Abstract:
A method for improving the cardiac output of a patient who is suffering from pulseless electrical activity or shock and yet still displays some myocardial wall motion including sensing myocardial activity to determine the presence of residual left ventricular pump function having a contraction or ejection phase and a filling or relaxation phase. In such cases, a compressive force is repeatedly applied to the chest based on the sensed myocardial activity such that the compressive force is applied during at least some of the ejection phases and is ceased during at least some of the relaxation phases to permit residual cardiac filling, thereby enhancing cardiac output and organ perfusion. Also incorporated may be a logic circuit capable of utilizing multiple sensing modalities and optimizing the synchronization pattern between multiple phasic therapeutic modalities and myocardial residual mechanical function.
Abstract:
A resuscitation device for assisting a rescuer in resuscitating a patient. A handheld computing/communication device may be configured for performing a non-resuscitation function during time periods when resuscitation is not required, the handheld device may be further configured to provide CPR prompts during time periods when used by a rescuer to assist in resuscitation, and a sensor may be provided to measure a parameter (e.g., chest acceleration) relevant to resuscitation. A CPR-assistance element may be configured to be applied to the patient and to communicate with the handheld computing/communication device.