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Thank you for your inquiry about custom magnets. Please find our quote for these custom magnets below. Custom magnet orders require a minimum purchase amount of $150 per shape. Magnets are typically ready for shipment in 7-9 weeks after we receive your order.NdFeB CYLINDER Magnet0.063" diameter x 0.125" thickGrade N52, Nickel (Ni-Cu-Ni) Plated with Parylene coating, Axially MagnetizedQty 413 @ $0.36 ea. (minimum order quantity)Qty 1000 @ $0.33 ea.Qty 2500 @ $0.28 ea.Qty 5000 @ $0.25 ea.
There are ways and means...
this way one would get a somewhat elastic type of implant, that is no longer prone to breaking. difficult to manufactor tho.
the 2⌀mm sounds fine. getting the magnet out is one thing ( as you could simply push it out with a stick ) . but doing so and making sure it wont touch the sharp edge of the needle itself is another challenge. maybe by using a bigger magnet outside the finger to pull it straight out into the tissue?
with a bit of luck, they fit into a gauge 12 needle used for implanting rfid tags into animals. those are pretty easy to use applicators that also have a mechanism to push out the magnet/tag.
guess it is time to get some of them. crack them open to see how thick the coating is, and check if they fit the applicator.
I might have a good news for you, i'm willing to buy up front those 150 magnet if
They "work", more I'm also willing to give them away too, (not the shiping cost, and not in large number, i don't want to sponsore someone else buisness)
But I have no problem to help someone getting his implent for free ;)
My motivation, is that first this is kinda dream come true, i read the story on a blog yesterday, And I could not belive it, i was so happy and exsited....
Anyway, if they can be injected under the skin and if they work I'm in...
If not i'm sure we coyld find something that does and i will be on it too...
Please let me know...
(ps sorry to butcher the english, I'm french...)
if anyone else is interested http://www.bola.de/en/products/stirring-and-mixing/details/kapitel/10/kategorie/40/num/C__350_00/ext/detail.html?cHash=08c8b20caf9e3b4d7b2b423b02a8fabc
they are a bit weaker than neodym magnets, but they are high-quality lab-equipment , teflon coated, and even have FDA conformity. the 5mm long, 2mm diameter version should fit into the rfid-tag applicators and ease up implantation a lot.
they have a minimum order of 50 euros and dont sell to private persons.
one magnet is bout 1€50
all in all, a very promising find if i may add that. if there's a group buy, i'd be in for 8 or 10
if noone has a registered company, i can ask a friend of mine to order for me. given there are enough people willing to try those magnets out.
about decay: it is very stable ( below 260°C ).
scratching depends on the coating thickness. given those things are designed as highest quality stirring magnets that are supposed to spin around at high speeds on a surface.. that should be not much of an issue.
just for safety i'd cut open one of the magnets and see how thick the ptfe wall really is. unless you forcefully scratch it befor implantation that "should" be no issue at all.
sending to america would be no problem.
Sigiel, are you serious about fronting the cost and sending them out with the only cost being shipping? Because I'd be very interested in that if you were!
I suppose you could seriously worry about rupturing the bioproofing of a magnet this way. You might want to invest in the fingernail alternative. There's a discussion on it somewhere...
Someone might want to email these guys for a quote, Looks like they can do pretty much any size or shape, from 1X1 mm to 40X5mm
They also do Parylene coatings.