Patent ID: 9724529
Date: 2017-08-08
CPC Classifications: A61N

Claim:
1. A method for optimizing guidance instructions for delivering cardio-pulmonary resuscitation and electrotherapy from a defibrillator comprising the steps of: providing a source of patient ECG signals received during a CPR period; estimating from the patient ECG signals the likelihood of a shockable rhythm existent during the CPR period, wherein the estimating step comprises a vRhythm calculation which includes the effects of CPR artifact to determine a return of spontaneous circulation (ROSC) score, the ROSC score indicating the likelihood of a shockable rhythm existent during the CPR period, and wherein the vRhythm calculation includes a frequency bandwidth which acts to suppress the effects of CPR artifact on the ROSC score; determining whether CPR should be interrupted prior to the end of the CPR period to deliver electrotherapy based on the estimating step; and providing an output instruction from the defibrillator to stop CPR prior to the end of the CPR period based on the determining step.