1
|
Espadinha-Cruz P, Neves A, Matos F, Godina R. Development of a maturity model for additive manufacturing: A conceptual model proposal. Heliyon 2023; 9:e16099. [PMID: 37234647 PMCID: PMC10205518 DOI: 10.1016/j.heliyon.2023.e16099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 05/01/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023] Open
Abstract
Additive manufacturing (AM) is an emerging area with the potential to modify present business models in the near future. In contrast with conventional manufacturing (CM), AM allows the development of a product from a smaller amount of raw material, while allowing an improvement in properties in terms of weight and functionality. Its production flexibility and creativity in terms of materials have enabled not only the industry to use this technology, but also has been used in healthcare (e.g., in the production of human tissue) and by the final consumer. Despite the invaluable opportunities that this technology could provide, the uncertainties concerning its future developments and impacts on business models remain. New business models in AM will convey the need to: specialize the workforce in the design of new parts produced locally or remotely; regulation in the use and sharing of intellectual property rights by partner companies or between users; regulate the possibility of reverse engineering of highly customized products; etc. The present research proposes a conceptual maturity model to support the phases of evolution of AM in the industry, in supply chains, and in terms of open business models.
Collapse
Affiliation(s)
- Pedro Espadinha-Cruz
- UNIDEMI, Department of Mechanical and Industrial Engineering, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- Laboratório Associado de Sistemas Inteligentes, LASI, 4800-058 Guimarães, Portugal
| | - Angela Neves
- Department of Mechanical Engineering, Polytechnic Institute of Viseu, 3504-510 Viseu, Portugal
| | - Florinda Matos
- Instituto Universitário de Lisboa (ISCTE-IUL), Centro de Estudos sobre a Mudança Socioeconómica e o Território (DINÂMIA’CET), 1649-026 Lisboa, Portugal
| | - Radu Godina
- UNIDEMI, Department of Mechanical and Industrial Engineering, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- Laboratório Associado de Sistemas Inteligentes, LASI, 4800-058 Guimarães, Portugal
| |
Collapse
|
2
|
Rehearsal simulation to determine the size of device for left atrial appendage occlusion using patient-specific 3D-printed phantoms. Sci Rep 2022; 12:7746. [PMID: 35546178 PMCID: PMC9095622 DOI: 10.1038/s41598-022-11967-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/27/2022] [Indexed: 11/09/2022] Open
Abstract
Left atrial appendage (LAA) occlusion (LAAO) is used to close the finger-like extension from the left atrium with occlusion devices to block the source of thrombosis. However, selection of the devices size is not easy due to various anatomical changes. The purpose of this study is patient-specific, computed tomography angiography (CTA)-based, three-dimensionally (3D) printed LAAO phantoms were applied pre-procedure to determine the size. Ten patients were enrolled prospectively in March 2019 and December 2020. The cardiac structure appearing in CTA was first segmented, and the left atrium and related structures in the LAAO procedure were modeled. The phantoms were fabricated using two methods of fused deposition modeling (FDM) and stereolithography (SLA) 3D printers with thermoplastic polyurethane (TPU) and flexible resin materials and evaluated by comparing their physical and material properties. The 3D-printed phantoms were directly used to confirm the shape of LAA, and to predict the device size for LAAO. In summary, the shore A hardness of TPU of FDM was about 80–85 shore A, and that of flexible resin of SLA was about 50–70 shore A. The measurement error between the STL model and 3D printing phantoms were 0.45 ± 0.37 mm (Bland–Altman, limits of agreement from − 1.8 to 1.6 mm). At the rehearsal, the estimations of device sizes were the exact same with those in the actual procedures of all 10 patients. In conclusion, simulation with a 3D-printed left atrium phantom could be used to predict the LAAO insertion device size accurately before the procedure.
Collapse
|
3
|
Novak JI, Maclachlan LR, Desselle MR, Haskell N, Fitzgerald K, Redmond M. What Qualities are Important for 3D Printed Neurosurgical Training Models? A Survey of Clinicians and Other Health Professionals Following an Interactive Exhibition. ANNALS OF 3D PRINTED MEDICINE 2022. [DOI: 10.1016/j.stlm.2022.100060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
4
|
Pouhaër M, Picart G, Baya D, Michelutti P, Dautel A, Pérard M, Le Clerc J. Design of 3D-printed macro-models for undergraduates' preclinical practice of endodontic access cavities. EUROPEAN JOURNAL OF DENTAL EDUCATION : OFFICIAL JOURNAL OF THE ASSOCIATION FOR DENTAL EDUCATION IN EUROPE 2022; 26:347-353. [PMID: 34358393 DOI: 10.1111/eje.12709] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 05/28/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Endodontic access cavity is one of the steps most feared by dental students. The objective of the present work was to show the design phases of different realistic macro-models of a lower first molar, showing root canal anatomy and the ideal access cavity. MATERIALS AND METHODS Virtual models were designed with MeshMixer, MeshLab and Blender from the data collected (X-rays, CBCT and optical impression) and then printed. Two types of printers-FDM (fused deposition modelling) and SLA (stereolithography) printers-were used to obtain different prototypes which led to final models. A satisfaction questionnaire was then sent to students, after manipulation, to assess the relevance of these models. RESULTS Two final models of a lower first molar with an extended size (×9) were finally printed with an SLA laser printer with a transparent liquid resin. The first model represented the tooth with its optimal endodontic access cavity. The second one was designed to be divided into two parts according to a mesio-distal axis in order to visualise the root canal system. Most students found these macro-models to be effective tools for endodontic training. DISCUSSION 3D printing is a proven technology which is no exception in dentistry. Some authors have already proposed 3D-printed replicas of teeth for endodontic education. Macro-models have been designed, printed and made available to students during preclinical courses before and during training. CONCLUSION These educational macro-models should strengthen the knowledge and skills of students to improve their clinical and future practice within the dental office.
Collapse
Affiliation(s)
- Matéo Pouhaër
- UFR Odontologie, Université de Rennes 1, Rennes, France
| | | | - David Baya
- Service Universitaire de Pédagogie et des TICE (SUPTICE), Université de Rennes 1, Rennes, France
| | - Pierre Michelutti
- Département Génie Mécanique et Productique, IUT Rennes, Université de Rennes 1, Rennes, France
| | - Anne Dautel
- UFR Odontologie, Université de Rennes 1, Rennes, France
- CHU Rennes (Pôle Odontologie), Rennes, France
| | - Matthieu Pérard
- UFR Odontologie, Université de Rennes 1, Rennes, France
- CHU Rennes (Pôle Odontologie), Rennes, France
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, CNRS, Rennes, France
| | - Justine Le Clerc
- UFR Odontologie, Université de Rennes 1, Rennes, France
- CHU Rennes (Pôle Odontologie), Rennes, France
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, CNRS, Rennes, France
| |
Collapse
|
5
|
Karaduman H, Alan Ü, Yiğit EÖ. Beyond "do not touch": the experience of a three-dimensional printed artifacts museum as an alternative to traditional museums for visitors who are blind and partially sighted. UNIVERSAL ACCESS IN THE INFORMATION SOCIETY 2022; 22:1-14. [PMID: 35465029 PMCID: PMC9016689 DOI: 10.1007/s10209-022-00880-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/06/2022] [Indexed: 06/14/2023]
Abstract
Three-dimensional printing, or 3D printing, has been used toward the educational, cultural, and social participation of individuals who are blind and partially sighted (BPS) by providing sensory access by touch. This study describes an example of the use of 3D printing technology to make museums accessible to visitors who are BPS by creating a three-dimensional printed artifacts museum (3D-PAM) that exhibits 3D printed replicas of artifacts from famous museums around the world. Specifically, the aim of the study is to identify the definitions of museums and the general experiences of museum visits by people who are BPS, to have them visit a 3D-PAM, and to unravel their reactions to this experience and their future suggestions for 3D-PAM. Eleven individuals participated in this basic qualitative study. Semi-structured interviews were conducted to uncover their understanding of the experience. Results show that people who are BPS have a negative perception of museums because they are often inaccessible to this group and that the 3D-PAM in our study offered a pleasant experience that contributed to accessibility. These results suggest further that 3D-PAMs, either as an alternative and separate museum type or integrated into existing museums, are highly important for people who are BPS.
Collapse
Affiliation(s)
- Hıdır Karaduman
- Department of Social Studies Education, College of Education, Anadolu University, 26470 Eskişehir, Turkey
| | - Ümran Alan
- Department of Early Childhood Education, College of Education, Anadolu University, 26470 Eskişehir, Turkey
| | - E. Özlem Yiğit
- Department of Social Studies Education, College of Education, Bolu Abant İzzet Baysal University, 14030 Bolu, Turkey
| |
Collapse
|
6
|
Xu Y, Zhang F, Zhai W, Cheng S, Li J, Wang Y. Unraveling of Advances in 3D-Printed Polymer-Based Bone Scaffolds. Polymers (Basel) 2022; 14:polym14030566. [PMID: 35160556 PMCID: PMC8840342 DOI: 10.3390/polym14030566] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/19/2022] [Accepted: 01/24/2022] [Indexed: 02/04/2023] Open
Abstract
The repair of large-area irregular bone defects is one of the complex problems in orthopedic clinical treatment. The bone repair scaffolds currently studied include electrospun membrane, hydrogel, bone cement, 3D printed bone tissue scaffolds, etc., among which 3D printed polymer-based scaffolds Bone scaffolds are the most promising for clinical applications. This is because 3D printing is modeled based on the im-aging results of actual bone defects so that the printed scaffolds can perfectly fit the bone defect, and the printed components can be adjusted to promote Osteogenesis. This review introduces a variety of 3D printing technologies and bone healing processes, reviews previous studies on the characteristics of commonly used natural or synthetic polymers, and clinical applications of 3D printed bone tissue scaffolds, analyzes and elaborates the characteristics of ideal bone tissue scaffolds, from t he progress of 3D printing bone tissue scaffolds were summarized in many aspects. The challenges and potential prospects in this direction were discussed.
Collapse
Affiliation(s)
- Yuanhang Xu
- Basic Research Key Laboratory of General Surgery for Digital Medicine, Affiliated Hospital of Hebei University, Baoding 071000, China; (Y.X.); (F.Z.); (W.Z.); (S.C.)
| | - Feiyang Zhang
- Basic Research Key Laboratory of General Surgery for Digital Medicine, Affiliated Hospital of Hebei University, Baoding 071000, China; (Y.X.); (F.Z.); (W.Z.); (S.C.)
| | - Weijie Zhai
- Basic Research Key Laboratory of General Surgery for Digital Medicine, Affiliated Hospital of Hebei University, Baoding 071000, China; (Y.X.); (F.Z.); (W.Z.); (S.C.)
| | - Shujie Cheng
- Basic Research Key Laboratory of General Surgery for Digital Medicine, Affiliated Hospital of Hebei University, Baoding 071000, China; (Y.X.); (F.Z.); (W.Z.); (S.C.)
| | - Jinghua Li
- Basic Research Key Laboratory of General Surgery for Digital Medicine, Affiliated Hospital of Hebei University, Baoding 071000, China; (Y.X.); (F.Z.); (W.Z.); (S.C.)
- Correspondence: (J.L.); (Y.W.)
| | - Yi Wang
- Basic Research Key Laboratory of General Surgery for Digital Medicine, Affiliated Hospital of Hebei University, Baoding 071000, China; (Y.X.); (F.Z.); (W.Z.); (S.C.)
- National United Engineering Laboratory for Advanced Bearing Tribology, Henan University of Science and Technology, Luoyang 471000, China
- Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
- Correspondence: (J.L.); (Y.W.)
| |
Collapse
|
7
|
Zabala-Travers S. Biomodeling and 3D printing: A novel radiology subspecialty. ANNALS OF 3D PRINTED MEDICINE 2021. [DOI: 10.1016/j.stlm.2021.100038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
8
|
Jin Z, Li Y, Yu K, Liu L, Fu J, Yao X, Zhang A, He Y. 3D Printing of Physical Organ Models: Recent Developments and Challenges. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2101394. [PMID: 34240580 PMCID: PMC8425903 DOI: 10.1002/advs.202101394] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/14/2021] [Indexed: 05/05/2023]
Abstract
Physical organ models are the objects that replicate the patient-specific anatomy and have played important roles in modern medical diagnosis and disease treatment. 3D printing, as a powerful multi-function manufacturing technology, breaks the limitations of traditional methods and provides a great potential for manufacturing organ models. However, the clinical application of organ model is still in small scale, facing the challenges including high cost, poor mimicking performance and insufficient accuracy. In this review, the mainstream 3D printing technologies are introduced, and the existing manufacturing methods are divided into "directly printing" and "indirectly printing", with an emphasis on choosing suitable techniques and materials. This review also summarizes the ideas to address these challenges and focuses on three points: 1) what are the characteristics and requirements of organ models in different application scenarios, 2) how to choose the suitable 3D printing methods and materials according to different application categories, and 3) how to reduce the cost of organ models and make the process simple and convenient. Moreover, the state-of-the-art in organ models are summarized and the contribution of 3D printed organ models to various surgical procedures is highlighted. Finally, current limitations, evaluation criteria and future perspectives for this emerging area are discussed.
Collapse
Affiliation(s)
- Zhongboyu Jin
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Yuanrong Li
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Kang Yu
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Linxiang Liu
- Zhejiang University HospitalZhejiang UniversityHangzhouZhejiang310027China
| | - Jianzhong Fu
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Xinhua Yao
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Aiguo Zhang
- Department of OrthopedicsWuxi Children's Hospital affiliated to Nanjing Medical UniversityWuxiJiangsu214023China
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of Materials Processing and MoldZhengzhou UniversityZhengzhou450002China
| |
Collapse
|
9
|
Seok J, Yoon S, Ryu CH, Kim SK, Ryu J, Jung YS. A Personalized 3D-Printed Model for Obtaining Informed Consent Process for Thyroid Surgery: A Randomized Clinical Study Using a Deep Learning Approach with Mesh-Type 3D Modeling. J Pers Med 2021; 11:jpm11060574. [PMID: 34207419 PMCID: PMC8234549 DOI: 10.3390/jpm11060574] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/12/2021] [Accepted: 06/17/2021] [Indexed: 12/15/2022] Open
Abstract
The aim of this study was to evaluate the usefulness of a personalized 3D-printed thyroid model that characterizes a patient's individual thyroid lesion. The randomized controlled prospective clinical trial (KCT0005069) was designed. Fifty-three of these patients undergoing thyroid surgery were randomly assigned to two groups: with or without a 3D-printed model of their thyroid lesion when obtaining informed consent. We used a U-Net-based deep learning architecture and a mesh-type 3D modeling technique to fabricate the personalized 3D model. The mean 3D printing time was 258.9 min, and the mean price for production was USD 4.23 for each patient. The size, location, and anatomical relationship of the tumor and thyroid gland could be effectively presented using the mesh-type 3D modeling technique. The group provided with personalized 3D-printed models showed significant improvement in all four categories (general knowledge, benefits and risks of surgery, and satisfaction; all p < 0.05). All patients received a personalized 3D model after surgery and found it helpful to understand the disease, operation, and possible complications and their overall satisfaction (all p < 0.05). In conclusion, the personalized 3D-printed thyroid model may be an effective tool for improving a patient's understanding and satisfaction during the informed consent process.
Collapse
Affiliation(s)
- Jungirl Seok
- National Cancer Center, Department of Otorhinolaryngology-Head and Neck Surgery, Goyang-si 10408, Korea; (J.S.); (C.H.R.)
- Department of Biomedical Engineering, College of Medicine, Seoul National University, Seoul 03080, Korea
| | - Sungmin Yoon
- National Cancer Center, Division of Convergence Technology, Goyang-si 10408, Korea;
| | - Chang Hwan Ryu
- National Cancer Center, Department of Otorhinolaryngology-Head and Neck Surgery, Goyang-si 10408, Korea; (J.S.); (C.H.R.)
| | - Seok-ki Kim
- National Cancer Center, Department of Nuclear Medicine, Goyang-si 10408, Korea;
| | - Junsun Ryu
- National Cancer Center, Department of Otorhinolaryngology-Head and Neck Surgery, Goyang-si 10408, Korea; (J.S.); (C.H.R.)
- Correspondence: (J.R.); (Y.-S.J.); Tel.: +82-31-920-1684 (J.R.); +82-31-920-1685 (Y.-S.J.)
| | - Yuh-Seog Jung
- National Cancer Center, Department of Otorhinolaryngology-Head and Neck Surgery, Goyang-si 10408, Korea; (J.S.); (C.H.R.)
- Correspondence: (J.R.); (Y.-S.J.); Tel.: +82-31-920-1684 (J.R.); +82-31-920-1685 (Y.-S.J.)
| |
Collapse
|
10
|
Al-Dulimi Z, Wallis M, Tan DK, Maniruzzaman M, Nokhodchi A. 3D printing technology as innovative solutions for biomedical applications. Drug Discov Today 2020; 26:360-383. [PMID: 33212234 DOI: 10.1016/j.drudis.2020.11.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/13/2020] [Accepted: 11/11/2020] [Indexed: 12/30/2022]
Abstract
3D printing was once predicted to be the third industrial revolution. Today, the use of 3D printing is found across almost all industries. This article discusses the latest 3D printing applications in the biomedical industry.
Collapse
Affiliation(s)
- Zaisam Al-Dulimi
- Arundel Building, Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK
| | - Melissa Wallis
- Arundel Building, Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK
| | - Deck Khong Tan
- Arundel Building, Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK
| | - Mohammed Maniruzzaman
- Pharmaceutical Engineering and 3D Printing (PharmE3D) Lab, Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, PHR 4.214A, 2409 University Avenue, Stop A1920, Austin, TX 78712, USA.
| | - Ali Nokhodchi
- Arundel Building, Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK.
| |
Collapse
|
11
|
Chen Y, Qian C, Shen R, Wu D, Bian L, Qu H, Fan X, Liu Z, Li Y, Xia J. 3D Printing Technology Improves Medical Interns' Understanding of Anatomy of Gastrocolic Trunk. JOURNAL OF SURGICAL EDUCATION 2020; 77:1279-1284. [PMID: 32273250 DOI: 10.1016/j.jsurg.2020.02.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 02/25/2020] [Accepted: 02/29/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE Complex vascular anatomy has always been a difficult point for medical students. Gastrocolic trunk (Henle trunk) has many branches and variations, involving the venous reflux of the stomach, right colon, and pancreas. This study investigated the effects of 3 dimensional (3D) printing technology on medical interns' understanding of Henle trunk's variation, by comparing 2 dimensional (2D) images. SETTING Henle trunk modes were manufactured using 3D-CT angiography and 3D-printing technology. PARTICIPANTS Forty-seven interns from 2 medical schools (Nanjing Medical University and Medical College of Nantong University) participated in the study. DESIGN The interns were divided randomly allocated into 2 groups, where group 1 was the control group with a 2D image of Henle trunk plus surgical video (named 2D image group), and group 2 was the study group with a 3D printed model of Henle trunk plus surgical video (named 3D-printing group). Knowledge of interns on the Henle trunk was compared between 2 groups using a question test before and after the teaching intervention. RESULTS All interns had an improved overall assessment score as a result of attending the seminar, whether in the 2D image group or the 3D-printing group. The score of the 2D image group increased 32.57 ± 13.86, and the 3D-printing group increased 47.04 ± 12.99, showing significant difference (p = 0.001). There was no significant difference observed between postseminar scores between 2 medical schools (p = 0.975). There was a significant improvement in satisfaction among the 3D-printing group for education depth, novel and inspiring of teaching method, except for the interaction between teacher and interns (p = 0.215). Interns hope to have more teaching time for 3D printing, and not satisfied with the time of 3D printing teaching compared with those in the 2D image group (p = 0.021). CONCLUSIONS The 3-D printed Henle trunk model is a very effective teaching tool, which can help interns understand the anatomy of Henle trunk. The application of 3D printing technology in the teaching of interns of complex vascular anatomy is worth popularizing in teaching hospitals.
Collapse
Affiliation(s)
- Yigang Chen
- Department of General Surgery, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Jiangsu, PR China
| | - Chunxiang Qian
- Department of Education and Researching, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Jiangsu, PR China
| | - Ruizhi Shen
- Department of Oncology, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Jiangsu, PR China
| | - Danping Wu
- Department of Radiology, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Jiangsu, PR China
| | - Linjie Bian
- Department of Radiology, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Jiangsu, PR China
| | - Huiheng Qu
- Department of General Surgery, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Jiangsu, PR China
| | - Xinqi Fan
- Department of General Surgery, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Jiangsu, PR China
| | - Zhequn Liu
- Harbin JunYang Technology Co., Ltd., Harbin, PR China
| | - Yang Li
- Department of Education and Researching, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Jiangsu, PR China.
| | - Jiazeng Xia
- Department of General Surgery, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Jiangsu, PR China.
| |
Collapse
|
12
|
3D Printing-Based Pediatric Trainer for Ultrasound-Guided Peripheral Venous Access. IFMBE PROCEEDINGS 2020. [DOI: 10.1007/978-3-030-31635-8_87] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
13
|
Martinez-Marquez D, Jokymaityte M, Mirnajafizadeh A, Carty CP, Lloyd D, Stewart RA. Development of 18 Quality Control Gates for Additive Manufacturing of Error Free Patient-Specific Implants. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E3110. [PMID: 31554254 PMCID: PMC6803939 DOI: 10.3390/ma12193110] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/17/2019] [Accepted: 09/20/2019] [Indexed: 12/31/2022]
Abstract
Unlike subtractive manufacturing technologies, additive manufacturing (AM) can fabricate complex shapes from the macro to the micro scale, thereby allowing the design of patient-specific implants following a biomimetic approach for the reconstruction of complex bone configurations. Nevertheless, factors such as high design variability and changeable customer needs are re-shaping current medical standards and quality control strategies in this sector. Such factors necessitate the urgent formulation of comprehensive AM quality control procedures. To address this need, this study explored and reported on a variety of aspects related to the production and the quality control of additively manufactured patient-specific implants in three different AM companies. The research goal was to develop an integrated quality control procedure based on the synthesis and the adaptation of the best quality control practices with the three examined companies and/or reported in literature. The study resulted in the development of an integrated quality control procedure consisting of 18 distinct gates based on the best identified industry practices and reported literature such as the Food and Drug Administration (FDA) guideline for AM medical devices and American Society for Testing and Materials (ASTM) standards, to name a few. This integrated quality control procedure for patient-specific implants seeks to prepare the AM industry for the inevitable future tightening in related medical regulations. Moreover, this study revealed some critical success factors for companies developing additively manufactured patient-specific implants, including ongoing research and development (R&D) investment, investment in advanced technologies for controlling quality, and fostering a quality improvement organizational culture.
Collapse
Affiliation(s)
| | | | - Ali Mirnajafizadeh
- Molecular Cell Biomechanics Laboratory, University of California, Berkeley, CA 94720, USA.
| | - Christopher P Carty
- School of Allied Health Sciences and Gold Coast Orthopaedic Research and Education Alliance, Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia.
- Department of Orthopaedic Surgery, Queensland Children's Hospital, Children's Health Queensland Hospital and Health Service, Brisbane, QLD 4101, Australia.
| | - David Lloyd
- School of Allied Health Sciences and Gold Coast Orthopaedic Research and Education Alliance, Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia.
| | - Rodney A Stewart
- School of Engineering, Griffith University, Gold Coast, QLD 4222, Australia.
| |
Collapse
|
14
|
Spinelli D, Marconi S, Caruso R, Conti M, Benedetto F, De Beaufort HW, Auricchio F, Trimarchi S. 3D printing of aortic models as a teaching tool for improving understanding of aortic disease. THE JOURNAL OF CARDIOVASCULAR SURGERY 2019; 60:582-588. [PMID: 31256581 DOI: 10.23736/s0021-9509.19.10841-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND A geometrical understanding of the individual patient's disease morphology is crucial in aortic surgery. The aim of our study was to validate a questionnaire addressing understanding of aortic disease and use this questionnaire to investigate the value of 3D printing as a teaching tool for surgical trainees. METHODS Anonymized CT-angiography images of six different patients were selected as didactic cases of aortic disease and made into 3D models of transparent rigid resin with the Vat-photopolymerization technique. The 3D aortic models, which could be disassembled and reassembled, were displayed to 37 surgical trainees, immediately after a seminar on aortic disease. A questionnaire was developed to compare the trainees' understanding before (T0) and after (T1) demonstration of the 3D printed models. RESULTS A panel of 15 experts participated in evaluating face and content validity of the questionnaire. The questionnaire validity was established and therefore the information investigated by the questionnaire could be synthetized using the mean of the items to indicate the understanding. The participants (mean age 28 years, range 26-34, male 59%) showed a significant improvement in understanding from T0 (median=7.25; IQR=1.50) to T1 (median=8.00; IQR=1.50; P=0.002). CONCLUSIONS Preliminary data suggest that the use of 3D-printed aortic models as a teaching tool was feasible and improved the understanding of aortic disease among surgical trainees.
Collapse
Affiliation(s)
- Domenico Spinelli
- Thoracic Aortic Research Center, San Donato Polyclinic IRCCS, San Donato Milanese, Milan, Italy - .,Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy -
| | - Stefania Marconi
- Department of Civil Engineering and Architecture, University of Pavia, Pavia, Italy
| | - Rosario Caruso
- Health Professions Research and Development Area, San Donato Polyclinic IRCCS, San Donato Milanese, Milan, Italy
| | - Michele Conti
- Department of Civil Engineering and Architecture, University of Pavia, Pavia, Italy
| | - Filippo Benedetto
- Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy
| | - Hector W De Beaufort
- Thoracic Aortic Research Center, San Donato Polyclinic IRCCS, San Donato Milanese, Milan, Italy
| | - Ferdinando Auricchio
- Department of Civil Engineering and Architecture, University of Pavia, Pavia, Italy
| | - Santi Trimarchi
- Department of Clinical and Community Sciences, University of Milan, Milan, Italy.,Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| |
Collapse
|
15
|
The Role of 3D Printing in Medical Applications: A State of the Art. JOURNAL OF HEALTHCARE ENGINEERING 2019; 2019:5340616. [PMID: 31019667 PMCID: PMC6451800 DOI: 10.1155/2019/5340616] [Citation(s) in RCA: 206] [Impact Index Per Article: 41.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 02/26/2019] [Indexed: 02/07/2023]
Abstract
Three-dimensional (3D) printing refers to a number of manufacturing technologies that generate a physical model from digital information. Medical 3D printing was once an ambitious pipe dream. However, time and investment made it real. Nowadays, the 3D printing technology represents a big opportunity to help pharmaceutical and medical companies to create more specific drugs, enabling a rapid production of medical implants, and changing the way that doctors and surgeons plan procedures. Patient-specific 3D-printed anatomical models are becoming increasingly useful tools in today's practice of precision medicine and for personalized treatments. In the future, 3D-printed implantable organs will probably be available, reducing the waiting lists and increasing the number of lives saved. Additive manufacturing for healthcare is still very much a work in progress, but it is already applied in many different ways in medical field that, already reeling under immense pressure with regards to optimal performance and reduced costs, will stand to gain unprecedented benefits from this good-as-gold technology. The goal of this analysis is to demonstrate by a deep research of the 3D-printing applications in medical field the usefulness and drawbacks and how powerful technology it is.
Collapse
|
16
|
Magnesium Filled Polylactic Acid (PLA) Material for Filament Based 3D Printing. MATERIALS 2019; 12:ma12050719. [PMID: 30823676 PMCID: PMC6427143 DOI: 10.3390/ma12050719] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/22/2019] [Accepted: 02/25/2019] [Indexed: 11/30/2022]
Abstract
The main objective of this research is to prove the viability of obtaining magnesium (Mg) filled polylactic acid (PLA) biocomposites as filament feedstock for material extrusion-based additive manufacturing (AM). These materials can be used for medical applications, thus benefiting of all the advantages offered by AM technology in terms of design freedom and product customization. Filaments were produced from two PLA + magnesium + vitamin E (α-tocopherol) compositions and then used for manufacturing test samples and ACL (anterior cruciate ligament) screws on a low-cost 3D printer. Filaments and implant screws were characterized using SEM (scanning electron microscopy), FTIR (fourier transform infrared spectrometry), and DSC (differential scanning calorimetry) analysis. Although the filament manufacturing process could not ensure a uniform distribution of Mg particles within the PLA matrix, a good integration was noticed, probably due to the use of vitamin E as a precursor. The results also show that the composite biomaterials can ensure and maintain implant screws structural integrity during the additive manufacturing process.
Collapse
|
17
|
Jamróz W, Szafraniec J, Kurek M, Jachowicz R. 3D Printing in Pharmaceutical and Medical Applications - Recent Achievements and Challenges. Pharm Res 2018; 35:176. [PMID: 29998405 PMCID: PMC6061505 DOI: 10.1007/s11095-018-2454-x] [Citation(s) in RCA: 296] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 06/30/2018] [Indexed: 12/23/2022]
Abstract
Growing demand for customized pharmaceutics and medical devices makes the impact of additive manufacturing increased rapidly in recent years. The 3D printing has become one of the most revolutionary and powerful tool serving as a technology of precise manufacturing of individually developed dosage forms, tissue engineering and disease modeling. The current achievements include multifunctional drug delivery systems with accelerated release characteristic, adjustable and personalized dosage forms, implants and phantoms corresponding to specific patient anatomy as well as cell-based materials for regenerative medicine. This review summarizes the newest achievements and challenges of additive manufacturing in the field of pharmaceutical and biomedical research that have been published since 2015. Currently developed techniques of 3D printing are briefly described while comprehensive analysis of extrusion-based methods as the most intensively investigated is provided. The issue of printlets attributes, i.e. shape and size is described with regard to personalized dosage forms and medical devices manufacturing. The undeniable benefits of 3D printing are highlighted, however a critical view resulting from the limitations and challenges of the additive manufacturing is also included. The regulatory issue is pointed as well.
Collapse
Affiliation(s)
- Witold Jamróz
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Krakow, Poland
| | - Joanna Szafraniec
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Krakow, Poland
| | - Mateusz Kurek
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Krakow, Poland
| | - Renata Jachowicz
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Krakow, Poland.
| |
Collapse
|
18
|
CRESSWELL-BOYES A, BARBER A, MILLS D, TATLA A, DAVIS G. Approaches to 3D printing teeth from X-ray microtomography. J Microsc 2018; 272:207-212. [DOI: 10.1111/jmi.12725] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 05/25/2018] [Accepted: 05/30/2018] [Indexed: 11/29/2022]
Affiliation(s)
- A.J. CRESSWELL-BOYES
- Dental Physical Sciences, Institute of Dentistry, Francis Bancroft Building; Queen Mary University of London; London E1 4NS U.K
| | - A.H. BARBER
- School of Engineering; London South Bank University; London SE1 0AA U.K
| | - D. MILLS
- Dental Physical Sciences, Institute of Dentistry, Francis Bancroft Building; Queen Mary University of London; London E1 4NS U.K
| | - A. TATLA
- GlaxoSmithKline; St George's Avenue; Weybridge KT13 0DE U.K
| | - G.R. DAVIS
- Dental Physical Sciences, Institute of Dentistry, Francis Bancroft Building; Queen Mary University of London; London E1 4NS U.K
| |
Collapse
|
19
|
Rethy A, Sæternes JO, Halgunset J, Mårvik R, Hofstad EF, Sánchez-Margallo JA, Langø T. Anthropomorphic liver phantom with flow for multimodal image-guided liver therapy research and training. Int J Comput Assist Radiol Surg 2017; 13:61-72. [PMID: 28929364 PMCID: PMC5754383 DOI: 10.1007/s11548-017-1669-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 09/11/2017] [Indexed: 11/11/2022]
Abstract
Purpose The objective of this study was to develop a multimodal, permanent liver phantom displaying functional vasculature and common pathologies, for teaching, training and equipment development in laparoscopic ultrasound and navigation. Methods Molten wax was injected simultaneously into the portal and hepatic veins of a human liver. Upon solidification of the wax, the surrounding liver tissue was dissolved, leaving a cast of the vessels. A connection was established between the two vascular trees by manually manipulating the wax. The cast was placed, along with different multimodal tumor models, in a liver shaped mold, which was subsequently filled with a polymer. After curing, the wax was melted and flushed out of the model, thereby establishing a system of interconnected channels, replicating the major vasculature of the original liver. Thus, a liquid can be circulated through the model in a way that closely mimics the natural blood flow. Results Both the tumor models, i.e., the metastatic tumors, hepatocellular carcinoma and benign cyst, and the vessels inside the liver model, were clearly visualized by all the three imaging modalities: CT, MR and ultrasound. Doppler ultrasound images of the vessels proved the blood flow functionality of the phantom. Conclusion By a two-step casting procedure, we produced a multimodal liver phantom, with open vascular channels, and tumor models, that is the next best thing to practicing imaging and guidance procedures in animals or humans. The technique is in principle applicable to any organ of the body.
Collapse
Affiliation(s)
- Anna Rethy
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.,Norwegian National Advisory Unit on Ultrasound and Image-Guided Therapy, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Jørn Ove Sæternes
- Department of Laboratory Medicine, Children's and Women's Health, NTNU, Trondheim, Norway
| | - Jostein Halgunset
- Department of Laboratory Medicine, Children's and Women's Health, NTNU, Trondheim, Norway
| | - Ronald Mårvik
- Norwegian National Advisory Unit on Ultrasound and Image-Guided Therapy, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway.,Department of Gastrointestinal Surgery, St. Olavs Hospital, Trondheim, Norway
| | - Erlend F Hofstad
- Norwegian National Advisory Unit on Ultrasound and Image-Guided Therapy, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway.,Department of Medical Technology, SINTEF, 7465, Trondheim, Norway
| | - Juan A Sánchez-Margallo
- Department of Medical Technology, SINTEF, 7465, Trondheim, Norway.,Department of Computer Systems and Telematics Engineering, University of Extremadura, Badajoz, Spain
| | - Thomas Langø
- Norwegian National Advisory Unit on Ultrasound and Image-Guided Therapy, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway. .,Department of Medical Technology, SINTEF, 7465, Trondheim, Norway.
| |
Collapse
|
20
|
Witowski JS, Coles-Black J, Zuzak TZ, Pędziwiatr M, Chuen J, Major P, Budzyński A. 3D Printing in Liver Surgery: A Systematic Review. Telemed J E Health 2017; 23:943-947. [PMID: 28530492 DOI: 10.1089/tmj.2017.0049] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Rapid growth of three-dimensional (3D) printing in recent years has led to new applications of this technology across all medical fields. This review article presents a broad range of examples on how 3D printing is facilitating liver surgery, including models for preoperative planning, education, and simulation. MATERIALS AND METHODS We have performed an extensive search of the medical databases Ovid/MEDLINE and PubMed/EMBASE and screened articles fitting the scope of review, following previously established exclusion criteria. Articles deemed suitable were analyzed and data on the 3D-printed models-including both technical properties and desirable application-and their impact on clinical proceedings were extracted. RESULTS Fourteen articles, presenting unique utilizations of 3D models, were found suitable for data analysis. A great majority of articles (93%) discussed models used for preoperative planning and intraoperative guidance. PolyJet was the most common (43%) and, at the same time, most expensive 3D printing technology used in the development process. Many authors of reviewed articles reported that models were accurate (71%) and allowed them to understand patient's complex anatomy and its spatial relationships. CONCLUSIONS Although the technology is still in its early stages, presented models are considered useful in preoperative planning and patient and student education. There are multiple factors limiting the use of 3D printing in everyday healthcare, the most important being high costs and the time-consuming process of development. Promising early results need to be verified in larger randomized trials, which will provide more statistically significant results.
Collapse
Affiliation(s)
- Jan Sylwester Witowski
- 1 2nd Department of General Surgery, Faculty of Medicine, Jagiellonian University Medical College , Kraków, Poland
| | - Jasamine Coles-Black
- 2 Department of Vascular Surgery, Austin Health , Heidelberg, Melbourne, Australia
| | | | - Michał Pędziwiatr
- 1 2nd Department of General Surgery, Faculty of Medicine, Jagiellonian University Medical College , Kraków, Poland
| | - Jason Chuen
- 2 Department of Vascular Surgery, Austin Health , Heidelberg, Melbourne, Australia
| | - Piotr Major
- 1 2nd Department of General Surgery, Faculty of Medicine, Jagiellonian University Medical College , Kraków, Poland
| | - Andrzej Budzyński
- 1 2nd Department of General Surgery, Faculty of Medicine, Jagiellonian University Medical College , Kraków, Poland
| |
Collapse
|
21
|
Cost-effective, personalized, 3D-printed liver model for preoperative planning before laparoscopic liver hemihepatectomy for colorectal cancer metastases. Int J Comput Assist Radiol Surg 2017; 12:2047-2054. [PMID: 28144830 PMCID: PMC5702382 DOI: 10.1007/s11548-017-1527-3] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 01/16/2017] [Indexed: 02/07/2023]
Abstract
Purpose Three-dimensional (3D) printing for preoperative planning has been intensively developed in the recent years. However, the implementation of these solutions in hospitals is still difficult due to high costs, extremely expensive industrial-grade printers, and software that is difficult to obtain and learn along with a lack of a defined process. This paper presents a cost-effective technique of preparing 3D-printed liver models that preserves the shape and all of the structures, including the vessels and the tumor, which in the present case is colorectal liver metastasis. Methods The patient’s computed tomography scans were used for the separation and visualization of virtual 3D anatomical structures. Those elements were transformed into stereolithographic files and subsequently printed on a desktop 3D printer. The multipart structure was assembled and filled with silicone. The patient underwent subsequent laparoscopic right hemihepatectomy. The entire process is described step-by-step, and only free-to-use and mostly open-source software was used. Results As a result, a transparent, full-sized liver model with visible vessels and colorectal metastasis was created for under $150, which—taking into account 3D printer prices—is much cheaper than models presented in previous research papers. Conclusions The increased accessibility of 3D models for physicians before complex laparoscopic surgical procedures such as hepatic resections could lead to beneficial breakthroughs in these sophisticated surgeries, as many reports show that these models reduce operative time and improve short term outcomes.
Collapse
|
22
|
Physical and virtual modelling of the head and neck for surgical simulation and training. Curr Opin Otolaryngol Head Neck Surg 2016; 24:463-468. [DOI: 10.1097/moo.0000000000000303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|