Patent ID: 9585603
Date: 2017-03-07
CPC Classifications: A61B,A61H,A61N,G01B,G09B

Claim:
1. A device for determination of at least one compression parameter during administration of cardiopulmonary resuscitation (CPR) on a patient comprising: a position sensor including a field generator adapted to generate a field; a reference sensor including a field detector adapted to detect the field generated by the field generator and generate a response signal; wherein the field generator comprises at least one field generating coil and the field detector comprises at least one field detecting coil, and the generated field is an electromagnetic field, wherein at least one of the field generator and the field detector comprises at least three orthogonally wound field generating coils or field detecting coils, respectively, a defibrillator unit having two defibrillator pads; a processor adapted to determine, from the response signal, position and/or orientation information for the field detector relative to the field generator, to determine the at least one compression parameter using the determined position and/or orientation information of the field detector, the at least one compression parameter including a compression angle, and to determine whether a rescuer is administering CPR at an effective or desired compression angle to the patient's chest, the processor being provided in the defibrillator unit; wherein the position sensor is attached to or embedded in one of the two defibrillator pads which is configured to be placed on the patient's chest, and the reference sensor is attached to or embedded in the other of two defibrillator pads configured to be placed at a different location on the patient's chest; wherein the position sensor is adapted to move in accordance with the patient's chest and the reference sensor is adapted to be stationary relative to the patient, and wherein the position sensor is configured to determine a position of the one of the two defibrillator pads having the position sensor relative to the other of the two defibrillator pads having the reference sensor in order to determine if the rescuer is administering CPR at the effective or desired angle to the patient's chest and/or instruct the rescuer in maintaining the effective or desired compression angle.