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Experimental study on the effects of shear stress on viscoelastic properties of the intestines
Li J(李杰)1,2,3; Bi, XiaoNan1; Zhang K(张珂)1,3; Zhang C(张诚)2,3; Liu H(刘浩)2,3
Department机器人学研究室
Source PublicationScience China Technological Sciences
ISSN1674-7321
2019
Volume62Issue:6Pages:1028-1034
Indexed BySCI ; EI ; CSCD
EI Accession number20191606797441
WOS IDWOS:000470250200016
CSCD IDCSCD:6516861
Contribution Rank1
Funding OrganizationNational Key R&D Program of China (Grant No. 2018YFC0115101) ; National Natural Science Foundation of China (Grant No. 61503370) ; Open Fund of State Key Laboratory of Robotics of China (Grant No. 2017-O10)
Keywordshear stress nonlinear viscoelastic property intestine loss factor negative gas adsorption
AbstractShear deformation induced by shear stress is one of the major forms of interaction between the locomotion mechanism and the intestines. Relatively few experimental studies using locomotion mechanisms have been performed to investigate the viscoelastic property of intestines. There is a lack of reliable data regarding the relative movement between various locomotion mechanisms and the small intestine, and how that movement affects the measurement of shear displacement. In this work, a novel platform was constructed with two elaborately designed clamps that could securely fix both sides of an intestine sample using negative gas adsorption. The platform was also integrated with noncontact measuring equipment to record the thickness of the intestine sample. Subsequently, preservation measure was applied to porcine intestine, and multiple intestine samples were prepared and tested under strains of 20%, 50%, 80% and 100%. A five-element viscoelastic model that was fitted to multiple sets of data could accurately predict the biomechanical property of the intestines. Finally, a new criterion, the loss factor, was calculated with the parameters of the five-element model to represent the dynamic behavior of soft tissue, and it was used to verify the reliability and effectiveness of the experimental setup and results.
Language英语
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Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/24586
Collection机器人学研究室
Corresponding AuthorLi J(李杰)
Affiliation1.School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China
2.State Key Laboratory of Robotics, Shenyang Institute of Automation (SIA), Chinese Academy of Sciences, Shenyang 110016, China
3.Liaoning Provincial Key Laboratory of Minimally Invasive Surgical Robot, Shenyang 110016, China
Recommended Citation
GB/T 7714
Li J,Bi, XiaoNan,Zhang K,et al. Experimental study on the effects of shear stress on viscoelastic properties of the intestines[J]. Science China Technological Sciences,2019,62(6):1028-1034.
APA Li J,Bi, XiaoNan,Zhang K,Zhang C,&Liu H.(2019).Experimental study on the effects of shear stress on viscoelastic properties of the intestines.Science China Technological Sciences,62(6),1028-1034.
MLA Li J,et al."Experimental study on the effects of shear stress on viscoelastic properties of the intestines".Science China Technological Sciences 62.6(2019):1028-1034.
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