AT281114T

System for continuous estimation and display of cardiac ejection fraction and end diastolic volume

Abstract

The invention is on a display (for example and heat) to the dilute model the parameter to redirect teat dip on the heart to the seedling to count (EF) to the central to prevent estimation. A are arranged at the central major is made with is arranged on the atrium/ventricle for example heater and display refillers and located at the central lower parts for example thermistor and display concentration detecting elements which a channel model. The basin model is a normal transmission function of lag, a of the output parameters of blood face display quantities of attenuation τ. The measuring are prepared heart rate. A EF=1-EXP (-60/(τ *HR))The continuous computation shoot the menstruation to count (EF). The basin algorithm based on lag normal transmission function of zero-frequency gain, the model can also estimate for cardiac value of measuring pump (CO). Diastole end of the period coil (EDV) and CO, HR and EF function, a continuous computation the obtain. The display concentration detecting element of the reaction for display is slow, advanced determined detecting element (function Hs, wherein the parameter preservation of the storage device, a transmission function data for measuring steps of the bedstead, triangular is Hs first, to enhance the EF measuring accuracy.

Term

No projected expiry on record.

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21 members in 12 offices

This recordMember, by publication datePriority claim2 more offices are in the list below

Priority claims2

Priority claims
DocumentOfficeKindDate
9439098United States of AmericaA
9912716United States of AmericaW

Members21

Family members, oldest first
DocumentOfficeKind
CA2333452A1CanadaA1
WO9963887A1World Intellectual Property Organization (WIPO)A1
AU4550499AAustraliaA
US6045512AUnited States of AmericaA
EP1085836A1European Patent Office (EPO)A1
KR20010072590ARepublic of KoreaA
BR9911124ABrazilA
CN1315845AChinaA
JP2002517271AJapanA
AU750005B2AustraliaB2
KR100416894B1Republic of KoreaB1
EP1085836B1European Patent Office (EPO)B1
AT281114TThis recordAustriaT
ATE281114T1AustriaT1
DE69921652D1GermanyD1
JP3600527B2JapanB2
ES2228059T3SpainT3
CN1216569CChinaC
DE69921652T2GermanyT2
CA2333452CCanadaC
BR9911124B1BrazilB1