scholarly journals Schedule feasibility and workflow for additive manufacturing of titanium plates for cranioplasty reconstruction in canine skull tumors

2019 ◽  
Author(s):  
Jordan James ◽  
Michelle L Oblak ◽  
Alex zur Linden ◽  
Fiona MK James ◽  
Matt Parkes ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Titanium Implants ◽  
Patient Treatment ◽  
Patient Specific ◽  
Additive Manufacture ◽  
Planning Time ◽  
Metal Printing ◽  
3D Metal Printing ◽  
Skull Tumors ◽  
Surgical Oncologist

Additive manufacturing has allowed for the creation of a patient-specific custom solution that can resolve many of the limitations previously reported for canine cranioplasty. The purpose of this pilot study was to determine the schedule feasibility and workflow in manufacturing patient-specific titanium implants for canines undergoing cranioplasty immediately following craniectomy. Computed tomography scans from patients with tumors of the skull were considered and 3 cases were selected. Images were imported into OsiriX MD image processing software and tumor margins were determined based on agreement between a board-certified veterinary radiologist and veterinary surgical oncologist. Virtual surgical planning was performed and a 5mm bone margin was selected. A defect was created to simulate the intraoperative defect. Stereolithography format files of the skulls were imported into Renishaw Additive-manufacture for Design-led Efficient Patient Treatment (ADEPT) software. In collaboration with medical solution center, Additive Design in Surgical Solutions (ADEISS), a custom titanium plate was designed with the input of an applications engineer and veterinary surgical oncologist. Plates were printed in titanium and postprocessed at ADEISS. Total planning time was approximately 2 hours with a manufacturing time of 2 weeks. Based on the findings of this study, with access to an advanced 3D metal printing medical solution center that can provide advanced software and printing, patient-specific additive manufactured titanium implants can be planned, created, processed, shipped and sterilized for patient use within a 3-week turnaround.

scholarly journals Schedule feasibility and workflow for additive manufacturing of titanium plates for cranioplasty reconstruction in canine skull tumors

2019 ◽  
Author(s):  
Jordan James ◽  
Michelle L Oblak ◽  
Alex zur Linden ◽  
Fiona MK James ◽  
Matt Parkes ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Titanium Implants ◽  
Patient Treatment ◽  
Patient Specific ◽  
Additive Manufacture ◽  
Planning Time ◽  
Metal Printing ◽  
3D Metal Printing ◽  
Skull Tumors ◽  
Surgical Oncologist

Additive manufacturing has allowed for the creation of a patient-specific custom solution that can resolve many of the limitations previously reported for canine cranioplasty. The purpose of this pilot study was to determine the schedule feasibility and workflow in manufacturing patient-specific titanium implants for canines undergoing cranioplasty immediately following craniectomy. Computed tomography scans from patients with tumors of the skull were considered and 3 cases were selected. Images were imported into OsiriX MD image processing software and tumor margins were determined based on agreement between a board-certified veterinary radiologist and veterinary surgical oncologist. Virtual surgical planning was performed and a 5mm bone margin was selected. A defect was created to simulate the intraoperative defect. Stereolithography format files of the skulls were imported into Renishaw Additive-manufacture for Design-led Efficient Patient Treatment (ADEPT) software. In collaboration with medical solution center, Additive Design in Surgical Solutions (ADEISS), a custom titanium plate was designed with the input of an applications engineer and veterinary surgical oncologist. Plates were printed in titanium and postprocessed at ADEISS. Total planning time was approximately 2 hours with a manufacturing time of 2 weeks. Based on the findings of this study, with access to an advanced 3D metal printing medical solution center that can provide advanced software and printing, patient-specific additive manufactured titanium implants can be planned, created, processed, shipped and sterilized for patient use within a 3-week turnaround.

scholarly journals Evolution of design considerations in complex craniofacial reconstruction using patient-specific implants

2016 ◽  
Vol 231 (6) ◽  
pp. 509-524 ◽  
Author(s):  
Sean Peel ◽  
Satyajeet Bhatia ◽  
Dominic Eggbeer ◽  
Daniel S Morris ◽  
Caroline Hayhurst
Keyword(s):  
Additive Manufacturing ◽  
Case Studies ◽  
Computer Aided Design ◽  
Titanium Implants ◽  
Patient Specific ◽  
Patient Case ◽  
Computer Aided Manufacturing ◽  
Design Considerations ◽  
Computer Aided ◽  
Aided Design

Previously published evidence has established major clinical benefits from using computer-aided design, computer-aided manufacturing, and additive manufacturing to produce patient-specific devices. These include cutting guides, drilling guides, positioning guides, and implants. However, custom devices produced using these methods are still not in routine use, particularly by the UK National Health Service. Oft-cited reasons for this slow uptake include the following: a higher up-front cost than conventionally fabricated devices, material-choice uncertainty, and a lack of long-term follow-up due to their relatively recent introduction. This article identifies a further gap in current knowledge – that of design rules, or key specification considerations for complex computer-aided design/computer-aided manufacturing/additive manufacturing devices. This research begins to address the gap by combining a detailed review of the literature with first-hand experience of interdisciplinary collaboration on five craniofacial patient case studies. In each patient case, bony lesions in the orbito-temporal region were segmented, excised, and reconstructed in the virtual environment. Three cases translated these digital plans into theatre via polymer surgical guides. Four cases utilised additive manufacturing to fabricate titanium implants. One implant was machined from polyether ether ketone. From the literature, articles with relevant abstracts were analysed to extract design considerations. In all, 19 frequently recurring design considerations were extracted from previous publications. Nine new design considerations were extracted from the case studies – on the basis of subjective clinical evaluation. These were synthesised to produce a design considerations framework to assist clinicians with prescribing and design engineers with modelling. Promising avenues for further research are proposed.

scholarly journals Qualification of Customised Medical Implants Produced by Ti6Al4V(ELI) Additive Manufacturing

2020 ◽  
Vol 321 ◽  
pp. 03012
Author(s):  
W B du Preez ◽  
G J Booysen
Keyword(s):  
Additive Manufacturing ◽  
Quality Management ◽  
Management System ◽  
Quality Management System ◽  
Titanium Implants ◽  
International Standards ◽  
Patient Specific ◽  
Medical Implants ◽  
Design Development ◽  
Custom Made

Although many cases of medical implants produced through additive manufacturing (AM) in Ti6Al4V have been reported in literature, most of these processes had not been qualified. To enable certification and commercialisation of medical implants and devices an ISO 13485:2016 quality management system was successfully implemented in the Centre for Rapid Prototyping and Manufacturing (CRPM) at the Central University of Technology, Free State in South Africa. This certification covers qualification of both design, development and production of patient specific custom made titanium implants, as well as preoperative models, jigs and cutting guides in nylon by means of AM and supports commercialisation. With this quality management system as framework for ensuring the reliability and repeatability of the AM performed at the CRPM, the generation of data to validate the individual processes in the AM process chain was pursued. Sufficient research data has been produced and published to prove that medical implants produced through AM can fully comply with the international standards for material, physical, chemical and mechanical properties. In this paper the research performed towards the qualification of AM of Ti6Al4V medical implants is discussed. Examples are given of internationally leading work on utilising these implants in maxillofacial and orthopaedic surgeries.

scholarly journals New possibilities of additive manufacturing using Xbeam 3D metal printing technology (Review)

2017 ◽  
Vol 2017 (12) ◽  
pp. 16-22 ◽  
Author(s):  
D.V. Kovalchuk ◽  
◽  
V.I. Melnik ◽  
I.V. Melnik ◽  
B.A. Tugaj ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Printing Technology ◽  
Metal Printing ◽  
3D Metal Printing ◽  
Technology Review

Establishing a Quality Management System for Production of Certified Customised Titanium Medical Implants through Additive Manufacturing

MRS Advances ◽  
2020 ◽  
Vol 5 (26) ◽  
pp. 1387-1396
Author(s):  
W B du Preez ◽  
D J de Beer ◽  
G J Booysen
Keyword(s):  
Additive Manufacturing ◽  
Quality Management ◽  
Management System ◽  
Quality Management System ◽  
Titanium Implants ◽  
Patient Specific ◽  
Medical Implants ◽  
Validation Data ◽  
Custom Made

ABSTRACTVarious cases of medical implants produced through additive manufacturing (AM) in Ti6Al4V have been reported in literature. Not all manufacturing processes used, were qualified. In striving to deliver certified AM medical implants and devices, an ISO 13485:2016 quality management system was implemented in the Centre for Rapid Prototyping and Manufacturing (CRPM) of the Central University of Technology, Free State (CUT) in Bloemfontein, South Africa. This certification is valid for design, development and production of patient-specific custom-made titanium implants, preoperative models, jigs and cutting-guides in nylon through AM, and contract-production of these products. For maintaining this quality management system, the generation of data to validate the individual processes in the AM process-chain is crucial to prove the DMLS product-quality of CRPM’s products. During the past five years, directed research data was produced and published to prove that medical implants produced through DMLS can fully comply with the accepted international standards for material, physical, chemical and mechanical properties of such parts. The paper discusses the quality management system’s establishment; materials research projects executed to generate validation data are mentioned; and examples of customised titanium implants for restoring the quality of life of patients are shown.

scholarly journals New possibilities of additive manufacturing using Xbeam 3D metal printing technology (Review)

2017 ◽  
Vol 2017 (12) ◽  
pp. 26-33
Author(s):  
D.V. Kovalchuk ◽  
◽  
V.I. Melnik ◽  
I.V. Melnik ◽  
B.A. Tugaj ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Printing Technology ◽  
Metal Printing ◽  
3D Metal Printing ◽  
Technology Review

A Comparative Study of Surface Cleaning Treatments for 3D Printed Medical Implants

2017 ◽  
Author(s):  
Lucy Guo ◽  
Zhiqiang Xie ◽  
Hong Yao ◽  
Ying Wang
Keyword(s):  
Additive Manufacturing ◽  
Comparative Study ◽  
Surface Cleaning ◽  
Valuable Insight ◽  
Medical Implants ◽  
Post Process ◽  
Metal Printing ◽  
Weak Points ◽  
3D Metal Printing ◽  
3D Printed

In the field of Additive Manufacturing (AM), one of the major applications of laser-based 3D metal printing is the creation of custom implants for medical purposes. However, a significant challenge in the manufacturing of implants using Selective Laser Melting (SLM) is the formation of partially melted particles on the surface of medical implants. These particles result in a multitude of issues including plurality of structurally weak points on the designed implants, obstruction of important design features, and possibility of dislodgement over the service life span, thereby posing a threat to the recipient. To address the above challenges, it is imperative to develop a simple but effective surface cleaning method to remove partially melted particles from the surface without damage to the designed medical implants. In this work, a comparative study was conducted to investigate the effect of both chemical and electro-plasma based cleaning processes on the removal of partially melted particles from the surfaces of 3D printed Ti-6Al-4V medical screw implants. These techniques include chemically polishing implants with HF-HNO3 acid solutions and using an electro-plasma based cleaning process. With the field of additive manufacturing rapidly expanding, this work offers valuable insight on proper post-process treatment of 3D printed parts for future medical purposes in biomedical fields.

DESIGN AND FABRICATION OF PATIENT SPECIFIC ORBITAL FLOOR IMPLANT USING 3D METAL PRINTING

2018 ◽  
Vol 26 (1) ◽  
pp. 76-88
Author(s):  
Julaiha Adnan ◽  
◽  
Nor Azura Mohamed ◽  
Kartini Noorsal ◽  
Victor Devadass ◽  
...  
Keyword(s):  
Orbital Floor ◽  
Patient Specific ◽  
Metal Printing ◽  
3D Metal Printing

3D metal printing in dentistry: An in vitro biomechanical comparative study of two additive manufacturing technologies for full-arch implant-supported prostheses

2020 ◽  
Vol 108 ◽  
pp. 103821
Author(s):  
Thaís Barbin ◽  
Daniele Valente Velôso ◽  
Letícia Del Rio Silva ◽  
Guilherme Almeida Borges ◽  
Anna Gabriella Camacho Presotto ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Comparative Study ◽  
Metal Printing ◽  
3D Metal Printing ◽  
Manufacturing Technologies
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