Can´t tell if my device is working


  #1  
Old 07-06-15, 10:40 AM
E
Member
Thread Starter
Join Date: Jul 2015
Posts: 8
Upvotes: 0
Received 0 Upvotes on 0 Posts
Question Can´t tell if my device is working

Hello
¿Anyone knows about this?...
Due to surgery I need to be using an orthopaedic device that works by generating a magnetic field. This device is from Europe and the labes says:
"INPUT AC 230 V +/- 5%, 50/60Hz, max 5VA"
I brought it to México where the voltage is 110-127 (monophasic) and am using it with a 200 watt transformer with a 125V input and a 220 V output. All the connections are with 2 "legs" including the adapters.
Apparently, it works (turns on and makes the noises) but I´m not seeing results.
Maybe the voltage at my house HAS to be at least 125 V?
I´d really appreciate an answer
 
  #2  
Old 07-06-15, 10:55 AM
P
Temporarily Suspended
Join Date: Jul 2008
Location: NY
Posts: 10,265
Upvotes: 0
Received 0 Upvotes on 0 Posts
Who is the manufacturer of the device & have you contacted them?
 
  #3  
Old 07-06-15, 10:57 AM
I
Forum Topic Moderator
Join Date: Feb 2005
Location: Near Lansing, Michigan
Posts: 9,785
Upvotes: 0
Received 45 Upvotes on 43 Posts
Sounds much more like the device is some sort of scam. Unless it is an MRI scanner I really doubt an electromagnet has legitimate medical use.
 
  #4  
Old 07-06-15, 11:33 AM
E
Member
Thread Starter
Join Date: Jul 2015
Posts: 8
Upvotes: 0
Received 0 Upvotes on 0 Posts
The system is called Fitbone, manufactured by Witenstein. It consists of a telescipic rod/nail that is inside the bone (tibia in my case) and it is lengthened by the mechanism I mentioned thus making the bone longer (the bone is cut during surgery). Yeah it´s pretty interesting. I´m obviouly telling everything to the doctor, he told me to get the transformer but I´m not sure if it´s working.
I was wondering that maybe I could plug the device directly into the wall (without the transformer) and see if it just doesn´t turn on but I don´t know if it could damage it.

It´s worth a look, really cutting-edge tech
FITBONE® ? Fully implantable intramedullary lengthening nail
 
  #5  
Old 07-06-15, 11:37 AM
E
Member
Thread Starter
Join Date: Jul 2015
Posts: 8
Upvotes: 0
Received 0 Upvotes on 0 Posts
Unfortunately they have not replied
 
  #6  
Old 07-06-15, 12:10 PM
I
Forum Topic Moderator
Join Date: Feb 2005
Location: Near Lansing, Michigan
Posts: 9,785
Upvotes: 0
Received 45 Upvotes on 43 Posts
The transformer you have is the correct one for the machine, so I don't think it's a problem with the power supply. The label of 125V refers to a class of voltages which is generally +/- 10%. The 200W size is more than large enough for a 5VA device.
 
  #7  
Old 07-06-15, 01:33 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 65,675
Received 4,100 Upvotes on 3,682 Posts
Unfortunately they don't give you a way to test the system. It appears to be magnetic. Try holding a piece of steel next to the transmitter and see if you feel any kind of vibration.

Name:  fb.JPG
Views: 317
Size:  30.8 KB
 
  #8  
Old 07-06-15, 01:43 PM
P
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 28,145
Received 2,265 Upvotes on 2,018 Posts
Is it magnetic or is it sending electric current to a receiving coil embedded in the body? Sort of like cordless Qi charging of cell phones.
 
  #9  
Old 07-06-15, 01:51 PM
ray2047's Avatar
Member
Join Date: Mar 2006
Location: USA
Posts: 29,711
Upvotes: 0
Received 15 Upvotes on 13 Posts
Unfortunately they have not replied
Can't the doctor supervising your recovery help?
 

Last edited by ray2047; 07-06-15 at 02:47 PM.
  #10  
Old 07-06-15, 02:33 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 65,675
Received 4,100 Upvotes on 3,682 Posts
You're right..... could be an induction system. There may be a slight residual magnetic field.

You could try putting the transmitter next to an AM radio. You should hear a hum when you bring the antenna near the radio.
 
  #11  
Old 07-06-15, 04:03 PM
E
Member
Thread Starter
Join Date: Jul 2015
Posts: 8
Upvotes: 0
Received 0 Upvotes on 0 Posts
Yes he is helping and everything seems to be right, I just got a little nervous and wanted to be sure
 
  #12  
Old 07-06-15, 04:24 PM
E
Member
Thread Starter
Join Date: Jul 2015
Posts: 8
Upvotes: 0
Received 0 Upvotes on 0 Posts
I´m really thankfull guys. I just wanted to be completely sure that everything is working, I am also telling everything to the doc and he is not worried. Will perform the tests you mentioned though, out of curiosity. (Already tested the voltage of the transformer)

...Yeah the reciever is inside the skin and there is a noise and a light every 10 seconds, counting up to 9 on the screen. Supposedly, the nail lengthens 1/3 of a mm in that process (this is done 3 times a day). I honestly have no idea of the science behind.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: