Apparatus for monitoring a cardiac rhythm during cpr

A heart, rhythm technology, used in cardiac stimulation, cardiac defibrillators, applications, etc.

Active Publication Date: 2017-10-13
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods only provide an indication of whether CPR should be interrupted to perform

Method used

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  • Apparatus for monitoring a cardiac rhythm during cpr
  • Apparatus for monitoring a cardiac rhythm during cpr
  • Apparatus for monitoring a cardiac rhythm during cpr

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Embodiment Construction

[0041] The invented shock advice algorithm, termed Optimized Arrhythmia Recognition Technology (ART), generally applies the principles of the previously described wavelet transform analysis to the ECG signal stream, but instead utilizes a series of fixed frequency bandpass filters to replace the wavelet transform. A bank of bandpass filters is preferably constructed with frequency bins similar to the shape of Gaussian bins used to generate conventional Morlet wavelets.

[0042] The ART algorithm suppresses CPR artifact related noise by selectively passing relatively high frequency components of potentially corrupting ECG signals. ART is based on the inventor's realization that although CPR and an orderly heart rhythm can occur at a similar repetition rate of about 1 Hz to 2 Hz, typical CPR noise has relatively little high frequency content in its signal, i.e., the signal tends to be Smooth waves. Due to the rapid polarization and depolarization of the heart during a single c...

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PUM

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Abstract

A defibrillator and method for using a defibrillator which adopts an ECG analysis algorithm that can detect a cardiac arrhythmia in the presence of noise artifact induced by cardio pulmonary resuscitation (CPR) compressions. The apparatus and method offers guidance throughout a cardiac rescue protocol involving both defibrillation shocks and CPR that improves the effectiveness of the rescue, resulting in more CPR "hands-on" time, better treatment of refibrillation, and reduced transition times between CPR and electrotherapy.

Description

technical field [0001] The present invention relates to improved devices and methods for treating victims of cardiac arrest, and in particular those requiring treatment regimens including cardiopulmonary resuscitation (CPR) and defibrillation electrotherapy. Background technique [0002] Defibrillators deliver high voltage pulses to the heart to restore normal heart rhythm and systolic function in patients experiencing cardiac arrhythmias such as ventricular fibrillation (“VF”) or ventricular tachycardia (“VT”) without spontaneous circulation . There are several types of defibrillators, including manual defibrillators and automated external defibrillators ("AEDs"). AEDs differ from manual defibrillators in that AEDs can automatically analyze electrocardiogram ("ECG") rhythms to determine whether defibrillation is necessary. After a decision is made that a shock is required, the AED arms itself for delivering a electrotherapy shock, and then the AED advises the user to pres...

Claims

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Application Information

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IPC IPC(8): A61N1/39A61B5/04A61H31/00
CPCA61H31/005A61N1/3925A61B5/7405A61B5/7207A61B2505/01A61H2201/10A61H2230/045A61N1/3993A61B5/316A61B5/347A61N1/39044
Inventor S·E·格曼J·K·拉塞尔C·W·弗莱明D·B·乔根森D·R·阿克斯内斯
Owner KONINKLJIJKE PHILIPS NV
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