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MRI Safety Products

Frank Shields : Ferro Alert.

MR Scanners generate an enormously strong magnetic field which, because of the significant Technical and economic hurdles in generating the magnetic field, is never purposely turned off, but is always in the 'on' condition, 24-7 (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, or even floor buffers toward the magnet. Worse, if they are brought within a few feet of the scanner, the magnetic field is so strong that It can actually lift hundred pound objects off the floor and pull them, as airborne projectile missiles, to the inside bore of the scanner, accelerating to over 60 mph. Personnel and patients in the path of the object or inside the bore of the scanner are at grave risk if this happens. Such accidents have led to numerous "close calls", many injuries to patients and personnel, and even death. Although obviously not as important as the human safety aspects, these objects almost always damage the MR scanner as well.

Ferrous based materials, most stainless steel materials are not compatible with the MRI environment when these materials are exposed to strong magnetic field of the MRI Machine, they will be pulled violently towards the bore of the magnet with great force and speed resulting in injury or damage to the equipment.

For this every individual and the materials must be screened for the potential threat to safety prior to entering to the MRI room.

Frank Shields Markets a Product

Frank Shields markets a product from a leading vendor in the field of ferromagnetic detectorThis product can be tailored to fit into pre-existing doorways or operated free standing walk through devise similar to metal detectors prevalent in airports. This devise can detect objects as small as hairpins and also alerts the screener as to location of the object. Testing of "FerrAlert Halo" revealed that 44.3% of patients already prescreened were identified by halo as still possessing ferrous object on or in them.
FerrAlerttm HaloII Ferromagnetic Detector System primarily consists of an array of sensors and microprocessors built into a walk-through Sensor Array Portal
The detector continuously analyzes objects on patients or personnel near the portal. As the ferrous object approaches the detector sensor array portal, it determines what the objects potential risk is as a ferromagnetic projectile threat.
If an object made of ferromagnetic material approaches the sensor array portal, the system detects the objects ferrous content, analyzes its ferromagnetic mass and threat potential and, if it exceeds the preset threshold, Pre-Warning ferrous object indicator LEDs are illuminated in the cross bar.
If the object passes through the portal an audio alarm is activated as well as the vertical LOCATION LED lights in the columns of the portal.
Since the device detects only those materials that will be attracted to the MR magnet, aluminum, titanium, copper, brass and other non-ferrous containing materials will not trigger an alarm.
The detector only analyzes moving / dynamic objects containing ferromagnetic material, which allows stationary / static ferromagnetic objects (such as a nearby desk) to be ignored since they are not threats.
It is recommended to be installed at the approach to the MR magnet room, just inside the door on the door frame.
It is intended to detect and alarm if larger ferromagnetic objects or equipment such as oxygen bottles, IV poles, and ferrous pellet loaded "sand bag", etc. are about to enter the magnet room (Zone IV).
Unlike other types of detectors, FerrAlerttm HaloII does not emit an electromagnetic field to detect ferrous objects. Also, normal electrical signals from other devices not in the "threshold area" will not trigger an alarm.
Our complementary product, FerrAlerttm Solo Ferromagnetic Detector System is intended to detect and alarm when very small ferrous objects, typically hair pin size and larger, are found On ambulatory personnel entering Zone III.
When used together, the risk is further reduced for personnel or patients bringing undiscovered objects that can become dangerously attracted to the magnet.

Ferr Alerttm SOLO

FerrAlerttm SOLO is a highly sensitive device that detects very small ferrous objects, down to the size of a typical hairpin. SOLO is in a passive mode until a person steps within the Passive Infrared (PIR) "cone" as both motion and body heat must be present to activate the SOLO. The recommended placement for this device is near the patient screening or changing area, away from the magnet room, so the patient does not have to walk far to remove a ferrous object. The person being screened walks up to the SOLO, makes a 3600 turn, and walks away; or, if the outpatient has musculoskeletal problems, the patient can sidestep across the SOLO, turn around, and sidestep back. Either technique gives you the security that all sides of the person being screened are covered. FerrAlert SOLO is intended for use with outpatients, family members accompanying the patient into the magnet room, and even the MRI and/or hospital staff to detect small ferrous objects.
FerrAlert SOLO offers our unique FOIL (Ferrous Object Indicator Lights) prewarning which alerts the technologist that the person approaching the FerrAlert SOLO is carrying or wearing a ferrous object when a set of 1 to 8 blue lights appear at the top of the unit.

Instantly Pinpoints location of the ferromagnetic object, allowing Technologist to quickly identify and remove the ferromagnetic threat,NO invasive pat-down required. 12 location-accurate sensors for uniform sensitivity, reliability and usability. No-Touch Activation safeguards against cross-contamination.
Consistent, unambiguous and simple Self-Screening or Supervised Screening.
Constantly monitors the ambient magnetic field and provides early visual warning of approaching ferromagnetic items.
Elegant, Small Footprint Installation.
Additionally available as a portable, battery-powered system to suit any facility needs.
Integrates easily into any established screening procedures.
Inexpensive, affordable for all MRI facilities.s
Conforms to ES60601-1-8 international standards for medical device alarms (Does not cause alarm fatigue. No RED alarm lights, as color RED must be used ONLY in life threatening Situations).
Conforms to IEC 60101-1:2005 medical device specification requirements (Ferromagnetic detectors are not considered to be medical devices; however, they are an integral part of the medical environment. As such, it is highly important that the power supply used in the detectors complies with standards for medical equipment used by the FDA, UL, as well as agencies around the world).

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