Nysaether Jon B, Dorph Elizabeth, Rafoss Ivan, Steen Petter A
Laerdal Medical, 4002 Stavanger, Norway.
IEEE Trans Biomed Eng. 2008 Nov;55(11):2643-50. doi: 10.1109/TBME.2008.2001289.
Commercially available training manikins for cardiopulmonary resuscitation (CPR) do not accurately mimic the mechanical properties of human chests. This may limit the usefulness of CPR research performed on such manikins. This paper presents the construction of manikins with chest properties matching those measured in patients during an ongoing CPR. The chest stiffness and damping of 59 cardiac arrest patients was measured during out-of-hospital CPR, using a defibrillator with a compression sensor with built-in force sensor and accelerometer. A manikin with eight interchangeable chest force-depth profiles, representing the measured range of chest stiffness and the average damping of these patients, was then specified and constructed. The stiffness and damping of the manikins were verified using the same equipment and method as was used during data collection. Between 30 and 50 mm compression depth, the force-depth relationship of all eight manikins were found to be within +/-30 N of force or +/-2 mm of depth from the reference specifications derived from measurements on patients' chests. The average damping was also found to closely match the specified value.
市售的用于心肺复苏（CPR）的训练人体模型无法准确模拟人体胸部的力学特性。这可能会限制在此类人体模型上进行的心肺复苏研究的实用性。本文介绍了构建胸部特性与正在进行心肺复苏的患者所测特性相匹配的人体模型的过程。在院外心肺复苏期间，使用带有内置力传感器和加速度计的压缩传感器的除颤器，测量了59名心脏骤停患者的胸部刚度和阻尼。然后确定并构建了一个具有八个可互换胸部力-深度曲线的人体模型，这些曲线代表所测胸部刚度范围和这些患者的平均阻尼。使用与数据收集期间相同的设备和方法对人体模型的刚度和阻尼进行了验证。在30至50毫米的压缩深度之间，发现所有八个人体模型的力-深度关系在根据患者胸部测量得出的参考规格的力的±30牛或深度的±2毫米范围内。还发现平均阻尼与指定值密切匹配。
