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Method and apparatus for scoring reliability of shock recommendations during cardiopulmonary resuscitation

A cardiopulmonary resuscitation and reliability technology, applied in the direction of electrotherapy, application, cardiac defibrillator, etc., can solve the problems of potential rhythm error determination, error call, filter technology error filtering, etc., and achieve the effect of improving quality

Active Publication Date: 2017-08-15
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another limitation is that no known filtering technique is perfect
No matter how good the filtering is, there is almost always at least some residual error left on the ECG that could potentially lead to a wrong determination of the underlying rhythm by the AED shock advice algorithm
During non-shockable rhythms, especially during asystole, this imperfect filtering of CC artifacts may cause the shock advice algorithm to incorrectly call a shockable rhythm, since the residual may look like VF to said algorithm
On the other hand, for shockable rhythms such as VF, filtering techniques may falsely filter out some VF information, which may thus make the rhythm appear non-shockable to the shock advice algorithm
In conclusion, none of the previously known techniques has been shown to provide an accurate and generally acceptable satisfactory ECG from which sufficiently reliable shock decisions can be made

Method used

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  • Method and apparatus for scoring reliability of shock recommendations during cardiopulmonary resuscitation
  • Method and apparatus for scoring reliability of shock recommendations during cardiopulmonary resuscitation
  • Method and apparatus for scoring reliability of shock recommendations during cardiopulmonary resuscitation

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Embodiment Construction

[0033] With further reference to the accompanying drawings, figure 2 An exemplary 23 second ECG strip from a subject patient whose underlying cardiac rhythm is VF is illustrated. The first half of the waveform (left hand side 50) is recorded during CPR and the second half (right hand side 60) is recorded after CRP has been paused (eg, no chest compression artifacts on the ECG data). It can be seen that chest compression artifacts induced on the left hand side 50, ECG during CPR mask the underlying VF rhythm. Previously known shock advice algorithms when applied to the left hand side 50 may evaluate CPR artifacts as a regular ECG rhythm and incorrectly determine to advise no shock. This is the opposite of the evaluation of the right-hand 60 waveform without CPR artifacts. On the right hand side, the shock advice algorithm is able to accurately detect the VF rhythm and recommend a shock appropriately. therefore, figure 2 The problem of obtaining accurate ECG readings durin...

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Abstract

A method, system, and apparatus for detecting and using clean ECG segments that do not require filtering to remove artifacts are described to provide a reliability score for decisions made by a shock advice algorithm or CPR-induced noise. The method can be implemented in a system and / or device provided with a display for indicating to a user the determined relative quality of the electrotherapy analysis circuit.

Description

technical field [0001] The present invention generally relates to an improved method, system and apparatus for monitoring a subject's heart rhythm during application of cardiopulmonary resuscitation (CPR). More specifically, the present invention relates to a medical device that includes an improved diagnostic algorithm / method that analyzes patient physiological data during CPR and scores the reliability of the determination of whether an electrotherapy shock is indicated or not. If the device is a defibrillator, the reliability score provides guidance to the user and / or controls device electrotherapy circuitry based on the determination. Background technique [0002] Sudden cardiac arrest (SCA) is the leading cause of death in the United States. In approximately 40% of patients with sudden cardiac arrest (SCA), the initial cardiac rhythm observed is ventricular fibrillation (VF). CPR is a protocol treatment for SCA that includes providing cycles of chest compressions and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N1/39A61B5/00A61B5/0464A61B5/046A61B5/361A61B5/363
CPCA61B5/7221A61B5/053A61N1/39044A61N1/3925A61B5/316A61N1/39A61B5/346A61N1/3993
Inventor R·菲罗萨巴迪S·巴巴埃萨德赫
Owner KONINKLJIJKE PHILIPS NV