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Defibrillators device support

Using household devices and tools

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 transvenous and subcutaneous implantable defibrillators (TV-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 TV-ICD and S-ICD 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.

Listen to the sound

Safety ratings

Avoid use

Use with caution

Safe to use

For detailed information on items categorized as Avoid use or Use with caution, go to this detailed EMI Guide here.

Household tools that are not safe for use

The following items are not safe to use if you have a TV-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 TV-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 TV-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 TV-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 TV-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 TV-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 TV-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 TV-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 TV-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 TV-ICD or S-ICD.

We’re here to help

Our patient services team is here to support you throughout your journey.

(866) 484-3268

Implantable Cardioverter Defibrillators
Important Safety Information

An implantable cardioverter defibrillator is designed to monitor and treat heart rhythm problems, greatly reducing the risks associated with them. These devices are sensitive to strong electromagnetic interference (EMI) and can be affected by certain sources of electric or magnetic fields. Some of the risks encountered during the implant procedure include, but are not limited to, the following: Bleeding, formation of a blood clot, damage to adjacent structures (tendons, muscles, nerves), puncture of a lung or vein, damage to the heart (perforation or tissue damage), dangerous arrhythmias, heart attack, stroke, death. Some of the risks encountered after the ICD system is implanted may include, but are not limited to, the following: Infection, erosion of the skin near your device, lead(s) may move out of place in the heart, device may move from the original implant site, difficulty coping with having an implanted device. The device might be prevented from shocking or pacing due to electromagnetic interference. Electrodes on the lead or the pacing pulses may cause an irritation or damaging effect on the surrounding tissues, including heart tissue and nerves. You may receive a shock or pacing therapy when it is not needed (unnecessary therapy). The device might not be able to detect or appropriately treat your heart rhythms. The device may exhibit malfunctions that may result in lost or compromised ability to deliver therapy. You may experience some discomfort from the incision as you recover from the surgery. With all medical procedures there are risks associated. In rare cases device failure or death can occur. Be sure to talk with your doctor so that you thoroughly understand all of the risks and benefits associated with the implantation of this system. To obtain a copy of the device Patient Handbook for more detailed device safety information, go to www.bostonscientific.com, or you can request a copy by calling 1-866-484-3268 or writing to Boston Scientific, 4100 Hamline Ave. N., St. Paul, MN 55112. Rx only

S-ICD™ System
Important Safety Information

An implantable cardioverter defibrillator is designed to monitor and treat heart rhythm problems, greatly reducing the risks associated with them. These devices are sensitive to strong electromagnetic interference (EMI) and can be affected by certain sources of electric or magnetic fields. As with all ICD systems, there are risks associated with the S-ICD System. Some of the risks that may be encountered during the implant procedure include the following: Formation of a blood clot; damage to adjacent structures (tendons, muscles, nerves); injury to or pain in upper extremity including clavicle, shoulder, and arm; dangerous arrhythmias; stroke. After the system is implanted, other infrequent risks may occur, including: Infection; erosion of the skin near your device; electrode and device may move out of place; fainting (syncope); delivery of a shock or therapy when it is not needed (unnecessary therapy); inability to detect or appropriately treat your heart rhythms due to electromagnetic interference or malfunction; difficulty coping with having an implanted device; bleeding or formation of a blood clot (hematoma); pain and discomfort; injury to or pain in upper extremity including clavicle, shoulder, and arm; allergic reaction; need for surgical replacement. You may experience some discomfort from the incision as you recover from the surgery. In rare cases severe complications can occur, such as device failures or death. Your physician should discuss all potential benefits and risks with you and describe the appropriate medical care. Refer to the product labeling for specific indications, contraindications, warnings/precautions and adverse events. Rx only

Device Quality and Reliability

It is Boston Scientific’s intent to provide implantable devices of high quality and reliability. However, these devices may exhibit malfunctions that may result in lost or compromised ability to deliver therapy. Refer to Boston Scientific’s CRM product performance report on www.bostonscientific.com for more information about device performance, including the types and rates of malfunctions that these devices have experienced historically. While historical data may not be predictive of future device performance, such data can provide important context for understanding the overall reliability of these types of products. Also, it is important that you talk with your doctor about the risks and benefits associated with the implantation of a device. 

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