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Thread: Skin/lymph bends

  1. #11
    Darlene Starr - DIY Diva Scuba_Vixen has a brilliant future Scuba_Vixen has a brilliant future Scuba_Vixen has a brilliant future Scuba_Vixen has a brilliant future Scuba_Vixen has a brilliant future Scuba_Vixen has a brilliant future Scuba_Vixen has a brilliant future Scuba_Vixen has a brilliant future Scuba_Vixen has a brilliant future Scuba_Vixen has a brilliant future Scuba_Vixen has a brilliant future Scuba_Vixen's Avatar
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    Re: Skin/lymph bends

    Quote Originally Posted by AD_ward9
    That is not what the researchers who tested this found to be the case.

    Nitrogen does perfuse into the skin. It perfuses out much less slowly than helium, and on the profiles they tested, they could increase DCS incidence by using heliox for the diver and nitrogen mixes for the suit.

    Cheers

    Alex
    This isn't the "research" where they skin bent a pig about 20 years ago is it? ..... That porker has become immortal.

    They key was the breathing mix of heliox, so that there was no N2 in the system, hence the greatest possible gradient for perfusion. That just isn't exactly applicable for breathing trimix.

    In real life, where heliox is the exception, not the rule, plain old air has a solid track record when used as inflation gas, even at it's significant N2 percentage.

    When you get to dives that push the envelope, there's a lot of new considerations all around that need be examined.


    Darlene

  2. #12
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    Re: Skin/lymph bends

    Quote Originally Posted by AD_ward9
    Perhaps a new treatment? Cancers tend to have poor blood flow (hence cancer drugs are hard to get to the right tissue), and if that is the case they will be damaged by the bends faster than other tissue.
    Sadly the eyes/testacles are also poorly perfused. Whilst it could save a fortune in supporting offspring the benefits could be offset by the guide dog's food bill ;)

  3. #13
    Banned - Threat of Litigation AD_ward9 has a reputation beyond repute AD_ward9 has a reputation beyond repute AD_ward9 has a reputation beyond repute AD_ward9 has a reputation beyond repute AD_ward9 has a reputation beyond repute AD_ward9 has a reputation beyond repute AD_ward9 has a reputation beyond repute AD_ward9 has a reputation beyond repute AD_ward9 has a reputation beyond repute AD_ward9 has a reputation beyond repute AD_ward9 has a reputation beyond repute AD_ward9's Avatar
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    Re: Skin/lymph bends

    Quote Originally Posted by Scuba_Vixen
    This isn't the "research" where they skin bent a pig about 20 years ago is it? ..... That porker has become immortal.

    They key was the breathing mix of heliox, so that there was no N2 in the system, hence the greatest possible gradient for perfusion. That just isn't exactly applicable for breathing trimix.

    In real life, where heliox is the exception, not the rule, plain old air has a solid track record when used as inflation gas, even at it's significant N2 percentage.

    When you get to dives that push the envelope, there's a lot of new considerations all around that need be examined.
    Darlene
    No, it is a NUI paper, a couple years old. I will ask the author if we can copy it onto here. There is just so much stuff those guys have, takes days and when one reads things not of immediate interest then it goes back on the shelf.
    They used divers on heliox and nitrogen mixes in the suit. Also looked at argon if I can remember.

    Cheers

    Alex

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