Design of an Actuator for Artificial Anal Sphincter Based on Finite Element Analysis

Zan, Peng; Ding, Qiao; Yang, Banghua; Li, Tianxiu; Zhang, Yafeng; Ke, Yan

doi:10.1109/icaci49185.2020.9177706

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…With the development of medical imaging techniques, novel analytic methods, and advanced medical devices such as the 3D-Transit system, FLIP and Fecobionics, modeling simulation methods can be integrated into different protocols for clinical work, and ultimately aid in clinical decision-making in gastroenterology. Moreover, the incorporation of GI organ modeling and novel medical device applications, for example esophageal stent implantation (Peirlinck et al 2018, Ni et al 2018 or the artificial anal sphincter design (Zan et al 2018(Zan et al , 2020, into a full-field mechanical numerical framework may enhance the development and optimization of medical devices and their applicability in surgical plans for the GI organs.…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Modeling and measurements of the mechanophysiological function of the gastrointestinal organs

Liao

Mark²,

Zhao

et al. 2020

Physiol. Meas.

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Objective. Gastroenterological research has traditionally been based on experimental approaches rather than mathematical modeling. However, the various patterns of the gastrointestinal (GI) tract functions are generated by the integrated functions of multiple tissues and cell types. Hence, a thorough study of the gut requires an understanding of the interactions between cells, tissues and GI organs in both healthy and diseased conditions. Approach. A unique way of coping with the resulting explosion in complexity is mathematical modeling. Novel modeling analysis together with the development of medical imaging techniques and advanced medical devices can be integrated into different protocols, to aid understanding of the physiology of GI diseases and clinical decision-making in GI cases. Main results. This review summarizes the current advanced mechano-physiological modeling analyses of the human GI organs, including imaging modeling analysis of mass transit processing and mechano-physiological modeling during organ distension. Significance. The proposed models have the potential to shed some light on the functional understanding of the physiology and pathophysiology of both healthy and diseased guts.

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Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Modeling and measurements of the mechanophysiological function of the gastrointestinal organs

Liao

Mark²,

Zhao

et al. 2020

Physiol. Meas.

View full text Add to dashboard Cite

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Experimental evaluation of an artificial anal sphincter based on biomechanical compatibility

Wang,

Zhou,

Liu

et al. 2024

Artificial Organs

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BackgroundThe artificial anal sphincter is a device used to treat patients with fecal incontinence who are unable to control their bowel movements on their own. Long‐term morphological changes in the tissue surrounding the artificial anal sphincter can cause biomechanical compatibility problems, which seriously affect the clinical application of the artificial anal sphincter.MethodsIn this paper, the superelasticity of shape memory alloys was utilized to design and fabricate a biomechanically compatible constant force clamping artificial anal sphincter. An in vitro simulation system was constructed to verify the effectiveness, safety, and constant force characteristics of the artificial anal sphincter.ResultsThe experimental results demonstrated that the artificial anal sphincter could be effectively closed with no leakage of the liquid‐like intestinal contents, which are most likely to leak. The pressure of the artificial anal sphincter on the intestinal tube gradually increased and eventually became constant during closure, and the pressure value was always less than the intestinal blood supply pressure threshold.ConclusionsIn this paper, we designed an artificial anal sphincter based on biomechanical compatibility and the corresponding in vitro simulation experimental program and preliminarily verified the effectiveness, safety, and constant force characteristics of the artificial anal sphincter.

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Design of an Actuator for Artificial Anal Sphincter Based on Finite Element Analysis

Cited by 2 publications

References 7 publications

Modeling and measurements of the mechanophysiological function of the gastrointestinal organs

Modeling and measurements of the mechanophysiological function of the gastrointestinal organs

Experimental evaluation of an artificial anal sphincter based on biomechanical compatibility

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