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1. (WO2011134499) ARRHYTHMIA CLASSIFICATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/134499    International Application No.:    PCT/EP2010/055639
Publication Date: 03.11.2011 International Filing Date: 27.04.2010
IPC:
A61B 5/0452 (2006.01), A61B 5/053 (2006.01), A61N 1/365 (2006.01)
Applicants: ST. JUDE MEDICAL AB [SE/SE]; SE-175 84 Järfälla (SE) (For All Designated States Except US).
BJÖRLING, Anders [SE/SE]; (SE) (For US Only).
HOLLMARK, Malin [SE/SE]; (SE) (For US Only).
SVENSSON, Tomas [SE/SE]; (SE) (For US Only).
HJELM, Stefan [SE/SE]; (SE) (For US Only).
NORÉN, Kjell [SE/SE]; (SE) (For US Only).
JÄRVERUD, Karin [SE/SE]; (SE) (For US Only)
Inventors: BJÖRLING, Anders; (SE).
HOLLMARK, Malin; (SE).
SVENSSON, Tomas; (SE).
HJELM, Stefan; (SE).
NORÉN, Kjell; (SE).
JÄRVERUD, Karin; (SE)
Priority Data:
Title (EN) ARRHYTHMIA CLASSIFICATION
(FR) CLASSIFICATION D'ARYTHMIE
Abstract: front page image
(EN)An implantable medical device (100) is configured for generating a cardiogenic impedance signal representative of the cardiogenic impedance of at least a portion of a heart (10) of a subject (20) during multiple cardiac cycles. A transform processor (132) generates a spectrum signal by applying a time- to-frequency transform to the cardiogenic impedance signal. The spectrum signal is processed by a distribution processor (133) configured to calculate a distribution parameter indicative of a distribution in at least a portion of the spectrum signal. The calculated distribution parameter is of high diagnostic value and is employed by an arrhythmia classifier (134) in order to classify a detected arrhythmia of the heart (10), such as discriminate between hemodynamically stable or unstable arrhythmias and/or supraventricular or ventricular tachycardia.
(FR)L'invention concerne un dispositif médical implantable (100) configuré pour générer un signal d'impédance cardiogène représentatif de l'impédance cardiogène d'au moins une partie d'un cœur (10) d'un sujet (20) au cours de multiples cycles cardiaques. Un processeur de transformation (132) génère un signal spectral par application d'une transformation temps-fréquence au signal d'impédance cardiogène. Le signal spectral est traité par un processeur de distribution (133) configuré pour calculer un paramètre de distribution indicatif d'une distribution dans au moins une partie du signal spectral. Le paramètre de distribution calculé est de valeur diagnostique élevée et est employé par un dispositif de classification d'arythmie (134) afin de classer une arythmie détectée du cœur (10), de façon à discriminer entre des arythmies hémodynamiquement stables ou instables et/ou des tachycardies supraventriculaires ou ventriculaires.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)