An Integrated Design and Fabrication Approach for Heterogeneous Objects

A novel method for the design and fabrication of heterogeneous objects is presented, which combines the Three Dimensional Printing (3DP) and micro droplets dispensing technology. It provides a solution to the fabrication of assemblies with multi materials, which can not be fabricated by traditional processes. An integrated design and fabrication system for heterogeneous objects based on the new process is introduced. Its constructive representation scheme is described. To show the effectiveness of the working process of multi-materials, based on slice software of color STL model and developing prototyping system, an example is shown to illustrate the entire design-fabrication cycle for heterogeneous objects.

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Frontal sinus models and onlay templates in osteoplastic flap surgery

The Journal of Laryngology & Otology ◽

10.1017/s0022215110001799 ◽

2010 ◽

Vol 125 (1) ◽

pp. 82-85 ◽

Cited By ~ 12

Author(s):

M Daniel ◽

J Watson ◽

E Hoskison ◽

A Sama

Keyword(s):

Frontal Sinus ◽

Three Dimensional ◽

Image Data ◽

Sinus Surgery ◽

Three Dimensional Printing ◽

Frontal Sinus Surgery ◽

Tomography Image ◽

Novel Method ◽

Computed Tomography Image ◽

Dimensional Printing

AbstractObjective:Precise delineation of the extent of frontal sinus pneumatisation is a crucial step in osteoplastic flap frontal sinus surgery. The authors present a novel method of achieving this objective.Methods:First, models of the frontal area are generated using three-dimensional printing based on pre-operative computed tomography image data. These models are then used to create an onlay template of the frontal sinus, which is used intra-operatively.Results:In a series of 10 patients undergoing osteoplastic flap frontal sinus surgery, the described frontal sinus templates were consistently accurate to within 1 mm.Conclusion:Frontal sinus templates are potentially useful adjuncts to current techniques employed to guide frontal sinus surgery.

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A novel method for intratracheal injection of infectious agents into mice

Laboratory Animals ◽

10.1177/0023677216684422 ◽

2016 ◽

Vol 51 (5) ◽

pp. 530-533 ◽

Cited By ~ 3

Author(s):

Yong Cheng ◽

Lucas D Liepert ◽

Justin Waller ◽

W Matthew Leevy ◽

Jeff S Schorey

Keyword(s):

Animal Studies ◽

Three Dimensional ◽

Small Animal ◽

Collateral Damage ◽

Infectious Agents ◽

Three Dimensional Printing ◽

Novel Method ◽

Dimensional Printing ◽

Human Injury ◽

Intratracheal Injection

Intratracheal injection is a traditional technique used in small animal studies of highly contagious airborne pathogens such as Mycobacterium tuberculosis. However, current techniques of intratracheal injection generally involve procedures that pose a risk of incident injury and infection for researchers, and may also cause collateral damage to experimental animals during the installation process. Here we describe an intratracheal injection method that was enabled by a three dimensional printing of a custom platform. This updated technique improved the overall ergonomics of intratracheal injection in mice, minimizing the risk of human injury and implementing the 3R (replacement, reduction and refinement) principle in mouse infection studies.

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Comparison of Silver Sources for Silver/Glass Compounds by Multi-Material 3D-Printing

Additional Conferences (Device Packaging HiTEC HiTEN & CICMT) ◽

10.4071/cicmt-tha31 ◽

2015 ◽

Vol 2015 (CICMT) ◽

pp. 000305-000313

Author(s):

D. Polsakiewicz ◽

W. Kollenberg

Keyword(s):

Microstructure Evolution ◽

Nitrate Solution ◽

Three Dimensional ◽

Silver Nitrate Solution ◽

Metal Compounds ◽

Three Dimensional Printing ◽

Novel Method ◽

Novel Applications ◽

Further Development ◽

Dimensional Printing

Inkjet printing of conductive silver lines on solid or flexible substrates for the fabrication of electronic components has been reported in a variety of ways over more than the last decade. Numerous publications highlight the importance of the silver source for the feasibility of the process as well as the resulting properties of the printed structures. In previous work [1] we reported the first experimental attempt to realize such conductive silver components inside a structure printed with a custom three dimensional powder printer. Aim of this study was to combine the functionality of directly printed functional elements with the geometrical flexibility of powder-based three-dimensional printing. While functionality in the printed glass/metallic compound is achieved in principle, an inhomogeneous microstructure with differentiated silver and glass areas is observed. In this article the silver source for the printing process is varied in order to achieve a homogeneous compound in desired areas. Three different metallic sources were used, namely a diluted screen-printing paste, a silver nitrate solution and silver particles formed by a previously reported polyol process. Ink were formulated from mentioned silver sources and printed with a glass powder. The fabricated samples are investigated in terms of their microstructure evolution and part functionality. The microstructure evolution is discussed in regard to the selected silver source. Additionally, the thermal treatment of the structures is optimized in order to ensure the optimum microstructure and part functionality. The reported experiments present the further development for a unique and novel method for fabricating glass/metal compounds by powder-based three-dimensional printing, allowing for the expansion of the process into novel applications.

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A novel fast disintegrating tablet fabricated by three‐dimensional printing

Drug Development and Industrial Pharmacy ◽

10.1080/03639040903059359 ◽

2009 ◽

Vol 00 (00) ◽

pp. 090730035508060-7

Author(s):

Deng-Guang Yu ◽

Chris Branford-White ◽

Yi-Cheng Yang ◽

Li-Min Zhu ◽

Edward William Welbeck ◽

...

Keyword(s):

Three Dimensional ◽

Three Dimensional Printing ◽

Fast Disintegrating Tablet ◽

Dimensional Printing

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Faculty Opinions recommendation of Development and initial porcine and cadaver experience with three-dimensional printing of endoscopic and laparoscopic equipment.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.718475764.793516604 ◽

2016 ◽

Author(s):

Mitchell Humphreys

Keyword(s):

Three Dimensional ◽

Three Dimensional Printing ◽

Laparoscopic Equipment ◽

Dimensional Printing

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Central ossifying fibroma of mandible

BMJ Case Reports ◽

10.1136/bcr-2020-239286 ◽

2020 ◽

Vol 13 (12) ◽

pp. e239286

Author(s):

Kumar Nilesh ◽

Prashant Punde ◽

Nitin Shivajirao Patil ◽

Amol Gautam

Keyword(s):

Fibrous Tissue ◽

Three Dimensional ◽

Facial Asymmetry ◽

Ossifying Fibroma ◽

Mandible Reconstruction ◽

Three Dimensional Printing ◽

Osseous Lesion ◽

Large Size ◽

Dimensional Printing

Ossifying fibroma (OF) is a rare, benign, fibro-osseous lesion of the jawbone characterised by replacement of the normal bone with fibrous tissue. The fibrous tissue shows varying amount of calcified structures resembling bone and/or cementum. The central variant of OF is rare, and shows predilection for mandible among the jawbone. Although it is classified as fibro-osseous lesion, it clinically behaves as a benign tumour and can grow to large size, causing bony swelling and facial asymmetry. This paper reports a case of large central OF of mandible in a 40-year-old male patient. The lesion was treated by segmental resection of mandible. Reconstruction of the surgical defect was done using avascular fibula bone graft. Role of three-dimensional printing of jaw and its benefits in surgical planning and reconstruction are also highlighted.

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