CAD/CAM transtibial prosthetic sockets from central fabrication facilities: How accurate are they?
CAD/CAM transtibial prosthetic sockets from central fabrication facilities: How accurate are they?
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DOI：
10.1682/jrrd.2006.06.0069
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发表时间：
2007-01-01
影响因子：
--
通讯作者：
Abrahamson, Daniel C.
中科院分区：
文献类型：
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作者：
Sanders, Joan E.;Rogers, Ellen L.;Abrahamson, Daniel C.
这项研究将中央制造设施制造的经胫骨假肢接受腔与其相应的美国矫形师和假肢学会 (AAOP) 电子形状文件进行比较，并评估中央制造过程。我们向 10 个制造商各订购了三种不同形状的插座。然后，我们使用非常精确的定制机械数字化仪对插座进行数字化。结果表明，不同制造商的质量差异很大。其中四家公司始终在 AAOP 电子形状文件的 +/-1.1% 体积（大约 1 层袜子）内制造插座，而其他六家公司则没有。其中六家公司的插座尺寸始终偏小或过大，这表明存在一致的校准或制造错误。其他公司表现出尺寸不一致或形状扭曲，这是一个难题，对中央制造设施来说是最具挑战性的限制。
This research compares transtibial prosthetic sockets made by central fabrication facilities with their corresponding American Academy of Orthotists and Prosthetists (AAOP) electronic shape files and assesses the central fabrication process. We ordered three different socket shapes from each of 10 manufacturers. Then we digitized the sockets using a very accurate custom mechanical digitizer. Results showed that quality varied considerably among the different manufacturers. Four of the companies consistently made sockets within +/-1.1% volume (approximately 1 sock ply) of the AAOP electronic shape file, while six other companies did not. Six of the companies showed consistent undersizing or oversizing in their sockets, which suggests a consistent calibration or manufacturing error. Other companies showed inconsistent sizing or shape distortion, a difficult problem that represents a most challenging limitation for central fabrication facilities.