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Detectors designed to sense a blow to the head that may cause a traumatic brain injury altering the way that the brain functions (i.e., a concussion). These detectors typically consist of a wearable device that is directly attached to the head or used in a helmet. The detector typically includes an impact sensor (e.g., accelerometer), a battery, and electronic circuits that process the intensity of the impact and assess the possibility of an associate concussion, delivering an alarm signal that is showed either directly on the device (e.g., LED light) or using a wireless link in a remote station. The detectors may also record the total number of impacts suffered by the user. Head concussion and brain injury detectors are mainly used for people practicing contact sports or other activities that increase the risk of head impacts.
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