External defibrillator with shock activated by cessation of precordial compressions
AssigneeKoninklijke Philips N.V.
InventorDavid Snyder
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Abstract
A defibrillator having a pair of electrodes for delivering an artifact-compensated defibrillation shock and a method thereof is provided. The defibrillator can be deployed rapidly while administering a cardio-pulmonary resuscitation (CPR) on the patient. Upon detection of an end of the CPR operation, a correlation signal indicative of signal corruption is detected and analyzed rapidly to determine an appropriate energy level discharged across the pair of electrodes. Thereafter, a notification signal is sent to the user of the defibrillator prior to delivering the defibrillation shock to the patient. The artifact-compensated defibrillation shock is delivered if for a predetermined period of time no movements is detected.
Claims17
A method for delivering a defibrillation shock using a defibrillator, the method comprising the steps of:
- (a) having the defibrillator initiate a cardio-pulmonary resuscitation (CPR) interval;
- (b) prior to an end of the cardio-pulmonary resuscitation (CPR) interval, analyzing the ECG signal for signal corruption and, if a cessation or absence of CPR precordial compressions is indicated by substantially no signal corruption;
- (c) analyzing an ECG signal prior to the end of the originally initiated cardio-pulmonary resuscitation (CPR) interval to determine if a defibrillation shock is needed;
- and,
- (d) delivering a defibrillation shock if the analyzing step (c) indicates that a defibrillation shock is needed.
A method for delivering a defibrillation shock using a defibrillator, the method comprising the steps of:
- prompting a start of a CPR therapy interval;
- detecting an indication of CPR precordial compression cessation during the CPR therapy interval;
- and,
- arming the AED for defibrillation shock delivery based on the detected cessation of precordial compressions detected during the CPR therapy interval.
A method for delivering a defibrillation shock using a defibrillator, the method comprising the steps of:
- coupling a plurality of sensors to the patient's body to detect physiological signals of the patient;
- initiating a predetermined CPR therapy interval during which precordial compressions are to be administered to the patient;
- monitoring a physiological signal received from at least one of the sensors to detect a cessation of precordial compression administration prior to the end of the predetermined CPR therapy interval;
- upon detecting a cessation of precordial compression administration prior to the end of the predetermined therapy interval, obtaining ECG signals from a plurality of the sensors;
- analyzing the obtained ECG signals to determine whether a defibrillation shock is needed;
- and
- if the analyzing step determines that a defibrillation shock is needed, delivering a defibrillation shock to the patient through a plurality of the sensors.
Dependencies are inferred from the claim text.