page_title: AutoPulse
section_title: Mechanism of CPR blood flow
hierarchical_section_title: AutoPulse / Mechanism of CPR blood flow
caption_attribution_description: English: Illustration of the direction of pressure of a cardiac compression on a heart
context_page_description: The AutoPulse is an automated, portable, battery-powered cardiopulmonary resuscitation device created by Revivant and subsequently purchased and currently manufactured by ZOLL Medical Corporation. It is a chest compression device composed of a constricting band and half backboard that is intended to be used as an adjunct to CPR during advanced cardiac life support by professional health care providers. The AutoPulse uses a distributing band to deliver the chest compressions. In literature it is also known as LDB-CPR.
  The AutoPulse measures chest size and resistance before it delivers the unique combination of thoracic and cardiac chest compressions. The compression depth and force varies per patient. The chest displacement equals a 20% reduction in the anterior-posterior chest depth. The physiological duty cycle is 50%, and it runs in a 30:2, 15:2 or continuous compression mode, which is user-selectable, at a rate of 80 compressions-per-minute.
context_section_description: The load-distributing band system, employing thoracic compressions, produces higher blood flow compared to CPR consisting of sternal compressions only. The potential to produce blood flow for a sudden cardiac arrest victim is in large part determined by the peak power of the compression. Factors determining the power of the compression are the force of the compression, the depth of the compression, and the duration that the compression is held at maximum depth.
caption: Cardiac Pump - Compresses mainly the heart
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