A Simulator of Human Chest that Simulated Force-Sternal Displacement Relationship during Cardiopulmonary Resuscitation
Survival from cardiac arrest is dependent on timely cardiopulmonary resuscitation (CPR). Experimental and modeling work had shown that the relationship between compression force and sternal displacement had a tendency of hysteresis curve, which in manikins was rather lineal. To improve the mechanical characteristics of the manikins, firstly, a simplified model of the human chests mechanical during CPR was deduced based on Grubens pre-result. After that, a variable-stiffness springs group-damper system was introduced to simulate the human chest. Through designing springs, damper, and the whole structure, the system was realized and tested. The test results showed that there were nonlinear elasticity and adequate viscosity in this system, whose coefficients were adjacent to Grubens ‘typical human. The simulation method could be used directly in manikin, whose mechanical character may be improved and then more adequate training may be provided.
Cardiopulmonary Resuscitation (CPR) ForcesternalDisplacement Relationship Manikin Hysteresis Curve Variable-stiffness springs group
Xie Xinwu Tian Feng Sun Qiuming Wang Zheng Ni Aijuan Hu Mingxi
Institute of Medical Equipment Academy of Military Medical Sciences Tianjin,P.R.China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）