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11. What about wireless phone interference with medical
equipment?
Radiofrequency energy (RF) from wireless phones can interact with
some electronic devices. For this reason, FDA helped develop a
detailed test method to measure electromagnetic interference (EMI)
of implanted cardiac pacemakers and defibrillators from wireless
telephones. This test method is now part of a standard sponsored by
the Association for the Advancement of Medical instrumentation
(AAMI). The final draft, a joint effort by FDA, medical device
manufacturers, and many other groups, was completed in late 2000.
This standard will allow manufacturers to ensure that cardiac
pacemakers and defibrillators are safe from wireless phone EMI.
FDA has tested hearing aids for interference from handheld wireless
phones and helped develop a voluntary standard sponsored by the
Institute of Electrical and Electronic Engineers (IEEE). This standard
specifies test methods and performance requirements for hearing
aids and wireless phones so that that no interference occurs when a
person uses a “compatible” phone and a “compatible” hearing aid at
the same time. This standard was approved by the IEEE in 2000.
FDA continues to monitor the use of wireless phones for possible
interactions with other medical devices. Should harmful interference
be found to occur, FDA will conduct testing to assess the
interference and work to resolve the problem.
12. Where can I find additional information?
For additional information, please refer to the following resources:
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