This is an interesting approach. I've been wondering about refilling the things -- once the injectors I have expire, I may disassemble one to see if I can work that out.
As long as the needle hasn't been used, and the refill is the same dosage as it came with, I'd expect it to be just as effective as a new injector.
(Disclaimer: I am not a doctor, even if I were you're not paying me, this is not medical advice)
This may be legal to do commercially as well, since you're not manufacturing new devices that could infringe the patent. Sorting out FDA issues would be the only hard part (though likely very hard).
(Disclaimer: Nor am I a lawyer, and you are still not paying me, this is not legal advice)
As long as the needle hasn't been used, and the refill is the same dosage as it came with, I'd expect it to be just as effective as a new injector.
(Disclaimer: I am not a doctor, even if I were you're not paying me, this is not medical advice)
This may be legal to do commercially as well, since you're not manufacturing new devices that could infringe the patent. Sorting out FDA issues would be the only hard part (though likely very hard).
(Disclaimer: Nor am I a lawyer, and you are still not paying me, this is not legal advice)