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1. (WO1997017015) EKG BASED HEART RATE MONITOR
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/017015 International Application No.: PCT/US1996/018349
Publication Date: 15.05.1997 International Filing Date: 07.11.1996
Chapter 2 Demand Filed: 02.06.1997
IPC:
A61B 5/024 (2006.01) ,A61B 5/0245 (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
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
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
0245
using sensing means generating electric signals
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:
SALUTRON, INC. [US/US]; Suite 212 39111 Paseo Padre Parkway Fremont, CA 94538, US (AllExceptUS)
LO, Thomas, Ying-Ching [US/US]; US (UsOnly)
TSAI, Yuh, Show [--/US]; US (UsOnly)
Inventors:
LO, Thomas, Ying-Ching; US
TSAI, Yuh, Show; US
Agent:
LANG, Dan, H. ; Townsend and Townsend and Crew L.L.P. Two Embarcadero Center 8th floor San Francisco, CA 94111-3834, US
Priority Data:
08/554,37308.11.1995US
Title (EN) EKG BASED HEART RATE MONITOR
(FR) MONITEUR DU RYTHME CARDIAQUE BASE SUR LES SIGNAUX ELECTROCARDIOGRAPHIQUES
Abstract:
(EN) A convenient, low cost, heart rate monitor. In one embodiment, a digital filter structure (64) includes a low pass filter having a notch at 60 Hz and a bandpass filter which amplifies signals in a frequency range from 10 Hz to 40 Hz and has a notch at 60 Hz. This digital filter has a recursive structure and uses integer coefficients to simplify and speed up the calculations. A four bit microcontroller (70) may implement the digital filter. The output of the digital filter is subject to enhancement signal processing to emphasize QRS complexes indicative of human heartbeats.
(FR) Moniteur commode et peu coûteux du rythme cardiaque. Selon l'un des modes de réalisation, une structure (64) de filtre numérique inclue un filtre passe-bas présentant une encoche à 60 Hertz et un filtre de bande passante qui amplifie les signaux dans une plage de fréquences de 10 à 40 Hertz et comporte un creux à 60 Hertz. Le filtre numérique présente une structure récurrente et utilise des coefficients entiers pour simplifier et accélérer les calculs. Un microcontrôleur (70) à 4 bits peut faire office de filtre numérique. Le produit de sortie du filtre numérique est soumis à un traitement de renforcement de signaux afin de faire ressortir les complexes ventriculaires rapides correspondants au rythme des battements du coeur humain.
Designated States: CA, JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0861045EP1201186CA2236877