Watch a movie called "Last Breath" on Netflix. Give you some ideas of what ita all about.
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Watched it last night, brilliant and terrifying!
Haven’t seen the movie yet but are very familiar with the incident, a vessel run-off (what happened in this instance) is something that does happen from time to time, but the consequences are not always this dramatic, it obviously depends a lot on the sea state and also how early it is detected and and.
Divers are supposed to ensure at all time that their umbilical’s are clear to the bell and supervisors (well the good ones) normally remind the divers constantly to check their umbilical’s when working close to, or inside of structures. It is unfortunately not always possible due to zero or very limited visibility and other factors, so therefore accidents do happen.
The fact that the diver in this instance was located and revived is nothing short of a miracle and the fact that he suffered no brain damage is even more of a miracle. I mean this guy must have been clinically dead for an extended period of time.
When losing one’s umbilical, you’re immediately deprived of warm water to your suit as well as breathing gas, well at that point one will then open a valve to give you access to your emergency bail-out breathing gas, but there is unfortunately no substitute for the loss of the warm water, and that could lead to sudden onset of hypothermia. In this diver’s instance, he had emergency gas for a few minutes only but when they later found him, he was clinically dead with still gas in his emergency supply, so therefore he must have shut down due to the coldness. In sat diving we do dive with elevated oxygen levels (normally between 700-1000mb whereas on dry land one roughly breathes 210mb) and the emergency supply is normally even higher than the 1000mb, so his body was saturated with oxygen and that obviously did help as well
Funny story, the diving company gave this guy the choice of indemnifying them and have a job with them for life, or to pursue the legal route and get millions of pounds awarded by the courts, and he chose to not take legal action, he was back on the job within less than a month