The emerging role of 3D printing in the fabrication of detection systems

2021 ◽  
pp. 116177
Author(s):  
Enrique Javier Carrasco-Correa ◽  
Ernesto Francisco Simó-Alfonso ◽  
José Manuel Herrero-Martínez ◽  
Manuel Miró
Keyword(s):  
3D Printing ◽  
Detection Systems

scholarly journals Complex Bone Tumors of the Trunk—The Role of 3D Printing and Navigation in Tumor Orthopedics: A Case Series and Review of the Literature

2021 ◽  
Vol 11 (6) ◽  
pp. 517
Author(s):  
Martin Schulze ◽  
Georg Gosheger ◽  
Sebastian Bockholt ◽  
Marieke De Vaal ◽  
Tymo Budny ◽  
...  
Keyword(s):  
3D Printing ◽  
Tumor Resection ◽  
Case Series ◽  
Main Process ◽  
Patient Centered ◽  
Individual Care ◽  
Real Time Visualization ◽  
Bone Tumor Resection ◽  
Virtual Modeling

The combination of 3D printing and navigation promises improvements in surgical procedures and outcomes for complex bone tumor resection of the trunk, but its features have rarely been described in the literature. Five patients with trunk tumors were surgically treated in our institution using a combination of 3D printing and navigation. The main process includes segmentation, virtual modeling and build preparation, as well as quality assessment. Tumor resection was performed with navigated instruments. Preoperative planning supported clear margin multiplanar resections with intraoperatively adaptable real-time visualization of navigated instruments. The follow-up ranged from 2–15 months with a good functional result. The present results and the review of the current literature reflect the trend and the diverse applications of 3D printing in the medical field. 3D printing at hospital sites is often not standardized, but regulatory aspects may serve as disincentives. However, 3D printing has an increasing impact on precision medicine, and we are convinced that our process represents a valuable contribution in the context of patient-centered individual care.

Role of in situ added cellulose nanocrystals as rheological modulator of novel waterborne polyurethane urea for 3D-printing technology

Cellulose ◽  
2021 ◽  
Author(s):  
Julen Vadillo ◽  
Izaskun Larraza ◽  
Tamara Calvo-Correas ◽  
Nagore Gabilondo ◽  
Christophe Derail ◽  
...  
Keyword(s):  
3D Printing ◽  
Cellulose Nanocrystals ◽  
Waterborne Polyurethane ◽  
Printing Technology ◽  
3D Printing Technology

A review on the role of 3D printing in the fight against COVID-19: safety and challenges

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Sapam Ningthemba Singh ◽  
Vavilada Satya Swamy Venkatesh ◽  
Ashish Bhalchandra Deoghare
Keyword(s):  
Supply Chain ◽  
3D Printing ◽  
Three Dimensional ◽  
Content Type ◽  
Medical Supplies ◽  
Future Challenges ◽  
Safety And Reliability ◽  
3D Printed ◽  
Comprehensive Study

Purpose During the COVID-19 pandemic, the three-dimensional (3D) printing community is actively participating to address the supply chain gap of essential medical supplies such as face masks, face shields, door adapters, test swabs and ventilator valves. This paper aims to present a comprehensive study on the role of 3D printing during the coronavirus (COVID-19) pandemic, its safety and its challenges. Design/methodology/approach This review paper focuses on the applications of 3D printing in the fight against COVID-19 along with the safety and challenges associated with 3D printing to fight COVID-19. The literature presented in this paper is collected from the journal indexing engines including Scopus, Google Scholar, ResearchGate, PubMed, Web of Science, etc. The main keywords used for searches were 3D printing COVID-19, Safety of 3D printed parts, Sustainability of 3D printing, etc. Further possible iterations of the keywords were used to collect the literature. Findings The applications of 3D printing in the fight against COVID-19 are 3D printed face masks, shields, ventilator valves, test swabs, drug deliveries and hands-free door adapters. As most of these measures are implemented hastily, the safety and reliability of these parts often lacked approval. The safety concerns include the safety of the printed parts, operators and secondary personnel such as the workers in material preparation and transportation. The future challenges include sustainability of the process, long term supply chain, intellectual property and royalty-free models, etc. Originality/value This paper presents a comprehensive study on the applications of 3D printing in the fight against COVID-19 with emphasis on the safety and challenges in it.

scholarly journals Application of 3D printing and distributed manufacturing during the first-wave of COVID-19 pandemic. Our experience at a third-level university hospital.

2020 ◽  
Author(s):  
Ruben Perez-Mañanes ◽  
Sonia García de San José ◽  
Manuel Desco-Menéndez ◽  
Ignacio Sánchez-Arcilla ◽  
Esmeralda González-Fernández ◽  
...  
Keyword(s):  
3D Printing ◽  
Hospital Environment ◽  
Production Model ◽  
Maximum Efficiency ◽  
Special Importance ◽  
Distributed Manufacturing ◽  
Printing Technology ◽  
3D Printing Technology ◽  
Custom Made

Abstract Background 3D printing and distributed manufacturing represent a paradigm shift in the health system that is becoming critical during the COVID-19 pandemic. University hospitals are also taking on the role of manufacturers of custom-made solutions thanks to 3D printing technology. Case Presentation We present a monocentric observational case study regarding the distributed manufacturing of three groups of products during the period of the COVID-19 pandemic from 14 March to 10 May 2020: personal protective equipment, ventilatory support, and diagnostic and consumable products. Networking during this period has enabled the delivery of a total of 17,276 units of products manufactured using 3D printing technology. The most manufactured product was the face shields and ear savers, while the one that achieved the greatest clinical impact was the mechanical ventilation adapters and swabs. The products were manufactured by individuals in 57.3% of the cases, and our hospital acted as the main delivery node in a hub with 10 other hospitals. The main advantage of this production model is the fast response to stock needs, being able to adapt almost in real time.Conclusions The role of 3D printing in the hospital environment allows the reconciliation of in-house and distributed manufacturing with traditional production, providing custom-made adaptation of the specifications, as well as maximum efficiency in the working and availability of resources, which is of special importance at critical times for health systems such as the current COVID-19 pandemic.

Learning About the Effects of Alert Uncertainty in Attack and Defend Decisions via Cognitive Modeling

2020 ◽  
pp. 001872082094542
Author(s):  
Palvi Aggarwal ◽  
Frederic Moisan ◽  
Cleotilde Gonzalez ◽  
Varun Dutt
Keyword(s):  
Cognitive Modeling ◽  
Training Dataset ◽  
Theoretic Approach ◽  
Cognitive Mechanisms ◽  
Test Dataset ◽  
Detection Systems ◽  
Instance Based Learning ◽  
Game Theoretic ◽  
Game Theoretic Approach

Objective We aim to learn about the cognitive mechanisms governing the decisions of attackers and defenders in cybersecurity involving intrusion detection systems (IDSs). Background Prior research has experimentally studied the role of the presence and accuracy of IDS alerts on attacker’s and defender’s decisions using a game-theoretic approach. However, little is known about the cognitive mechanisms that govern these decisions. Method To investigate the cognitive mechanisms governing the attacker’s and defender’s decisions in the presence of IDSs of different accuracies, instance-based learning (IBL) models were developed. One model (NIDS) disregarded the IDS alerts and one model (IDS) considered them in the instance structure. Both the IDS and NIDS models were trained in an existing dataset where IDSs were either absent or present and they possessed different accuracies. The calibrated IDS model was tested in a newly collected test dataset where IDSs were present 50% of the time and they possessed different accuracies. Results Both the IDS and NIDS models were able to account for human decisions in the training dataset, where IDS was absent or present and it possessed different accuracies. However, the IDS model could accurately predict the decision-making in only one of the several IDS accuracy conditions in the test dataset. Conclusions Cognitive models like IBL may provide some insights regarding the cognitive mechanisms governing the decisions of attackers and defenders in conditions not involving IDSs or IDSs of different accuracies. Application IBL models may be helpful for penetration testing exercises in scenarios involving IDSs of different accuracies.

scholarly journals The Role of 3D Printing in Colorectal Surgery: Current Evidence and Future Perspectives

In Vivo ◽  
2019 ◽  
Vol 33 (2) ◽  
pp. 297-302
Author(s):  
XENOFON PAPAZARKADAS ◽  
ELEFTHERIOS SPARTALIS ◽  
DIMITRIOS PATSOURAS ◽  
ARGYRIOS IOANNIDIS ◽  
DIMITRIOS SCHIZAS ◽  
...  
Keyword(s):  
3D Printing ◽  
Colorectal Surgery ◽  
Current Evidence ◽  
Future Perspectives

The Role of 3D Printing Technology as an Additional Tool in Unilateral Condylar Hyperplasia Surgical Planning

2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Piero Cascone ◽  
Francesco D’Alessandro ◽  
Emanuela Gallo ◽  
Giuseppe Cicero ◽  
Valentino Vellone
Keyword(s):  
3D Printing ◽  
Surgical Planning ◽  
Printing Technology ◽  
Additional Tool ◽  
3D Printing Technology ◽  
Condylar Hyperplasia

SFF of Ceramic Parts: Literature Overview and Direct Experiments

2004 ◽  
Vol 860 ◽  
Author(s):  
Gian N. Babini ◽  
Andrea Fedele ◽  
Luca Settineri
Keyword(s):  
3D Printing ◽  
Functional Properties ◽  
State Of The Art ◽  
Solid Freeform Fabrication ◽  
Freeform Fabrication ◽  
Mechanical Parts ◽  
Literature Overview ◽  
Great Development

ABSTRACTThe great development of Solid Freeform Fabrication (SFF) techniques from their introduction into the market, more than 20 years ago, has fueled their diffusion in the mechanical sector to the point that they are today an indispensable component of the process of designing, engineering and producing a mechanical parts.At the same time, these techniques found application in different and even distant sectors, like biomedicine or architecture. This lead to the necessity of developing SFF processes suitable for materials different from those they were at the beginning thought for. Such techniques, taken from the original ones or entirely developed ex-novo, allowed for a surprising differentiation of the applications.The fabrication of ceramic parts by SFF techniques is a relatively new field which is widening the role of such materials in sectors not traditionally covered.The present paper reports a state of the art of the techniques that appear more effective for the production of ceramic goods, with representative or even functional properties.Further, some results of 3D Printing experiments of alumina parts will be presented.

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