Defibrillator with protocol for selectively interrupting cpr
AssigneeKoninklijke Philips N.V.
InventorsDAWN BLILIE JORGENSON, CHRISTIAN CARY, JAMIE FROMAN, KENNETH RUCKER
Life of this patent
Estimating the term…
Abstract
An automated external defibrillator (AED) (10) having a treatment decision processor (28) is described which estimates the probability of successful resuscitation made from an analysis of a patient parameter measured in the presence of CPR artifact. The invention may also adjust its analysis protocol and guidance outputs depending on a comparison of the estimate with a subsequent shock analysis. The invention also may use the trend of the measured patient parameter to adjust the CPR protocol either during a CPR pause or after the initial CPR pause. The AED (10) thus enables an improved rescue protocol.
Claims18
A defibrillator for detecting a shockable heart rhythm during CPR comprising:
- a high voltage circuit for delivering electrotherapy;
- an ECG front end circuit coupled to a source of ECG signals;
- a controller communicatively coupled to the ECG front end circuit, comprising
- a treatment decision processor responsive to the ECG signals which acts to estimate the likelihood of a shockable rhythm existent during a CPR period and which determines whether CPR should be interrupted prior to the end of the CPR period to deliver electrotherapy;
- and
- a user interface, responsive to the controller determination, which provides an output instruction to stop CPR and a subsequent output instruction to deliver electrotherapy through the high voltage circuit.
A method for delivering 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;
- 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 based on the determining step.
Dependencies are inferred from the claim text.