State of the art of bioimplants manufacturing: part II

Kang, Chris

doi:10.1007/s40436-018-0218-9

Cited by 49 publications

(18 citation statements)

References 136 publications

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“…Ultra-precision- and nano-manufacturing is an area of research that could be applied to CLs to enhance the physical and optical properties of the material [221,222,223]. These techniques have been successfully implemented in a number of areas, including biomedical device manufacturing, optics, and more [224]. Ultra-precision lathes are now used in the production of specialty CLs to obtain nanometer control of the surface, which can control the wettability characteristics of polymers [225] and glass surfaces [226].…”

Section: Manufacturing Perspectivesmentioning

confidence: 99%

Contact Lens Materials: A Materials Science Perspective

2019

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More is demanded from ophthalmic treatments using contact lenses, which are currently used by over 125 million people around the world. Improving the material of contact lenses (CLs) is a now rapidly evolving discipline. These materials are developing alongside the advances made in related biomaterials for applications such as drug delivery. Contact lens materials are typically based on polymer- or silicone-hydrogel, with additional manufacturing technologies employed to produce the final lens. These processes are simply not enough to meet the increasing demands from CLs and the ever-increasing number of contact lens (CL) users. This review provides an advanced perspective on contact lens materials, with an emphasis on materials science employed in developing new CLs. The future trends for CL materials are to graft, incapsulate, or modify the classic CL material structure to provide new or improved functionality. In this paper, we discuss some of the fundamental material properties, present an outlook from related emerging biomaterials, and provide viewpoints of precision manufacturing in CL development.

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Section: Manufacturing Perspectivesmentioning

confidence: 99%

Contact Lens Materials: A Materials Science Perspective

2019

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“…Additive manufacturing (AM), also termed rapid prototyping (RP) technology, is a common name for the fabrication technique depending on the idea of surface development. From its emergence in the 1980s, this technique has been garnering research interest in the sector of manufacturing [ 12 , 13 , 14 , 15 ]. In contrast to conventional implants, 3D printed implants can be tailored to several forms of diseases [ 16 , 17 , 18 ].…”

Section: 3d Printing For Hip Replacementmentioning

confidence: 99%

3D Printing for Hip Implant Applications: A Review

et al. 2020

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There is a rising demand for replacement, regeneration of tissues and organ repairs for patients who suffer from diseased/damaged bones or tissues such as hip pains. The hip replacement treatment relies on the implant, which may not always meet the requirements due to mechanical and biocompatibility issues which in turn may aggravate the pain. To surpass these limitations, researchers are investigating the use of scaffolds as another approach for implants. Three-dimensional (3D) printing offers significant potential as an efficient fabrication technique on personalized organs as it is capable of biomimicking the intricate designs found in nature. In this review, the determining factors for hip replacement and the different fabrication techniques such as direct 3D printing, Fused Deposition Modelling (FDM), Selective Laser Sintering (SLS) and stereolithography (SLA) for hip replacement. The study also covers surface modifications of 3D printed implants and provides an overview on 3D tissue regeneration. To appreciate the current conventional hip replacement practices, the conventional metallic and ceramic materials are covered, highlighting their rationale as the material of choice. Next, the challenges, ethics and trends in the implants’ 3D printing are covered and conclusions drawn. The outlook and challenges are also presented here. The knowledge from this review indicates that 3D printing has enormous potential for providing a pathway for a sustainable hip replacement.

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“…Artificial joints are widely used in medical treatment, which can effectively help patients with joint injury to eliminate pain and rebuild joint functions [1,2]. With the aggravation of aging problems and the increase of joint injuries caused by accidents such as traffic accidents, the demand for artificial joints is increasing day by day [3].…”

Section: Introductionmentioning

confidence: 99%

Path Planning for Laser Cladding Robot on Artificial Joint Surface Based on Topology Reconstruction

Chen

Liu

2020

Algorithms

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Artificial joint surface coating is a hot issue in the interdisciplinary fields of manufacturing, materials and biomedicine. Due to the complex surface characteristics of artificial joints, there are some problems with efficiency and precision in automatic cladding path planning for coating fabrication. In this study, a path planning method for a laser cladding robot for artificial joints surface was proposed. The key of this method was the topological reconstruction of the artificial joint surface. On the basis of the topological relation, a set of parallel planes were used to intersect the CAD model to generate a set of continuous, directed and equidistant surface transversals on the artificial joint surface. The arch height error method was used to extract robot interpolation points from surface transversal lines according to machining accuracy requirements. The coordinates and normal vectors of interpolation points were used to calculate the position and pose of the robot tool center point (TCP). To ensure that the laser beam was always perpendicular to the artificial joint surface, a novel laser cladding set-up with a robot was designed, of which the joint part clamped by a six-axis robot moved while the laser head was fixed on the workbench. The proposed methodology was validated with the planned path on the surface of an artificial acetabular cup using simulation and experimentation via an industrial NACHI robot. The results indicated that the path planning method based on topological reconstruction was feasible and more efficient than the traditional robot teaching method.

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State of the art of bioimplants manufacturing: part II

Cited by 49 publications

References 136 publications

Contact Lens Materials: A Materials Science Perspective

Contact Lens Materials: A Materials Science Perspective

3D Printing for Hip Implant Applications: A Review

Path Planning for Laser Cladding Robot on Artificial Joint Surface Based on Topology Reconstruction

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