Print-A-Punch: A 3D printed device to cut dumbbell-shaped specimens from soft tissue for tensile testing.
Print-A-Punch: A 3D printed device to cut dumbbell-shaped specimens from soft tissue for tensile testing.
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DOI：
10.1016/j.jbiomech.2020.110011
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发表时间：
2020-11-09
影响因子：
2.4
通讯作者：
Lujan TJ
中科院分区：
文献类型：
--
作者：
Nelson SJ;Creechley JJ;Wale ME;Lujan TJ
软组织的破坏行为和力学特性可以通过对小截面试件进行单轴拉伸试验来表征，这种试件被称为测试片。用于拉伸测试的理想试片几何形状是哑铃形(狗骨)，然而，制作定制的钢冲头来切割哑铃形试片所需的成本和时间阻碍了它们在生物力学研究中的广泛应用。在这项研究中，我们开发了一种经济可靠的切割装置，可以从软组织中提取哑铃形的息肉。这种名为Print-A-Punch的新型设备使用了三维(3D)打印组件，并结合了标准紧固件和可更换的柔性剃须刀。我们确定了影响使用该切割设备提取的弹性体片的尺寸精度和对称性的设计因素，并展示了其在牛半月板上的应用。这种3D打印设备的优点包括快速制造时间、低材料成本、良好的精度(在目标尺寸的5%以内)、可更换的刀片，以及能够针对特定组织和实验缩放优惠券尺寸。通过减少切割精确哑铃形试片的成本和时间，这项技术可以促进标准测试方法的广泛采用，从而提高软组织生物组织拉伸测试的质量和重复性。研究人员可以从这项研究中免费下载一套STL文件来构建他们自己的打印打孔设备(https://boisestate.edu/coen-ntm/technology/print-a-punch).
The failure behavior and mechanical properties of soft tissue can be characterized by conducting uniaxial tensile tests on small sectioned specimens, called test coupons. An ideal coupon geometry for tensile testing is a dumbbell shape (dog-bone), yet the cost and time required to fabricate custom steel punches to cut dumbbell-shaped coupons has hindered their universal application in biomechanics research. In this study, we developed an economical and reliable cutting device that can extract dumbbell-shaped coupons from soft biological tissue. The novel device, called Print-A-Punch, uses three-dimensional (3D) printed components in combination with standard fasteners and replaceable flexible razors. We identified design factors that influence the dimensional accuracy and symmetry of elastomer coupons extracted using this cutting device, and demonstrated its use on bovine meniscus. Advantages of this 3D printed device include a fast fabrication time, low material cost, good accuracy (within 5% of targeted dimensions), replaceable blades, and an ability to scale coupon dimensions for specific tissues and experiments. By reducing the cost and time to cut accurate dumbbell-shaped coupons, this technology can facilitate the broad adoption of standard test methods that improve the quality and reproducibility of tensile tests in soft biological tissue. Researchers can freely download a set of STL files from this study to build their own Print-A-Punch device (https://boisestate.edu/coen-ntm/technology/print-a-punch).
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影响因子：
3.5
作者：
Stender CJ;Rust E;Martin PT;Neumann EE;Brown RJ;Lujan TJ
通讯作者：
Lujan TJ
DOI：
10.1016/j.jmbbm.2011.08.016
发表时间：
2012-01-01
影响因子：
3.9
作者：
Annaidh, Aisling Ni;Bruyere, Karine;Ottenio, Melanie
通讯作者：
Ottenio, Melanie
利用3D打印技术来促进和标准化软组织测试。
影响因子：
4.6
作者：
Scholze M;Singh A;Lozano PF;Ondruschka B;Ramezani M;Werner M;Hammer N
通讯作者：
Hammer N
影响因子：
2.4
作者：
Abdelgaied, A.;Stanley, M.;Fisher, J.
通讯作者：
Fisher, J.
影响因子：
2.4
作者：
Kemper, Andrew R.;Santago, Anthony C.;Duma, Stefan M.
通讯作者：
Duma, Stefan M.