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Asystole Detection for CPR

A cardiac arrest and monitor technology, applied in applications, cardiac stimulation, cardiac defibrillators, etc., can solve problems such as wrong cardiac arrest rhythms

Active Publication Date: 2020-03-03
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, such shock advice techniques may incorrectly recommend shocks for asystolic rhythms that are not recommended by AHA and ERC guidelines

Method used

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  • Asystole Detection for CPR
  • Asystole Detection for CPR
  • Asystole Detection for CPR

Examples

Experimental program
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Effect test

Embodiment Construction

[0020] In a clean ECG waveform (eg, without any CC artifacts), the asystole rhythm shows an almost flat line, which indicates a state of no or low cardiac electrical activity in the patient's heart. During chest compressions, the asystolic rhythm of the ECG waveform is dominated by CC artifacts ("CC degraded ECG waveforms") or any filter residue when CC artifacts are filtered ("CC filtered ECG waveforms"). However, the present invention is premised on the discovery that several signal features preserved in both CC-degraded and CC-filtered ECG waveforms are able to distinguish asystole rhythms from other cardiac rhythms even during cardiac compressions, as herein to combine figure 2 Exemplary description.

[0021] One example of preserving signal characteristics is the magnitude spectral area ("AMSA"), which measures the area under the curve of the magnitude frequency spectrum over a specific frequency range. Another example of preserving signal characteristics is the first ...

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Abstract

A patient monitoring device (20) employs an ECG monitor (24) and a controller (26). The patient monitoring device (20) can be or include an automatic external defibrillator (AED), an advanced life support (ALS) defibrillator, and / or a patient monitor. In operation, the ECG monitor (24) monitors the patient's heart for a degraded ECG waveform (30), and the controller (26) classifies the degraded ECG waveform (30) as a non-shockable rhythm or a potentially shockable rhythm one of the. The degraded ECG waveform (30) is classified by the controller (26) as non-responsible in response to detection by the controller (26) of the presence of an asystole rhythm within the degraded ECG waveform (30). Shock rhythm. Conversely, the degraded ECG waveform (30) is responsive to detection by the controller (26) of the absence of the asystole rhythm within the degraded ECG waveform (30) and / or the controller ( 26) Classification by the controller (26) as the potentially shockable rhythm with uncertainty regarding the presence of the asystole rhythm within the degraded ECG waveform (30).

Description

technical field [0001] The present invention generally relates to the use of automated external defibrillators ("AEDs"), advanced life support ("ALS") defibrillators / monitors, patient monitors, and / or other medical devices with patient monitoring and / or defibrillation capabilities Monitoring of cardiopulmonary resuscitation ("CPR") of a patient. The present invention particularly relates to detection of asystolic, non-shockable rhythms during CPR of cardiac arrest patients. Background technique [0002] Often, automated analysis of ECG rhythms in patients with sudden cardiac arrest during CPR can be unreliable due to chest compression ("CC") artifacts on the ECG waveform. Techniques have been proposed to filter CC artifacts for automatic shock advice during CPR. However, during non-shockable rhythms, especially asystolic rhythms, the filter residue of CC artifacts can confuse the shock advice algorithm into thinking the rhythm is shockable because the filter residue or mec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N1/39A61B5/04A61B5/0468A61B5/361A61B5/364
CPCA61N1/3925A61B5/7221A61B5/4836A61N1/39044A61B5/364A61B5/361A61B5/347A61B5/7207A61B5/7217A61H31/005A61N1/3987
Inventor 韩澄宗S·巴巴埃萨德赫
Owner KONINKLJIJKE PHILIPS NV