3D Printed Medical Model to Resolve Cleft Alveolus Defect: A Case Study

2017 ◽  
Vol 2 (2) ◽  
pp. 8 ◽  
Author(s):  
Santosh Kumar Malyala Kumar Malyala
Keyword(s):  
3D Printing ◽  
Medical Model ◽  
Single Layer ◽  
Bony Defect ◽  
Soft Data ◽  
Current Case ◽  
Medical Software ◽  
3D Printed ◽  
Surgical Field

3D printing or Additive Manufacturing (AM) technology has been in existence for more than 30 years. The footprint of this technology has been entered into almost each and every industry such as medical, dental, aerospace, construction, automobile, etc. One of the most benefited industries using AM is medical industry. In case of medical or maxillofacial surgical field, each and every patient has a unique anatomy. The traditional way of analyzing the patient anatomy was by using X-ray with single layer or CT scans with multiple layers information is available that too as soft data. 3D printing technology provides a physical model from virtual data of the patient anatomy using CT/MRI/CBCT information with the help of medical software. The physical 3D printed medical model is very useful for pre planning complex surgeries. The current case study is regarding a 35 years male patient, who presented with a defect in maxillary anterior alveolar region and nasal regurgitation of fluids. Based on chief complaint, history and clinical examination, a diagnosis of cleft alveolus was made. CT scan was advised to see the defect in all the 3 planes. The surgery was planned for reconstruction of the bony defect and to prevent escape of oral fluids into nasal cavity. Treatment planning and mock surgery were performed on the 3D printed medical model, which reduced about 30% of total surgery time thereby decreasing the complications.

3D printing for chest wall reconstructive surgery

2020 ◽  
Vol 26 (7) ◽  
pp. 1217-1225
Author(s):  
Ranjeet Agarwala ◽  
Carlos J. Anciano ◽  
Joshua Stevens ◽  
Robert Allen Chin ◽  
Preston Sparks
Keyword(s):  
3D Printing ◽  
Chest Wall ◽  
Reconstructive Surgery ◽  
3D Model ◽  
Titanium Plate ◽  
Specific Patient ◽  
Content Type ◽  
3D Printed ◽  
Wall Construction

Purpose The purpose of the paper was to present a specific case study of how 3D printing was introduced in the chest wall construction process of a specific patient with unique medical condition. A life-size 3D model of the patient’s chest wall was 3D printed for pre-surgical planning. The intent was to eliminate the need for operative exposure to map the pathological area. The model was used for preoperative visualization and formation of a 1-mm thick titanium plate implant, which was placed in the patient during chest wall reconstructive surgery. The purpose of the surgery was to relive debilitating chronic pain due to right scapular entrapment. Design/methodology/approach The patient was born with a twisted spine. Over time, it progressed to severe and debilitating scoliosis, which required the use of a thoracic brace. Computerized tomography (CT) data were converted to a 3D printed model. The model was used to size and form a 1-mm thick titanium plate implant. It was also used to determine the ideal location for placement of the plate during thoracotomy preoperatively. Findings The surgery, aided by the model, was successful and resulted in a significantly smaller incision. The techniques reduced invasiveness and enabled the doctors to conduct the procedure efficiently and decreased surgery time. The patient experienced relief of the chronic debilitating pain and no longer need the thoracic brace. Originality/value The 3D model facilitated pre-operative planning and modeling of the implant. It also enabled accurate incision locations of the thoracotomy site and placement of the implant. Although chest wall reconstruction surgeries have been undertaken, this paper documents a specific case study of chest wall construction fora specific patient with unique pathological conditions.

scholarly journals Open Design and 3D Printing of Face Shields: The Case Study of a UK-China Initiative

2020 ◽  
Vol 13 (3) ◽  
pp. 511-524
Author(s):  
Simeng Li ◽  
Liang Hao ◽  
Qiaoyu Chen ◽  
Lu Zhang ◽  
Ping Gong ◽  
...  
Keyword(s):  
3D Printing ◽  
Healthcare Workers ◽  
Good Practice ◽  
Analysis Method ◽  
Study Approach ◽  
Open Design ◽  
Content Analysis Method ◽  
3D Printed ◽  
The Uk

At the start of the COVID-19 outbreak, many countries lacked personal protective equipment (PPE) to protect healthcare workers. To address this problem, open design and 3D printing technologies were adopted to provide much-in-need PPEs for key workers. This paper reports an initiative by designers and engineers in the UK and China. The case study approach and content analysis method were used to study the stakeholders, the design process, and other relevant issues such as regulation. Good practice and lessons were summarised, and suggestions for using distributed 3D printing to supply PPEs were made. It concludes that 3D printing has played an important role in producing PPEs when there was a shortage of supply, and distributed manufacturing has the potential to quickly respond to local small-bench production needs. In the future, clearer specification, better match of demands and supply, and quicker evaluation against relevant regulations will provide efficiency and quality assurance for 3D printed PPE supplies.

scholarly journals A 3D printing Short Course: A Case Study for Applications in the Geoscience Teaching and Communication for Specialists and Non-experts

2021 ◽  
Vol 9 ◽  
Author(s):  
Sergey Ishutov ◽  
Kevin Hodder ◽  
Rick Chalaturnyk ◽  
Gonzalo Zambrano-Narvaez
Keyword(s):  
3D Printing ◽  
Data Communication ◽  
Course Evaluation ◽  
Digital Design ◽  
Digital Models ◽  
3D Print ◽  
Short Course ◽  
3D Printed ◽  
Geoscience Research

3D printing developed as a prototyping method in the early 1980s, yet it is considered as a 21st century technology for transforming digital models into tangible objects. 3D printing has recently become a critical tool in the geoscience research, education, and technical communication due to the expansion of the market for 3D printers and materials. 3D printing changes the perception of how we interact with our data and how we explain our science to non-experts, researchers, educators, and stakeholders. Hence, a one-day short course was designed and delivered to a group of professors, students, postdoctoral fellows, and technical staff to present the application of 3D printing in teaching and communication concepts in the geoscience. This case study was aimed at evaluating how a diverse group of participants with geoscience and engineering background and no prior experience with computer-aided modeling (CAD) or 3D printing could understand the principles of different 3D printing techniques and apply these methods in their respective disciplines. In addition, the course evaluation questionnaire allowed us to assess human perception of tangible and digital models and to demonstrate the effectiveness of 3D printing in data communication. The course involved five modules: 1) an introduction lecture on the 3D printing methods and materials; 2) an individual CAD modeling exercise; 3) a tour to 3D printing facilities with hands-on experience on model processing; 4) a tour to experimentation facilities where 3D-printed models were tested; and 5) group activities based on the examples of how to apply 3D printing in the current or future geoscience research and teaching. The participants had a unique opportunity to create a digital design at the beginning of the course using CAD software, analyze it and 3D print the final model at the end of the course. While this course helped the students understand how rendering algorithms could be used as a learning aid, educators gained experience in rapid preparation of visual aids for teaching, and researchers gained skills on the integration of the digital datasets with 3D-printed models to support societal and technical objectives.

scholarly journals Design Optimisation for 3D printed SLM objects

2021 ◽  
Author(s):  
◽  
Stephen Tane Hill
Keyword(s):  
3D Printing ◽  
Selective Laser Melting ◽  
Manufacturing Process ◽  
Computer Aided Design ◽  
Design Research ◽  
Process Models ◽  
Physical Models ◽  
Laser Melting ◽  
3D Printed

<p>A common misconception about additive manufacturing (3D printing) is that any shape can be made in any material at the press of a button. The reality is that each process and material requires distinct Computer Aided Design (CAD) files that need to be optimised to the physical limitations of the manufacturing process. This optimisation process can have significant effects on the designer’s aesthetic intentions. Selective Laser Melting (SLM) is the new benchmark for functional 3D printed titanium designs where the optimisation process plays an important role in the outcome of the end product. The limitations imposed by the manufacturing process include build support material, heat transfer and post processing and designs are required to be optimised before the manufacturing process can commence. To date, case studies written on the SLM process have focused largely on engineering and functional applications in particular within the medical industry. However; this process has not been extensively studied from a visual and aesthetic industrial design perspective. This research will gather specific knowledge about the technical limitations involved in the Selective Laser Melting process and explore through a case study approach how a designer s intentions can be maintained or even enhanced when using this technology. With greater understanding of the SLM technology, the optimisation process may further provide positive outcomes to the designer by saving time, money and waste.  This case study is built on an existing product design file as a base model. Refinements to the model were made based on findings from existing design research as well as digital and physical models. The existing design research was focused on challenges designers encounter using 3D printing technologies including SLM as well as the optimisation process. Models and design iterations were developed using Nigel Cross’s four step model of exploration, generation, evaluation and communication. By iteratively redesigning aspects of the model to conform to the SLM limitations, this study reviews opportunities for areas to reduce material without compromising the design intent.</p>

3D printing: Of signs and objects

Semiotica ◽  
2017 ◽  
Vol 2017 (218) ◽  
pp. 165-177 ◽  
Author(s):  
John Perkins-Buzo
Keyword(s):  
3D Printing ◽  
Mass Production ◽  
Rare Case ◽  
Physical Object ◽  
Complex Case ◽  
Simple Extension ◽  
Manufacturing Technique ◽  
Computer Based ◽  
3D Printed

Abstract3D printing has surely come of age. Widely available, and integrated into many computer-based design and animation curricula, it almost seems to have become a simple extension of what we already had in 2D printing. A 2D image (e.g., of a pipe) acts as the basis of a sign, which, perhaps upon further twists of the semiotic spiral, may lead one to cognition of a 3D physical pipe. But then, perhaps not. And only in a rare case would the physical pipe in turn find use as a sign of the aforesaid 2D image. With 3D printing, this order of semiosis no longer applies. Since 3D printing mainly occurs as a non-mass-production manufacturing technique, a 3D-printed artifact acts as a physical object – and generally it is printed to act precisely in that manner. It is a being that has an ontic difference from its digital source. The case of 3D printing provides an intriguing, complex, case study for semiosis, since the printables move in and out of the virtual and physical.

scholarly journals Optimization of community-led 3D printing for the production of protective face shields

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Peter Chengming Zhang ◽  
Yousuf Ahmed ◽  
Isra M. Hussein ◽  
Edem Afenu ◽  
Manon Feasson ◽  
...  
Keyword(s):  
3D Printing ◽  
Health Workers ◽  
Production Capacity ◽  
Start Time ◽  
Case Presentation ◽  
Global Pandemic ◽  
The Face ◽  
3D Printers ◽  
3D Printed

Abstract Background As the healthcare system faced an acute shortage of personal protective equipment (PPE) during the COVID-19 pandemic, the use of 3D printing technologies became an innovative method of increasing production capacity to meet this acute need. Due to the emergence of a large number of 3D printed face shield designs and community-led PPE printing initiatives, this case study examines the methods and design best optimized for community printers who may not have the resources or experience to conduct such a thorough analysis. Case presentation We present the optimization of the production of 3D printed face shields by community 3D printers, as part of an initiative aimed at producing PPE for healthcare workers. The face shield frames were manufactured using the 3DVerkstan design and were coupled with an acetate sheet to assemble a complete face shield. Rigorous quality assurance and decontamination protocols ensured community-printed PPE was satisfactory for healthcare use. Conclusion Additive manufacturing is a promising method of producing adequate face shields for frontline health workers because of its versatility and quick up-start time. The optimization of stacking and sanitization protocols allowed 3D printing to feasibly supplement formal public health responses in the face of a global pandemic.

scholarly journals HANDHELD VOLUMETRIC SCANNER FOR 3D PRINTED INTEGRATIONS OF HISTORICAL ELEMENTS: COMPARISON AND RESULTS

2019 ◽  
Vol XLII-2/W15 ◽  
pp. 381-388 ◽  
Author(s):  
D. De Luca ◽  
M. Del Giudice ◽  
N. Grasso ◽  
F. Matrone ◽  
A. Osello ◽  
...  
Keyword(s):  
3D Printing ◽  
Second World War ◽  
World War ◽  
Architectural Elements ◽  
Recent Developments ◽  
Speed Up ◽  
3D Printed ◽  
Instruments And Techniques ◽  
Second World

<p><strong>Abstract.</strong> The latest technologies in the field of geomatics and additive manufacturing can provide a significant support to the restoration and conservation activities of Cultural Heritage (CH). In particular, the recent developments for both the 3D scanning techniques and the 3D printing systems are able to speed up the survey and the reconstruction of historical fragments gone lost. This research compares different meshes, obtained with different instruments and techniques, in particular a medium and a short-range volumetric handheld camera, with the aim of evaluating the best solution for the 3D printing and provide some guidelines for this kind of operation. Therefore, the focus is mainly on identifying the most effective solution to describe, represent and subsequently model small architectural details in the most automatic way, in order to step from the survey to the final printed result in the shortest time possible. Moreover, an attempt to integrate and complete not only sculptural details, by now well stated in the state of art, but also architectural elements, respecting the principles of reversibility and material recognisability typical of the modern restoration theories, has been done. The case study examined is an historical wooden gilded door with the lack of some decorative parts, in a church in the centre of Turin (Italy), symbol of the baroque architecture and damaged by a fire occurred during the Second World War.</p>

scholarly journals Design Optimisation for 3D printed SLM objects

2021 ◽  
Author(s):  
◽  
Stephen Tane Hill
Keyword(s):  
3D Printing ◽  
Selective Laser Melting ◽  
Manufacturing Process ◽  
Computer Aided Design ◽  
Design Research ◽  
Process Models ◽  
Physical Models ◽  
Laser Melting ◽  
3D Printed

<p>A common misconception about additive manufacturing (3D printing) is that any shape can be made in any material at the press of a button. The reality is that each process and material requires distinct Computer Aided Design (CAD) files that need to be optimised to the physical limitations of the manufacturing process. This optimisation process can have significant effects on the designer’s aesthetic intentions. Selective Laser Melting (SLM) is the new benchmark for functional 3D printed titanium designs where the optimisation process plays an important role in the outcome of the end product. The limitations imposed by the manufacturing process include build support material, heat transfer and post processing and designs are required to be optimised before the manufacturing process can commence. To date, case studies written on the SLM process have focused largely on engineering and functional applications in particular within the medical industry. However; this process has not been extensively studied from a visual and aesthetic industrial design perspective. This research will gather specific knowledge about the technical limitations involved in the Selective Laser Melting process and explore through a case study approach how a designer s intentions can be maintained or even enhanced when using this technology. With greater understanding of the SLM technology, the optimisation process may further provide positive outcomes to the designer by saving time, money and waste.  This case study is built on an existing product design file as a base model. Refinements to the model were made based on findings from existing design research as well as digital and physical models. The existing design research was focused on challenges designers encounter using 3D printing technologies including SLM as well as the optimisation process. Models and design iterations were developed using Nigel Cross’s four step model of exploration, generation, evaluation and communication. By iteratively redesigning aspects of the model to conform to the SLM limitations, this study reviews opportunities for areas to reduce material without compromising the design intent.</p>

scholarly journals An Investigation to Study the Effect of Process Parameters on the Strength and Fatigue Behavior of 3D-Printed PLA-Graphene

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3218
Author(s):  
Anouar EL MAGRI ◽  
Saeedeh VANAEI ◽  
Mohammadali SHIRINBAYAN ◽  
Sébastien Vaudreuil ◽  
Abbas TCHARKHTCHI
Keyword(s):  
3D Printing ◽  
Process Parameters ◽  
Coupling Effect ◽  
Fatigue Behavior ◽  
Tensile Tests ◽  
Fatigue Lifetime ◽  
Thermally Driven ◽  
Static Tensile ◽  
3D Printed

3D printing, an additive manufacturing process, draws particular attention due to its ability to produce components directly from a 3D model; however, the mechanical properties of the produced pieces are limited. In this paper, we present, from the experimental aspect, the fatigue behavior and damage analysis of polylactic acid (PLA)-Graphene manufactured using 3D printing. The main purpose of this paper is to analyze the combined effect of process parameters, loading amplitude, and frequency on fatigue behavior of the 3D-printed PLA-Graphene specimens. Firstly, a specific case study (single printed filament) was analyzed and compared with spool material for understanding the nature of 3D printing of the material. Specific experiments of quasi-static tensile tests are performed. A strong variation of fatigue strength as a function of the loading amplitude, frequency, and process parameters is also presented. The obtained experimental results highlight that fatigue lifetime clearly depends on the process parameters as well as the loading amplitude and frequency. Moreover, when the frequency is 80 Hz, the coupling effect of thermal and mechanical fatigue causes self-heating, which decreases the fatigue lifetime. This paper comprises useful data regarding the mechanical behavior and fatigue lifetime of 3D-printed PLA-Graphene specimens. In fact, it evaluates the effect of process parameters based on the nature of this process, which is classified as a thermally-driven process.

scholarly journals Case Study the Benefits of Integrating 3D Printing into Prosthetics by Comparing a Traditional Manufactured Prosthesis to a 3D Manufactured Transradial Prosthesis

2021 ◽  
Vol 10 (2) ◽  
Author(s):  
Courtney Mortier ◽  
Kimberly Tetmeyer
Keyword(s):  
3D Printing ◽  
Statistical Significance ◽  
Past Research ◽  
Time Frame ◽  
The Past ◽  
Frame Difference ◽  
Confounding Variables ◽  
Similar Survey ◽  
3D Printed

This research study will be looking at the benefits and time-frame benefits of 3D printing. The purpose of this is to prove how the data collected agrees with past research studies on how the integration of 3D printing technology into the field of orthotics and prosthetics is considered beneficial. Participant one was given two sets of 10 questions to find a statistical significance between a traditional transradial prosthesis and a 3D manufactured transradial prosthesis. By doing this I then compared participant one's answers to a similar survey given to participants two and three, then drew the connection of how it is much more beneficial while also accounting for confounding variables. Consequently, this study concluded that the majority of answers benefited the integration of 3D printing. It proved this by having the participant explain their answers and also compare a traditional prosthesis to a 3D printed prosthesis specifically explaining the time-frame difference and the benefits of having the digitally manufactured prosthesis. This indicated how my research did support the past research done on this specific topic on how it is beneficial that 3D manufacturing should be integrated into prosthetics and orthotics. This study is solely correlational and analyzed data, meaning, it does not actually prove anything but was simply done to show the connection of the topic. With the results of this research it will add more support to the current body of research. 

Sign in / Sign up

Export Citation Format

Share Document