A multi-wavelength PPG system and method configured with optimized mechanical configuration for a chest-worn device for electrocardiogram and multi-wavelength photoplethysmogram acquisition. The multi-wavelength PPG system includes an electrocardiogram sensing assembly having two or more electrodes configured to mount the chest-worn device to the subject's chest. The multi-wavelength photoplethysmogram sensing assembly is located in between the electrocardiogram sensing electrodes to be maintained at the optimal sensing location by the mounting of the electrocardiogram sensing electrodes. The multi-wavelength photoplethysmogram includes one or more additional PPG emitters to provide additional information that can be employed to assess the quality of a signal acquisition with respect to movement artifacts, e.g., to reduce motion artifacts and/or provide accurate target data segments of higher signal quality having improved accuracy for SpO2 estimation.

Embodiments of the present disclosure provide an electrode structure including: a plurality of electrodes. Each of the plurality of electrodes is flexibly connected to at least another of the plurality of electrodes through a connector. The connection member allows electrically conduction of the connected electrodes. Electrode structures provided by embodiments of the present disclosure have a great elasticity coefficient range, and the electrode structures are adjustable.

Embodiments of the present disclosure provide an electrode structure including: a plurality of electrodes. Each of the plurality of electrodes is flexibly connected to at least another of the plurality of electrodes through a connector. The connection member allows electrically conduction of the connected electrodes. Electrode structures provided by embodiments of the present disclosure have a great elasticity coefficient range, and the electrode structures are adjustable.

An emergency cardiac and electrocardiogram (ECG) electrode placement device is disclosed herein. The emergency cardiac and electrocardiogram (ECG) electrode placement device incorporates electrical conducting materials and elastic material into a pad that is applied to a chest wall of a patient, which places multiple electrodes in the appropriate anatomic locations on the patient to quickly obtain an ECG in a pre-hospital setting.

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.

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.

A multifunction electrode pad with integrated 12-Lead ECG acquisition is disclosed herein. The electrodes are incorporated into the two defibrillation electrode pads. Each of the sternum defibrillation pad and the apex defibrillation pad is composed of an electrical conductive plates in a foam tape substrate with a hydrogel layer. Each of the sternum pad and the apex pad has defibrillation electrode pad conductor surface has an area ranging from 80 cm.sup.3 to 90 cm.sup.3.

The present invention provides a stretchable and flexible multi-leads ECG monitoring apparatus having a primary circuitry encased in a thin and flexible polymer patch configured to be worn on a human body. At least four flexible leads are connected to the primary circuitry at a first end and are configured to be connected to ECG electrode patches at a second end. The ECG electrode patches being configured to be attached to a plurality positions on a human body. The wireless transmitter is configured to transmit the ECG monitoring signals to a receiving device for recording or displaying the ECG monitoring signal.

The present invention provides a stretchable and flexible multi-leads ECG monitoring apparatus having a primary circuitry encased in a thin and flexible polymer patch configured to be worn on a human body. At least four flexible leads are connected to the primary circuitry at a first end and are configured to be connected to ECG electrode patches at a second end. The ECG electrode patches being configured to be attached to a plurality positions on a human body. The wireless transmitter is configured to transmit the ECG monitoring signals to a receiving device for recording or displaying the ECG monitoring signal.

An emergency cardiac and electrocardiogram (ECG) electrode placement device is disclosed herein. The emergency cardiac and electrocardiogram (ECG) electrode placement device incorporates electrical conducting materials and elastic material into a pad that is applied to a chest wall of a patient, which places multiple electrodes in the appropriate anatomic locations on the patient to quickly obtain an ECG in a pre-hospital setting.