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An artificial anal sphincter based on a novel clamping mechanism: Design, analysis, and testing
Author(s) -
Han Ding,
Yan Guozheng,
Wang Zhiwu,
Jiang Pingping,
Liu Dasheng,
Zhao Kai,
Ma Jin
Publication year - 2021
Publication title -
artificial organs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 76
eISSN - 1525-1594
pISSN - 0160-564X
DOI - 10.1111/aor.13924
Subject(s) - clamping , mechanism (biology) , reliability (semiconductor) , anal sphincter , kinematics , anus , controller (irrigation) , computer science , engineering , simulation , mechanical engineering , surgery , medicine , physics , agronomy , power (physics) , classical mechanics , quantum mechanics , biology
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.