have the same question. Did you ever find a way to get it open cleanly?
It would be nice it it one day could be possible to constantly messure the sugar level and inject automatic. Then it could be build inside the body.
Great video! anywhere to buy a muscle wire from?
Many thanks for sharing your knowledge
What metal is used for the circuit board?
do a teardown video about the aeg cordless brushless brad nail gun.
Get the Slo-Mo guys to document the stabbing action. It is doing a couple of clever things all in sequence.
were did you get the omnipod
"may have broken something in the process" you activated it before filling it lol. cool video though, I wear these everyday.
That's the frequency as per the usa fcc
Ah yes, one of those Robo-Stabby-Poker 6000 (TM) things. You go ahead and keep it.
Very clever device.
Blood Sugar Test Magic?
Terrifying. You'd have to pay me,, or I'd have to be ill to put that on my skin.
believe me, its well worth it when the alternative is generally at least 4 injections daily via a 26-32 gage needle. tbh, its not that bad putting it on and once its on, you generally dont even feel it
New microphone?
Oh hell no, I am staying away from sugar, I don't ever want that thing on me
First2ner this is used by type ONE diabetics they didn't get TYPE ONE by lifestyle choices unlike a lot of type 2 diabetics. Type 1 diabetes is an autoimmune issue.
Thanks for your comment Michael!
As a type 1 diabetic I meet lots of people who have no clue. The bad thing is that you can not in any way (yet?!) influence if you get this type of diabetes.
Maxi Neko I'm type 1 too and infuriated with comments like this! No problem!
"infuriated with comments", why so? nobody knows everything and until you face the problem, you do or you don't research the problem. But still thanks for making it clear what is and what is not... and I wish you all well
First2ner apologies it was a bit of a hot headed comment, I'm quite new to it but it's a very difficult thing to control. Just gets a bit frustrating hearing people talk about getting it for eating too much sugar, but to be fair I didn't know a great deal about it until I was diagnosed. Wish they called it something else!
amazing
What is sensing the encoder magnet?
Not really sure what you are asking but. It has a conductive and no conductive segment, as it rotates it will either conduct or not conduct. The rotation is then detected as a change in state on the micro.
some cool stuf !
I see a "Micro Cocktail" machine as the next project, for people who doesn't drink a lot (-:
They should have called it the 'nurse ratchet.'
very shaky video. Hard to see and follow visually
I wounder why they don't use this in clocks.
It's thermal so it takes a decent amount of power. For a mains powered clock maybe
ever seen a pendulum clock?
So, why don't they use a clock mechanism (i.e. driven by an electromagnet) in insulin pumps?
because muscle wire is smaller and more efficient in such a small package. not to mention the interference possibilities of electro magnetism that could interfere with the device or other devices
It seems a bit primitive... but it works for me!😌
I have that I just opened mine
i sent it in. got it from my grandpa after he died from AIDS.
P.S. don't forget to wear gloves
I believe the units were unused as he deployed the needles on both.
They where unused. i sent them in.
mikeissweet
Crass comment.
Weird. That's on my body right now.
Josh Lee lol same
PLS wide angle
But nice closeups