ESCO Technologies ETS-LINDGREN SuiteSentry, Руководство по эксплуатации и установке

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1.0 INTRODUCTION & OVERVIEW
SuiteSentry™ Single Screener is a revolutionary patented Ferromagnetic Detector (FMD) system
designed to help keep ferromagnetic material from accidentally entering the Magnetic Resonance
Imaging magnet room. The system primarily consists of an array of sensors and microprocessors
built into a walk-up Sensor Array Column.
This product is intended to reduce the risk from an ordinary object that might suddenly become an
unintended projectile due to its attraction to the magnetic field of the MR scanner magnet.
SuiteSentry Single Screener incorporates the following features:

Accurately and Rapidly Locates Ferromagnetic Hazards Anywhere on the Body

Uniform Sensitivity with Six (6) Sensor Zones placed equidistant in the Sensor Array
Column

No-Touch Activation for the ultimate in convenience and hygiene

Highly Sensitive - Can detect small items down to hairpin size

Used to Self-screen or for Supervised Screening

Variety of Simple Installation Options
1.1 Background
MR Super-Conducting Scanners generate an enormously strong magnetic field, typically 30,000 to
60,000 times the Earth’s magnetic field. Due to the significant technical and economic hurdles in
generating the magnetic field, it is never purposely turned off; it is always in the ‘ON’ condition, 24
hours a day, 7 days a week. This extremely powerful magnetic field, invisible but ever-present,
continuously attracts anything which is ferromagnetic (generally containing iron or steel). It can and
will attract and pull any ferromagnetic object such as hand tools, oxygen bottles, scissors, chairs,
IV stands, and even floor buffers toward the magnet.
1.2 The Current Situation
All personnel who may come in close proximity of the MR scanner, within the four (4) progressively
restricted zones of danger, are supposed to receive training about the risks the MRI magnetic field
presents, what kind of objects contain ferromagnetic material, and therefore the danger of bringing
these materials in close proximity to the magnet. Since the MR static fields is never shut down, this
must include maintenance and security personnel who may come in close proximity during non-
scanning hours.
The patient procedures adopted in operating these MR devices have evolved into a careful pre-
screening of patients to make sure they do not have anything on their person or active/passive
implants in their person, which would be attracted by the very strong magnetic field; and, in the case
of some heart pacemakers or defibrillators, potentially have their function changed by the scanner’s
magnetic field.
Even with training and copious use of warning signs, people forget or are unaware that an object
may contain ferromagnetic material, thereby increasing the risk of a disaster.
Even small ferrous objects pose a risk of injury. A hairpin, for example, can travel at 40 MPH into a
1.5T magnet. Larger objects have injured and even caused fatalities.
Even if no injury occurs, the financial costs from downtime and re-imaging can be very large.