Traumadiver, don't give up. . . bringing new ideas into a new application is how most great "inventions" happen. You are a paramedic, help come up with an idea for keeping medical supplies dry. I was an EMT and soaked almost as many dressings around the water, as I used. 4x4's, roller gauze, even bandaids are contaminated when wet. I've tried the "waterproof" boxes, and large zip locks and sooner or later I'm throwing out wet materials. . . so much for dive buddies that look for the cleanest spot to throw their weight belts, wet suits and once even dead fish.
I reduced the volume of what I carry and put everything in a welders, welding rod case. It is strong plastic, with a rubber gasket seal and has not leaked in use for over 20 years. However, It's limited to a couple of roller gauze rolls, a package of 4x4's, a few 2x2's, and used most often lots of 1" bandaids.
Turn your inventiveness to find protection from water for more trauma equipment. Remember, if it looks like a clear spot on the deck, your dive buddies will throw something at it. Don't give up because some on the board won't agree. . . just keep trying to teach the "savages". Just remember, if everyone were as careful as you. . . you would be out of a job.
Oh, and that "pelican-hook" style "SafeDive" wire belt buckle in the ad right above? It was invented by the same guy who invented the SPG as we known it today. Even in 2009, wire buckles have superior safety advantages, albeit they take more time to properly set the desired length. Once that's done, these wire buckles (A) maintains the same length when hooked, (B) have great holding power, (C) don't come loose on their own (no dangling "ears" to catch) and, (D) open easily with less coordination than what's required of size-squeeze buckles.
