A multi-segmented shape memory alloy-based actuator system for endoscopic applications

Kadir, Muhammad Raihan Abdul; Dewi, Dyah Ekashanti Octorina; Jamaludin, Mohd Najeb; Nafea, Marwan; Ali, Mohamed Sultan Mohamed

doi:10.1016/j.sna.2019.06.056

Cited by 33 publications

(11 citation statements)

References 28 publications

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“…The model only accounts for optimizations regarding the radius of curvature. [42,45], 2012 An octopus-inspired SMA-driven soft robot is presented. SMA springs are used as actuators to allow for spatial motion, stiffening, and elongating of the octopus arm.…”

Section: Theoretical Modeling Of Sma-driven Continuum Robotsmentioning

confidence: 99%

Systematic Methodology for an Optimized Design of Shape Memory Alloy‐Driven Continuum Robots

Goergen,

Rizzello,

Motzki

2023

Adv Eng Mater

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Continuum robots stand out due to their high dexterity, which allows them to effectively navigate in confined spaces and dynamic environments. At present, motor‐controlled tendons represent the most prominent actuation method used in continuum robots which require large drive units, increasing the overall system size and weight. A potential alternative technology to overcome those limitations is represented by shape memory alloy (SMA) wire actuators, which are characterized by extremely high energy density and flexibility, leading to a reduction of the size, weight, and design complexity of continuum robots. The complex thermomechanical behavior of SMA wires, however, makes the design of SMA‐based applications a challenging task, and systematic approaches to design SMA‐driven continuum robots are poorly understood. To overcome this issue, this article presents a novel systematic methodology for designing SMA‐driven continuum robots capable of motion in a three‐dimensional environment. First, the kinematic relationship between SMA wires and continuum robot deformation as well as the required actuator force in quasi‐static conditions, is mathematically described based on the assumption of a constant curvature deformation. Subsequently, the model is validated by in‐plane experiments for different design parameters. Based on the results, a fully integrated, antagonistic SMA continuum robot is built and validated.

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Section: Theoretical Modeling Of Sma-driven Continuum Robotsmentioning

confidence: 99%

Systematic Methodology for an Optimized Design of Shape Memory Alloy‐Driven Continuum Robots

Goergen,

Rizzello,

Motzki

2023

Adv Eng Mater

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“…Minimal invasive surgery (MIS) has become a trending field, and several innovations (Abdul Kadir et al , 2019) in terms of design and flexibility have taken place. To address this issue, Kashyap et al (2018) fabricated a 3D printed porous and radiopaque SMH that can be applied in endovascular embolization.…”

Section: Smart Materials and Applicationsmentioning

confidence: 99%

Functional applications of 4D printing: a review

Mohol

Sharma

2021

RPJ

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Purpose Additive manufacturing has rapidly developed in terms of technology and its application in various types of industries. With this rapid development, there has been significant research in the area of materials. This has led to the invention of Smart Materials (SMs). The 4D printing is basically 3D printing of these SMs. This paper aims to focus on novel materials and their useful application in various industries using the technology of 4D printing. Design/methodology/approach Research studies in 4D printing have increased since the time when this idea was first introduced in the year 2013. The present research study will deeply focus on the introduction to 4D printing, types of SMs and its application based on the various types of stimulus. The application of each type of SM has been explained along with its functioning with respect to the stimulus. Findings SMs have multiple functional applications pertaining to appropriate industries. The 4D printed parts have a distinctive capability to change its shape and self-assembly to carry out a specific function according to the requirement. Afterward, the fabricated part can recover to its 3D printed “memorized” shape once it is triggered by the stimulus. Originality/value The present study highlights the various capabilities of SMs, which is used as a raw material in 4D printing. Graphical abstract

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“…These SMMs can be found in some everyday common devices and locations. In medicine, shape memory polymer (SMP) films are used as membranes for dosage forms [ 1 , 2 ], drug delivery systems [ 3 , 4 , 5 ], smart sutures and stents [ 6 ], in multiple cardiovascular applications [ 7 , 8 ], for antibacterial functions [ 9 ], and minimally invasive surgeries [ 10 ]. In aerospace [ 11 , 12 , 13 ], SMMs are used as active load-bearing elements in deployable panels [ 14 ], release devices during rocket launches [ 15 ], noise-reducing jet nozzles [ 16 ], aerodynamic load suppression systems [ 16 , 17 ], bilinear controllers [ 18 ], phase-changing light-responsive components [ 19 ], and various actuators [ 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Recording, Storage, and Reproduction of Information on Polyvinyl Chloride Films Using Shape Memory Effects

et al. 2021

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Partial dissolution and plasticization are used for recording, storing, and reproducing information with modified industrial screen-printing equipment and aqueous solutions of colorless organic liquids on small surface area shape memory polymer films. To justify the choice of “ink” and evaluate the effectiveness of using organic liquids as high-speed polymer solvents, the new method for recording hidden information uses the calculation of the solubility parameter, differential scanning calorimetry, and the method of one-sided swelling of films under isometric conditions. Using the example of tactile marking of shrink labels made of polyvinyl chloride, the optimal conditions for recording hidden information on a film are established in terms of the concentration of an aqueous solution of tetrahydrofuran, the contact time, and the processing temperature of the polymer using screen printing equipment.

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A multi-segmented shape memory alloy-based actuator system for endoscopic applications

Cited by 33 publications

References 28 publications

Systematic Methodology for an Optimized Design of Shape Memory Alloy‐Driven Continuum Robots

Systematic Methodology for an Optimized Design of Shape Memory Alloy‐Driven Continuum Robots

Functional applications of 4D printing: a review

Recording, Storage, and Reproduction of Information on Polyvinyl Chloride Films Using Shape Memory Effects

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