Processing

Please wait...

Settings

Settings

Goto Application

1. WO2019209626 - SYSTEM AND METHOD FOR MAPPING ARRHYTHMIC DRIVER SITES

Publication Number WO/2019/209626
Publication Date 31.10.2019
International Application No. PCT/US2019/028175
International Filing Date 18.04.2019
IPC
A61B 5/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
A61B 5/042 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
04Measuring bioelectric signals of the body or parts thereof
0402Electrocardiography, i.e. ECG
0408Electrodes specially adapted therefor
042for introducing into the body
A61B 5/053 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
05Measuring for diagnosis by means of electric currents or magnetic fields
053Measuring electrical impedance or conductance of a portion of the body
CPC
A61B 2562/0209
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
2562Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
02Details of sensors specially adapted for in-vivo measurements
0209Special features of electrodes classified in A61B5/04001, A61B5/0408, A61B5/042, A61B5/0478, A61B5/0492 or A61B5/053
A61B 2562/043
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
2562Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
04Arrangements of multiple sensors of the same type
043in a linear array
A61B 5/0422
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
04Measuring bioelectric signals of the body or parts thereof
0402Electrocardiography, i.e. ECG
0408Electrodes specially adapted therefor
042for introducing into the body
0422Multiple electrode holders
A61B 5/0452
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
04Measuring bioelectric signals of the body or parts thereof
0402Electrocardiography, i.e. ECG
0452Detecting specific parameters of the electrocardiograph cycle
A61B 5/0538
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; ; Measuring using microwaves or radiowaves
053Measuring electrical impedance or conductance of a portion of the body
0538invasively, e.g. using a catheter
A61B 5/6858
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
6846specially adapted to be brought in contact with an internal body part, i.e. invasive
6847mounted on an invasive device
6852Catheters
6858with a distal basket, e.g. expandable basket
Applicants
  • ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC. [US]/[US]
Inventors
  • DENO, Don Curtis
  • KIM, Steve
  • GOKSU, Fikri
  • HARTLEY, Thomas
Agents
  • STORVICK, Kristofor
  • RODGERS, James G.
  • FELDER, Scott A.
Priority Data
62/663,19326.04.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR MAPPING ARRHYTHMIC DRIVER SITES
(FR) SYSTÈME ET PROCÉDÉ POUR CARTOGRAPHIER DES SITES D'ATTAQUE ARYTHMIQUES
Abstract
(EN)
Arrhythmic foci and other driver sites can be mapped using a multi-dimensional catheter. For instance, using a clique of three or more electrodes on the multi-dimensional catheter, an electroanatomical mapping system can identify a maximum bipolar voltage and an average unipolar voltage. The ratio of the average unipolar voltage to the maximum bipolar voltage can be interpreted as an indication of whether a cardiac location is an arrhythmic focus. Alternatively, an evaluation region can be defined about location in the patient's heart. The evaluation includes a plurality of rods, each associated with a respective E-field loop having a respective maximum and minimum amplitude bipole axes, with the rods being defined by the maximum amplitude bipole axes. For a sufficient number of rods within the evaluation region, a focus score for the evaluation region can be computed to reflect rod orientation consistency within the evaluation region.
(FR)
L'invention concerne des foyers arythmiques et d'autres sites d'attaque qui peuvent être cartographiés à l'aide d'un cathéter multidimensionnel. Par exemple, à l'aide d'une clique d'au moins trois électrodes sur le cathéter multidimensionnel, un système de cartographie électro-anatomique peut identifier une tension bipolaire maximale et une tension unipolaire moyenne. Le rapport de la tension unipolaire moyenne à la tension bipolaire maximale peut être interprété comme une indication précisant si un emplacement cardiaque est un foyer arythmique. En variante, une région d'évaluation peut être définie atour d'un emplacement dans le cœur du patient. L'évaluation comprend une pluralité de tiges, chacune étant associée à une boucle de champ E respective ayant des axes bipolaires d'amplitude maximale et minimale respectifs, les tiges étant définies par les axes bipolaires d'amplitude maximale. Pour un nombre suffisant de tiges dans la région d'évaluation, un score de foyer pour la région d'évaluation peut être calculé pour refléter la cohérence d'orientation de tige dans la région d'évaluation.
Latest bibliographic data on file with the International Bureau