scholarly journals Overview of the use of 3D printing in forensic medicine

Rechtsmedizin ◽  
2020 ◽  
Vol 30 (5) ◽  
pp. 292-299
Author(s):  
W. Schweitzer ◽  
M. Thali ◽  
E. Aldomar ◽  
L. Ebert
Keyword(s):  
Thermal Properties ◽  
3D Printing ◽  
Rapid Prototyping ◽  
Forensic Medicine ◽  
Low Cost ◽  
Spare Parts ◽  
Mechanical Anisotropy ◽  
Development Phase ◽  
Biomechanical Models ◽  
End Products

Abstract In forensic medicine the use of so-called 3D printing is a niche application, whereas developments elsewhere in this field are rapidly advancing worldwide. The most common and widespread technology is fusion deposit modelling with polylactic acids (PLA). Although the equipment and materials may be relatively inexpensive and 3D printing relatively fast, the resulting end products tend to also have negative properties, such as poor durability and mechanical anisotropy, which may be an issue depending on the application. In forensic medicine, applications in the field of weapons technology and biomechanical models are realistic and 3D printing is already being used for demonstrations at court hearings and in teaching and also as a technique for building spare parts or accessories. Having a low-cost option for rapid prototyping on-site is particularly useful for the development phase. For finished 3D designs more expensive manufacturing options with a choice of materials with significantly broader mechanical or thermal properties are available. As the technology is undergoing major changes, one should carefully consider whether to enter the field oneself, buy own hardware, use a 3D printing service or seek cooperation possibly with a nearby partner.

scholarly journals Novel 3D-Printed MEMS Magnetometer with Optical Detection

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 783 ◽  
Author(s):  
Matthias Kahr ◽  
Wilfried Hortschitz ◽  
Harald Steiner ◽  
Michael Stifter ◽  
Andreas Kainz ◽  
...  
Keyword(s):  
3D Printing ◽  
Product Development ◽  
Rapid Prototyping ◽  
Low Cost ◽  
High Accuracy ◽  
Structural Performance ◽  
Sensitivity Measurement ◽  
Optical Readout ◽  
3D Printed ◽  
Working Principle

This paper reports a novel 3D printed MEMS magnetometer with optical readout, which demonstrates the advantages of 3D printing technology in terms of rapid prototyping. Low-cost and fast product development cycles favour 3D printing as an effective tool. Sensitivity measurement with such devices indicate high accuracy and good structural performance, considering material and technological uncertainties. This paper is focusing on the novelty of the rapid, 3D-printing prototyping approach and verification of the working principle for printed MEMS magnetometers.

scholarly journals Photogrammetry and 3D prototyping: A low-cost resource for training in veterinary orthopedics

2019 ◽  
Vol 49 (12) ◽  
Author(s):  
Luiz Felipe Souza de Lima ◽  
Anna Júlia Brandão Paes de Barros ◽  
Andresa de Cássia Martini ◽  
Matias Bassinello Stocco ◽  
Antonio Henrique Kuczmarski ◽  
...  
Keyword(s):  
Veterinary Medicine ◽  
3D Printing ◽  
Rapid Prototyping ◽  
Surgical Planning ◽  
Low Cost ◽  
Fracture Reduction ◽  
Innovative Technology ◽  
Virtual Model ◽  
Experimental Animals ◽  
Biological Contamination

ABSTRACT: Rapid prototyping (RP) is an innovative technology that allows one to obtain a prototype of a mold quickly and accurately from a virtual model. This study aimed to establish the use of photogrammetry and 3D prototyping for the production of bone biomodels of the canine species for training in orthopedic techniques in veterinary medicine. Virtual bio-modelling was performed by the photogrammetry technique with commercial anatomical pieces, and physical biomodelling was performed by 3D printing. Osteotomies were performed on the biomodels that served as platforms for osteosynthesis of the femur and ileum, and the final product was not associated with a risk of biological contamination, was able to support special orthopedic materials, and was used for training and surgical planning. We concluded that the use of photogrammetry and RP for the production of bone biomodels of the canine species enabled techniques for fracture reduction to be performed with the use of special instruments, enabling training in the area of veterinary orthopedics in an economically viable manner with an alternative to experimental animals.

scholarly journals 3D printing for low cost, rapid prototyping of eyelid crutches

Orbit ◽  
2018 ◽  
Vol 38 (4) ◽  
pp. 342-346 ◽  
Author(s):  
Michael G. Sun ◽  
Duangmontree Rojdamrongratana ◽  
Mark I. Rosenblatt ◽  
Vinay K. Aakalu ◽  
Charles Q. Yu
Keyword(s):  
3D Printing ◽  
Rapid Prototyping ◽  
Low Cost

The role of rapid prototyping for surgical planning in a case of caval thrombosis from kidney carcinoma

2020 ◽  
Vol 4 (2) ◽  
pp. 75-82
Author(s):  
Elena Huong Tran ◽  
Domenico Caputo ◽  
Annunziata D'Elia ◽  
Andrea Campisi ◽  
Andrea Soluri ◽  
...  
Keyword(s):  
Decision Making ◽  
3D Printing ◽  
Rapid Prototyping ◽  
Surgical Planning ◽  
Low Cost ◽  
Point Of View ◽  
Decision Making Process ◽  
Scenario Method ◽  
The Impact

Aim: To define the impact of rapid prototyping for surgical planning in the surgeon’s decision-making process when dealing with a very complex clinical scenario. Method & framework: A straightforward questionnaire involving four simple questions regarding specific technical aspects was administered to the surgeons to evaluate their basic judgments on the surgical strategy to follow. Images from a standard CT scan were used for the subsequent processing and 3D printing of a very cheap anatomical model of a surgical scenario with a low-cost printer, which was shared with the surgeons. At last, the same questionnaire was re-administered to the surgeons. The degree of judgment was found to be modified by approximately 25%. Conclusion: From a surgical point of view, the interaction with technical experts seems to add precious information to the clinical pre-surgical scenario for decision making. Nevertheless, 3D printing was judged too slow for routine adoption.

scholarly journals Introducing and Sustaining Traditional Fabrication Methods in the Context of Teaching Prototyping for Engineering Design

2018 ◽  
Author(s):  
Patrick Dumond
Keyword(s):  
Critical Thinking ◽  
3D Printing ◽  
Rapid Prototyping ◽  
Engineering Education ◽  
Engineering Design ◽  
Engineering Students ◽  
New Technologies ◽  
Low Cost ◽  
Engineering Designs

The introduction of Makerspaces across Canada has made it much easier for universities to provide engineering students the opportunity to “close the loop” on engineering design, by giving students the means to implement their projects. However, with the introduction of newer rapid prototyping technologies such as 3D printing, students forget or are unware that traditional fabrication technologies can often be more efficient then these new technologies, depending on the situation.This paper discusses the development and sustainability of traditional fabrication methods through the development of low cost dedicated facilities used in interdisciplinary engineering design courses. The introduction of these traditional fabrication methods have proven to increase the efficiency, creativity and critical thinking of engineering students related to the development of quick and iterative prototypes for their engineering designs. However, much work remains to be done if these facilities are to be optimized and sustained in this new engineering education paradigm.

Constructive Optimisation of the Propeller Type Mixing Devices Using the Virtual and Rapid Prototyping

2017 ◽  
Vol 68 (3) ◽  
pp. 453-458 ◽  
Author(s):  
Daniel Besnea ◽  
Alina Spanu ◽  
Iuliana Marlena Prodea ◽  
Gheorghita Tomescu ◽  
Iolanda Constanta Panait
Keyword(s):  
Rapid Prototyping ◽  
Low Cost ◽  
Scale Up ◽  
Three Dimensional ◽  
Rapid Identification ◽  
Multidisciplinary Optimization ◽  
External Diameter ◽  
Process Industries ◽  
Parametric Cad ◽  
Shaft Torque

The paper points out the advantages of rapid prototyping for improving the performances/constructive optimization of mixing devices used in process industries, here exemplified to propeller types ones. The multidisciplinary optimization of the propeller profile affords its design using parametric CAD methods. Starting from the mathematical curve equations proposed for the blade profile, it was determined its three-dimensional virtual model. The challenge has been focused on the variation of propeller pitch and external diameter. Three dimensional ranges were manufactured using the additive manufacturing process with Marker Boot 3D printer. The mixing performances were tested on the mixing equipment measuring the minimum rotational speed and the correspondent shaft torque for complete suspension achieved for each of the three models. The virtual and rapid prototyping method is newly proposed by the authors to obtain the basic data for scale up of the mixing systems, in the case of flexible production (of low quantities), in which both the nature and concentration of the constituents in the final product varies often. It is an efficient and low cost method for the rapid identification of the optimal mixing device configuration, which contributes to the costs reduction and to the growing of the output.

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