the device, stop recharging and contact your doctor. Do not place the charger over an
area of skin where you do not feel any sensation.
Electromagnetic Interference (EMI)
– Ordinary household appliances, magnets, and
devices encountered in everyday life will not affect your implanted Senza device.
However, some equipment generates electromagnetic interference (EMI) which may
affect your Senza system.
ELECTROMAGNETIC INTERFERENCE (EMI). Invisible signals generated by some
equipment, appliances, and devices, also known as noise or static. Even if you cannot
hear this noise, it may be picked up by your implanted SCS system and can affect it.
Electromagnetic interference (EMI) can affect the implanted Senza system in ways
that are hard to predict. For example, EMI might:
• Turn your Senza system ON or OFF
• Cause your Senza system to give you more stimulation (a “shock”)
• Cause damage to the system that may result in loss of therapy and require
reoperation to replace the system
There are many sources of EMI today so it is not possible to give exact instructions as
to how to avoid them. Listed below are some well-known sources of EMI that you
should avoid:
• Power lines and power generators
• Arc welders
• Large, magnetized stereo speakers
• Radiofrequency identification devices (RFID)
Exposure to strong EMI can result in serious patient injury or death, resulting from
heating of the implanted components of the SCS system and damage to the
surrounding tissue.
Theft Detectors and Security Screening Devices
– Security checkpoints, metal
detectors, screening systems at airports, and theft detectors all produce EMI. If you
must pass through such a system, tell the personnel that you have an implanted
medical device and show them your patient ID card. They may be able to help you get
through the checkpoint without going through the scanner. If that is not possible, you
may be able to pass through the scanner or detector by turning the device OFF and
moving through the scanner as quickly as possible.
Patient Manual 11052 Rev A (2015-01-16) 10
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