What exactly does "Hospital Grade" mean?

Facts:
Hospital grade plugs provide more robust grounding than a regular plug. They are built to a better quality. Grounding and isolation transformers are very important to medical equipment. The 15 and 20 amp (three prong plugs) are not suitable for use around flammable materials. There are explosion proof 15 and 20 amp hospital grade plugs that look totally different than a regular plug. You have to insert these turn them a quarter of a turn. These are usually found in older operating rooms. No one at a hospital checks the force required to remove a plug.
(My boss is going to laugh when he hears that.)

I am a biomed tech and I work on and test medical equipment.

I put a bunch of Porterports into my system and there was a very notable improvement. Of course, considering what came out of the walls in the way of really cheap recepticles, this was to be expected. Not an expensive upgrade.

Well worth it.

Like everything else in a hospital it probaly just means they charge 5 times what it is worth!

"Hospital Grade" takes the place of "Mil-Spec" now that the U.S. healthcare system has overtaken the Military with regards to power and waste.

I tried them all and I did not noticed any difference. I have a BAT VK-6200 and it works the same in a PS Audio Duplex receptacle as it does on a $0.49 Home Depot cheapie.