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From: Archimedes' Lever on 30 May 2010 23:30 On Sun, 30 May 2010 19:57:54 -0500, "Shaun" <rowl(a)nomail.com> wrote: >Also it take the same amount of current through the body (dry skin, moist >skin or open wounds) to cause their heart to fibrillate. Wrong. The key is the pathway, and how much of the total current actually flows through that part of the pathway that is also comprised of the heart. The heart only needs a couple milliamps through it to fibrillate or defibrillate. As one gets further and further from the heart as far as the current source and exit is concerned, the amount of current needed to get the heart at 2mA increases, because the pathway is millions of parallel resistors of which only a few thousand relate to current flowing through the heart. The current in is one value, and the current out is that same one value, but the current in each of the millions of parallel resistors differs for each and not all contribute to any flow that would relate to fibrillation or pass through the heart. So entry point and egress point are very important. There are pathways that would not cross the heart at all. Mode of entry is also important. Dry skin has a high resistance. Blood does not. If punctures by the voltage or by other means is involved, the current to cause fibrillation lowers because the skin is not longer in the model. You lose. Again.
From: Archimedes' Lever on 30 May 2010 23:31 On Sun, 30 May 2010 19:57:54 -0500, "Shaun" <rowl(a)nomail.com> wrote: > because there is a direct connection to the internal fluids of the >body, That is what I said, dumbfuck.
From: Archimedes' Lever on 30 May 2010 23:31 On Sun, 30 May 2010 19:57:54 -0500, "Shaun" <rowl(a)nomail.com> wrote: > hence less voltage is needed to cause fibrillation. NOT voltage, idiot. CURRENT causes fibrillation. You lose, again.
From: Archimedes' Lever on 30 May 2010 23:34 On Sun, 30 May 2010 19:57:54 -0500, "Shaun" <rowl(a)nomail.com> wrote: > >500 uA of current is the maximum amount of leakage current allowed in >medical equipment through ground and if the ground connection was broken, Those numbers are for AC powered devices. Give us the handheld numbers, obsolete boy.
From: Archimedes' Lever on 30 May 2010 23:36
On Sun, 30 May 2010 18:42:34 -0700, "Paul Hovnanian P.E." <Paul(a)Hovnanian.com> wrote: > >According to http://en.wikipedia.org/wiki/Defibrillation, it takes >hundreds of Joules to defibrillate a heart. And that is through the side of the chest and the chestplate bone. It takes far less in an open heart surgical procedure. |