3D-Printed Objects for Multipurpose Applications

Hossain, Nayem; Chowdhury, Mohammad Asaduzzaman; Shuvho, Md. Bengir Ahmed; Kashem, Mohammod Abul; Kchaou, Mohamed

doi:10.1007/s11665-021-05664-w

Cited by 26 publications

(13 citation statements)

References 96 publications

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“…3D-printing is a representative technology of additive manufacturing, which is one of the most important medical enabling technologies. Since 3D-printing allows us to fabricate all complicated device with least material, it was named as a “novel industrial revolution”[ 25 ]. Clinicians can transfer digital information of imaging examinations to computer-assisted design software, and further fabricate the model via a 3D-printier according to the designed STL documents.…”

Section: Discussionmentioning

confidence: 99%

Prenatal diagnosis of isolated lateral facial cleft by ultrasonography and three-dimensional printing: A case report

Song¹,

Ma²,

Ye³

et al. 2021

WJCC

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BACKGROUND Lateral facial clefts are atypical with a low incidence in the facial cleft spectrum. With the development of ultrasonography (US) prenatal screening, such facial malformations can be detected and diagnosed prenatally rather than at birth. Although three-dimensional US (3DUS) can render the fetus' face via 3D reconstruction, the 3D images are displayed on two-dimensional screens without field depth, which impedes the understanding of untrained individuals. In contrast, a 3D-printed model of the fetus' face helps both parents and doctors develop a more comprehensive understanding of the facial malformation by creating more interactive aspects. Herein, we present an isolated lateral facial cleft case that was diagnosed via US combined with a 3D-printed model. CASE SUMMARY A 31-year-old G2P1 patient presented for routine prenatal screening at the 22 nd wk of gestation. The coronal nostril-lip section of two-dimensional US (2DUS) demonstrated that the fetus' bilateral oral commissures were asymmetrical, and left oral commissure was abnormally wide. The left oblique-coronal section showed a cleft at the left oral commissure which extended to the left cheek. The results of 3DUS confirmed the cleft. Furthermore, we created a model of the fetal face using 3D printing technology, which clearly presented facial malformations. The fetus was diagnosed with a left lateral facial cleft, which was categorized as a No. 7 facial cleft according to the Tessier facial cleft classification. The parents terminated the pregnancy at the 24 th wk of gestation after parental counseling. CONCLUSION In the diagnostic course of the current case, in addition to the traditional application of 2D and 3DUS, we created a 3D-printed model of the fetus, which enhanced diagnostic evidence, benefited the education of junior doctors, improved parental counseling, and had the potential to guide surgical planning.

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Section: Discussionmentioning

confidence: 99%

Prenatal diagnosis of isolated lateral facial cleft by ultrasonography and three-dimensional printing: A case report

Song¹,

Ma²,

Ye³

et al. 2021

WJCC

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“…Direct ink writing (DIW), which was firstly proposed by Cesarano et al in 1998 [1] and was patented in 2000 [2], is an extrusion-based additive manufacturing (AM) technique by depositing slurry or paste type materials named inks onto the substrate layer by layer [3]. Compared with other AM techniques, DIW has advantages in materials flexibility, low cost and reliability [4].…”

Section: Introductionmentioning

confidence: 99%

Modeling and evaluation of freeform extruded filament based on numerical simulation method for direct ink writing

Hassan

Arrieta‐Escobar

et al. 2022

Int J Adv Manuf Technol

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Direct ink writing (DIW) is an extrusion-based additive manufacturing (AM) technique. One of the required factors for printing quality in DIW is to extrude continuous and tubular freeform extruded filaments (FEF) with diameters close to the nozzle inner diameter. This paper established a simulation model of FEF with volume of fluid (VOF) method and then evaluated the FEF based on the simulation results. First, ink properties including density, surface tension coefficient and rheological properties were determined by properties tests. Then, the model of FEF was established using VOF simulation method with the software OpenFOAM and two evaluation indicators, mean diameter and stability, were proposed to evaluate the FEF. Two inks, a cellulose ink and a Nivea Crème, were used under three levels of piston velocity to verify the method universality for different inks and variable process parameters. The prediction accuracy of the established simulation model was verified as the relative error between simulation and experimental results of diameter was less than 10.22%. In this work, it was found that: (1) piston velocity needed to be set higher than a minimum value to overcome yield stress and surface tension to successfully extrude filaments; (2) mean diameter of FEF decreased while stability of FEF decreased firstly and then increased as piston velocity increased. The proposed model and evaluation indicators gave an accurate and effective framework to analyze effect of the piston velocity on FEF, characterize the ink printability and find suitable printable windows for process parameters in DIW.

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“…Complicated architectures of various tissues such as the liver (Liu et al, 2021; Yang et al, 2021), heart (Ma et al, 2014), blood vessels (Peng et al, 2021; Zhou et al, 2020), and tumors have been fabricated (Huang et al, 2014). 3D printing holds the advantage of building spatial structures mimicking the living environment of cells in vivo (Hossain et al, 2021). The uterus is the carrier of embryonic development in the body, and the patients whose uterus cannot conceive account for 38% of infertility symptoms (Zegers‐Hochschild et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

3D printed controllable microporous scaffolds support embryonic development in vitro

Guo

Gao

et al. 2022

Journal Cellular Physiology

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Little is known about the complex molecular and cellular events occurring during implantation, which represents a critical step for pregnancy. The conventional 2D culture could not support postimplantation embryos' normal development, and 3D conditions shed light into the “black box”. 3D printing technology has been widely used in recapitulating the structure and function of native tissues in vitro. Here, we 3D printed anisotropic microporous scaffolds to culture embryos by manipulating the advancing angle between printed layers, which affected embryo development. The 30° and 60° scaffolds promote embryo development with moderate embryo‐scaffold attachments. T‐positive cells and FOXA2‐positive cells were observed to appear in the posterior region of the embryo and migrated to the anterior region of the embryo on day 7. These findings demonstrate a 3D printed stand that supports embryonic development in vitro and the critical role of 3D architecture for embryo implantation, in which additive manufacturing is a versatile tool.

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3D-Printed Objects for Multipurpose Applications

Cited by 26 publications

References 96 publications

Prenatal diagnosis of isolated lateral facial cleft by ultrasonography and three-dimensional printing: A case report

Prenatal diagnosis of isolated lateral facial cleft by ultrasonography and three-dimensional printing: A case report

Modeling and evaluation of freeform extruded filament based on numerical simulation method for direct ink writing

3D printed controllable microporous scaffolds support embryonic development in vitro

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