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Defibrillator and method using limb leads for artifact free ECG

A defibrillator and connector technology, applied in the direction of cardiac defibrillators, applications, sensors, etc., can solve problems such as discomfort and unsuitability for diagnosis

Active Publication Date: 2015-12-23
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of these filtering methods are suitable for use in determining automatic shock decisions or for diagnosing cardiac conditions

Method used

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  • Defibrillator and method using limb leads for artifact free ECG
  • Defibrillator and method using limb leads for artifact free ECG
  • Defibrillator and method using limb leads for artifact free ECG

Examples

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Embodiment Construction

[0035] With further reference to the accompanying drawings, Figure 5 An exemplary 23 second ECG strip from a subject patient with no basal rhythm is illustrated. The top panel indicates the ECG signal obtained from the therapy pad during CPR. ECG trace 52 indicates a pure CPR artifact on the therapy pad. The bottom panel shows the impedance between the pads, where each pad corresponds to a CPR compression. Thus, bottom trace 54 indicates pure CPR-induced therapy pad impedance. Depend on Figure 5 Large corresponding oscillations (>20 millivolts (mV)) can be seen in the pad ECG, which are CPR artifacts. The ECG amplitude scale is -16 to 16mV. The corresponding impedance varies between +113 milliohms (mOhm) and 92mOhm, where the impedance magnitude scales from +113.82 to +83.82mOhm.

[0036] Image 6 Another exemplary 23 second ECG strip from a subject patient with no basal rhythm is illustrated. The top panel indicates the ECG signal obtained from the lead II monitorin...

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PUM

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Abstract

A defibrillator and method that uses ECG signals from limb lead electrodes for display and monitoring, even when a separate set of therapy pads are present at the patient. The limb lead ECG signal is used for display and to determine whether electrotherapy is necessary. The determination is a prerequisite to arming and delivery of the electrotherapy.

Description

technical field [0001] The present invention generally relates to an improved method, device and system for monitoring the heart rhythm of a subject during the application of cardiopulmonary resuscitation (CPR). More specifically, the present invention relates to a medical device capable of automatically selecting a set from among sets of electrocardiogram (ECG) electrodes with reduced CPR noise artifacts for display and for use in determining whether an electrotherapy shock is indicated. If the device is a defibrillator, the method can control the device electrotherapy circuitry based on the shock advice obtained from the lower noise electrode set. 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 chest compressions and providing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/39
CPCA61N1/39044A61N1/39A61B5/282A61B5/339A61B5/7207A61N1/046A61N1/3925A61N1/3993
Inventor E·黑尔芬拜因S·巴巴埃萨德赫S·H·周
Owner KONINKLJIJKE PHILIPS NV
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