PROVIDING MEDICAL DEVICES WITH SENSING FUNCTIONALITY

Auxiliary components for medical devices, and more specifically, sensing constructs that may be added to a medical device such as an implantable medical device to provide the medical device with sensing functionality. The auxiliary component is nota part of the medical device, but rather is associated with an existing medical device in a secure manner, and provides information about the medical device and/or the environment around the medical device when the device is implanted in a patient, and then transmits that information to a location outside of the patient for evaluation.