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1. (WO1996014796) USING RELATED SIGNALS TO REDUCE ECG NOISE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1996/014796 International Application No.: PCT/US1995/014889
Publication Date: 23.05.1996 International Filing Date: 14.11.1995
Chapter 2 Demand Filed: 13.06.1996
IPC:
A61B 5/0408 (2006.01) ,A61B 5/053 (2006.01) ,G06F 17/00 (2006.01)
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
0408
Electrodes specially adapted therefor
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
05
Measuring for diagnosis by means of electric currents or magnetic fields
053
Measuring electrical impedance or conductance of a portion of the body
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
17
Digital computing or data processing equipment or methods, specially adapted for specific functions
Applicants:
CAMBRIDGE HEART, INC. [US/US]; 1 Oak Park Drive Bedford, MA 01730, US
Inventors:
ALBRECHT, Paul; US
ARNOLD, Jeffrey, M.; US
JUDELL, Neil; US
COHEN, Richard, J.; US
Agent:
HAYDEN, John, F.; Fish & Richardson, P.C. Suite 500 North 601 13th Street, N.W. Washington, DC 20005, US
Priority Data:
08/339,03214.11.1994US
08/339,05014.11.1994US
08/379,37526.01.1995US
Title (EN) USING RELATED SIGNALS TO REDUCE ECG NOISE
(FR) UTILISATION DE SIGNAUX CONNEXES POUR REDUIRE LE BRUIT D'UN ELECTROCARDIOGRAMME
Abstract:
(EN) A method of reducing noise in a signal that represents a physiologic process includes obtaining multiple input signals (205), measuring a relationship between noise content of the input signals (210-225), and combining the input signals in consideration of the measured relationship to produce an output signal having a low noise content (230). The multiple input signals may include, for example, two or more primary physiologic input signals or one or more primary physiologic input signals and two or more secondary input signals that represent noise. The method may further include dividing one or more ECG input signals and secondary input signals into a set of segments, where each set of segments represents a beat of the ECG signal, measuring a relationship between noise content of corresponding points from successive sets of segments, and combining the input signals based on the measured relationship.
(FR) Méthode de réduction du bruit dans un signal qui représente un processus physiologique, consistant à obtenir plusieurs signaux d'entrée (205), à mesurer la relation entre le bruit des signaux d'entrée (210-225), et à combiner les signaux d'entrée compte tenu de la relation mesurée en vue de produire un signal de sortie dont le bruit est faible (230). Les signaux d'entrée multiples peuvent comprendre, par exemple, deux ou plus de deux signaux d'entrée physiologiques primaires, ou bien encore un ou plusieurs signaux d'entrée physiologiques primaires et deux ou plus de deux signaux d'entrée secondaires qui représentent le bruit. Par ailleurs, la méthode peut consister à diviser un ou plusieurs signaux d'entrée d'électrocardiogramme et signaux d'entrée secondaires en séries de segments, chaque série représentant un battement du signal de l'électrocardiogramme, et à mesurer la relation entre le bruit des points correspondants dans les séries de segments successives, puis à combiner les signaux d'entrée sur la base de la relation ainsi mesurée.
Designated States: DE, GB, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0957760