MAGSTIM RAPID2 Operating Manual page 5

Magstim Rapid
2
Coil Over
Temperature
~cf. %
__ j
5
3576-23-09
Do not discharge the Stimulating Coil in the vicinity of objects sensitive to magnetic fields.
Examples are credit cards, floppy disks and computer screens.
Protection circuits disable the equipment if the temperature of the Stimulating Coil exceeds
40°C.
Coils must not be immersed in water, put in an ice bucket, or refrigerated, even if placed
within a plastic bag, as condensation may be created within the coil. The coils do not have any
specialised protection against the ingress of liquids; therefore conditions ,vhere ingress of
liquid, or the forming of condensation within the coil, can occur must be avoided as the
electrical insulation will be compromised. Cooling must only be performed by using a flow of
cool air from a fan or air conditioning unit.
Due to thermal lag, the surface temperature of the Stimulating Coil may continue to rise
following the coil over-temp activating and forcing the main unit into a standby condition.
Therefore, the Coil must be removed from the patient as soon as the UI indicates that the coil
is over-temperature.
If the Rapid system is externally triggered via a signal generator, the coil temperature
algorithm is disabled. Under this condition, at high frequency/high power, it is possible for the
coil temperature to reach levels well in excess of the 41°C limit specified in EN60601-L
before the hardware temperature cut-out operates. If the system is to be used m1der these
conditions, it is essential that the intended protocol be run prior to use on a patient, to ensure
that its temperature remains within the required limit.
There are cun-ently few medical papers available regarding the effects of magnetic stimulation
on the unborn child! foetus or the expectant mother. As a result of this, we are unable to verify
the safety of the Coil's use on, or by, pregnant vrnmen. We rec01mnend that anyone wishing to
use the Coil on a pregnant woman, or use it whilst pregnant, should contact the Magstim
Company Ltd. for more information as new medical papers become available.
On no account must the Magstim Rapid 2 and its accessories be used in
environmental conditions outside those specified in this operating manual.
No pins of connectors identified with the ESD warning symbol should be touched. The
connectors involved are those to be found on the rear of the User Interface. Connections
should not be made to these connectors unless ESD precautionary procedures are used. All
staff responsible for using the l\fagstim Rapid 2 System should receive an explanation of the
ESD warning symbol and receive training in ESD precautionary procedures -
Connection should be made only by a person who is wearing a conductive wrist strap, which
is connected to a suitable tested earth connection, or following the person grounding
themselves by touching a part of the external casing connected to protective earth.
The l\'IAGSTIM Company LTD
2
November 2009