Processing

Please wait...

Settings

Settings

Goto Application

1. WO2011008477 - MONITORING CARDIOVASCULAR CONDITIONS USING SIGNAL TRANSIT TIMES

Publication Number WO/2011/008477
Publication Date 20.01.2011
International Application No. PCT/US2010/040059
International Filing Date 25.06.2010
IPC
A61B 5/0402 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
A61B 5/0205 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
02Measuring 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
0205Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
CPC
A61B 5/02
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
02Detecting, measuring or recording 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 or electroauscultation; Heart catheters for measuring blood pressure
A61B 5/021
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
02Detecting, measuring or recording 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 or electroauscultation; Heart catheters for measuring blood pressure
021Measuring pressure in heart or blood vessels
A61B 5/02125
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
02Detecting, measuring or recording 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 or electroauscultation; Heart catheters for measuring blood pressure
021Measuring pressure in heart or blood vessels
02108from analysis of pulse wave characteristics
02125of pulse wave propagation time
A61B 5/02405
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
02Detecting, measuring or recording 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 or electroauscultation; Heart catheters for measuring blood pressure
024Detecting, measuring or recording pulse rate or heart rate
02405Determining heart rate variability
A61B 5/0285
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
02Detecting, measuring or recording 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 or electroauscultation; Heart catheters for measuring blood pressure
026Measuring blood flow
0285Measuring or recording phase velocity of blood waves
A61B 5/029
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
02Detecting, measuring or recording 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 or electroauscultation; Heart catheters for measuring blood pressure
026Measuring blood flow
029Measuring or recording blood output from the heart, e.g. minute volume
Applicants
  • EDWARDS LIFESCIENCES CORPORATION [US]/[US] (AllExceptUS)
  • HATIB, Feras [BG]/[US] (UsOnly)
Inventors
  • HATIB, Feras
Agents
  • CRAPENHOFT, Michael
Priority Data
12/822,12223.06.2010US
61/221,23829.06.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MONITORING CARDIOVASCULAR CONDITIONS USING SIGNAL TRANSIT TIMES
(FR) SURVEILLANCE DE CONDITIONS CARDIOVASCULAIRES À L'AIDE DE TEMPS DE TRANSIT DU SIGNAL
Abstract
(EN)
Methods for monitoring cardiovascular conditions, i.e., hyperdynamic circulation, vasodilation, vasoconstriction, or central-to-peripheral arterial pressure decoupling conditions are described. These methods involve measuring a central signal proportional to or a function of the subject's heart activity and a peripheral signal proportional to or a function of a signal related to the central signal. Then calculating a time difference between features in the central and peripheral signals representing the same heart event. The cardiovascular condition is indicated if the time difference is greater or lower than a threshold value, if the time difference is greater or lower than a threshold value over a specified period of time, or if there is a significant statistical change in the times over the specified time period. These methods can alert a user that a subject is experiencing the cardiovascular condition, which can enable a clinician to appropriately provide treatment to the subject.
(FR)
L'invention décrit des procédés de surveillance de conditions cardiovasculaires, à savoir la circulation hyperdynamique, la vasodilatation, la vasoconstriction ou les conditions de découplage de la pression artérielle centrale en pression artérielle périphérique. Ces procédés mettent en jeu la mesure d'un signal central proportionnel ou fonction de l'activité cardiaque du sujet et d'un signal périphérique proportionnel ou fonction d'un signal lié au signal central. La différence de temps entre des caractéristiques dans les signaux central et périphérique représentant le même événement cardiaque est ensuite calculée. La condition cardiovasculaire est indiquée si la différence de temps est supérieure ou inférieure à une valeur de seuil, si la différence de temps est supérieure ou inférieure à une valeur de seuil sur une période de temps spécifiée, ou si l'on observe un changement statistique significatif des durées sur la période de temps spécifiée. Ces procédés peuvent alerter un utilisateur qu'un sujet souffre d'une condition cardiovasculaire, qui peut demander à un médecin d'administrer un traitement approprié au sujet.
Latest bibliographic data on file with the International Bureau