3D printing technology applied to orthosis manufacturing: narrative review

Choo, Yoo Jin; Boudier‐Revéret, Mathieu; Lee, Hee Jin

doi:10.21037/apm-20-1185

Cited by 72 publications

(46 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In navigation [43], contour maps are used to represent risk regions and safe navigation routes. In additive manufacturing [44][45][46][47], contour maps are used to describe the details of the model to be 3D printed.…”

Section: Introductionmentioning

confidence: 99%

Bearing Severity Fault Evaluation Using Contour Maps—Case Study

et al. 2021

View full text Add to dashboard Cite

Increasing industrial competitiveness has led to an increased global interest in condition monitoring. In this sector, rotating machinery plays an important role, where the bearing is one of the most critical components. Many vibration-based signal treatments are already being used to identify features associated with bearing faults. The information embedded in such features are employed in the construction of health indicators, which allow for evaluation of the current operating status of the machine. In this work, the use of contour maps to represent the diagnosis map of a bearing, used as a health map, is presented for the first time. The results show that the proposed method is promising, allowing for the satisfactory detection and evaluation of the severity of bearing damage. In this initial stage of the research, our results suggest that this method can improve the classification of bearing faults and, therefore, optimise maintenance processes.

show abstract

Section: Introductionmentioning

confidence: 99%

Bearing Severity Fault Evaluation Using Contour Maps—Case Study

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Future studies may utilize the Taguchi method to evaluate more design parameters with fewer factor combinations and thus cost, which have also been widely adopted in orthotic designs [65,66]. In addition, subject ratings, electromyography, musculoskeletal model, and finite element model can also be utilized to frame a comprehensive biomechanical profile (including muscle force and internal stress/strain) for the evaluation of 3D printed insole designs for flatfooted individuals [17,67,68].…”

Section: Discussionmentioning

confidence: 99%

“…The technological advancements in morphology acquisition and 3D printing enable the digitalization for customized orthotics with improved accuracy and thus better rehabilitation [ 16 ]. Therefore, the technique could probably replace the traditional manufacturing of orthoses in the future [ 17 ]. The 3D printing technology had been taken advantage of by the total contact insoles for diabetes, matching the foot morphology to the insole for pressure relief [ 28 ].…”

Section: Discussionmentioning

confidence: 99%

“…The advancement of additive manufacturing (or 3D printing) facilitates nascent applications and revolutionizes the orthotics industry and healthcare. The technology can digitize the traditional hand-crafted manufacturing process and designs with controlled precision [ 16 , 17 ]. Along with the advancement of 3D scanning and other imaging techniques, foot morphology could be acquired for customization and better fit in orthotic designs [ 16 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Three-Dimensional Printed Foot Orthosis for Flexible Flatfoot: An Exploratory Biomechanical Study on Arch Support Reinforcement and Undercut

et al. 2021

View full text Add to dashboard Cite

The advancement of 3D printing and scanning technology enables the digitalization and customization of foot orthosis with better accuracy. However, customized insoles require rectification to direct control and/or correct foot deformity, particularly flatfoot. In this exploratory study, we aimed at two design rectification features (arch stiffness and arch height) using three sets of customized 3D-printed arch support insoles (R+U+, R+U−, and R−U+). The arch support stiffness could be with or without reinforcement (R+/−) and the arch height may or may not have an additional elevation, undercutting (U+/−), which were compared to the control (no insole). Ten collegiate participants (four males and six females) with flexible flatfoot were recruited for gait analysis on foot kinematics, vertical ground reaction force, and plantar pressure parameters. A randomized crossover trial was conducted on the four conditions and analyzed using the Friedman test with pairwise Wilcoxon signed-rank test. Compared to the control, there were significant increases in peak ankle dorsiflexion and peak pressure at the medial midfoot region, accompanied by a significant reduction in peak pressure at the hindfoot region for the insole conditions. In addition, the insoles tended to control hindfoot eversion and forefoot abduction though the effects were not significant. An insole with stronger support features (R+U+) did not necessarily produce more favorable outcomes, probably due to over-cutting or impingement. The outcome of this study provides additional data to assist the design rectification process. Future studies should consider a larger sample size with stratified flatfoot features and covariating ankle flexibility while incorporating more design features, particularly medial insole postings.

show abstract

“…Compared with traditional manufacturing technologies (such as injection molding), 3D printing technology can produce a relatively small number of products faster, more flexible at a lower cost. [33,34] One of the crit-ical advantages of 3D printing is designability, able to produce very complex patterning or stereo-geometries which are impossible to construct by traditional techniques. [35,36] As the earliest 3D printing technology, photocuring 3D printing is widely used in the design and customization of polymer materials, especially acrylic resins.…”

Section: Introductionmentioning

confidence: 99%

3D Printing Conductive Composites with Poly(ionic liquid) as a Noncovalent Intermedia to Fabricate Carbon Circuits

Han

Wang

Ding

et al. 2021

Macro Materials & Eng

View full text Add to dashboard Cite

In this study, a kind of imidazole type poly(ionic liquid) ([PEP-MIM]Cl) is synthesized, which can disperse carbon effectively. [PEP-MIM]Cl is used as an intermediate to coat carbon on the poly(acrylic acid)(PAA-co-MBA) via ion exchange to obtain conductive polymer composite (CPC). A series of characterizations are performed. Experiments show that carbon can be coated on the PAA-co-MBA uniformly, and compared with using carbon as filler, this method requires less carbon to achieve good conductive performance. The carbon layer on the polymer's surface is enriched via the swelling-shrinking properties of PAA-co-MBA according to the SEM images. Furthermore, in combination with 3D printing technology, PAA-co-MBA can be designed into different shapes to achieve various functions such as pressure-sensing element. Finally, a new type of CPC named carbon clad polymeric laminate (CCPL) is prepared by using the carbon coating method and 3D printing technology. It has the potential to replace copper clad laminate (CCL) and printed circuit board (PCB), to a certain extent. This technology expands the preparation method and application of the CPC such as flexible and wearable conductive fabrics.

show abstract

3D printing technology applied to orthosis manufacturing: narrative review

Cited by 72 publications

References 25 publications

Bearing Severity Fault Evaluation Using Contour Maps—Case Study

Bearing Severity Fault Evaluation Using Contour Maps—Case Study

A Three-Dimensional Printed Foot Orthosis for Flexible Flatfoot: An Exploratory Biomechanical Study on Arch Support Reinforcement and Undercut

3D Printing Conductive Composites with Poly(ionic liquid) as a Noncovalent Intermedia to Fabricate Carbon Circuits

Contact Info

Product

Resources

About