Understanding electromagnetic safety
Tens of thousands of patients worldwide rely on Boston Scientific technology for life-changing medical solutions, implants, and pain relief therapies.
The goal of subcutaneous and transvenous implantable defibrillators (ICD and S-ICD) is to get you back to the things you enjoy in everyday life. Understand the facts about electromagnetic interference and your device to stay safe in every situation.
All items that use electricity or transmit wireless signals have invisible electromagnetic fields around them that may temporarily interfere with your device. This is called electromagnetic interference, or EMI for short.
Boston Scientific ICDs and S-ICDs devices are designed to work properly around most appliances and tools. However, some appliances and tools may affect how your device works. While these effects are usually temporary, we recommend using the following guidelines for safe interaction with many common household items.
Your device has built-in features that protect it from interference from most electrical or wireless household items. However, some electrical and wireless items must be kept a certain distance away from your implanted device to avoid interaction with your device.
Know the sound
An ICD device may deliver a beeping sound to let you know you are near a large magnet or source of EMI.
Safety ratings
Avoid use
Use with caution
Safe to use
Household tools that are not safe for use
The following items are not safe to use if you have an ICD or S-ICD device:
Avoid use
Avoid use
Avoid use
Avoid use
Household tools that are safe to use at a distance (use with caution)
If you use any of the following items, it’s important to keep them the recommended distance away from your implanted device to avoid interaction.
Items that should not be placed directly over your ICD or S-ICD, but are otherwise safe to use
Use with caution
Use with caution
Use with caution
Use with caution
While portable MP3 players themselves should not interfere with your ICD or S-ICD, the headphones or earbuds should be stored at least 6 inches (15 cm) away from your device and you should avoid draping the headphones around your neck.
Items that should remain at least 6 inches (15 cm) away from your ICD or S-ICD
Use with caution
Use with caution
Use with caution
It is safe to use headphones and earbuds, but you should refrain from draping them around your neck and from storing them in a breast or other shirt pocket.
Use with caution
Items that should remain at least 12 inches (30 cm) away from your ICD or S-ICD
Use with caution
Use with caution
Use with caution
Use with caution
Use with caution
Use with caution
Use with caution
Use with caution
Use with caution
Use with caution
Items that should remain at least 24 inches (60 cm) away from your ICD or S-ICD
Use with caution
Use with caution
Use with caution
Avoid leaning over running motors and alternators of a running vehicle. Alternators create large magnetic fields that can affect your implanted device. However, the distance required to drive or ride in a vehicle is safe.
Household tools that are safe under normal use
The following household items are generally safe to use with ICDs and S-ICDs as long as they are in good working condition and used as intended:
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Consult with your doctor before using a hot tub. While a hot tub will not harm your implanted device, your medical condition may not permit this activity.
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
PDAs that also function as cell phones should be kept at least 6 inches away from your ICD or S-ICD.
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Safe for use
Using cell phones safely
Your cellular phone is a source of EMI and could affect your ICD or S-ICD’s operation. This interaction is temporary, and moving the phone away from your device will return it to proper function. To reduce the chance of interaction, follow these precautions:
- Maintain a distance of at least 6 inches (15 cm) between the cell phone and your device. If the phone transmits more than 3 watts, increase the distance to 12 inches (30 cm)
- Hold the cellular phone to your ear on the opposite side of your body from your ICD or S-ICD
- Do not carry a cell phone in a breast pocket or on a belt if that places the phone within 6 inches (15 cm) of your device
These precautions apply only to cell phones, not to household cordless phones. However, you should avoid placing your household cordless phone receiver directly over your ICD or S-ICD.