Mechanical lifespan of flex implants?

For the Flex series, in this particular case the FlexSecure that is in the mail to me (happy dance!), is there a suggested “remove by” date after implant due to mechanical failure (obviously the tech has a very very long lifespan)?

I know there’s nothing prescriptive (that I’ve seen) but I’m curious if there’s an amount of time where breakdowns become more likely that, if you’re thinking conservatively, establishes a safe time boundary to pop it out to avoid polymer delamination or whatever the most likely “death due to old age” failure scenario would be.

Ours will probably happen before the Flex implant reaches it’s middle age crisis! :sweat_smile:

Jokes aside, these implants hardware have no “mechanical expiry date”.

The ones you see with an expiry are usually payment implants, and that’s entirely due to an arbitrary limit imposed by the likes of Visa on how the tokens must be issued and embedded in the chips.

Or maybe implants dependent on certain software ecosystems.

This thread might help put you at ease as well:

It’s not about the flex series, but it does showcase how much effort DT puts into making sure these implants can last!

Also… Welcome!

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and here’s the Link I tried finding and failed: Felx implants Tests!!

@Pilgrimsmaster , I need to learn better your ways! :sweat_smile:


Appart from converted credit cards, implants don’t expire.

But there is an expiration date on the pouch sterility, it’s five years after manufacturing IIRC. But as long as you get it implanted before that, you don’t have to worry about it. And DT offers the service to inspect and resterilize flex implants if you have to get it removed and want to have it reinstalled or something.

Here’s more information about the dates on the sterilization pouches:


There are a number of factors involved with expiration. Two of them have to do a memory… The data retention period, and the wirte cycle count.

Aside from that, the material will not break down. Mechanical failure is always inevitable as nothing lasts forever, but the following issues are possible;

  • Mechanical failure of the electrical pathways in the flexible PCB

  • Failure of the mob package connectors between the external metal tabs and wire bonded internal silicon die in the middle of the ABS potting

  • Failure of the ABS potting due to cracking or flexing it wasn’t designed to handle which causes a subsequent failure of the wire bonding between silicon die and metal tabs in the mob package frame.

  • Potential failure of the encapsulation if there were issues during manufacturing. This is the most difficult thing to track down. I’m sure that some people have experienced this kind of failure, but most failures are due to extreme flexing events… many of which I’m suspicious of occuring during installation.

I am currently working on a way to improve the encapsulation process and reduce some of the variability of the process. I’m also attempting to explore ways to non-destructively test each unit to ensure complete and proper encapsulation.


You’ll probably boot me off here for mentioning IAR, but interestingly they state that the walletmoor has a durable lifespan of 7 - 8 years.

You can talk about other companies here. It’s a community hub for implants, not exclusively a DT support forum.

DT designed and manufactures the walletmors. They say 7-8 years because that’s how long until the payment chips on them expire.

I see. Thanks for clarifying that, my misunderstanding maybe down to the website translation.

Yeah, no worries. We’re all kind of on the frontier of a new industry (payment implants) so the details can be a bit fuzzy and change pretty rapidly