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Dear Karen; This is the most.....~!@#$%^&*()_++_)(*&^%$#@!~ --- Karen Nakamura <karen@gp*.co*> wrote: > Folks - > > There's been a lot of medical evidence against > purge inflating an > unconcious, non-breathing drown victim. The > proponents of this dangerous > practice haven't presented any evidence to the > contrary. Nonetheless, there > are still some folks who think it's both safe > and practical. After having read most of the posts regarding this subject, I think more than enough evidence has been presented supporting it as a viable alternative with much better potential of success; Therefore, it warrants being considered as addendum training information for anyone who truly desires to be effective during a real emergency and not just give it lip (NPI) service in BS discussions. > > Here's an experiment to try in the safety of > your own home. You will need: > > * Condom or large-mouth balloon > * Scuba regulator and tank (air is fine) > > Blow the condom/balloon up once or twice with > your own breaths. ;-) I love this! ;-) LOL > Notice the > size and shape. The condom will inflate so that > it's almost balloon shaped > when you've given it a good full breath. Excellent example! Very "Scientific." I am impressed! So, are you implying with your wealth of experience and knowledge that the resistive force needed to overcome a condom and inflate to dimensions well beyond its natural state closely or approximately mimics the same resistive force factors of the human lungs? Karen, please....GMAB! > Now put the mouth of the condom over your > regulator's mouthpiece. Now, try > to inflate the condom. If you don't have your > hand over the regulator vents, > the condom will become ... well ... semi-erect, > but it won't balloon up to > full lung size Correction, over inflated condom size! > since there isn't sufficient > pressure. NS! Good conclusion. > In order to get > sufficient pressure, you have to close the > mouthpiece vents, but this is > much more difficult than it appears and it's > hard to get enough coverage > over the vents at the same time as applying > just the right amount of > pressure to the purge valve. > > You'll get one of two results most of the time: > an underinflated condom :-( > (lung) or overinflated, burst condom (lung). This sounds like a 7th grader's science project! > > Now imagine trying to do this at the same pace > as you'd be giving rescue > breaths. Try imagine doing this while towing > someone in the water. It just > isn't very practical either in or out of the > water. > > This isn't even the full picture, in real life > you'd also have to worry about: > * Making sure the mouthpiece seal is secure PLEASE READ CAREFULLY! The regulator mouthpiece is sealed and held in place by being between the middle finger and the ring finger of the left hand. If mask is gone, the thumb and index fingers of the same hand are sealing the nose. The little finger is below the left lower jaw to assist in hyper extension of the neck thus maintaining an open air way. This hand is coming from behind the victim presuming you are supporting him his back to your chest while swimming. The right hand is coming around victims right side to operate the regulator purge button. Rescuer is looking across victims shoulder to observe chest rise and fall. If sufficient rise becomes an issue, "Partial blocking," of the exhaust valve may be necessary and accomplished in what ever means are necessary depending on your regulator selection for the O2 kit, something to consider beforehand. This may or may not entail gear removal. If one is wearing the local dive shop, then something is going to be getting tossed. One the other hand, DIR means less to deal with or shed if necessary. Its an emergency which may require losing some of your gear because no ones life, I repeat, no one's life is worth the cost of a piece of equipment! > * Making sure the victim's airway is open and > clear See Above! > * Lung inflations aren't as visible as a > condom inflating See Above Again! > > Conclusion: take a rescue/CPR/O2 course If you're doing this kind of diving, that should have been 1st on the list. What they teach though isn't carved in stone as the definitive answer and the only way to address any given rescue. This is cutting edge diving and one must be inclined to adapt, adjust and overcome! > and > stick to what you know. Ditto! I highly recommend that. In your case, stick to the Science Projects! Leave the rescues to those who can. I just hope someone with your orientation isn't my rescuer if I ever become the victim. I want my O2 and what little cerebral matter I have left to stay in tact. + PSI regulator resuscitation is the most effective way to accomplish this in the right hands. BTW, love the image of you blowing that condom. You single? ;-) William ===== Interested in how to have someone else pay your monthly IP server fees, even how to pay for your computer system? Check it out! http://www.alladvantage.com/go.asp?refid=EFU396 FREE INTERNET SERVICE AND COMPUTER!!! IT REALLY DOES PAY!! __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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