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Deactivated Bone Growth Stimulator Answered

I have a CMF bone growth stimulator that no longer works. These devices are set to die after so many uses. Does anyone have any ideas on how to reactivate these units? Or, hacking these things for another purpose?

Discussions

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Colleen79
Colleen79

19 days ago

Hello I have an Orthofix Cervicalstim 5505 and am getting an E115 code. Does anyone know how to reset this? Any help is greatly appreciated.

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martin jacobs
martin jacobs

7 months ago

THERE IS HOPE..

I was prescribed a bone healing stimulator by my orthopedic DR. who said and I quote "these things cost a fortune, may or may not even work, but what do you have to lose?"

After doing a bit of research, It became obvious this device is likely filling a scam industry niche, fueled by industry sales greed, patient ignorance, and the current screwed up state of the medi-political system. The manufacturers designed the devices to self destruct after 270 days whether or not they are used - only logical reason is to insure a dead resale value as they do NOTHING DANGEROUS.

These devices should obviously be rentable as they simply create a SAFE and repeating low level magnetic field based on some "questionable and secret proprietary research", but due to the FDA's categorizing them as "one time use" devices, these companies (like DJO) are able to sell these flimsy little boxes worth $40 in parts for more than $4000. They are banking on patients with paid off deductibles who think they are getting it for free when ALL THE REST OF US are actually paying for these overpriced probably useless crap boxes in the form of higher premiums. If you ever wonder why medical costs are so high, look no further than the bone stimulator market.

So, just to stick it to these bozos, I bought 2 of them used off facebook marketplace. The poor people selling these things actually thought there was an aftermarket since they knew they were worth THOUSANDS! The purchase process was easy - I simply explained to each of them that the smiley face after a 2 second button hold meant the device had hit the 270 day suicide limit and is essentially non functional forever. at that point they gave both gave the device to me for free.

Following others here on the site, I carefully disconnected the small nickel sized 3.5 volt battery on the small circuit board inside the case. It's not hard at all. you just need a small flathead, and gently work it away from the thin metal connectors until it breaks free.

in both units, after the battery disconnect, I was greeted by a sand-dial icon after a 2 second button hold, then the numbers appear, and they are different, both of them. The numbers don't seem to really matter at this point. The device then begins the 30 minute count down and based on my measurements of the magnetic field they both are doing exactly the same thing, basically a low frequency, low energy sine wav with some other fun little peak variations thrown in.

So far, I'm a week in to this experiment, and they both are still working every 24 hours, so i'm just using both of them daily to double up on treatments. One in the afternoon, the other just before bed. What the heck right?

So, the bad news is I have no idea how long they will continue to operate yet I'm hopeful they will give me a few weeks or months of service.

The good news? I have 2 working units, and I didn't contribute one penny to a flawed and greedy industry that rather than do what's best for the patient, chooses to do whats best for their profits and 6 figure sales salaries. When these units stop, I'll just buy grab a few more used and keep rolling.

PS.. Think of it this way. My iphone cost 250 dollars and is a miraculous handheld hi res computer capable of hundreds of useful tasks. This DJO bone stimulator basically shows 2 numbers on a low res cheap display, then a smiley face, and a beep or 2, while sending some low amp current to a cheap magnet and they are selling it for 4K. totally unreal.

PS: if anyone is interested, friends and I are currently developing a clone device based on cheap arduino diy parts designed to duplicate the signal patterns exactly and retrofit to the elctromag attachment on the dead unit. If there's interest we'll make them available to anyone who is interested for a fraction of what they'd be forced to pay for this low end tech with a built in lifespan of 270 days.

Cheers,
Martin





You definitely want this battery out of the unit. I tried reconnecting it at first and that seemed to confuse the unit.

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lori6
lori6

Reply 4 weeks ago

One more thing Martin. I turn it on it displays
"20 3" and gives a constant high pitched sound . The numbers don't change after a couple minutes, it stays the same. If I press the button again, it displays a triangle with a circle around it and turns off.

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lori6
lori6

Reply 4 weeks ago

I had an Orthofix BGS model 2505 selling on Ebay for $25.00 until a nice person just informed me of the 270 self destruct. Let me know if anyone wants it since it's almost worthless.

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undiesided
undiesided

8 months ago

i have one of these it is 4 or 5 years old...disconnected the internal battery...still wont work...anyone want it, i give up

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cearizmendi
cearizmendi

Reply 2 months ago

How did the Arduino project end? Any luck there?

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cearizmendi
cearizmendi

Reply 2 months ago

I am interested. Willing to give it a try for my daughter.. DO you still have it?

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JunartS
JunartS

4 months ago

Pin 1 in the picture is ground.
I jumped 1 and 5 together using a hard drive jumper.

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KimberlyS190
KimberlyS190

8 months ago

I bought a new battery. It now comes on, but says no remaining treatments, then turns off, any Ideas?

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cdrdddowning
cdrdddowning

1 year ago

OK here is my hack. Open the control unit. Remove the control circuit board. Cut and strip back 1" the battery leads and the wire the leads to the field coil and cross wire them so that you have the following on the black battery lead: black, orange, grey, lt green and yellow. To the red battery lead: brown, white, blue, dark green and red. The magnetic field coil (the circle thing on your back) will emit a low level magnetic field all around. Make sure connections are solid and reassemble the case. Manually time the treatments to what you are supposed to do, and remove the battery, making sure is fresh with a tester, as you will not have any indicators on the unit anymore. A magnet that you can buy at a tool store will emit a stronger magnetic field. I did this by trial and error so someone might have a better wiring sequence, but this one works. Enjoy!

IMG_3975[1].JPG
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MichelleH333
MichelleH333

Reply 8 months ago

My husband wired it up just as you showed but during the treatment time the part od device holding battery gets pretty hot. Little worried about it. Any clues to why?

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Michael779
Michael779

1 year ago

Hi, I have exogen 4000.

Do you know if it has any limitation of available treatments?

Any idea how to extend or reset the device?

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joelr7
joelr7

1 year ago

After some further investigation I discovered that the main board has a NXP P87C554SBAA 8-bit micro-controller on it, which does include non-volatile EPROM. That is most certainly the source of the memory persistence.
I looked up the data sheet for the microcontroller, but its very unlikely that someone could figure out how to communicate with it to reset it. The program running on the controller and the device used to reset it would be intellectual property Donjoy (the devices maker). I would love to get my hands on that device and snoop the reset communication, but I dont see that happening.
I'm leaning toward this thing being truely bricked.

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joelr7
joelr7

Reply 1 year ago

I just checked through the datasheet for the microcontroller again and it looks like there is a reset procedure for the controller which could be accomplished with some jumper wires. However, I believe this would reset the controller completely. Like wipe the program. Which would make the thing completely worthless. But maybe then service would reset it for you?

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joelr7
joelr7

Reply 1 year ago

I tried the magnetic field app on my phone and bridging pins 1 and 2 does indeed induce a magnetic field. However probing the signal going directly to the coil (white and grey wires) shows that it is not functioning according to specification. The manual says that it produces a DC wave and an AC wave with a period at 76.6Hz (13ms).

Hooked up to the O-scope, shows that the magnetic feild (via the voltage) produced is ~545ms long and about every 2 seconds.

So, I'm not really sure what its doing, but its not producing the signal for bone growth therapy.

Capture.PNGIMG_20190227_175325921.jpg
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joelr7
joelr7

1 year ago

I just gave the reset procedure others descrived a try and it didn't change anything.
I actually unsoldered the coin cell battery completely.

How long did people have to wait before trying it again?

Mine timed out, as in I got past the 270 day mark. It kind of sounds like if you catch it before that removing the battery will keep it from continuing to track days gone by.

When I press and hold the button it turns on then shows the smilie face and turns back off. When I bridge pins 1 and 2, like JunartS described, the screen displays RX Complete and then turns off.

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Tinterr
Tinterr

1 year ago

Since mine gives 2 numbers then a smiley face does that mean 8ts not working?

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joelr7
joelr7

Reply 1 year ago

The smilie face means you have satisfied the current treatment regimen.
You only use it once a day while it is active. The smilie face lets you know you already used it that day. After the alloted time has passed (270 days in my case) the smilie lets me know its over. Basically that means your locked out of triggering a treatment cycle.
When I bridge pins 1 and 2 like JunartS described it shows RX Complete on the screen.

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Zay24
Zay24

Reply 1 year ago

Hey mines gives a smiley face too, is there any way that we can sell them online ?

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robio5150
robio5150

1 year ago

Just did the memory battery hack to our CMF OL1000SC unit. Gently pried the bottom "neg" battery spot weld loose and seperated it from the battery. Just left the battery floating connected to top prongs. Put it all back together and pressed the start button..nothing. Just usage counter display. But then.... Press and HOLD the start button, got the "beep" the counter display and VOILA the session began with sanddail "wait" icon then the session countdown clock start doing it's thing.
Glad I could be a part of safely hacking this medical-device, what a scam! Seriosly, the medical device fleecing of our country is sickening.

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JunartS
JunartS

1 year ago

Bought this at a good will. Makes for a great back brace un powered. Using a multimeter is was able to cycle the unit WITHOUT the audible beep every 4 seconds by shorting pins 1 and 2. The initial phase of the powercyle starts with a 300 microgausse pulse for approximately 300 miliseconds and then remains at 80 microgauss till the end of the cycle. Then the display reads Treatment Complete at end of the cycle and then repeats. If you keep pin 1 and 2 shorted you can maintain the electromagnetic pulse at 300 microgauss/4seconds with a 80 microgauss baseline for as long as the pins are shorted.

Shorting pins 5 and 1 appear to act just like the button at the front of the unit and does have the audible beep.

Hope this helps.

On a tangent:
This device could be useful in getting rid of those Morgellons everyone keeps talking about. I heard these creatures lay eggs in your pores and then the larvae hatch and produce electro-conductive microfibers in your body. Waving a magnet destroys them or renders them inert because the moving magnet produces eddy currents in the microfibers that cause them to heat up enough to cause the fibers and the organism to explode. Just kidding.

Frankly waving a standard magnet over the affected area has the same effect with more Gauss strength (over 1000+ microgauss).

donjoy pinout.jpg
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MikeW427
MikeW427

1 year ago

Hello, I have followed your guidance. Now the only thing it will do is put out a loud continuous beep with a yellow screen that says contact customer service. Very frustrating. Can you or someone anyone help me through this.!? Thank you in advance.!!!

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MikeW427
MikeW427

Reply 1 year ago

I stated, followed your guidance however realized I never clarified who you were. You would be JonB102

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SarahD130
SarahD130

2 years ago

I reactivated one. Since they wanted $1600 without insurance and $800 with insurance I bought 2 different ones on ebay and tried. The orthofix model, once the round battery was removed, just kept beeping. It wanted a program installed. I used the Spinal logic brand instead. First get a magnetic field app on your phone to test it. It'll jump in the hundreds if it's working. The Spinalogic has a curly wire going to the control unit. I removed the control unit and cut all the wires. I soldered a 9 volt battery adapter onto the red and black wires. Those are the only 2 wires you need to worry about. The rest are for programming. Now put a battery on the connector and test with the magnetic field sensor you downloaded onto your phone. If it says 40-60 try soldering the wires reversed. Otherwise it should jump to 300 or so. You'll have to take the battery off when not using it. In my opinion magnetic fields like these cause cancer but my doctor wants me to wear one so my bone fusion heals. Talk to your doctor about it.

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TrentK9
TrentK9

3 years ago

I just did this 12/6/16 - Simply removed all 4 screws opened unit. The battery is in fact connected to two different metal pieces, I just lifted up on it with a screw driver (under the battery but NOT under the metal piece connecting to the main board. It just popped off with a little pressure. It did not FULLY reset for me though, at first I could not use it at all. Now I have 160 uses left out of 238. I believe disconnecting the battery simply reset the "9 month then dead issue", but did not fully reset the previous uses. Thank OP for this thread it saved me a headache and made me some money, I picked up a size 2 and a size 3 OL1000 "DONJOY BRAND" for $7 at a garage sale...Look out Ebay hehehehe

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MaryB400
MaryB400

Reply 2 years ago

I did the same, it gave the usage count and then a smiley face but does not start a session. Does your actually work?

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BryantP9
BryantP9

Reply 2 years ago

is yours still working after the hack?

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Rml1121
Rml1121

Reply 2 years ago

Hey Trent, I followed your instructions and my numbers did reset (not the full amount) but when I push to actually activate it, the 30 min countdown doesn't start. Are you able to activate yours and receive a treatment?

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abmorse1
abmorse1

Reply 3 years ago

Hey Trent - I picked up a Donjoy OL1000 too, but I'm not having luck with the reset. It sounds like you didn't have success at first; what finally got it to work?

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JonB102
JonB102

4 years ago

if you remove the four screws on the control unit, you will see a battery spot welded into a holder. That battery holds the clock data and counters. I broke the bottom weld loose with a thin blade. Once disconnected, it forgot that 270 days had gone by. Seems to be working now. The timer is counting down.

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forrie
forrie

Reply 4 years ago

We may have different units. However, I opened mine and attached a couple of photos here, where you can see the battery connector; as well, the CMOS/disc battery to the left. From your description, it's not clear this applies here. Could you comment? Thanks!

IMG_4890.JPGIMG_4891.JPG
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JamesH327
JamesH327

Reply 4 years ago

All I did was separate the battery from it's hosting using a small screw driver. Reset the unit just fine. Now it may expire in 270 but it will be sold long before that.

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MaryB400
MaryB400

Reply 2 years ago

We remove the battery and only shows the previous information of the times used and left and then a smiley face. What else should we do?

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JonB102
JonB102

Reply 4 years ago

That is how mine looks. The battery with "129E" on it is the culprit.

With very sharp cutters, if you can clip it free, you will reset the time clock to Day 1. As long as it stays disconnected, it doesn't run up the clock. It does still count the number of times used, though.

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DonKnock
DonKnock

Reply 2 years ago

I disconnected this battery but now the unit won’t go into the treatment mode. It turns on and says the count and beeps then shuts back off.

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MaryB400
MaryB400

Reply 2 years ago

We removed the battery but still does not work, just gives the count 16/271 then smiley face. It does not go into timer countdown. What do we do now?

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forrie
forrie

Reply 4 years ago

So if we disconnect this battery and it can't track the time, but can still count number of times used, it sounds like there may still be a problem using the unit beyond X uses. This suggests it has NVRAM somewhere that is holding this figure.

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JonB102
JonB102

Reply 4 years ago

yes, there must be an NVRAM somewhere. What I don't know is if it will reset at 127 or quit. Only time will tell on that.

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JonB102
JonB102

Reply 4 years ago

174, not 127

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JonB102
JonB102

Reply 4 years ago

174, not 127

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p51aviator
p51aviator

Reply 3 years ago

Thanks for posting this! Rather than cutting anything, I separated the battery from the board with a soldering iron and the pin connected to the negative side of the battery. I soldered it back in place a minute later and it worked perfectly.

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BrittanyN11
BrittanyN11

Reply 4 years ago

Hi there-- I have one of these and am trying to follow your instructions. I see two screws at the bottom of the control unit where the cord comes in. I've unscrewed those two but CANNOT seem to get the control unit open. Where are the other two screws? Thanks!

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JonB102
JonB102

Reply 4 years ago

The two top screws are under the sticky label. You can either remove it (I did) or just cut holes to access the screw heads. Use finger pressure to locate the indentations.

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forrie
forrie

Reply 4 years ago

Curious if this is the same brand I posted above. Would you be able to post a photo?

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JonB102
JonB102

Reply 4 years ago

Yes, CMF.

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JonB102
JonB102

Reply 4 years ago

I already assembled and didn't think to take pictures. You can't miss the battery holder (CR2035). Use a pair of metal snips or similar to cut out the time clock battery. Don't go "he-man" on it, though.

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forrie
forrie

Reply 4 years ago

Just seeing this now. Thank you for replying, I will take a screwdriver to this and see if I can find this. Will post after.

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wmlaveck
wmlaveck

Reply 4 years ago

I have already trashed it, but this is good to know in the future. Thanks

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DebbieC151
DebbieC151

2 years ago

I have two of these for your femur and wondering what to do with them. Has anyone figured it out yet ?