A system and method providing outpatient ECG monitoring and safe home based cardiac tele-rehabilitation. The system includes a recordation module for recording ECG signals using at least one lead, a tele-rehabilitation module for home based exercise management for a patient's recovery, the tele-rehabilitation module including a processing module for recognizing erroneous data from the ECG signals and an analysis module for calculating beat-to-beat annotations and determining if an ECG event and/or if a QT interval duration change has occurred. The system can include an exercise module for guiding the patient during an exercise session, a visual display that informs the patient to start and/or to stop the tele-rehabilitation exercise, a visual display and/or audible signal that informs the patient of an incoming or a missed tele-rehabilitation exercise session, and/or a communication module for transmitting/receiving data between the a cardiac tele-rehabilitation module and a physician/monitoring center.

A method of displaying electrocardiograms comprises displaying a reference electrocardiogram; and displaying a measured electrocardiogram so that the reference electrocardiogram and the measured electrocardiogram are displayed in an overlapping state.

A guidance and placement system and associated methods for assisting a clinician in the placement of a catheter or other medical device within the vasculature of a patient is disclosed. In one embodiment, a method for guiding a medical device to a desired location within a vasculature of a patient is also disclosed and comprises detecting an intravascular ECG signal of the patient and identifying a P-wave of a waveform of the intravascular ECG signal, wherein the P-wave varies according to proximity of the medical device to the desired location. The method further comprises determining whether the identified P-wave is elevated, determining a deflection value of the identified P-wave when the identified P-wave is elevated, and reporting information relating to a location of the medical device within the patient's vasculature at least partially according to the determined deflection value of the elevated P-wave.

The various embodiments of the present invention provide a system and method for a fully mobile, non-invasive, continuous system for monitoring the cardiovascular health of an individual. The system includes one or more wearable devices affixed on a user, coupled with an application running on a computing device smartphone/tablet, which is connected to a web server in a cloud, and performs various computations on the wearable device, or a smartphone/smartwatch, or the cloud, and provide the user or the concerned personnel with various insights about the general health of the user. The cardiovascular health monitoring system further enables the user to make online appointments, pay online for such appointments, share data with the concerned personnel in a secure manner, and obtain advice and prescriptions through audio/video/text channels.

A method of locating a tip of a central venous catheter (“CVC”) having a distal and proximal pair of electrodes disposed within the superior vena cava, right atrium, and/or right ventricle. The method includes obtaining a distal and proximal electrical signal from the distal and proximal pair of electrodes and using those signals to generate a distal and proximal P wave, respectively. A deflection value is determined for each of the P waves. A ratio of the deflection values is then used to determine a location of the tip of the CVC. Optionally, the CVC may include a reference pair of electrodes disposed within the superior vena cava from which a reference deflection value may be obtained. A ratio of one of the other deflection values to the reference deflection value may be used to determine the location of the tip of the CVC.

A method for characterizing an electrocardiogram, including receiving a first unipolar signal from a first location of a heart and a second unipolar signal from a second location of the heart. The method further includes generating a bipolar signal from the first and second unipolar signals, and analyzing the bipolar signal to delineate a time period during which the first and second locations generate a bipolar complex. The method also includes analyzing the first unipolar signal within the time period to determine an activation time of the first location.

A defibrillator system employs an external ECG monitor (40) and a defibrillator (20). In operation, external ECG monitor (40) generates a synchronized cardioversion input signal as one of an external ECG waveform (50) of a heart (11) of a patient (10) or an external synchronized pulse (51) indicative of a detection by the external ECG monitor (40) of at least one QRS complex of the external ECG waveform (50). Defibrillator (40) includes a synchronized cardioversion input channel (29) for receiving the synchronized cardioversion input signal from external ECG monitor (40), and controls a conditional delivery of a defibrillation shock synchronized with the synchronized cardioversion input signal to the patient (10) in response to the defibrillator (20) receiving the synchronized cardioversion input signal. One condition for shock delivery is a measured time delay between an internal ECG waveform (30) and the synchronized cardioversion input signal being less than a baseline time delay.

Described herein are methods, apparatuses, and systems for heart monitoring of a patient. The heart monitoring system can be used to take an electrocardiogram (ECG) using only two electrodes. A handheld device can be used to sequentially measure the electrical signal between different positions on a patient's body. The electrical signals can be processed and analyzed to prepare an ECG for the patient, including a 12-lead ECG.

A head mounted device (HMD) includes an imaging unit configured to capture at least one image of a partial region of an iris, an electrocardiogram (ECG) sensor configured to receive an ECG signal, and a control unit configured to acquire at least one image of the partial region of the iris and ECG signals, and authenticate a user by using the acquired image(s) of the partial region of the iris and the ECG signals.

Systems and methods can be used to provide an indication of heart function, such as an indication of mechanical function or hemodynamics of the heart, based on electrical data. For example, a method for assessing a function of the heart can include determining a time-based electrical characteristic for a plurality of points distributed across a spatial region of the heart. The plurality of points can be grouped into at least two subsets of points based on at least one of a spatial location for the plurality of points or the time-based electrical characteristics for the plurality of points. An indication of synchrony for the heart can be quantified based on relative analysis of the determined time-based electrical characteristic for each of the at least two subsets of points.