Abstract: A guide system for indicating an activator of a defibrillator to a user including a motion detection circuit which determines motion of the defibrillator and generates at least one defibrillator motion mode signal, and a guide circuit which receives the defibrillator motion mode signal and causes the activator to be indicated to the user of the defibrillator.

Abstract: A defibrillator is provided comprising an activation mechanism having an activator and a status indicator, wherein the activator is disposable in a first condition in which the defibrillator is deactivated and in a second condition in which the defibrillator is activated and the status indicator is operable in at least a first mode in which a ‘defibrillator ready’ status of the defibrillator is indicated and a second mode in which a ‘defibrillator not ready’ status of the defibrillator is indicated. By having an activation mechanism which includes the activator and the status indicator, users of the defibrillator are not confused between separate activation and status indication devices and are able to use the activator promptly.

Abstract: An electrode test system of a defibrillator including electrodes in a face-to-face test arrangement forming a capacitor, an impedance measurement signal generator connected to the electrodes and configured to send an ac signal to the electrodes, an impedance measurement signal processor connected to the electrodes which is placeable in an electrode test state and configured to receive an electrode test ac signal from the electrodes and process the electrode test ac signal to obtain a processed electrode test ac signal, a defibrillator processor connected to the impedance measurement signal generator and the impedance measurement signal processor configured to place the impedance measurement signal processor in the electrode test state and to receive the processed electrode test ac signal, analyze the processed electrode test ac signal to obtain an electrode test impedance signal and analyze the electrode test impedance signal to determine a pass condition or a fail condition of the electrodes.

Abstract: A defibrillator is provided comprising an activation mechanism having an activator and a status indicator, wherein the activator is disposable in a first condition in which the defibrillator is deactivated and in a second condition in which the defibrillator is activated and the status indicator is operable in at least a first mode in which a ‘defibrillator ready’ status of the defibrillator is indicated and a second mode in which a ‘defibrillator not ready’ status of the defibrillator is indicated. By having an activation mechanism which includes the activator and the status indicator, users of the defibrillator are not confused between separate activation and status indication devices and are able to use the activator promptly.

Abstract: A guide system for indicating an activator of a defibrillator to a user including a motion detection circuit which determines motion of the defibrillator and generates at least one defibrillator motion mode signal, and a guide circuit which receives the defibrillator motion mode signal and causes the activator to be indicated to the user of the defibrillator.

Abstract: An electrode test system of a defibrillator including electrodes in a face-to-face test arrangement forming a capacitor, an impedance measurement signal generator connected to the electrodes and configured to send an ac signal to the electrodes, an impedance measurement signal processor connected to the electrodes which is placeable in an electrode test state and configured to receive an electrode test ac signal from the electrodes and process the electrode test ac signal to obtain a processed electrode test ac signal, a defibrillator processor connected to the impedance measurement signal generator and the impedance measurement signal processor configured to place the impedance measurement signal processor in the electrode test state and to receive the processed electrode test ac signal, analyze the processed electrode test ac signal to obtain an electrode test impedance signal and analyze the electrode test impedance signal to determine a pass condition or a fail condition of the electrodes.