Standalone system for assisting in a life-saving situation

A method for monitoring parameters during cardiopulmonary resuscitation of a subject, the method comprising:

• measuring compression;
• measuring ventilation;
• comparing the compression and ventilation measurements with respective reference ranges, and if at least one of the compression and ventilation measurements deviate from the respective reference range, providing an indication of the deviation,
• and in the case of more than one of the compression and ventilation measurements deviating from the respective reference ranges, providing a sequence of indications in a prioritized order, wherein the prioritized order is determined by the respective deviations from the respective reference ranges for the more than one of the compression and ventilation measurements and further based on which of the compression and ventilation acts of the cardiopulmonary resuscitation are more medically critical.

A compression unit positionable on a subject's chest comprising:

• a compression sensor operable to produce a compression output corresponding to a compression depth;
• a processor connected to the compression sensor and programmed to compare the compression output with a reference range and, if the compression output falls within the reference range, provide an indication signal;
• and
• a feedback unit connected to the processor for providing a tactile output corresponding to the indication signal, wherein the tactile output is created when an actuated magnetic core displaces and taps a user of the compression unit, wherein the tap of the magnetic core on the user is configured to inform the user to adjust compressions.