CPR time indicator for a defibrillator data management system
View Patent ↗A system is disclosed wherein patient data, such as an electrocardiogram (“ECG”) signal or a chest impedance measurement signal, collected by a defibrillator device during a resuscitation event is analyzed and processed by a computing device to provide an assessment of CPR administered during the event. The CPR assessment results in one or more CPR figures of merit that relate to temporal characteristics of the CPR relative to the duration of the event. In one embodiment, the CPR figure of merit represents a percentage of the event period during which chest compressions were administered to the patient.
1. An apparatus comprising a processor configured to:
receive post-event data for a patient, the post-event data representing at least one patient signal electronically captured during a resuscitation event;
analyze characteristics of the post-event data to identify periods during which chest compressions were administered to the patient;
derive a CPR figure of merit from the post-event data, the CPR figure of merit being indicative of temporal characteristics of CPR administered to the patient, relative to the resuscitation event; and
obtain an event time interval for the resuscitation event,
in which the resuscitation event includes at least one interval of chest compression delivery and at least one interval of defibrillation therapy delivery, and
in which the CPR figure of merit comprises a temporal CPR percentage representing a percentage of the event time interval during which chest compressions were administered to the patient.
2. The apparatus of claim 1 , in which the processor is further configured to analyze characteristics of the post-event data to identify times during the resuscitation event when defibrillation pulses were administered to the patient, and in which the CPR figure of merit comprises a pre-defibrillation pause indicator that represents a period between a defibrillation pulse and a final chest compression administered to the patient prior to the defibrillation pulse.
3. The apparatus of claim 1 , in which the processor is further configured to analyze characteristics of the post-event data to identify times during the resuscitation event when defibrillation pulses were administered to the patient, and in which the CPR figure of merit comprises a post-defibrillation pause indicator that represents a period between a defibrillation pulse and an initial chest compression administered to the patient subsequent to the defibrillation pulse.
4. The apparatus of claim 1 , in which the processor is further configured to analyze characteristics of the post-event data to identify times during the resuscitation event when individual chest compressions were administered to the patient during a CPR cycle, and in which the CPR figure of merit comprises a compression frequency indicator that represents a period between the individual chest compressions.
5. The apparatus of claim 1 , in which the processor is further configured to analyze characteristics of the post-event data to identify CPR cycles during the resuscitation event, and in which the CPR figure of merit comprises a CPR cycle indicator that represents a period between the CPR cycles.
6. The apparatus of claim 1 , in which the processor is further configured to generate a report containing the CPR figure of merit.
7. A non-transitory computer-readable storage medium comprising instructions for causing a programmable processor to:
receive post-event data for a patient, the post-event data representing at least one patient signal electronically captured during a resuscitation event;
analyze characteristics of the post-event data to identify periods during which chest compressions were administered to the patient;
derive a CPR figure of merit from the post-event data, the CPR figure of merit being indicative of temporal characteristics of CPR administered to the patient, relative to the resuscitation event; and
obtain an event time interval for the resuscitation event,
in which the resuscitation event includes at least one interval of chest compression delivery and at least one interval of defibrillation therapy delivery, and
in which the CPR figure of merit comprises a temporal CPR percentage representing a percentage of the event time interval during which chest compressions were administered to the patient.
8. The computer-readable storage medium of claim 7 , in which the instructions further comprise instructions that cause the programmable processor to analyze characteristics of the post-event data to identify times during the resuscitation event when defibrillation pulses were administered to the patient, and in which the CPR figure of merit comprises a pre-defibrillation pause indicator that represents a period between a defibrillation pulse and a final chest compression administered to the patient prior to the defibrillation pulse.
9. The computer-readable storage medium of claim 7 , in which the instructions further comprise instructions that cause the programmable processor to analyze characteristics of the post-event data to identify times during the resuscitation event when defibrillation pulses were administered to the patient, and in which the CPR figure of merit comprises a post-defibrillation pause indicator that represents a period between a defibrillation pulse and an initial chest compression administered to the patient subsequent to the defibrillation pulse.
10. The computer-readable storage medium of claim 7 , in which the instructions further comprise instructions that cause the programmable processor to analyze characteristics of the post-event data to identify times during the resuscitation event when individual chest compressions were administered to the patient during a CPR cycle, and in which the CPR figure of merit comprises a compression frequency indicator that represents a period between the individual chest compressions.
11. The computer-readable storage medium of claim 7 , in which the instructions further comprise instructions that cause the programmable processor to analyze characteristics of the post-event data to identify CPR cycles during the resuscitation event, and in which the CPR figure of merit comprises a CPR cycle indicator that represents a period between the CPR cycles.
12. The computer-readable storage medium of claim 7 , in which the instructions further comprise instructions that cause the programmable processor to generate a report containing the CPR figure of merit.