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| LeeR |
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LeeR
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 Posted: 20:23 - 15 Jan 2010  Post subject: ThermaHelm |
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Shamelessly stolen from The Rider's Digest (February edition), ThermaHelm an endothermic lining in the helmet to protect your brain during the "Golden Hour", thought it might be of interest.
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| pwntifex |
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pwntifex
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| LeeR |
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LeeR
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| Posted: 15:14 - 16 Jan 2010 Post subject: SuperSkin helmet |
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Fair enough, if that doesn't float your boat what do you make of SuperSkin helmets by Lazer?
PS> where have you been?
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| That_Hornet |
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That_Hornet
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| Posted: 19:03 - 16 Jan 2010 Post subject: |
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Well its just using basic knowlage and applying it to the helmet.
If you have a swelling on you fist, ankle or anywhere. You stick ice on it to stop the swelling.
In a bike crash you head is going to swell inside the hot helmet that's made primarily of polystyrene, which has been used for years to keep things hot. (Loft insulation to name one)
As i have read, this is designed to keep your head cool for 40 minuted after the impact. That's a lot of time where your head is being keep cool and not swelling as much. Thus saving brain cells and minimizing brain damage.
Very good idea IMO
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| MattHirst |
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MattHirst
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| Syx |
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Syx
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| Posted: 14:59 - 18 Jan 2010 Post subject: |
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I thought this was going to be some cool helmet with built in night vision.
Why I thought that, I'm not entirely sure!  |
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| Wafer_Thin_Ham |
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Wafer_Thin_Ham
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and
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| The999Kid |
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The999Kid
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Posted: 18:56 - 03 Feb 2010  Post subject: |
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| ThatHornet wrote: | If you have a swelling on you fist, ankle or anywhere. You stick ice on it to stop the swelling. |
The swelling surrounding an injured limb is different to that of a raised intracranial pressure in many ways...
Firstly, the swelling in the limb is a protection reaction caused by histamine and other inflammatory agents of the immune and parasympathetic nervous system to protect the limb from further damage. The cells surrounding the injury take on vast amounts of water to become turgid, or stiff and minimise movement of the site. This also helps stave off infection by reducing the available water supply, thus dehydrating water dependent pathogens.
The area surrounding the limb is also skin, a highly flexible and elastic organ that can change size and shape to accommodate the swelling and increased pressure with very few side-effects barring overactive sensory nerves.
Raised intracranial pressure due to trauma or head injury can be caused in the same manner as injuries to a limb (Multiple impacts with the skull when involved in collisions, sudden stops or forceful impacts with solid objects). It can also be increased through a bleed (haemorrhage) or blockage of the ventricular cycling ducts that recycle CSF around the brain. Both these events cause an increase in fluid levels surrounding the brain.
The Skull, unlike, skin does not have the capacity to stretch to accommodate increases in size or pressure changes within the cranial vault. The increased volume in the cranial space will then exert a force on the brain as it cannot overcome the bony fusions of the skull itself. Basically, the more liquid begins to fill the skull, the more the brain suffers. As the brain begins to be crushed inside the skull, smaller blood vessels will succumb to the increased pressure and collapse, starving the nervous tissue of oxygen, thus complicating the issue.
Now blood vessels also succumb to the cold (as everyone knows) and narrow significantly to prevent heat loss in cold conditions?. (see where I?m going?) You are proposing to narrow pretty much all surface blood vessels in the scalp and surface of the brain, increasing the effect of the raised intracranial pressure further, decreasing the time taken for neural impairment to take hold, making assessment of cognitive ability by medical persons very hard!
| ThatHornet wrote: |
As i have read, this is designed to keep your head cool for 40 minutes after the impact. That's a lot of time where your head is being kept cool and not swelling as much. Thus saving brain cells and minimizing brain damage.
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I think you can see from my pathological breakdown of head injuries that hot and cold don?t enter into it as far as the head in concerned. If you want to incorporate the body then feel free to send me a message and ill happily go into more detail as to how ambient temperature can help maintain a patient?s blood pressure after physical trauma.
H2H
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NDB 19/10/1989 - 1/11/2010 |Nowhere.Elyseum wrote: I get the distinct feeling that Tim should be our secret weapon for future trolling. I don't know many people that can rip the piss in Iambic pentameter |
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and
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| LordShaftesbu... |
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LordShaftesbu...
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| Posted: 18:09 - 04 Feb 2010 Post subject: |
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| https://news.bbc.co.uk/1/hi/7815105.stm wrote: | Brain-cooling devices developed
Cooling the body down is thought to slow tissue damage
Scientists have developed new ways to cool heart attack and stroke victims' brains to protect them from brain damage.
UK doctors believe that cooling could save lives by slowing the release of harmful chemicals from nerve cells, and many hospitals have adopted the idea.
Among the inventions, reported in New Scientist magazine, is a cap that blows cold air across the scalp.
Other innovations include a chilling nasal spray and an icy lung injection.
Many intensive care units across the UK now use cooling techniques to help heart attack patients after two major research studies showed significant benefits.
This "therapeutic hypothermia" is normally induced using cooled pads, ice packs or even injecting chilled saline liquid into the blood stream.
However, researchers are hunting for ways to achieve the necessary 4C drop more efficiently - or targeting only the brain itself. You have to treat 30 patients with clot-busting drugs after a heart attack to save one life - with cooling it is more like six
The first of the new devices, developed at the University of Edinburgh, is a cooling helmet which works by passing cold air across the scalp, exploiting the dense network of blood vessels there.
Tests on volunteers, reported in The British Journal of Anaesthesia suggested that the hood was able to cool the brain by 1C per hour.
In the US, scientists are working on other quicker ways to achieve this, one by spraying a fine mist of droplets deep into the nasal cavity.
The liquid used, perfluorocarbon, evaporates rapidly, taking heat away from the area, and cooling the brain as a result - by up to 2.4C per hour.
A trial in pigs suggested this might not just reduce the chance of brain damage, but also improve the chances of successful resuscitation.
Cooling has the potential to be a major lifesaver: "You have to treat 30 patients with clot-busting drugs after a heart attack to save one life - with cooling it is more like six." |
Sounds like a good idea to me; brain damage is often made worse by brain swelling and being trapped inside the cranium. |
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| The999Kid |
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The999Kid
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| Posted: 20:40 - 04 Feb 2010 Post subject: |
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I have bolded the erroneous section of your post, unfortunately due to the nature of the skull, this is the only body part that will not undergo a decrease in internal pressure through cooling.
As you cool the external surface of the patients head the skin contracts as a response to the cold, but so does the skull, but to less of an extent, so whatever pressure is decreased by tissue contraction, is lost through the contraction of the skull..
However! There is much to be gained in the fact that cooling a tissue reduces cell decay and death, retards blood flow and can prolong the life of tissues in oxygen poor environments.
My argument was not against the effect of the helmet (or at least i hope i wrote it to that effect) but that the cooling effect would reduce the intracranial pressure.
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NDB 19/10/1989 - 1/11/2010 |Nowhere.Elyseum wrote: I get the distinct feeling that Tim should be our secret weapon for future trolling. I don't know many people that can rip the piss in Iambic pentameter |
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Old Thread Alert!
The last post was made 16 years, 32 days ago. Instead of replying here, would creating a new thread be more useful? |
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