PDF(Pubmed)
Abstract：
Changes in limb volume and shape among transtibial amputees affects socket fit and comfort. The ability to accurately measure residual limb volume and shape and relate it to comfort could contribute to advances in socket design and overall care. This work designed and validated a novel 3D laser scanner that measures the volume and shape of residual limbs. The system was designed to provide accurate and repeatable scans, minimize scan duration, and account for limb motion during scans. The scanner was first validated using a cylindrical body with a known shape. Mean volumetric errors of 0.17% were found under static conditions, corresponding to a radial spatial resolution of 0.1 mm. Limb scans were also performed on a transtibial amputee and yielded a standard deviation of 8.1 ml (0.7%) across five scans, and a 46 ml (4%) change in limb volume when the socket was doffed after 15 minutes of standing.
摘要：
经胫骨截肢者肢体体积和形状的变化会影响承窝的贴合性和舒适性。精确测量残肢体积和形状并将其与舒适度相关联的能力可能有助于插座设计和整体护理的进步。这项工作设计并验证了一种新颖的3D激光扫描仪，可以测量残肢的体积和形状。该系统旨在提供准确和可重复的扫描，最小化扫描持续时间,并解释扫描过程中的肢体运动。首先使用具有已知形状的圆柱体对扫描仪进行验证。在静态条件下，平均体积误差为0.17%，对应于0.1毫米的径向空间分辨率。还对胫骨截肢者进行了肢体扫描，五次扫描的标准偏差为8.1ml（0.7％）。和46毫升（4％）的肢体体积的变化时，脱窝后15分钟的站立。
