ISO 14117: EMC test protocols for implantable cardiac pacemakers, implantable cardioverter...
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The number and the types of electromagnetic (EM) emitters to which patients with active implantable cardiovascular devices are exposed in their day-to-day activities have proliferated over the past two decades. This trend is expected to continue. The interaction between these emitters and active implantable cardiovascular devices (pacemakers and implantable cardioverter defibrillators, or ICDs) is an ongoing concern of patients, industry and regulators, given the potential life-sustaining nature of these devices. The risks associated with such interactions include device inhibition or delivery of inappropriate therapy that, in the worst case, could result in serious injury or patient death.
In recent years, other active implantable cardiovascular devices have emerged, most notably devices that perform the function of improving cardiac output by optimizing ventricular synchrony, in addition to performing pacemaker or ICD function.
Although these devices can deliver an additional therapy with respect to pacemakers and ICD devices, most of their requirements concerning EM compatibility are similar so that, in most cases, the concepts that apply to pacemakers also apply to CRT-P devices, and the appropriate way to test a CRT-P device is similar to the way pacemakers are tested. Similarly, the concepts that apply to ICD devices mostly apply to CRT-D devices as well, so the appropriate way to test a CRT-D device is similar to the way ICD devices are tested.
Standard test methodologies allow manufacturers to evaluate the EM compatibility performance of a product and demonstrate that the product achieves an appropriate level of EM compatibility in uncontrolled EM environments that patients may encounter.
It is important that manufacturers of transmitters and any other equipment that produces EM fields (intentional or unintentional) understand that such equipment may interfere with the proper operation of active implantable cardiovascular