Methods include obtaining measurements of electrical activity of a heart, organizing the measurements into one group with values within a first range and a second group with values within a second range, and associating the first group with a first incidence of fibrillation and the second group with a second incidence of fibrillation in the heart. The values may comprise cycle lengths or median cycle lengths. Methods may include grouping the measurements by the median cycle lengths and a second value such as a direction of propagation. The first incidence of atrial fibrillation may comprise electrical electrophysiological activity resulting from a first focal origin or multiple reentrant circuit and the second incidence of atrial fibrillation may comprise electrophysiological activity resulting from a second focal origin or multiple reentrant circuit, potentially independent from the first focal origin or multiple reentrant circuit.
A61B 5/02 - Détection, mesure ou enregistrement en vue de l'évaluation du système cardio-vasculaire, p. ex. mesure du pouls, du rythme cardiaque, de la pression sanguine ou du débit sanguin
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
Methods include obtaining measurements of electrical activity of a heart, organizing the measurements into one group with values within a first range and a second group with values within a second range, and associating the first group with a first incidence of fibrillation and the second group with a second incidence of fibrillation in the heart. The values may comprise cycle lengths or median cycle lengths. Methods may include grouping the measurements by the median cycle lengths and a second value such as a direction of propagation. The first incidence of atrial fibrillation may comprise electrical electrophysiological activity resulting from a first focal origin or multiple reentrant circuit and the second incidence of atrial fibrillation may comprise electrophysiological activity resulting from a second focal origin or multiple reentrant circuit, potentially independent from the first focal origin or multiple reentrant circuit.
The invention provides methods for mapping the electrical activity of the heart and create cycle length maps to guide ablation to treat atrial fibrillation.
The present disclosure applies to methods of cardiac ablation that use an algorithm to determine where in the heart a driver of atrial fibrillation is located. Catheters with multi-electrode arrays are used to measure electrograms from cardiac signals wherein abnormal signals are identified as electrogram deflections with characteristic shapes. The electrogram deflections are compared to each other in pairs to determine which came first in time in order to determine the net direction of propagation of a fibrillatory wave. The signal that came first is assigned a positive point value so that once the plurality of electrograms have been compared, the signal with the highest point value can be identified as a driver of fibrillation. The data can be displayed graphically as a map of atrial fibrillation drivers on a 3D representation of a heart, allowing surgeons to quickly and easily identify where on the heart the driver is.
A61B 5/05 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio
A61N 1/05 - Électrodes à implanter ou à introduire dans le corps, p. ex. électrode cardiaque
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
The present disclosure applies to methods of cardiac ablation that use catheters able to conform and adapt to the heart of a patient in the middle of surgery. The catheters comprise paddles at the distal ends that have an array of electrodes on at least one side. The durometer of the paddles can be changed through physical manipulation of wires attached to the paddles or through other means such as the material the paddles are made of. Electrodes on the paddle record cardiac signals and a computer analyzes these signals to determine where in the heart fibrillation is originating. The computer then outputs a site for ablation.
The invention provides a catheter with at least one electrode pair on the head of the catheter to collect data regarding the electrical activity of the heart and analyze the data using a high-performance mapping algorithm to map the interior portions of the heart to guide catheter ablation.
The invention provides methods for mapping the electrical activity of the heart and create cycle length maps to guide ablation to treat atrial fibrillation.
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61N 1/05 - Électrodes à implanter ou à introduire dans le corps, p. ex. électrode cardiaque
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
8.
SYSTEMS AND METHODS FOR MAPPING ARRYTHMIA OR FIBRILLATION
The invention provides an asymmetrically flexible cardiac mapping catheter that includes a deformation mechanism by which a user may deform a distal portion of the catheter giving the user the ability to reach, and map electrical activity of, substantially any surface within the heart.
The invention provides an asymmetrically flexible cardiac mapping catheter that includes a deformation mechanism by which a user may deform a distal portion of the catheter giving the user the ability to reach, and map electrical activity of, substantially any surface within the heart.
The present disclosure applies to methods of cardiac ablation that use an algorithm to determine where in the heart a driver of atrial fibrillation is located. Catheters with multi-electrode arrays are used to measure electrograms from cardiac signals wherein abnormal signals are identified as electrogram deflections with characteristic shapes. The electrogram deflections are compared to each other in pairs to determine which came first in time in order to determine the net direction of propagation of a fibrillatory wave. The signal that came first is assigned a positive point value so that once the plurality of electrograms have been compared, the signal with the highest point value can be identified as a driver of fibrillation. The data can be displayed graphically as a map of atrial fibrillation drivers on a 3D representation of a heart, allowing surgeons to quickly and easily identify where on the heart the driver is.
The invention provides a catheter with at least one electrode pair on the head of the catheter to collect data regarding the electrical activity of the heart and analyze the data using a high-performance mapping algorithm to map the interior portions of the heart to guide catheter ablation.
The present disclosure applies to methods of cardiac ablation that use catheters able to conform and adapt to the heart of a patient in the middle of surgery. The catheters comprise paddles at the distal ends that have an array of electrodes on at least one side. The durometer of the paddles can be changed through physical manipulation of wires attached to the paddles or through other means such as the material the paddles are made of. Electrodes on the paddle record cardiac signals and a computer analyzes these signals to determine where in the heart fibrillation is originating. The computer then outputs a site for ablation.
ALGORITHMIC TECHNIQUES FOR DEDUCTION OF FUNCTIONAL CHARACTERISTICS OF CARDIAC TISSUE IN CARDIAC ELECTRICAL FIBRILLATION FROM A DENSELY PACKED ARRAY OF HIGH-RESOLUTION ELECTRODES
The present disclosure describes cardiac mapping techniques that find particular use in assessing fibrillation, and which also improve the ability to correctly identify local activation time from signals in any rhythm.
The present invention provides a device and method for monitoring bioelectrical signals in cells, tissues, and/or organs. The invention makes use of a unique and innovative retractable mapping catheter and electrode array system that has maximum flexibility to conform to the shape of the tissue substrate upon which it is placed. The flexible nature of the catheter and electrode array system allows the electrodes to adapt to the configuration of the tissue upon which it is placed, thus each electrode in the array is in continuous contact with the substrate.
The present invention provides a device and method for monitoring bioelectrical signals in cells, tissues, and/or organs. The invention makes use of a unique and innovative retractable mapping catheter and electrode array system that has maximum flexibility to conform to the shape of the tissue substrate upon which it is placed. The flexible nature of the catheter and electrode array system allows the electrodes to adapt to the configuration of the tissue upon which it is placed, thus each electrode in the array is in continuous contact with the substrate.
The present invention provides a device and method for monitoring bioelectrical signals in cells, tissues, and/or organs. The invention makes use of a unique and innovative retractable mapping catheter and electrode array system that has maximum flexibility to conform to the shape of the tissue substrate upon which it is placed. The flexible nature of the catheter and electrode array system allows the electrodes to adapt to the configuration of the tissue upon which it is placed, thus each electrode in the array is in continuous contact with the substrate.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Recorded computer software for diagnostic use in medical decision support systems for diagnostic and interventional procedures; recorded computer programs and software in the field of medicine and used in connection with surgical and medical catheters; recorded computer programs and software for imaging in the field of fibroid ablation; recorded computer programs and software for use with a mapping catheter that enables review of catheter locations
18.
SYSTEMS AND METHODS FOR MONITORING BIOELECTRICAL ACTIVITY AND ASSESSING CONDITIONS ASSOCIATED THEREWITH
The invention provides systems and methods for monitoring electrical biosignals of one or more biological cells, tissues, and/or organs of a patient and assessing a condition of the patient based on the electrical biosignals.
A61N 1/36 - Application de courants électriques par électrodes de contact courants alternatifs ou intermittents pour stimuler, p. ex. stimulateurs cardiaques
19.
SYSTEMS AND METHODS FOR MONITORING BIOELECTRICAL ACTIVITY AND ASSESSING CONDITIONS ASSOCIATED THEREWITH
The invention provides systems and methods for monitoring electrical biosignals of one or more biological cells, tissues, and/or organs of a patient and assessing a condition of the patient based on the electrical biosignals.
The invention provides systems and methods for monitoring electrical biosignals of one or more biological cells, tissues, and/or organs of a patient and assessing a condition of the patient based on the electrical biosignals.
The present disclosure describes a common mode rejection (CMR) electrode configuration. A CMR electrode configuration improves the spatial resolution of electrogram recordings by increasing the size of a region of cardiac tissue that contributes to the electrogram recording.
The present disclosure describes a common mode rejection (CMR) electrode configuration. A CMR electrode configuration improves the spatial resolution of electrogram recordings by increasing the size of a region of cardiac tissue that contributes to the electrogram recording.
The present disclosure describes a common mode rejection (CMR) electrode configuration. A CMR electrode configuration improves the spatial resolution of electrogram recordings by increasing the size of a region of cardiac tissue that contributes to the electrogram recording.
The present disclosure describes cardiac mapping techniques that find particular use in assessing fibrillation, and which also improve the ability to correctly identify local activation time from signals in any rhythm.
The present disclosure describes cardiac mapping techniques that find particular use in assessing fibrillation, and which also improve the ability to correctly identify local activation time from signals in any rhythm.
Algorithmic techniques for deduction of functional characteristics of cardiac tissue in cardiac electrical fibrillation from a densely packed array of high-resolution electrodes
The present disclosure describes cardiac mapping techniques that find particular use in assessing fibrillation, and which also improve the ability to correctly identify local activation time from signals in any rhythm.
09 - Appareils et instruments scientifiques et électriques
10 - Appareils et instruments médicaux
Produits et services
Recorded computer software for diagnostic use in medical decision support systems for diagnostic and interventional procedures; recorded computer programs and software in the field of medicine and used in connection with surgical and medical catheters; recorded computer programs and software for imaging in the field of fibroid ablation; recorded computer programs and software for use with a mapping catheter that enables review of catheter locations Medical and surgical catheters; mapping catheters
09 - Appareils et instruments scientifiques et électriques
10 - Appareils et instruments médicaux
Produits et services
Recorded computer software for diagnostic use in medical decision support systems for diagnostic and interventional procedures; recorded computer programs and software in the field of medicine and used in connection with surgical and medical catheters; recorded computer programs and software for imaging in the field of fibroid ablation; recorded computer programs and software for use with a mapping catheter that enables review of catheter locations Medical and surgical catheters; mapping catheters
