That depends entirely upon the gun. On a series 70 style 1911, the safeties only prevent the trigger from moving — they don’t prevent the firing pin from moving.
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Woman Shot In Butt After Sliding Into MRI Machine With Loaded Firearm
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Not in MA.
I was in one hospital in Orlando that did have metal detectors at the entrance.
eboos
NES Member
The safety lever on a series 70 blocks the hammer or the sear disengaging from the hammer (don't remember specifically which). While it wouldn't have a firing pin safety, the firing pin would still have to travel with enough momentum to not only overcome the firing pin spring but also to strike the primer with enough force to set it off unassisted by the movement of the hammer.
GL2020
NES Member
Yeah well mine are always a brain/pituitary scan. They do it with contrast and there's usually a cat-scan too. Precautionary at this point..down to once every 5 years now
Just assumed that was the protocol everywhere
Ron Jablonski
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Same here, I recently had an MRI done on my knee and they let me keep my shorts on, just made me take metal stuff out of my pockets. They said the button and zipper didn't matter.
GL2020
NES Member
Can only speculate, but best guess is the strong magnetic attraction moved the gun in such a way that something pressed the trigger. Maybe she did accidentally trying to hold it from flying away. Who knows. The field is incredibly strong. My sister is an MRI tech and still regrets day she wore an underwire bra to work.
I believe that the safety lever prevents the sear from moving and the grip safety prevents the trigger bow from moving. It doesn’t take much of a drop on the muzzle for a 70 series with a standard steel firing pin and firing pin retaining spring to discharge — less than 5’ if I recall correctly.
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I would assume either the firing pin got pulled through the release or it detached the release
Im not sure there is enogh metail in anything but a 1911 for the magnet to impact that
RumRunner
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I know, but that didn't fit my joke
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In a "mere" 3 tesla magnetic field , I think if you have a piece of metal it will push with around 500 PSI, you get a force something maybe like under the tire of a car running over your foot. Easy to see how it might pull a trigger.
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Am I the only one who’s starting to see a trend?
Post in thread 'Clown World'
https://www.northeastshooters.com/xen/threads/clown-world.414440/post-8314241
Post in thread 'Clown World'
https://www.northeastshooters.com/xen/threads/clown-world.414440/post-8314241
Chevy 2 65
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Even if there was an engaged safety, with those fields swirling around (they aren't fixed if I understand the systems correctly), the safety could get "swiped" off on one pass of the magnet and then the trigger pulled on the next pass ... all bets are off once you're inside a magnetic chaos machine like that.
Rocky Mosasaurus
NES Member
Not the case here: "MRI has three types of fields: Static main magnetic field, gradient fields and radiofrequency (RF) fields. There are potential risks associated with each field. Static Magnetic field: The potential hazard concerning the static field is the missile effect."
The Missile Effect. The “missile effect” refers to the capability of the MRI magnetic field to attract a ferromagnetic object into the scanner with considerable force. The “missile effect” can pose a significant risk to a patient in the scanner and to anyone who is in the path of the attracted object.
Furthermore, that magnetic field is directed TOWARDS the rear of the apparatus within the cylindrical bore.
For more information:
- The static magnetic field B0 of clinical MRI scanners that ranges from 0.2T to 3T [15–17]. B0 is orders of magnitudes larger than the magnetic field of the earth and can torque, attract and accelerate ferromagnetic objects in direction of the opening of the bore of an MRI scanner. B0 can also interfere with implanted devices such as pumps and pace makers [18–26,1,27,28,2,29,30,15,31,12,16,32–47,7,48–62,11,63–73].
- The radiofrequency (RF) field B1 that is in the order of μT [74,30] and is produced by RF-coils. It can potentially cause tissue heating, especially when implants are present [19,75–89,16,90–100,4,101–103,10,104–116,69,117].
- The magnetic field gradients with amplitudes in the order of 100 mT/m and with slew rates up to 200 mT/m/ms [63,118]. The fast switching gradient fields are applied for spatial encoding of the MRI signal and can cause peripheral nerve stimulation and implant heating. They are also responsible for the noise in the MRI scanner room, which can reach levels of 100 dB or more and potentially lead to hearing damages [74,119–121,118,122–126,30,31,127,128,16,90,129,37,130–133,57,58,134,135,69]
Sources:
Magnetic Resonance Safety
Magnetic Resonance Imaging (MRI) has a superior soft-tissue contrast compared to other radiological imaging modalities and its physiological and functional applications have led to a significant increase in MRI scans worldwide. A comprehensive MRI safety ...
www.ncbi.nlm.nih.gov
MR magnet types
There seem to be many different MRI magnets and designs. Can you explain?mriquestions.com
Lank
NES Member
We have 7 T's at work
Lank
NES Member
Wrong Sir- 9mm are specifically designed to blow the lung out
This, except scrubs instead of a johnny.
I can (barely) get through a 45 minute MRI in a 1.5, but it feels like I've got bugs crawling on me for the last 15 minutes or so. I've already told my doctor that if he wants to use the 3.0, it's going to involve drugs. He deals with the lower resolution as a result.
Glockster30
NES Member
Sauer Grapes
NES Member
Shield’s MRI has AI scanners at some locations. The exams are much faster than conventional.I had my lumbar spine scanned recently and it took about 15 or so minutes. I still had the weird tingling, creepy crawling sensation known as peripheral nerve stimulation. Some people just get it…it’s nothing to worry about.
Oh, in my case the crawling is purely imaginary as the result of being confined in the tube. Unfortunately, an open MRI apparently doesn't result in the resolution my doctor is looking for (long term monitoring of a specific condition), so I get the tube.
I had to do some work in a MRI room. The tools they gave me to use were made out of I think titanium and plastic. I needed a very small screwdriver and snuck it a very small regular steel one and held on with two hands. I was able to successfully use it because the manufactures rep that escorted me in had steel wool in a sock with a 1/4” rope tied off to demonstrate where the magnetic field is strongest.
Knob Creek
NES Member
I’ve had a rough week. This is the funniest thing I’ve heard today.
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