3 ms·

Given how well-trodden putting hardware in humans is, I'm surprised this wouldn't be a <60 minute surgery to affix the magnet to your bone. Then it wouldn't loo

by Spivak 2y ago

Given how well-trodden putting hardware in humans is, I'm surprised this wouldn't be a <60 minute surgery to affix the magnet to your bone. Then it wouldn't look so weird pulling on your skin. Then again, the non-invasive version is wearing a magnetic ring, $1.34 on Aliexpress.

ramses0 2y ago
Similarly: supposedly superglue a magnet to your fingernail.
- carpdiem 2y ago
  I tried this once. There was no convincing effect for being able to "detect by feel" AC currents, but you could definitely notice magnetic materials. Maybe the most fun, though, was just playing around and "picking up" paperclips and tiny screws by flicking my finger at them.
kstrauser 2y ago
Having worked in orthopedics quite a bit, and hanging out with my wife who's a foot and ankle surgeon, there aren't many ways you could attach something to a bone that wouldn't cause problems. Other than the (significantly large, true!) hard mineral portion, bones comprise a lot of types of living tissue and you don't want to make a hole in them or their periosteum wrapper unless you absolutely must. The least bad approach might be something like a zip tie that you could carefully work around the bone, but even that would have ridges to irritate tissues and semi-enclosed spaces for bacteria to turn into a strip mall. I highly recommend just getting that magnetic ring instead.
- fudged71 2y ago
  Based on a quick search, a small gap (less than 500 μm) between the implant and bone can actually support osseointegration by allowing trabeculae to form. 3D printed titanium has been used a lot for osseointegration.
  - kstrauser 2y ago
    Quite possibly, but 1) you better be A-OK with having whatever it is permanently grow into your bone such that you'd have to carve it out with chisels or saws, and 2) you still need to hold it there long enough for that to happen, ideally without whatever mechanism you're using for that also being incorporated (like, literally incorporated).
    - sonofhans 2y ago
      > incorporated This took me longer than it should have. Nicely put.
    - yial 2y ago
      Titanium encourages / supports due to its structure human bones growing into it. This does not happen as easily or frequently with stainless steel. (There is still a risk of spontaneous rejection however )
- ASalazarMX 2y ago
  > I highly recommend just getting that magnetic ring instead. But wearing a ring, while convenient and safer, is not biO hAcKiNg. It gives no bragging rights.
  - kstrauser 2y ago
    Neither does MRSA.
crumpled 2y ago
I think the pulling on the skin part is essential to the feeling things part. I don't think people will get any sensation if the magnet is held stationary. I'm only guessing.

by Spivak 2y ago

ramses0 2y ago

Similarly: supposedly superglue a magnet to your fingernail.

carpdiem 2y ago
I tried this once. There was no convincing effect for being able to "detect by feel" AC currents, but you could definitely notice magnetic materials. Maybe the most fun, though, was just playing around and "picking up" paperclips and tiny screws by flicking my finger at them.

kstrauser 2y ago

Having worked in orthopedics quite a bit, and hanging out with my wife who's a foot and ankle surgeon, there aren't many ways you could attach something to a bone that wouldn't cause problems. Other than the (significantly large, true!) hard mineral portion, bones comprise a lot of types of living tissue and you don't want to make a hole in them or their periosteum wrapper unless you absolutely must. The least bad approach might be something like a zip tie that you could carefully work around the bone, but even that would have ridges to irritate tissues and semi-enclosed spaces for bacteria to turn into a strip mall. I highly recommend just getting that magnetic ring instead.

fudged71 2y ago
Based on a quick search, a small gap (less than 500 μm) between the implant and bone can actually support osseointegration by allowing trabeculae to form. 3D printed titanium has been used a lot for osseointegration.
- kstrauser 2y ago
  Quite possibly, but 1) you better be A-OK with having whatever it is permanently grow into your bone such that you'd have to carve it out with chisels or saws, and 2) you still need to hold it there long enough for that to happen, ideally without whatever mechanism you're using for that also being incorporated (like, literally incorporated).
  - sonofhans 2y ago
    > incorporated This took me longer than it should have. Nicely put.
  - yial 2y ago
    Titanium encourages / supports due to its structure human bones growing into it. This does not happen as easily or frequently with stainless steel. (There is still a risk of spontaneous rejection however )
ASalazarMX 2y ago
> I highly recommend just getting that magnetic ring instead. But wearing a ring, while convenient and safer, is not biO hAcKiNg. It gives no bragging rights.
- kstrauser 2y ago
  Neither does MRSA.

crumpled 2y ago

I think the pulling on the skin part is essential to the feeling things part. I don't think people will get any sensation if the magnet is held stationary. I'm only guessing.