SELF-AUTHENTICATING ELECTROCARDIOGRAPHY MONITORING CIRCUIT

摘要

Physiological monitoring can be provided through a wearable monitor (12) that includes two components, a flexible extended wear electrode patch (15) and a removable reusable monitor recorder (14). The monitor (12) sits centrally (in the midline (16)) on the patient's chest along the sternum (13) oriented top-to-bottom. The placement of the monitor (12) in a location at the sternal midline (16) or immediately to either side of the sternum (13)) benefits extended wear by removing the requirement that ECG electrodes be continually placed in the same spots throughout the monitoring. Instead, the patient can place a patch (15) anywhere within the general region of the sternum (13). Ensuring that the quality of ECG recording remains constant over an extended period is provided through self-authentication of patches (15). The recorder (14) implements a challenge response scheme upon being connected to a patch (15). Failing self-authentication, the recorder (14) signals an error.