초록 ▼

Presented is an apparatus operable to compress the chest of a person whose heart has stopped so as to initiate and maintain the flow of blood through the body during a cardiopulmonary resuscitation procedure. Structurally, the apparatus includes a carrying case containing a motor for driving an actu

Presented is an apparatus operable to compress the chest of a person whose heart has stopped so as to initiate and maintain the flow of blood through the body during a cardiopulmonary resuscitation procedure. Structurally, the apparatus includes a carrying case containing a motor for driving an actuator mechanism for actuating a pair of hydraulic cylinders connected together in a “slave”arrangement. The “slave”cylinder is mounted on a platform adapted to be strapped to the chest of the victim, with the “slave”cylinder having a ram that pushes rhythmically against the sternum to squeeze the heart between the sternum and backbone of the victim. A breathing apparatus (pulmonary resuscitator) may be driven by the motor in concert with the compression function to inflate the victim\s lungs with air and thus supply oxygen to the blood stream.

대표청구항 ▼

A heart massage apparatus for application to a victim whose heart has stopped beating and adapted to impose in a predetermined timed sequence pressure on the sternum of the victim sufficient to periodically compress the chest of the victim to thereby compress the heart between the sternum and backbo

A heart massage apparatus for application to a victim whose heart has stopped beating and adapted to impose in a predetermined timed sequence pressure on the sternum of the victim sufficient to periodically compress the chest of the victim to thereby compress the heart between the sternum and backbone of the victim, comprising: (a) means generating a source of periodic pressure sufficient when applied to the sternum of the victim to compress the chest sufficiently to thereby compress the heart of the victim between the sternum and the backbone of the victim; and (b) means adapted to be attached to the chest of the victim cooperating with said means for generating periodic pressure to periodically apply in a timed sequence sufficient pressure on the sternum of the victim to periodically compress the victim\s chest whereby the victim\s heart is periodically compressed between the victim\s sternum and backbone; (c) said means for generating periodic pressure including an electric motor, a gear reduction unit driven by said motor and providing a high torque low RPM power shaft, an actuator control assembly mounted on said power shaft and rotatable therewith and providing a crank shaft adapted to rotate in a circular path about the power drive shaft, a master hydraulic cylinder having a reciprocable hydraulic ram one end of which is pivotally connected to said crank shaft, said hydraulic ram generating periodic hydraulic pressure in said master hydraulic cylinder when said ram is reciprocated, and means connecting said master hydraulic cylinder to said means adapted to be attached to the chest of the victim whereby the pressure generated by said master cylinder is effective to compress the victim\s chest.