Chest Compression Device

摘要

A chest compression device includes a piston to apply compression to the sternum and incorporates leaf springs simultaneously driven by the piston to apply lateral compression to the thorax during chest compressions. A motor in the chest compression device provides motive power to cyclically extend and contract the piston to provide therapeutic chest compressions. One end of each leaf spring is operably connected to the piston and the other end of each leaf spring is secured to the backboard/base or to a support leg of the chest compression device such that during extension of the piston, each leaf spring is compressed against the device base or leg which causes the springs to flex and provide lateral compression of the patient's thorax in addition to the sternal compression of the piston.

主权项

1. A device for performing mechanical cardiopulmonary resuscitation on a patient comprising:
a backboard; a piston support frame having two legs secured to the backboard, the two legs supporting a compression unit apposing the backboard; a reversible electromotor enclosed within the compression unit; a piston having a distal end and a proximal end, the proximal end of the piston operably coupled to the reversible electromotor, the distal end of the piston extending from and withdrawing into the housing, the chest compression unit secured to the mounting structure to engage a patient and perform chest compressions; two leaf springs, each leaf spring having a first end and a second end, the first end of each leaf spring operably secured to the piston, the second end of each leaf spring operably secured to one of the two legs, such that extension of the piston causes each leaf spring to form an arch.