Embodiments of the present disclosure provide a mobile electrocardiogram (ECG) sensor comprising an electrode assembly comprising electrodes, wherein the electrode assembly senses heart-related signals when in contact with a body of a user, and produces electrical signals representing the sensed heart-related signals. The ECG sensor further comprises a processing device, operatively coupled to the electrode assembly, the processing device to provide the sensed heart-related signals to a machine learning module trained to predict a twelve-lead QT interval (QTc) value from the mobile ECG sensor comprising less than twelve leads. The ECG sensor also comprises a housing containing the electrode assembly and the processing device.

An electronic device and method are disclosed herein. The electronic device includes a memory, an electrode module including at least four electrodes respectively connectable to a human body, and at least one processor. The processor implements the method, including: when the at least four electrodes are connected to designated connection points on the human body, obtain contact impedance values from the at least four electrodes, set electrode combination information for respectively connecting the at least four electrodes with the designated connection points, based on the obtained contact impedance values, and store the set electrode combination information in the memory, and measure an electrocardiogram (ECG) based on signals received from the electrode module while the at least four electrodes are respectively reconnected to the designated connection points, based on the stored electrode combination information.

An electronic device and method are disclosed herein. The electronic device includes a memory, an electrode module including at least four electrodes respectively connectable to a human body, and at least one processor. The processor implements the method, including: when the at least four electrodes are connected to designated connection points on the human body, obtain contact impedance values from the at least four electrodes, set electrode combination information for respectively connecting the at least four electrodes with the designated connection points, based on the obtained contact impedance values, and store the set electrode combination information in the memory, and measure an electrocardiogram (ECG) based on signals received from the electrode module while the at least four electrodes are respectively reconnected to the designated connection points, based on the stored electrode combination information.

An implantable medical device and method are described that include a housing, a right ventricle (RV) near field (NF) electrode, a far field (FF) electrode, and sensing circuitry. The housing contains one or more processors. The RV NF electrode is electrically connected to the one or more processors and configured to be located within the RV of a heart of a patient and either in contact with ventricular myocardial tissue of the heart or within a threshold proximity of the ventricular myocardial tissue. The FF electrode is configured to be positioned beyond the threshold proximity of the ventricular myocardial tissue. The sensing circuitry is coupled to the RV NF electrode and the FF electrode and configured to define an atrial sensing vector to collect atrial sensing data associated with atrial cardiac activity. The one or more processors are configured to receive the atrial sensing data.

An implantable medical device and method are described that include a housing, a right ventricle (RV) near field (NF) electrode, a far field (FF) electrode, and sensing circuitry. The housing contains one or more processors. The RV NF electrode is electrically connected to the one or more processors and configured to be located within the RV of a heart of a patient and either in contact with ventricular myocardial tissue of the heart or within a threshold proximity of the ventricular myocardial tissue. The FF electrode is configured to be positioned beyond the threshold proximity of the ventricular myocardial tissue. The sensing circuitry is coupled to the RV NF electrode and the FF electrode and configured to define an atrial sensing vector to collect atrial sensing data associated with atrial cardiac activity. The one or more processors are configured to receive the atrial sensing data.

The present disclosure describes example devices and techniques for appropriately positioning a medical sensor to monitor a physiological parameter of a patient. A guide for placement of a medical sensor onto a patient includes a template having an upper edge, a lower edge, and a recess defined in the upper edge of the template. The recess includes a contour that matches a shape of a medical sensor such that the recess is sized to seat the medical sensor into the recess. The recess is displaced above the lower edge of the template by a defined distance corresponding to a clinical offset of the medical sensor above the patient's eyebrow.

The present disclosure describes example devices and techniques for appropriately positioning a medical sensor to monitor a physiological parameter of a patient. A guide for placement of a medical sensor onto a patient includes a template having an upper edge, a lower edge, and a recess defined in the upper edge of the template. The recess includes a contour that matches a shape of a medical sensor such that the recess is sized to seat the medical sensor into the recess. The recess is displaced above the lower edge of the template by a defined distance corresponding to a clinical offset of the medical sensor above the patient's eyebrow.

A medical device system includes a medical device, drive circuitry, and sense circuitry. The medical device includes a proximal end, a distal end, a pair of drive electrodes located at the distal end, and a first pair of sense electrodes located at the distal end, the first pair of sense electrodes being separate from the pair of drive electrodes. The drive circuitry is configured to provide a drive signal to the pair of drive electrodes. The sense circuitry is connected to the first pair of sense electrodes to sense a voltage generated in response to the drive signal provided to the pair of drive electrodes and to calculate a first tetrapolar measurement in response to the sensed voltage, the first tetrapolar measurement being indicative of tissue proximity, contact status, and/or orientation of the distal end of the medical device.

A medical device system includes a medical device, drive circuitry, and sense circuitry. The medical device includes a proximal end, a distal end, a pair of drive electrodes located at the distal end, and a first pair of sense electrodes located at the distal end, the first pair of sense electrodes being separate from the pair of drive electrodes. The drive circuitry is configured to provide a drive signal to the pair of drive electrodes. The sense circuitry is connected to the first pair of sense electrodes to sense a voltage generated in response to the drive signal provided to the pair of drive electrodes and to calculate a first tetrapolar measurement in response to the sensed voltage, the first tetrapolar measurement being indicative of tissue proximity, contact status, and/or orientation of the distal end of the medical device.

An electrode device for implantation in a subject, said electrode device comprising: a control unit arranged in a biocompatible package configured to protect the control unit from an implant environment; an electrode arrangement comprising electrodes for providing electrical signals to and/or acquiring electrical signals from a body part of the subject; a plurality of electrode leads, each configured to connect the control unit with a respective electrode and each being fixedly connected to the control unit; and an interface wire configured to connect the control unit to a powering device, wherein the interface wire is configured to provide power from the powering device to the control unit and communication between the control unit and the powering device. An implantable system comprises the electrode device and the powering device.