In accordance with some embodiments, systems, apparatus, interfaces, methods, and articles of manufacture are provided for ascertaining aspects of a user, such as the user's identity, competence, health, and state of mind. In various embodiments, data is captured about a user via a headset worn by the user. Based on the data, a determination may be made about an aspect of the user, and the user may accordingly be granted or denied access to a resource.

An apparatus includes an electrocardiograph device having first, second, and third, electrode assemblies with first, second, and third electrodes adapted to measure first, second, and third electrical signals of an individual, respectively. The apparatus further includes a processing device to: determine a Lead I from the first electrical signal and the second electrical signal; determine a Lead II from the second electrical signal and the third electrical signal; generate a Lead III using (Lead III=Lead II−Lead I); determine, using a machine learning model trained using measured twelve-lead ECG data, Leads aVR, aVL, aVF, V1, V2, V3, V4, V5, and V6 based on Lead I, Lead II, and Lead III; and provide Leads Lead I, Lead II, Lead III, aVR, aVL, aVF, V1, V2, V3, V4, V5, and V6 for display on a client device.

An apparatus includes an electrocardiograph device having first, second, and third, electrode assemblies with first, second, and third electrodes adapted to measure first, second, and third electrical signals of an individual, respectively. The apparatus further includes a processing device to: determine a Lead I from the first electrical signal and the second electrical signal; determine a Lead II from the second electrical signal and the third electrical signal; generate a Lead III using (Lead III=Lead II−Lead I); determine, using a machine learning model trained using measured twelve-lead ECG data, Leads aVR, aVL, aVF, V1, V2, V3, V4, V5, and V6 based on Lead I, Lead II, and Lead III; and provide Leads Lead I, Lead II, Lead III, aVR, aVL, aVF, V1, V2, V3, V4, V5, and V6 for display on a client device.

A catheter has a distal assembly with at least one loop with ring electrodes. A single continuous puller wire for bidirectional deflection is pre-bent into two long portions and a U-shape bend therebetween. The U-shape bend is anchored at a distal end of a deflectable section which is reinforced by at least one washer having at least two holes, each hole axially aligned with a respective lumen in the deflectable section. Each hole is centered with a lumen so that each puller wire portion therethrough is straight and subjected to tensile force only. A proximal end of the support member is flattened and serrated to provide a better bonding to the distal end of the deflectable section.

A method of processing of electrocardiogram includes the steps of providing an electrocardiogram comprising signals in at least two channels; selecting at least two frequency ranges of the signal in each of the said at least two channels; calculating an envelope for the signal in each frequency range in each channel; dividing the calculated envelope of the signal in each frequency range in each channel into QRS complex segment envelopes; and computing an average or median envelope as an average or mean of QRS complex segment envelopes for each frequency range in each channel.

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.

The present invention relates to an electrocardiogram measurement system using a wearable device, comprising a photoplethysmograph, and an electrocardiograph provided in a wearable device or an electrocardiograph which can be separated from the wearable device and carried, wherein the photoplethysmograph comprises a photoplethysmogram measurement circuit comprising an LED and a photodiode, an AD converter connected to an output terminal of the photoplethysmogram measurement circuit, for converting an analog signal to a digital signal, a wireless communication means for transmitting and receiving data, and a microcontroller for measuring photoplethysmogram, the microcontroller extracts photoplethysmogram parameters by analyzing the measured photoplethysmogram, determines generation of an alarm by using the extracted photoplethysmogram parameters, and generates an alarm on the basis of the determination result, and the electrocardiograph comprises three dry electrocardiogram measurement electrodes and two amplifiers for amplifying two electrocardiogram signals induced at two electrocardiogram electrodes out of the three electrocardiogram electrodes.

The present invention relates to an electrocardiogram measurement system using a wearable device, comprising a photoplethysmograph, and an electrocardiograph provided in a wearable device or an electrocardiograph which can be separated from the wearable device and carried, wherein the photoplethysmograph comprises a photoplethysmogram measurement circuit comprising an LED and a photodiode, an AD converter connected to an output terminal of the photoplethysmogram measurement circuit, for converting an analog signal to a digital signal, a wireless communication means for transmitting and receiving data, and a microcontroller for measuring photoplethysmogram, the microcontroller extracts photoplethysmogram parameters by analyzing the measured photoplethysmogram, determines generation of an alarm by using the extracted photoplethysmogram parameters, and generates an alarm on the basis of the determination result, and the electrocardiograph comprises three dry electrocardiogram measurement electrodes and two amplifiers for amplifying two electrocardiogram signals induced at two electrocardiogram electrodes out of the three electrocardiogram electrodes.

A method for early identification of the presence of coronary heart disease or an arrhythmia in a patient being examined, including the steps of: (i) non-invasive recording of EKG signals at the patient's heart when resting, (ii) filter processing of the recorded EKG signals, (iii) transferring the filtered EKG signals into orthogonalised measurement variables on the basis of vectorcardiography, and (iv) entering the orthogonalised and, in the case of incorrectly applied electrodes, corrected measurement variables into a system based on artificial intelligence in which known findings data from comparative patients are stored and, by comparing these entered orthogonalised measurement variables with the findings data of the comparative patients within the Al system, a diagnosis is obtained for the patient being examined.

A method for early identification of the presence of coronary heart disease or an arrhythmia in a patient being examined, including the steps of: (i) non-invasive recording of EKG signals at the patient's heart when resting, (ii) filter processing of the recorded EKG signals, (iii) transferring the filtered EKG signals into orthogonalised measurement variables on the basis of vectorcardiography, and (iv) entering the orthogonalised and, in the case of incorrectly applied electrodes, corrected measurement variables into a system based on artificial intelligence in which known findings data from comparative patients are stored and, by comparing these entered orthogonalised measurement variables with the findings data of the comparative patients within the Al system, a diagnosis is obtained for the patient being examined.