Posted on 11/12/2014 3:53:06 PM PST by steve86
The ward boy fractures his arm, while his colleague sustains serious injuries, including a punctured urinary bladder and severe internal bleeding.
Two employees of the Tata Memorial Hospital's treatment and research centre in Khargar in Navi Mumbai suffered grievous injuries on Saturday evening when one of them walked into the centre's MRI room holding an oxygen cylinder, activating the machine's monstrous magnetic field.
The two employees - one a technician and the other a ward boy - were pulled to the machine like a toy magnet pulls a pin and remained stuck to it for nearly four hours before an engineer from General Electric arrived and deactivated the magnetic field.
While the ward boy, Sunil Jadhav, 28, who brought the oxygen cylinder into the MRI room, fractured his elbow, the technician Swami Ramaiah, 35, who was sandwiched between Jadhav and the cylinder on the one side and the MRI machine on the other, suffered serious injuries to the lower part of his body, including a punctured urinary bladder and severe internal bleeding.
(Excerpt) Read more at mumbaimirror.com ...
That doesn’t make sense, there had to be a circuit breaker somewhere that would kill power to the entire machine.
Once you get the system up to field, it doesn’t need power - the electrons keep flowing in a closed-system coil with zero resistance, continually generating a magnetic field, as long as you keep the coil cold enough to maintain superconductivity (which is what the liquid helium container does).
crazy
hit the off switch!
They are lucky no one was killed.
+ P
+ M
(actually 7 eqns for 7 unknowns and the Lorentz eqn for grins and giggles.)
Killing the power doesn’t work. You have to quench the magnet. As others have repeated, the quench button malfunctioned.
Incidentally, where I work a quench is about a $50,000 event.
Sponsoring FReepers are contributing
$10 Each time a New Monthly Donor signs up!
Get more bang for your FR buck!
Click Here To Sign Up Now!
20 years ago I went in for an MRI on my knee. They checked me for glasses, rings, etc.and then asked my job. Machinist. Hold it, stop! They pulled every tiny sliver and shaving from my hands with tweezers and magnifying glasses and examined my eyes closely for metal particles. They said the metal might pop out or it might head in deeper, depends on which way the pull was.
Being 6’5” and wide shouldered, it was a chore folding me like a taco to insert me into that coffin. Then the banging and humming and vibrations stared and I was asleep in minutes. They had to yell into the speaker to wake me and turn me for more pictures.
well, there was one great big honking metal detector in the center of the room and detect it did!
Surf the waves.....
I made sure they checked my eyeballs first too. Otherwise it'd be like a blender running in each.
I'm sure India would benefit from some of that......
Imagine doing a quench test on a whole string of superconducting super collider magnets. We did this at the SSCL in the early 90's.
Quaternions up!
Were they really stuck 4 hours, or was that relative to their wrist watches accelerating the closer they approached the resonant frequency of their oscillators?
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.