Mailing List Archive Mailing List Archive
Thanks for the clarifications. When we bent one of the guys working for me doing a 35' bounce dive profile (diagnosed Type II) and I spent all night pressing him and talking to his pregnant wife on the phone I started taking bubble theories and variable ascent deco a lot more serious. I am a lot less comfortable with direct ascents now. I feel much more comfortable doing a long (for me) cave dive with deco than a no stop o/w working dive. Its ironic that the more I learn the more I realize how dangerous things used to be teaching and doing O/W bounce dives. Running tables by the book is great if you trust what Navy guys in a chamber have validated. Navy is not as bad of a source as most would believe. They are open to field data (their own). After flight 800 profiles that presented unacceptable DCS incidence they modified tables. After the last set of SUR-D tables came out they had a lot of CNS issues so they modified tables. They represent a huge database of unfortunately somewhat single scope dive data. Their direct ascent profiles incur stops when plugged into Deco planner with my gradients. Arent all the technical agencies still using Navy tables as a building block? If I was teaching Navy I would be concerned that there would be someone out there trying to modify SUR-D O2 tables for scuba. Is Deco planner a pretty acceptable starting spot for your people? Are you basing your protocol off Yount or Hamilton work and assumptions? Both have good reading. Barring the effects of the increased PO2 during the working portion of the dive I would think you could allow a much longer initial on O2 period and then gradually introduce longer breaks with shorter periods. With the runtimes your O/C Gas Divers need have you seen evidence of pulmonary issues using other deco mixes before the 100% switch? Do your stops at deeper depths require you to incoporate gas breaks into your deeper mixes? IE 70'? Im interested to hear if any of the IANTD's on the list have done a long enough exposure to see pulmonary issues on 80/20? I hope Im not the only one getting something out of this. (Everyone take a turn squeezing more out of Trey while he is feeling generous) Thanks >From: trey@ne*.co* (Trey) >To: "Isaac Callicrate" <icallicrate@ho*.co*>, <techdiver@aquanaut.com> >Subject: RE: Dr Black/ChamberHaters >Date: Mon, 10 Dec 2001 18:56:18 -0500 > > >Tallahassee chamber so far is fine for our needs. We alert them when we are >diving, and they know what diving we are doing. So far the bends cases that >they have seen from us have been either botched deco by know it alls who I >booted or made DIR, fat slobbery which we bench for, and diving with an >existing injury and aggravating it. Sankey kept doing that ( until he got >his back operated on finally ) and he was there so often he started dating >one of the chamber nurses. Tally cooperates with us well, does not bother >with the weenie bullshit, but I still like to call up DR Keper whenever >something happens and ask him if he can get my diver back ready to dive the >next day. That is my favorite phone call to make, and actually the real >reason I call the doctor is to check on my diver. > >We have had no bends from doing the deco I do. We do not treat skin bends >if >they occur since it just aggravates the injury, although we did have one >recent case of fat slobbery skin bends that did get treated, and that guy >will never dive again in the WKPP until he learns how to do pushaways. > >The most serious bends cases ever seen in the WKPP were by support divers >who had done a dive and then bounced shallow to pick up bottles, allowing >compressed bubbles to get past the lungs and the reexpand as they came back >up, giving them a real CNS hit. That has not happened in a long time >because >I no longer allow that ( and actually never did but failed to beat it into >the heads of some of these people. The diver must be out for four hours >before doing support, and they must ascend properly or I boot them for >stupidity. > >Keep in mind in this discussion that we are doing massive bottom times, >real >bottom times, and are decompressing on my schedules which are three to four >times faster than anything being done out there. One would think we would >get bent if anybody would, but it is those who do not do it correctly or >have preconditions that get bent > >-----Original Message----- >From: Isaac Callicrate [mailto:icallicrate@ho*.co*] >Sent: Sunday, December 09, 2001 7:51 AM >To: techdiver@aquanaut.com >Subject: Dr Black/ChamberHaters > _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]