I have never heard of a bio-medilator. Perhaps, if you describe what you want to do, we can help you. If you mean bio-modulator, what is it that you want to modulate?
When I first moved to Michigan, I was in line at an auto parts store. The guy in front of me was trying to buy a "laminated" switch. He turned out to be my neighbor. He ended up with an "illuminated" switch.
Way back when, I've seen "laminated switches". The outer case was made from layers of bakelite very similar to the construction of a laminated padlock.
Ah, one of those. I wonder if it was invented by the guy who is selling kits for electronic bacterium/parasite-zappers, which featured in another thread on this forum?