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105. (EP3435856) ATRIAL ARRHYTHMIA EPISODE DETECTION IN A CARDIAC MEDICAL DEVICE

Application Number: 17711944 Application Date: 06.03.2017
Publication Number: 3435856 Publication Date: 06.02.2019
Publication Kind : A1
Prior PCT appl.: Application Number:US2017020874 ; Publication Number: Click to see the data
IPC:
A61B 5/046
A61B 5/00
A61B 5/024
A61B 5/0456
A61B 5/0464
A61B 5/0472
A61N 1/39
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
04
Measuring bioelectric signals of the body or parts thereof
0402
Electrocardiography, i.e. ECG
0452
Detecting specific parameters of the electrocardiograph cycle
046
Detecting fibrillation
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
02
Measuring pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography; Heart catheters for measuring blood pressure
024
Measuring pulse rate or heart rate
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
04
Measuring bioelectric signals of the body or parts thereof
0402
Electrocardiography, i.e. ECG
0452
Detecting specific parameters of the electrocardiograph cycle
0456
Detecting R peaks, e.g. for synchronising diagnostic apparatus
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
04
Measuring bioelectric signals of the body or parts thereof
0402
Electrocardiography, i.e. ECG
0452
Detecting specific parameters of the electrocardiograph cycle
0464
Detecting tachycardy or brachycardy
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
04
Measuring bioelectric signals of the body or parts thereof
0402
Electrocardiography, i.e. ECG
0452
Detecting specific parameters of the electrocardiograph cycle
0472
Detecting abnormal QRS complex
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1
Electrotherapy; Circuits therefor
18
Applying electric currents by contact electrodes
32
alternating or intermittent currents
38
for producing shock effects
39
Heart defibrillators
Applicants: MEDTRONIC INC
Inventors: HIGGINS ELISE J
BROWN MARK L
CAO JIAN
Priority Data: 201615084511 30.03.2016 US
2017020874 06.03.2017 US
Title: (DE) DETEKTION EINER EPISODE EINER ATRIALEN ARHYTHMIE IN EINER KARDIALEN MEDIZINISCHEN VORRICHTUNG
(EN) ATRIAL ARRHYTHMIA EPISODE DETECTION IN A CARDIAC MEDICAL DEVICE
(FR) DÉTECTION D'ÉPISODES D'ARYTHMIE AURICULAIRE AU MOYEN D'UN DISPOSITIF MÉDICAL CARDIAQUE
Abstract:
(EN) A medical device is configured to detect an atrial tachyarrhythmia episode. The device senses a cardiac signal, identifies R-waves in the cardiac signal attendant ventricular depolarizations and determines classification factors from the R-waves identified over a predetermined time period. The device classifies the predetermined time period as one of unclassified, atrial tachyarrhythmia and non-atrial tachyarrhythmia by comparing the determined classification factors to classification criteria. A classification criterion is adjusted from a first classification criterion to a second classification criterion after at least one time period being classified as atrial tachyarrhythmia. An atrial tachyarrhythmia episode is detected by the device in response to at least one subsequent time period being classified as atrial tachyarrhythmia based on the adjusted classification criterion.
(FR) L'invention concerne un dispositif médical conçu pour détecter un épisode de tachyarythmie auriculaire. Le dispositif détecte un signal cardiaque, identifie les ondes R du signal cardiaque associées à des dépolarisations ventriculaires, et détermine des facteurs de classification à partir des ondes R identifiées sur une période prédéterminée. Le dispositif classe la période prédéterminé comme étant une tachyarythmie non classifiée, une tachyarythmie auriculaire ou une tachyarythmie non auriculaire en comparant les facteurs de classification déterminés à des critères de classification. Un critère de classification est ajusté depuis un premier critère de classification à un second critère de classification après qu'une période au moins soit classée comme tachyarythmie auriculaire. Un épisode de tachyarythmie auriculaire est détecté par le dispositif en réponse à au moins une période ultérieure classée comme tachyarythmie auriculaire sur la base du critère de classification ajusté.