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Found 14 results

  1. Version 1.0.0


    brain artery - stl file processed Have embodi3D 3D print this model for you. This file was created with democratiz3D. Automatically create 3D printable models from CT scans. head, skull, .stl, printable, frontal, temporal, parietal, occipital, 3d, model, orbit, nasal, vomer, septum, zygomatic, arch, molar, premolar, teeth, tooth, jaw, angle, body, mastoid, process, conduct, auditory, yugular, atlas, axis, vascular,


  2. Version 1.0.0


    This is a preoperative model of thoraco-abdominal aneurysm, Crawford typle I, with rupture above the diaphragm. The subsequent haemorrhagia in the mediastinum closed temporary the rupture, probably saving the life of the patient. This was an impossible operation, which took 7 hours and the team of the best cardio-thoracic surgeons in Bulgaria. I don't know how, but the patient is still alive and kicking. It took me 3 days to make the model and to turn it into a 3d visualization and I'll share my workflow with you. I'm printing the model right now for a cardio-thoracic surgery symposium. The source is Angio CT scan with 1,3 mm slide thickness. 1. I analysed the model in Radiant Dicom viewer (you can activate trial license for unlimited amount of times, if you can't afford 100 euro for it). I selected the best series and exported them in a folder. 2. I loaded the model in 3D Slicer. First, I run two denoising algoritms (Gradient Anisotropic Diffusion and Curvature Anisotropic Diffusion), which improved the quality of the images significantly. Then I selected a ROI, which included the whole aorta. With the Segment Editor Module I segmented the lumen of the aorta. Then, as a separate segmentation, I used the Margin operation to grow the lumen with 2 centimeters and applied a boolean operation, resulting in a hollow shell with precise lumen. I had to segment the rest of the aortic wall manually. I exported the result as STL file. 3. In Meshmixer, I modeled the whole thing, until I was satisfied by the result. 4. My client asked me to remove the aortic arch (it's such a pain, I love aortic arches) and to print the aneurysmal sac with the abdominal aorta and the bifurcation of the iliac arteries. Note the double renal artery. I divided the model into two parts and installed ports for two 8x2mm and two 5x2 mm neodymium magnets with tolerance of 0,250mm. The final preprint version is on picture 3. 5. I'm printing this model with 1,5mm slide thickness, 4 perimeters, 15% gyroid infill, custom support with support enforcers, using red Natural PLA from a local manufacturer. The whole printing will take 45 hours.


  3. Version 1.0.0

    1 download

    PRUEBA, mediastinum, vascular, .stl, printable, bone, chest, thorax, lung, pulmonary, trunk, bronchi, cava, vein, septum, auricle, coronary, ventriles, muscles, sternum, ribs, dorsal, spine, ct, scan, with, contrast, 3d, model, aorta, descendent


  4. Version 1.0.0


    PRUEBA - stl file processed Have embodi3D 3D print this model for you. This file was created with democratiz3D. Automatically create 3D printable models from CT scans. heart, ventricle, vessels, auricle, coronary, chest, bronchi, dorsal, spine, lung, pulmonary, trunk, bone, transverse, spinous, process, apophysis, aorta, descendent, vascular,


  5. Version 1.0.0


    aorta1111 - stl file processed Have embodi3D 3D print this model for you. This file was created with democratiz3D. Automatically create 3D printable models from CT scans. ribs, lumbar, spine, body, dorsal, sacrum, coccyx, foramen, vascular, aorta, descendent, iliac, common, kidney, splenic, artery, celiac, trunk, mesenteric, superior, inferior, femoral, external, hip, head, femur, neck, neck, pelvis, pubis, ischium, ramus, sacroiliac, joint, intervertebral, disc,


  6. Version 1.0.0

    1 download

    Aortic arch with visible left and right carotid artery branching from a single trunk (Bicarotid Trunk) and a right aberrant subclavian artery also known as arteria Lusoria. You can see it here: https://sketchfab.com/3d-models/aortic-arch-with-arteria-lusoria-0070ed336d4f424fbb258536d4ee4bb6 Thyrocervical trunk, Common carotid artery, Vertebral artery, Subclavian artery, Brachiocephalic trunk, Aortic arch, Ascending aorta, Descending aorta, Aortic bulb, 3d, model, .stl, printable,


  7. Version 1.0.0

    1 download

    Cava vein stenting - stl file processed Have embodi3D 3D print this model for you. Learn More. This file was created with democratiz3D. Automatically create 3D printable models from CT scans. Learn more. vascular, bone, 3d, model, .stl, thorax, chest, clavicle, scapula, ribs, shoulder, upper, limb, humerus, head, neck, dorsal, spine, body, spinous, transverse, cava, vein, superior, stent, printable, printing, medical,


  8. Version 1.0.0


    Stent placed into the superior cava vein trapping pacemaker leads, ct, scan, with, contrast, .stl, 3d, printable, axial, dicom, chest, thorax, scapula, clavicle, ribs, humerus, shoulder, neck, aortic, arch, ascendent, descendent, vein, cava, superior, stent, pacemaker, ventricle, auricle, heart, pulmonary, trunk, lung, thyroid, gland, diaphragm, spleen, liver, portal, vessels, trachea, esophagus, dorsal, spine, transverse, spinous, apophysis, sternum, cartilage, vascular, cta


  9. Version 1.0.0


    AAA1 - stl file processed Have embodi3D 3D print this model for you. Learn More. This file was created with democratiz3D. Automatically create 3D printable models from CT scans. Learn more. ribs, sternum, thorax, .stl, lumbar, spine, 3d, model, bone, transverse, spinous, apophysis, aortic, descending, aneurysm, infrarenal, iliac, common, iliac, right, left, sacrum, sacroiliac, joint, sacral, foramina, vascular, aorta, printable, descending,


  10. Version 1.0.0


    11234, ct, scan, high-resolution ct, thorax, chest, calcifications vascular, aorta, aortosclerosis, pulmonary, Interstitial Pneumonia, pulmonary, trunk, nodules, ground glass opacities, interstitial pneumonia, posterior, lobules, mediastinum, dorsal, spine, ribs, scapula,


  11. [Tonmai]


    Version 1.0.0


    test, ct, scan, without, contrast, axial, dicom, .stl, thorax, abdomen, calcifications, vascular, bronchi, lung, sternum, bone, scapula, clavicle, serratus, pectoral, deltoid, carotid, subclavia, trachea, esophagus, ribs, dorsal, lumbar, spine, transverse, spinous, process, pulmonary, trunk, aorta, arch, free, fluid, perihepatic, perisplenic, hepatomegaly, subcapsular, hematoma, semilunar, stomach, pneumediastinum, heart, great, vessels, ascending, descending


  12. Version 1.0.0


    Heart Research Harry - stl file processed aorta, great, vessels, mediastinum, vascular, 3dmodel, stl


  13. Following the current interest and significant recent advances in three-dimensional printing, the field of tissue engineering is increasingly seeking to adapt this technology for the fabrication of biological tissues, and potentially entire organs, for clinical transplantation. Despite significant demand for vascular grafts for clinical procedures such as coronary bypass surgery, the manufacture of synthetic blood vessels has proved to be problematic. Due to a tendency to cause thrombosis and a lack of growth potential, failure is not uncommon for conduits produced from conventional materials, especially in smaller diameter vessels. As a result, there is great interest in the development of a tissue engineered alternative, and three-dimensional bio-printing may hold the solution. Freeform droplet-based laser bio-printing is an orifice-free printing approach which has been used to generate straight and branched cellular tubes, the fundamental component of engineered blood vessels. As droplet-based laser printing does not require a nozzle, it is particularly well suited to handling the viscous bio-inks often required for tissue engineering purposes without the risk of clogging. By utilising an alginate hydrogel bio-ink capable of carrying a population of living cells, researchers from the University of Florida and Tulane University have printed straight and bifurcated (Y-shaped) tubular structures, demonstrating the promise of 3D-printing technologies for vascular tissue engineering applications. The generation of branched structures is of particular value as these are a fundamental component of native vasculature. Layer-by-layer deposition of droplets of either an 8% alginate solution or a 2% alginate-fibroblast cell suspension was printed following a predesigned pattern. A Z-platform was used to lower each deposited layer, step-wise, into a CaCl2 crosslinking solution to induce gelation of the printed alginate, with each step being the same depth as the height of the previous layer of un-gelled alginate. Initially, acellular straight-line tubes were printed to similar dimensions as human blood vessels, 170 individual layers built over 30 minutes to a height of 5.1mm, to form a tube with an internal diameter of 5mm. Subsequently, 5mm long, 45° Y-shaped tubes were produced, utilising the buoyancy provided by the calcium chloride crosslinking solution to support the formation of overhanging and spanning structures, and taking around two hours to complete. With the printing conditions thus optimised the team then introduced cellular bio-ink into the printing process and reproduced both straight and Y-shaped constructs with an incorporated live cell population. Loading the alginate solutions with cells appeared to disrupt droplet formation to an extent, leading to an increase in the minimum thickness of the vessel walls that could be produced, but the cell viability was considered to be acceptable for a printed bio-ink, and cell numbers were shown to increase over a 24 hour incubation, suggesting that the cells were healthy and proliferative following the bio-printing process. As well as successfully demonstrating the potential of droplet-based laser bio-printing for the tissue engineering of blood vessels and similar tubular structures, this work represents the first example of an overhang being incorporated into a cellular bio-printed construct. Although further development and eventual clinical testing will ultimately be required to determine the suitability of these three dimensional printed blood vessels for therapeutic use, this success brings us a step closer to the use of viable 3D-printed constructs in life-saving vascular graft surgery. Image Credits: http://cellimagelibrary.tumblr.com Biofabrication
  14. From the album: Blog images

    3D printed model of the heart of a patient with transposition of the great arteries, status post Mustard repair. Model was printed with a PolyJet printer. See International Journal of Cardiology

    © 2014 International Journal of Cardiology

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