MRI protector
OwnerKeith A. Koppinventor
Life of this patent
Estimating the term…
Abstract
An MRI protector for protecting personnel and the MRI apparatus from the introduction of ferrous articles into the magnetic field of the MRI has an array of Hall effect sensors oriented to scan the magnetic field of the MRI. The Hall effect sensors are oriented to scan the magnetic field at the access door of the shielded MRI room. The sensors are connected to a central processing unit (CPU) which analyses the output of the sensors and propagates a warning when the presence of ferrous articles affects the magnetic field of the MRI.
Claims16
An access opening in a shielded room housing an MRI apparatus, said opening having a doorway, a detector adapted to be mounted at the access doorway, said detector comprising an array of Hall effect sensors each having an output, said sensors oriented to scan the magnetic field generated by the MRI apparatus and passing through the access doorway, said sensors detecting the introduction of ferrous articles into said magnetic field, the outputs of said sensors connected to an alarm system, said alarm system generating a warning to personnel.
An access opening in a shielded room housing an MRI apparatus, said opening having an access doorway, a detector adapted to be mounted at the access doorway, said detector comprising an array of Hall effect sensors each having an output, said sensors oriented to scan the magnetic field generated by the MRI apparatus and passing through said access door, said sensors detecting the introduction of ferrous articles into said magnetic field, the outputs of said sensors connected to an alarm system, said alarm system including a scan disable mode, said alarm system generating a warning to personnel.
Dependencies are inferred from the claim text.