An artificial anal sphincter based on a novel clamping mechanism: Design, analysis, and testing

被引：8

作者：

Han, Ding ^{[1
,2
]}

Yan, Guozheng ^{[1
,2
]}

Wang, Zhiwu ^{[1
,2
]}

Jiang, Pingping ^{[1
,2
]}

Liu, Dasheng ^{[1
,2
]}

Zhao, Kai ^{[1
,2
]}

Ma, Jin ^{[1
,2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Inst Med Robot, Shanghai, Peoples R China

来源：

ARTIFICIAL ORGANS | 2021年 / 45卷 / 08期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

artificial anal sphincter; clamping mechanism; dynamics analysis; in vitro experiments; kinematics analysis;

D O I：

10.1111/aor.13924

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

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.

引用

页码：E293 / E303

页数：11

共 28 条

[1] Development of an implantable artificial anal sphincter by the use of the shape memory alloy [J].