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Polymer 3D Bioprinting for Bionics and Tissue Engineering Applications
Published in Atul Babbar, Ranvijay Kumar, Vikas Dhawan, Nishant Ranjan, Ankit Sharma, Additive Manufacturing of Polymers for Tissue Engineering, 2023
Vidyapati Kumar, Atul Babbar, Ankit Sharma, Ranvijay Kumar, Ankit Tyagi
Three-dimensional bioprinting of polymer may provide a broad range of prosthetics that are tailored to the individual’s demands (Arefin et al., 2021). He et al. (2014) presented soft tissue prostheses such as an artificial nose, ear, and eye for maxillofacial rehabilitation utilizing a 3D bioprinting approach such as scanning, printing, polishing, and casting. Fabricating silicon prostheses is a straightforward and inexpensive method. Arjun et al. (2016) described 3D-printed hand prosthesis based on electro-thermal actuators on nylon 6,6 muscles. A 3D-printed, manufactured prosthetic hand can move all fingers separately and grip various items. Zuniga developed antimicrobial 3D-printed finger prosthetics made of polylactic acid. Three-dimensional printing antimicrobial filament has the potential to change medical device creation. Stenvall et al. (2020) described a custom-made prosthetic device constructed from a polypropylene composite reinforced with micro-fibrillated cellulose. The prosthesis and orthosis solutions were created using the fused deposition modeling technology. They reported the clinical experiment regarding wearing experience, appearance, and material and method acceptability.
Additive Manufacturing of Polymers for Biomedical Applications
Published in Atul Babbar, Ankit Sharma, Vivek Jain, Dheeraj Gupta, Additive Manufacturing Processes in Biomedical Engineering, 2023
The 3D printing of polymers can offer a wide variety of prosthetics customized for a person’s needs [22, 57]. He et al. reported soft tissue prostheses, for example, artificial noses, ears and eyes for maxillofacial rehabilitation, using an AM method, namely, scanning, printing, polishing and casting. The process of fabricating a silicon prosthesis is simple and cheap [58]. Arjun et al. reported 3D-printable hand prostheses based on an electro-thermal actuator on nylon 6,6–based muscles. A 3D-printed fabricated prosthetic hand has the ability to move all fingers, individually, and grasp a variety of objects [59]. Zuniga reported polylactic acid–based 3D-printed finger prostheses with antibacterial properties. Three-dimensional printing antibacterial filament has the potential to revolutionize fabricating medical devices [60]. Stenvall et al. reported a custom-made prosthetic product using microfibrilated cellulose (MFC)–reinforced polypropylene composite. The FDM technique of AM has been employed to fabricate the prostheses and orthosis solution. They have reported the clinical trial in terms of wearing experience, appearance and acceptance of material and technique [21].
Electromyographic evaluation of different handle shapes of masons’ trowels
Published in International Journal of Occupational Safety and Ergonomics, 2021
Nabiollah Bakhtiari, Iman Dianat, Moein Nedaei
The human hand is an end effector of the multilink kinematic chain of the body, and thus a change in position of any of the proximal segments may have an influence on the force produced by the hand and fingers [1]. In many daily and occupational activities, frequent use of the hands may lead to numerous musculoskeletal disorders (MSDs) and injuries (e.g., de Quervain’s tenosynovitis, trigger finger, ganglionic cysts, hand-arm vibration syndrome, BlackBerry thumb) [2–4]. Hand disorders account for approximately 33% of all work injuries, 25% of lost work time and 20% of permanent disabilities [3,5].