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How a Hardware Designer Was Saved By His Own Creation
szczys writes Would you do a better job designing hardware if your life depended on it? Chris Nefcy is in that exact position. Years ago he developed an Automatic External Defibrilator for First Medic. The device allows non-doctors to restart a human heart in the field. When Chris had a heart attack his ticker was restarted with shocks from his own hardware. His story isn't just heartwarming, he also covers the path that led him into developing the AED and the bumpy road encountered getting the hardware to market.
There is zero training required to operate an AED.
If you can't figure out how to open the zip and push the big button marked ON, then I'm amazed you figured out that the person needed first aid at all.
Trained personnel? If they were capable of reading the instructions that were in the case, or listening to the directions spoken by the machine, that covers about 95% of what training is really required for a normal adult.
I am a certified First Aid/CPR/AED instructor for the American Red Cross. The level of training required to use an AED if you are calm, cool, and collected (and no cross-chest nipple piercings are involved) is less than is necessary to assemble a table from Ikea. That said, when you need to use one, calm, cool, and collected are frequently out the window, which is why training is recommended. Almost anything you can do wrong, the machine will let you know that something is wrong so you can correct it. Many kits even come with a razor to deal with the overly hirsute. Oh, and I was involved with building an internal pacemaker capable of phoning home to the doctor (though you had to hold the phone up to your chest, it couldn't reach out and grab it) back when they still required DSPs.
The AEDs automatically analyze heart rhythms (or lack thereof) and notify the operator to push a button if a shock is required. They will provide a shock for two different rhythms- V-fib (Ventricular Fibrillation) and V-Tach (Ventricular Tachychardia). They will not shock for asystole (no electrical heart signals detected at all, and must be avoided so you don't try using an AED to jump start your car or do some tiny welding) and PEA (pulseless electrical activity- the wiring is working, but the engine is dead).
Long story longer: Heart Attacks are NONE of these cases. AEDs WILL NOT PRODUCE A SHOCK for a heart attack, which is simply the blockage of blood to the heart, usually caused by a clot breaking loose. Heart attacks can result in cardiac arrest, which does result in one of the four cases above, but an AED will do nothing for a simple heart attack. TFA correctly describes that he had a cardiac arrest (sudden dropping to the ground), but incorrectly says he flat-lined (asystole, AED wouldn't have helped in that case) and that he had a heart attack (if he only had a heart attack, he could have walked off the court and hopefully gotten a quick ride to a hospital).
Any more info needed? I strongly encourage you and everyone to take a First Aid/CPR/AED class from whatever qualified source is available (Red Cross, Heart Association, etc). The chance that you will ever need to perform CPR is pretty low, but I have had to deal with a choking in a restaurant, a compound fracture at a swimming pool, a petite mal siezure on a subway, and other situations that are far more likely.
Since I've already been a pedantic wanker in this thread, I might as well dance...
"Colonel Shrapnel wasn't blown up, M. Guillotin died with his head on, Colonel Gatling wasn't shot. If it hadn't been for the murder of cosh and blackjack maker Sir William Blunt-Instrument in an alleyway, the rumour would never have got started." - Feet of Clay
Henry Shrapnel died a lieutenant-general, and was posthumously promoted to major-general. Convention is to use that final rank, however even if you are trying to be contemporaneous, he invented the eponymous shell while a lieutenant, so colonel is still wrong.
Richard Gatling was a medical doctor before becoming an engineer/inventor. He ran his engineering company during the US Civil War, and AFAIK he never served.
Likewise, Joseph-Ignace Guillotin was a French physician. Hence Docteur Guillotin, Monsieur Docteur, even Monsieur Medicins, but never Monsieur Guillotin. (Wikipoo says that Guillotin didn't actually invent the guillotine and opposed the death penalty, his family ended up changing their family name due to the shame. Also that a guy called Guillotin was guillotined.)
And finally, Willem Blunt was never knighted, the most he ever got was an OM. "Blunt Instrument" was also a nickname, not his actual surname. So, Willem "Blunt Instrument" Blunt OM. And he died after drunkenly falling off a horse, not being bashed in an alley.
Sir Terence Pratchett, OTOH, has an OBE and is fully entitled.
Science is all about firing a drunk pig out of a cannon just to see what happens.
No training involved. If you've ever seen an AED it's got the instructions printed right on it, with pictorials and everything. I note they're pretty much everywhere these days, even in office and public spaces.
Now the thing about AED's that interests me is who is going to put the pads on you and activate the machine? The whole bystander effect and all.