Hey,
By the way,, I Love Bluetooth.
Having said that, if your application needs IPv6 connectivity i highly recommend using Thread Protocol for your All/Any IPv6 Needs ,,, Thread is Low Power, carries IPv6 nativly, Secure,,, Connects to cloud and easy to use...
However you still need Bluetooth Smart ,, we can do it.
We have experience in Medical devices,,, lets chat for more details...
Cheers !