Today I finally got a response from my home insurers.

The guy told me that YES they were 'willing' to insure my remote for my stim. He told me that I need 'proof of ownership' in the event that if I claim for the remote I have to prove that it belongs to me. I told him that I got this implant through the hospital and of course it was mine as the system is IN ME!!!!!!
Anyway I told him that in the event of me having to claim from the insurers for the said item, I would then get a letter from the hospital affirming that I AM the owner of said item...Geezzzzz I doubt I would have to do it for my tv remote, but there you go!
The pleasure of having it now insured has cost me an administrative charge of €25 ($32 approx)

Must rememeber NOT to bring it to the loo with me though