The invention provides a body-worn monitor that measures a patient's vital signs (e.g. blood pressure, SpO2, heart rate, respiratory rate, and temperature) while simultaneously characterizing their activity state (e.g. resting, walking, convulsing, falling). The body-worn monitor processes this information to minimize corruption of the vital signs by motion-related artifacts. A software framework generates alarms/alerts based on threshold values that are either preset or determined in real time. The framework additionally includes a series of heuristic rules that take the patient's activity state and motion into account, and process the vital signs accordingly. These rules, for example, indicate that a walking patient is likely breathing and has a regular heart rate, even if their motion-corrupted vital signs suggest otherwise.

A method of detecting atrial fibrillation includes detecting a pulse signal to obtain a time pulse waveform and converting it to an energy spectrum waveform via Fast Fourier Transform. The energy spectrum waveform includes a first frequency region, a second frequency region, and a third frequency region. The number of spikes in each frequency region was calculated and the heart indexes of the first, second, and third frequency regions were obtained, which were the first heart index, the second heart index, and the third heart index. And by the sum of the three heart index values and the first heart index to determine the possibility of atrial fibrillation. An apparatus for detecting atrial fibrillation is also provided, whereby the user can determine the possibility and predicting atrial fibrillation by simple measurement of blood pressure at home.

A method and system for mapping an anatomical structure includes sensing activation signals of intrinsic physiological activity with a plurality of mapping electrodes disposed in or near the anatomical structure, each of the plurality of mapping electrodes having an electrode location. A vector field map which represents a direction of propagation of the activation signals at each electrode location is generated to identify a signature pattern and a location in the vector field map according to at least one vector field template. A target location of the identified signature pattern is identified according to a corresponding electrode location.

A method including obtaining a first electrocardiography [ECG] reading from a test subject when the test subject is believed to not suffer from blood volume loss and obtaining a second ECG reading from the test subject when the test subject is in an unknown condition regarding blood volume loss. The first ECG reading and the second ECG reading are obtained using the same electrode positions on the test subject and include sets of ECG signals which, based on experimental data, respond to small decrease in blood volume by a statistically significant strength decrease. If the second ECG reading exhibits a statistically significant strength decrease compared with the first ECG reading, an alert condition is raised, which indicates potential small decrease in blood volume. The method can be embodied as a stand-alone ECG apparatus or as an add-on unit to an ECG apparatus.

A method and system for mapping an anatomical structure includes sensing activation signals of intrinsic physiological activity with a plurality of mapping electrodes disposed in or near the anatomical structure, each of the plurality of mapping electrodes having an electrode location. A vector field map which represents a direction of propagation of the activation signals at each electrode location is generated to identify a signature pattern and a location in the vector field map according to at least one vector field template. A target location of the identified signature pattern is identified according to a corresponding electrode location.

A myocardial excitation complementation/visualization apparatus includes an acquiring section that acquires intracardiac electrocardiograms of a subject, the intracardiac electrocardiograms being recorded by a recording unit having a plurality of electrodes, a processing section that performs a computation for completing and visualizing a state of excitation in a myocardium of the subject based on the intracardiac electrocardiograms, and a displaying section that displays the state of excitation in the myocardium of the subject based on an output of the processing section. The processing section includes a first generating section, a correcting section, a second generating section, and a third generating section. The displaying section displays a change of the state of excitation in the myocardium of the subject based on the visualized data.

The invention provides a body-worn monitor that measures a patient's vital signs (e.g. blood pressure, SpO2, heart rate, respiratory rate, and temperature) while simultaneously characterizing their activity state (e.g. resting, walking, convulsing, falling). The body-worn monitor processes this information to minimize corruption of the vital signs by motion-related artifacts. A software framework generates alarms/alerts based on threshold values that are either preset or determined in real time. The framework additionally includes a series of heuristic rules that take the patient's activity state and motion into account, and process the vital signs accordingly. These rules, for example, indicate that a walking patient is likely breathing and has a regular heart rate, even if their motion-corrupted vital signs suggest otherwise.

Systems, devices, and methods relate to utilizing an electronic caliper to analyze an electronic electrocardiogram (ECG). An example method for includes outputting, by a display, an electronic ECG within a graphical user interface (GUI). An electronic caliper is output, by the display, as overlaid on the electronic ECG within the GUI. The electronic caliper includes a first electronic tip and a second electronic tip. The method further includes receiving, by a user input device, a user input signal and moving, based on the user input signal, the first electronic tip, the second electronic tip, or both the first electronic tip and the second electronic tip, relative to the electronic ECG within the GUI.

Systems, devices, and methods relate to utilizing an electronic caliper to analyze an electronic electrocardiogram (ECG). An example method for includes outputting, by a display, an electronic ECG within a graphical user interface (GUI). An electronic caliper is output, by the display, as overlaid on the electronic ECG within the GUI. The electronic caliper includes a first electronic tip and a second electronic tip. The method further includes receiving, by a user input device, a user input signal and moving, based on the user input signal, the first electronic tip, the second electronic tip, or both the first electronic tip and the second electronic tip, relative to the electronic ECG within the GUI.

Certain exemplary aspects of the present disclosure are directed towards methods and apparatuses for conducting physical examinations of a human. Optionally, such embodiments permit for remote examination of a patient, for example, the patient's heart or lung region. In such embodiments, a user operates a remote physical examination sensor, while a remote examination computer and/or remote medical personnel reviews/analyzes medical data received from the remote physical examination sensor to diagnose the condition of the user. The remote physical examination instrument may be equipped with a plurality of skin-compatible electrodes on a remote examination sensor connected to the user's chest, as well as one or more electrodes on the top cover or sides of the remote examination sensor connecting to the user's hand and providing medical data to the remote examination computer.