夹紧
机制(生物学)
肛门括约肌
可靠性(半导体)
运动学
肛门
肛门外括约肌
计算机科学
工程类
模拟
机械工程
外科
医学
肛管
物理
量子力学
经典力学
功率(物理)
直肠
作者
Han Ding,Guozheng Yan,Zhiwu Wang,Pingping Jiang,Dasheng Liu,Kai Zhao,Jin Ma
摘要
An artificial anal sphincter is a device to help patients with fecal incontinence rebuild the ability to control the excrement through the anus. In this article, an artificial anal sphincter based on a novel clamping mechanism (AASNCM) is proposed to improve the safety and reliability. The AASNCM, which is powered by a transcutaneous energy transfer system, consists of a novel clamping mechanism, a receiving coil and a control unit. According to design requirements, the novel clamping mechanism model was established. After that, its kinematics and dynamics were analyzed. The results of force tests on the prototype AASNCM show that the maximum values of clamping force and expanding force are 15.859 and 31.029 N, respectively. Comparing the experimental results with theoretical analysis, a good match can be concluded. Finally, in vitro experiments were conducted, and have verified the safety and reliability of the proposed AASNCM.
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