• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >FE Analysis of Nitinol Leaf Springs Used in a Compression Anastomosis Device
【24h】

FE Analysis of Nitinol Leaf Springs Used in a Compression Anastomosis Device

机译：压缩吻合装置中镍钛诺钢板弹簧的有限元分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Reconstruction of the digestive system lumen patency (anastomosis creation) after its partial surgical removal is a common and crucial procedure. The conventional anastomosis methods use devices for mechanical suturing which are associated with high failure risk and can lead to major complications. The compression anastomosis as a sutureless method seems to be a promising alternative. However, attempts during the last two centuries have not been completely successful due to the complex character of the tissue-healing process. The specific mechanical behavior of Nitinol alloys was applied to the force element of the compression devices. These devices are becoming more widely adopted in surgery practice. The compression anastomosis device enables the anastomosis of colonic and intestinal tissue based on compression forces exerted by Nitinol leaf springs. By means of changing the strain distribution in the stressed leaves with varying moments of inertia, one can gain full control of the different stages in the force-deflection profile (i.e., linear elastic stage and the force plateau stage). The target of this study is the comparison of different Nitinol leaf geometries and evaluation of the finite elements analysis as a tool for preliminary design of such geometries. The results of this analysis allow us to establish regulation of the spring's mechanical behavior, thus controlling the anastomosis creation in the compression anastomosis device.
机译：在部分切除手术后，重建消化系统的内腔通畅性（产生厌氧症）是一个常见且至关重要的过程。常规的吻合方法使用用于机械缝合的装置，其具有高的失败风险并且会导致严重的并发症。加压吻合术作为无缝合方法似乎是一种有前途的替代方法。然而，由于组织愈合过程的复杂性，最近两个世纪的尝试并未完全成功。将镍钛诺合金的特定机械性能应用于压缩设备的受力元件。这些设备在外科手术实践中被越来越广泛地采用。压缩吻合装置能够基于镍钛诺片弹簧施加的压缩力实现结肠和肠组织的吻合。通过以不同的惯性矩改变应力叶中的应变分布，人们可以完全控制力-偏转曲线的不同阶段（即线性弹性阶段和受力平稳阶段）。这项研究的目标是比较不同镍钛诺叶片的几何形状，并进行有限元分析评估，以此作为初步设计此类几何形状的工具。分析的结果使我们能够确定弹簧的机械性能，从而控制压缩吻合装置中吻合的产生。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号