5 ms·

There's a reason I have a Rod of Asclepius and "DO NOT MRI" tattooed on my wrist. Apparently it's quite possible to go through an MRI with implant intact, so lo

There's a reason I have a Rod of Asclepius and "DO NOT MRI" tattooed on my wrist. Apparently it's quite possible to go through an MRI with implant intact, so long as the techs know about it. The inventor of these implants' advice about MRIs can be found here: http://www.stevehaworth.com/wordpress/index.php/welcome-from-steve-haworth/magnetic-faq http://www.stevehaworth.com/wordpress/index.php/welcome-from...

jonnathanson 15y ago
That is good to know. Thank you for the clarification. I'm glad the inventor took this into consideration.
jpdoctor 15y ago
> There's a reason I have a Rod of Asclepius and "DO NOT MRI" tattooed on my wrist. You realize there are other large magnets in the world besides those for MRIs?
- AkThhhpppt 15y ago
  Yes, but how many large magnetic fields does one gets stuck into while unconscious that _aren't_ MRIs? Besides, I've been exposed to serious magnets; the inverse cube law is my friend. Plus, even when I did come close to a strong magnet, all that happened was my implant flipped ends. In my finger, yes, but it wasn't painful (my implant is a cylinder, about as tall as it is wide; a disc magnet would have been much worse).
  - jpdoctor 15y ago
    > Yes, but how many large magnetic fields does one gets stuck into while unconscious that _aren't_ MRIs? If by "unconscious" you mean asleep, not many. If by "unconscious" you mean unaware, plenty. Try walking past these in a lab: http://www.youtube.com/watch?v=J2PDAnKEu9M http://www.youtube.com/watch?v=J2PDAnKEu9M FYI: Neodymium magnet strength is of order 1T, same as MRI.
    - AkThhhpppt 15y ago
      See where I mentioned the implant "rolling over"? That was caused by someone waving a stack of over 20 of these type of neodyms (http://www.magnets2buy.com/acatalog/neodymium-discs.html http://www.magnets2buy.com/acatalog/neodymium-discs.html) within an inch of my finger. Those are so powerful that splitting a stack of 8 and letting them re-attract rejoins the stack with such force it smashes the magnets that make contact. So while I'm sure coming close to one of those would _hurt_, I don't think I'd either end up stuck to the magnet or having the implant dragged out of me. The implant is powerful for its size, but its size is _tiny_ (half a grain of rice is a good comparison). It's not going to be as strongly attracted as that.
- VMG 15y ago
  What do you have in mind? I can only come up with particle accelerators, nuclear fusion reactors and special cranes on junkyards..
  - windsurfer 15y ago
    High voltage transformers, demagnetizers (used in workshops all over the place), and large electric motors all come to mind.
    - xyzzyz 15y ago
      They're rarely as strong as MRI magnets. My sister, who works as MRI technician, have seen MRI pulling with a blazing speed whole wheelchairs or heavy steel oxygen canisters from many meters away.
    - AkThhhpppt 15y ago
      You can feel transformers from a (comparatively) massive distance away: I can feel a 230-to-12V transformer from 5 to 10cm, which is generally bigger than the transformer is. So you'd know to steer clear. I mean, IAmDann said here, http://www.reddit.com/r/IAmA/comments/g7lom/iama_24_year_old_with_a_magnet_implanted_in_my/c1li0ec http://www.reddit.com/r/IAmA/comments/g7lom/iama_24_year_old... that he can feel subway power transformers while walking down the street. Demagnetizers... isn't the whole point to enclose the field? I'd also expect a warning sign or two, or for you to pay attention and know it's there. This is one of those "make your decision, and then live with it" things, and part of "living with it" is being aware of these things (and that acquaintances with more humour than sense might try to hand you magnets you can lift tables with). Large electric motors... Dunno, have no experience of them yet.
      - eridius 15y ago
        I once broke my finger handling magnets from a really old hard drive. I don't want to think about what would have happened if I had magnets implanted in my fingers.
      - kens 15y ago
CapitalistCartr 15y ago
I'd like to contact you regarding how you went about getting your implant. My email is in my profile.
- AkThhhpppt 15y ago
  I'm sure it is, but apparently I can't see it, through either incompetence or measly karma. The short-form of my implant tale is here: http://discuss.biohack.me/discussion/comment/862#Comment_862 http://discuss.biohack.me/discussion/comment/862#Comment_862
- aeontech 15y ago
  The emails in profiles are not visible to other users. This is a UI issue here that's bitten everyone.
  - CapitalistCartr 15y ago
    Well now, isn't that something I should have checked. Capitalist.Carter@gmail.com

jonnathanson 15y ago

That is good to know. Thank you for the clarification. I'm glad the inventor took this into consideration.

jpdoctor 15y ago

> There's a reason I have a Rod of Asclepius and "DO NOT MRI" tattooed on my wrist. You realize there are other large magnets in the world besides those for MRIs?

AkThhhpppt 15y ago
Yes, but how many large magnetic fields does one gets stuck into while unconscious that _aren't_ MRIs? Besides, I've been exposed to serious magnets; the inverse cube law is my friend. Plus, even when I did come close to a strong magnet, all that happened was my implant flipped ends. In my finger, yes, but it wasn't painful (my implant is a cylinder, about as tall as it is wide; a disc magnet would have been much worse).
- jpdoctor 15y ago
  > Yes, but how many large magnetic fields does one gets stuck into while unconscious that _aren't_ MRIs? If by "unconscious" you mean asleep, not many. If by "unconscious" you mean unaware, plenty. Try walking past these in a lab: http://www.youtube.com/watch?v=J2PDAnKEu9M http://www.youtube.com/watch?v=J2PDAnKEu9M FYI: Neodymium magnet strength is of order 1T, same as MRI.
  - AkThhhpppt 15y ago
    See where I mentioned the implant "rolling over"? That was caused by someone waving a stack of over 20 of these type of neodyms (http://www.magnets2buy.com/acatalog/neodymium-discs.html http://www.magnets2buy.com/acatalog/neodymium-discs.html) within an inch of my finger. Those are so powerful that splitting a stack of 8 and letting them re-attract rejoins the stack with such force it smashes the magnets that make contact. So while I'm sure coming close to one of those would _hurt_, I don't think I'd either end up stuck to the magnet or having the implant dragged out of me. The implant is powerful for its size, but its size is _tiny_ (half a grain of rice is a good comparison). It's not going to be as strongly attracted as that.
VMG 15y ago
What do you have in mind? I can only come up with particle accelerators, nuclear fusion reactors and special cranes on junkyards..
- windsurfer 15y ago
  High voltage transformers, demagnetizers (used in workshops all over the place), and large electric motors all come to mind.
  - xyzzyz 15y ago
    They're rarely as strong as MRI magnets. My sister, who works as MRI technician, have seen MRI pulling with a blazing speed whole wheelchairs or heavy steel oxygen canisters from many meters away.
  - AkThhhpppt 15y ago
    You can feel transformers from a (comparatively) massive distance away: I can feel a 230-to-12V transformer from 5 to 10cm, which is generally bigger than the transformer is. So you'd know to steer clear. I mean, IAmDann said here, http://www.reddit.com/r/IAmA/comments/g7lom/iama_24_year_old_with_a_magnet_implanted_in_my/c1li0ec http://www.reddit.com/r/IAmA/comments/g7lom/iama_24_year_old... that he can feel subway power transformers while walking down the street. Demagnetizers... isn't the whole point to enclose the field? I'd also expect a warning sign or two, or for you to pay attention and know it's there. This is one of those "make your decision, and then live with it" things, and part of "living with it" is being aware of these things (and that acquaintances with more humour than sense might try to hand you magnets you can lift tables with). Large electric motors... Dunno, have no experience of them yet.
    - eridius 15y ago
      I once broke my finger handling magnets from a really old hard drive. I don't want to think about what would have happened if I had magnets implanted in my fingers.
    - kens 15y ago

CapitalistCartr 15y ago

I'd like to contact you regarding how you went about getting your implant. My email is in my profile.

AkThhhpppt 15y ago
I'm sure it is, but apparently I can't see it, through either incompetence or measly karma. The short-form of my implant tale is here: http://discuss.biohack.me/discussion/comment/862#Comment_862 http://discuss.biohack.me/discussion/comment/862#Comment_862
aeontech 15y ago
The emails in profiles are not visible to other users. This is a UI issue here that's bitten everyone.
- CapitalistCartr 15y ago
  Well now, isn't that something I should have checked. Capitalist.Carter@gmail.com