A novel, inexpensive and easy to use tendon clamp for in vitro biomechanical testing
A novel, inexpensive and easy to use tendon clamp for in vitro biomechanical testing
复制标题
一种新颖、廉价且易于使用的腱夹，用于体外生物力学测试
DOI：
10.1016/j.medengphy.2011.11.019
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发表时间：
2012-05-01
影响因子：
2.2
通讯作者：
Liu, Anmin
中科院分区：
文献类型：
--
作者：
Shi, DuFang;Wang, DongMei;Liu, Anmin
冷冻钳可以紧紧地固定肌腱和韧带，并传递高载荷，从4 kN到13 kN，而不会滑动，但它们复杂且昂贵。现有的非冷冻锯齿形钳口夹制作简单，使用方便，但其所能承受的最大拉力仅为2.5kN左右，这在许多生物力学测试中是不够的。本文设计了一种新型的非冻结夹钳，它具有侧挡板和非对称齿颚。采用钛合金制成的侧挡板防止压迫过程中软组织被挤出，采用尼龙制成的非对称牙颌夹持并保持软组织。在拉伸压缩试验机上对5条牛肌腱进行拉伸试验，结果表明，所有牛肌腱在断裂前均未发生滑移，最大拉伸力为6.87kN。这种非冷冻非对称齿颌夹设计用于在足踝动态模拟试验中夹持肌腱，但它也可以应用于其他体外试验，如髋关节和膝关节动态试验。(C)2011年IPEM。由爱思唯尔有限公司出版。保留所有权利。
Frozen clamps can hold tendons and ligaments tightly and transmit high loads, from 4 kN to 13 kN, without slippage, yet they are complex and expensive. The existing non-frozen serrated jaw clamp is simple to fabricate and use, but the maximal tensile force it can sustain is only about 2.5 kN, which is not enough in many biomechanical tests. In this study, a new type of non-frozen clamp, which has lateral block boards and asymmetrical teeth jaws, was designed. The lateral block boards made of titanium alloy were used to prevent the soft tissues from being squeezed out during compressing, while the asymmetrical teeth jaws made of nylon were used to grip and keep holding soft tissues. The capability of this new type of clamp was tested by stretching five cattle tendons to failure on the tensile and compression testing machine, none of them displayed any slippage before rupture, the maximum tension force was 6.87 kN. This non-frozen asymmetrical teeth jaw clamp was designed for gripping tendons in foot and ankle dynamic simulation test, but it can also be applied to other in vitro tests, such as hip and knee dynamic tests. (C) 2011 IPEM. Published by Elsevier Ltd. All rights reserved.