| From: tony | 28/04/2000
2:17:00 |
| Subject: breathing liquid oxygen | post id:
62095 |
| i,m am a keen diver and have seen
a few experiments with mice breathing liquid oxygen is it possible to do
put this into practice with humans?? | |
| From: NickM | 28/04/2000
6:23:00 |
| Subject: re: breathing liquid oxygen | post id:
62099 |
| Not having any idea medically,
just relying on engineering principles, wouldn't the change of state from
liquid Oxygen to gaseous cause your insides to freeze solid? Or do the
increased pressures at very deep depths cause our bodies to be able to
absorb Oxygen in its liquid state. Sorry if I am off track. | |
| From: Evil Roy Burton | 28/04/2000
7:14:00 |
| Subject: re: breathing liquid oxygen | post id:
62104 |
| It's not liquid oxygen, but an
oxygenated flurocarbon. The fluid 'holds" O2 that your lings can
extract. | |
| From: Dr Paul (Avatar) | 28/04/2000
10:13:00 |
| Subject: re: breathing liquid oxygen | post id:
62126 |
| Hi all, the US Navy are using such superoxygenated flourocarbon medium for deep diving exercises already. Evil Roy has it quite correct. I have heard the rumour that the "liquid" breathing scenes from the movie "The Abyss" were visually correct, so the actor did start the breathing of liquid into the lungs. Such systems are already within my lifetime. Paul | |
| From: Kothos | 28/04/2000
11:15:00 |
| Subject: re: breathing liquid oxygen | post id:
62160 |
In "The Abyss" the scene with the mouse breathing a liquid is real, but the scene with the actor doing the same in an environment suit is faked (although I have no idea if it looks real or not). | |
| From: Paul Hurley | 02/05/2000
10:46:00 |
| Subject: re: breathing liquid oxygen | post id:
63520 |
| the US Navy are
using such superoxygenated flourocarbon medium for deep diving exercises
already. It's a pity you didn't get into the original 'Liquid breathing' thread, as this was the opening question. Can you point me at a source for more info? I'd be very interested in if/how the list of difficulties (discussed in said thread) are to be/have been overcome. I have heard the rumour that the "liquid" breathing scenes from the movie "The Abyss" were visually correct, so the actor did start the breathing of liquid into the lungs. I doubt this. Humans can't take liquid into their lungs (see 'Liquid Breathing' thread) without some, not shown in the movie, way of suppressing the 'gag' reflex (which rats don't have). Such systems are already within my lifetime. At least in the movies! | |
| From: Dr Paul (Avatar) | 02/05/2000
12:07:00 |
| Subject: re: breathing liquid oxygen | post id:
63544 |
| Hi Paul H, I have just undertaken a Yahoo search using "Liquid Breathing" as the search text. It came up with a large number (about 70) response sites about LV (Liquid Ventillation).LV appears to bae a reasonable medical technology to use on severely premature babies, where the surfactant Lecithin has not been laid down on the alveolal surfaces. The Perfluorocarbon can take over the role of the alveolal surfactant allowing the alveoli to be open to allow O2 transfer to the blood. Here are some edited highlights and sites for those interested. Perhaps the most bizarre new diving technology is liquid breathing. Those who have seen or read The Abyss will be familiar with the concept. Basically, the lungs are filled with an Oxygen-rich fluid, heated to body temperature. The alveoli in the lungs can then extract oxygen and dump carbon dioxide back into the fluid. This should eliminate the need for elevated partial pressures of oxygen and hence oxygen toxicity. It should also obviate the nitrogen-induced dangers of DCI and nitrogen narcosis. However, the sensation of filling one's lung with fluid oxygen rich or not, is very unpleasant. This means liquid breathing is likely to remain restricted to military use where recruits of the requisite mental and moral fibre can be readily found. http://www.translogik.com/sites/hyperdome/tscdeepw.htm Some years ago, Dr. Tom Shaffer of Temple University developed a liquid hydrofluorocarbon that can carry enough oxygen into the lungs to support mammalian life. His original purpose was to save severely premature infants, whose lungs are not able to handle gaseous oxygen. In this, he succeeded. Extensive animal studies and preliminary experiments with human infants show that his new liquid makes it possible to bring fetuses to healthy term after as little as 12 weeks in the womb. But the substance has other applications, one of which is to neutralize almost all the effects of acceleration stress. http://www.esek.com/jerusalem/timetrav.html Another two good sites are: http://www.rnweb.com/ce/misc/pedvent.html http://www.med.umich.edu/liquid/whatislv.html I hope not to appear smarmy or arrogant, I practice trying not to be at all times. This information is provided to keep a very interesting thread going. The "promise" of advantage of LV to small children and the possibility to aid in future space travel seems a great thing to advance. I hope this helps Paul | |
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