Invention of Device for Measuring Cardiac Compression Rates and the Depth for the Cardio-Pulmonary Resuscitation Manikin

Abstract

Manikins that simulate cardiopulmonary resuscitation (CPR) are used to teach personnel how to execute it. Modern cardiac resuscitation manikins are still low-fidelity designs in terms of anatomy and physiology. Designing a manikin with a cardiac and respiratory system, as well as integrated flow sensors to track cardiac output and air displacement in response to cardiopulmonary resuscitation, was the main goal of this research. A polyoxy-methylene rib cage joined to a vertebral column from an anatomical female model was used to create this manikin in line with anatomical proportions. The respiratory system was made up of a polyvinyl chloride bronchus, a latex trachea, and silicon-coated memory foam that mimicked lungs. The pulmonary and aortic arteries were represented by two sets of latex tubing, while the ventricles and aggregated abdominal volumes were represented by latex balloons, respectively. These components made up the cardiovascular system. These balloons were inserted into polyether foam and filled with blood from a life/form simulation. Flow sensors were installed in the respiratory and cardiovascular systems to collect data in reaction to chest compressions. On this manikin, three non-medical individuals applied chest compressions that produced data proportional to force-displacement while the flow sensors supplied feedback. The force-displacement experiments performed on this manikin demonstrate an advantageous nonlinear behavior that mimics the chest compressions used during cardiopulmonary resuscitation in humans. A considerable amount of information on the internal effects of cardiopulmonary resuscitation is also provided by the flow sensors. To sum up, scientifically developed and anatomically accurate designs of cardiopulmonary resuscitation manikins that incorporate flow sensors can enhance physiological fidelity and offer helpful feedback data.