Abstract: Portable apparatus is provided for use by a rescuer in administering cardiopulmonary resuscitation to a patient or for use as a training aid in the application of cardiopulmonary resuscitation. A light weight, inflatable, fluid-filled, foam or other resilient cushion has a pressure gauge attached thereto, and the cushion is placed on the patient's chest. Force is applied by the rescuer onto the cushion and the pressure gauge displays the force applied so as to enable the rescuer to observe and control the force being applied to the patient's chest. A timer may also be provided with the pressure gauge to enable the rescuer to properly time the application and release of force to the patient's chest.

Abstract: A mechanical cardiac resuscitator which applies rhythmic pressure to a patient's chest in order to restore heart beat is provided with a control which may sound an alarm or turn off the resuscitator if the point of impact on the patient deviates from a predetermined area. In one form a conductive sheet disposed on the patient cooperates with electric contacts disposed on the plunger of the resuscitator.

Abstract: Effectiveness and safety of external cardiac resuscitation is increased by the use of a small inflatable "pillow" which has a pressure gauge calibrated to read out the downward force or pressure applied to the victim's chest. The device is placed on the victim's chest and force is applied onto the device allowing the user to observe and control the force or pressure being applied to the victim.