Processing

Please wait...

Settings

Settings

Goto Application

1. US20100331708 - MONITORING CARDIOVASCULAR CONDITIONS USING SIGNAL TRANSIT TIMES

Office United States of America
Application Number 12822122
Application Date 23.06.2010
Publication Number 20100331708
Publication Date 30.12.2010
Publication Kind A1
IPC
A61B 5/02
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
Applicants Edwards Lifesciences Corporation
Inventors Hatib Feras
Agents EDWARDS LIFESCIENCES CORPORATION
Title
(EN) MONITORING CARDIOVASCULAR CONDITIONS USING SIGNAL TRANSIT TIMES
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.