Review of the swallowing system and process for a biologically mimicking swallowing robot

Chen, F.J.; Dirven, Steven; Wang, Xu; Bronlund, John E.; Li, X.N.; Pullan, Andrew J.

doi:10.1016/j.mechatronics.2012.02.005

Cited by 27 publications

(16 citation statements)

References 87 publications

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“…As the viscosity of a shear thinning fluid decreases with increasing shear rate, it travels with a faster velocity. Thickened fluids always demonstrate shear thinning behaviour [5,6,24]. The Power-law rheological model describes this behaviour as:…”

Section: Discussionmentioning

confidence: 99%

Simultaneous X-ray Video-Fluoroscopy and Pulsed Ultrasound Velocimetry Analyses of the Pharyngeal Phase of Swallowing of Boluses with Different Rheological Properties

Qazi

Ekberg

Wiklund³

et al. 2020

Dysphagia

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The Ultrasound Velocity Profiling (UVP) technique allows real-time, non-invasive flow mapping of a fluid along a 1D-measuring line. This study explores the possibility of using the UVP technique and X-ray video-fluoroscopy (XVF) to elucidate the deglutition process with the focus on bolus rheology. By positioning the UVP probe so that the pulsed ultrasonic beam passes behind the air-filled trachea, the bolus flow in the pharynx can be measured. Healthy subjects in a clinical study swallowed fluids with different rheological properties: Newtonian (constant shear viscosity and non-elastic); Boger (constant shear viscosity and elastic); and shear thinning (shear rate-dependent shear viscosity and elastic). The results from both the UVP and XVF reveal higher velocities for the shear thinning fluid, followed by the Boger and the Newtonian fluids, demonstrating that the UVP method has equivalent sensitivities for detecting the velocities of fluids with different rheological properties. The velocity of the contraction wave that clears the pharynx was measured in the UVP and found to be independent of bolus rheology. The results show that UVP not only assesses accurately the fluid velocity in a bolus flow, but it can also monitor the structural changes that take place in response to a bolus flow, with the added advantage of being a completely non-invasive technique that does not require the introduction of contrast media.

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Section: Discussionmentioning

confidence: 99%

Simultaneous X-ray Video-Fluoroscopy and Pulsed Ultrasound Velocimetry Analyses of the Pharyngeal Phase of Swallowing of Boluses with Different Rheological Properties

Qazi

Ekberg

Wiklund³

et al. 2020

Dysphagia

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“…Some biomimetic pumps closely mimic the natural role models in terms of length, diameter, and transport parameters. These artificial esophagi are produced for bolus rheometry, food development for patients with oesophageal disorders, or sensor development . Other examples for biomimetic peristaltic pumping systems are highlighted in this part of the chapter and in Table .…”

Section: Classification and Comparison Of Peristaltic Pumpsmentioning

confidence: 99%

“…The working principle by which fluid motion is generated in biomimetic peristaltic pumps (Figure d) is similar to that of common pumps in engineering. However, not only the used materials differ but also the actuators are differing from technical pumps (e.g., electroactive polymers, shape memory alloys, and/or polymers), pneumatic chambers (e.g., flexible silicone actuators, flexible foam actuators or flexible rubber actuators) (see Figure d), flexible elastomers or magnetic elastomers, polymers or fluids are used to generate the peristaltic motion in a tube. Most biomimetic developments try to integrate the actuators directly into the tube or to make the tube self‐actuating as in most biological models (e.g., the esophagus) .…”

Section: Introductionmentioning

confidence: 99%

Silent Pumpers: A Comparative Topical Overview of the Peristaltic Pumping Principle in Living Nature, Engineering, and Biomimetics

Esser

Masselter

Speck

2019

Advanced Intelligent Systems

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This synopsis presents the state‐of‐the‐art of peristaltic pump systems in biomimetics and living nature, and allows for a comparison by highlighting the differences in structure and function, as well as advantages and drawbacks for technical implementation. For the first time, data of selected biological examples are collected in one study to give a comprehensive overview of the performance of biological peristaltic pumps. The developed biomimetic pumping systems not only mimic the biological principle and by this inherit its advantages, but also show the usability of the principle in various pumping applications and medical research. A direct comparison of peristaltic pump systems in nature, biomimetics, and technology highlights their similarities, differences, and allows for proposing new fields of application.

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“…The specification of the process features and biological structure have been communicated in our earlier review of the swallowing system (Chen et al, 2012). The engineering requirements can be visualised as an axial occlusion that propagates in a moving actuation window (Figure 3).…”

Section: Engineering Specificationmentioning

confidence: 99%

Biologically-inspired swallowing robot for investigation of texture modified foods

Dirven

Cheng

et al. 2013

IJBBR

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Textural and rheological characteristics of foods are known to profoundly affect the swallowing process. Food technologists continue to exploit this notion in the management of symptomatic swallowing disorders (dysphagia) where novel foods are designed to elicit more reliable transport characteristics. Currently, little is understood about the relationship between food bolus formulation and its flow-induced interactions with the swallowing tract. Experimentation of a medical nature in this field is extremely challenging, and may put patients at risk. In the rheological domain the deformation fields are dissimilar to that of the biological system. In response to these limitations, quantitative assessment of bolus transport by a novel rheometric testing device is proposed. This paper describes the inspiration for a biologically-inspired robotic swallowing device to be applied to address these issues. This will allow for an improved understanding of swallowing mechanics and food design in the engineering, medical, and food technology fields.Keywords: swallow; swallowing robot; peristalsis; biological inspiration; texture modified food; TMF; bolus; food technology. 164 S. Dirven et al.Reference to this paper should be made as follows: Dirven, S., Xu, W., Cheng, L.K., Allen, J. and Bronlund, J. (2013) Biographical notes: Steven Dirven is a PhD candidate in the field of mechatronics engineering at the University of Auckland, New Zealand. He graduated from Massey University, New Zealand, with a BE (Mechatronics) with first class honours in 2010. He is a student member of the Institute of Electrical and Electronics Engineers (IEEE). His current research surrounds soft-robotic actuation and sensation for peristaltic pumping arising from inspiration of esophageal swallowing in man.Weiliang Xu received his BE in Manufacturing Engineering and ME in Mechanical Engineering from Southeast University, China, 1982 and 1985, respectively, and This paper is a revised and expanded version of a paper entitled 'Strategic alignment of swallowing robotic research with the demands of the medical and food technology fields' presented at

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Review of the swallowing system and process for a biologically mimicking swallowing robot

Cited by 27 publications

References 87 publications

Simultaneous X-ray Video-Fluoroscopy and Pulsed Ultrasound Velocimetry Analyses of the Pharyngeal Phase of Swallowing of Boluses with Different Rheological Properties

Simultaneous X-ray Video-Fluoroscopy and Pulsed Ultrasound Velocimetry Analyses of the Pharyngeal Phase of Swallowing of Boluses with Different Rheological Properties

Silent Pumpers: A Comparative Topical Overview of the Peristaltic Pumping Principle in Living Nature, Engineering, and Biomimetics

Biologically-inspired swallowing robot for investigation of texture modified foods

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