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On Sun, 11 Dec 1994, Jason Rogers wrote: (in response to my comment) > >I would guess that's more a result of delay to recompression. There's > >very little information on how patients respond to DCI in a chamber when > >treated within 5-10 minutes of the onset of symptoms (doesn't happen very > >often). There seems to be growing evidence that time to recompression is > >of utmost importance in determining whether noticable permanent damage > >occurs. > > Richard I don't agree that treatment within 5-10 minutes "doesn't happen > very often". In the commercial world, with on site chambers, this is > *exactly* what happens. Yes, of course...I'd forgotten about this practice in the commercial world. I guess my brain was focused on recreational/technical divers who do not operate with on-site chambers. > BTW comms is not the only method of comunicating diver to surface and visa > versa. Line signals can work just as well (often better!). A complete > range of things you might want to say are easy to work out and simple to > use. If you use pulls and bells then you have double the range. (pulls > are a strong slow tension on the line, evenly spaced. Bells are short tugs > that come in pairs, like the Ding, Ding.....Ding, Ding of a ship's bell) Hadn't thought of that. Maybe an IWR rig could include a couple of slates, one attached to the hang-line, and one in the boat, marked with a list of different line signals & what they mean. If surface & diver have the same key, it should be easy to communicate. Interesting... Aloha, Rich deepreef@bi*.bi*.ha*.or*
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