Electrocardiographs; Electrocardiograph apparatus; Electrocardiograph instruments; Electrocardiography apparatus; Electrocardiographic recorders; Electrophysiology electrodes; Electrodes for picking up electrophysiological parameters; Cardiac electrodes; Electrodes for medical use; Electrodes for use with medical apparatus; Cardiac mapping devices.
2.
SYSTEM AND METHOD FOR AUTOMATIC LOCALIZATION OF THE SPATIAL POSITION OF ELECTRODES ON A CONDUCTIVE BODY
A system for the automatic localization of electrode spatial position on the surface of a conductive body, having a processing unit, which: in response to electrical current injections at first electrodes, acquires voltages measured at second electrodes on the surface of the conductive body; using an electrical impedance model of the conductive body, simulates the electrical current injections at the first electrodes and estimates, for each electrical current injection, a resulting body surface potential on the surface of the conductive body; and performs a combined processing of the voltages measured at the second electrodes and of the estimated body surface potential, in order to determine the locations of the second electrodes on the surface of the conductive body.
Surgical, medical, dental and veterinary apparatus and
instruments; artificial limbs, eyes and teeth; orthopedic
articles; suture materials; therapeutic and assistance
devices designed for people with disabilities; massage
apparatus; apparatus, devices and articles for child care;
sexual activity apparatus, devices and articles.
4.
Method for automated detection of sites of latest electrical activation of the human heart and a corresponding system
A method for the automated detection of sites of latest electrical activation of the human heart, envisages: constructing a number of isopotential maps associated with the electrical potential distribution on the surface of the heart in respective times within a processing period occurring near the end of the ventricular or atrial depolarization; processing the isopotential maps to identify regions of maximal positive electrical potential; determining the barycenters of the identified regions; and localizing the site of latest heart electrical activation based on, in particular as an average of, the determined barycenters.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
A61B 6/50 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications
5.
SYSTEM AND METHOD FOR AUTOMATIC LOCALIZATION OF THE SPATIAL POSITION OF ELECTRODES ON A CONDUCTIVE BODY
i,mi,mi,m) measured at the second electrodes (5) and of the estimated body surface potential, in order to determine the locations of the second electrodes (5) on the surface of the conductive body.
Disclosed are various embodiments of invasive and non-invasive systems for electrophysiological mapping of a patient's heart, where cardiac action potentials (APs) on a myocardial surface of a human heart are reconstructed. In one embodiment, the APs are reconstructed using known electrical potentials on the myocardial surface in combination with known geometries of the heart and/or the torso. A mathematical model of cardiac electrical activity may be employed that takes into account homogeneous and isotropic intracellular, extracellular, and human body electrical conductivities.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/042 - Electrodes specially adapted therefor for introducing into the body
A61B 5/04 - Measuring bioelectric signals of the body or parts thereof
A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
A61B 5/0452 - Detecting specific parameters of the electrocardiograph cycle
G16H 50/50 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for simulation or modelling of medical disorders
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
7.
Method of noninvasive electrophysiological study of the heart
Reconstructing electrograms, whose experimental registration requires an invasive access, by computational way on unipolar ECGs recorded at 80 and more points of the chest surface. On the set of surface electrocardiograms for each discrete moment of the cardiocycle, values of the heart electric field potential at points of ECG-recording are determined, and a value of the electric field potential at each point of the chest surface is calculated by interpolation. Based on data of any visualization methodology, boundaries of chest and lungs surfaces and of the heart epicardial surface are determined. Further, a continuation of the electric field potential over the whole chest surface up to the heart epicardial surface with taking into account differences in electroconductivity of large anatomical structures of the chest is performed by computational way based on solution of the Cauchy problem for the Laplace equation in a piecewise-homogenous medium.
The invention relates to medicine, namely to cardiology, cardiovascular surgery, functional diagnosis and clinical electrophysiology of the heart. The invention consists in reconstructing electrograms, whose experimental registration requires an invasive access, by computational way on unipolar ECGs recorded at 80 and more points of the chest surface. An application of the method allows one to improve the accuracy of non-invasive diagnosis of cardiac rhythm disturbances and other cardio-vascular diseases.
The invention relates to medicine, namely to cardiology, cardiovascular surgery, functional diagnosis and clinical electrophysiology of the heart. The invention consists in reconstructing electrograms, whose experimental registration requires an invasive access, by computational way on unipolar ECGs recorded at 80 and more points of the chest surface. Based on reconstructed electrograms, isopotential, isochronous maps on realistic models of the heart are constructed, the dynamics of the myocardium excitation is reconstructed and electrophysiological processes in the cardiac muscle are diagnosed. Application of the method allows one to improve the accuracy of non-invasive diagnosis of cardiac rhythm disturbances and other cardio-vascular diseases.
