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Showing content with the highest reputation since 09/18/2019 in all areas

  1. 2 points

    Version 1.0.0

    0 downloads

    The skull from Full head HD set Prepared for 3D printing. Made from 0,7mm CT scan of a caucasian female in her 20-s. 5 parts model 14 5x2mm and 12 8x2mm neodymium magnets Printed on Prusa MK3Swith 3D Jake ecoPLA Glitter Silver1,5mm layer thickness4 perimeters, 30% gyroid infill Support on build plate only, 200C extrusion temperature (except the first layer, which is 210C)60 hours print, ~600g filament 80% of the anatomy curriculum.

    $60.00

  2. 2 points
    valchanov

    Medical 3D printing 101

    Single versus multiple segmentation - Back and forth technique There are many challenging cases, in which the single segmentation is not enough. The paranasal sinuses and the congenital heart defects are notable examples. My usual workflow was to segment whatever I can as good as it's possible, to clean the unnecessary structures and the artefacts, to export the segmentation as stl 3d model and then to "CAD my way around". This is solid philosophy for simple, uncomplicated models, but for complex structures with a lot of small details and requirement from the client for the highest quality possible, this is just not good enough, especially for a professional anatomist like myself. Then I started to exploit the simple fact, that you're actually able to export the model as stl, to model it with your CAD software and then to reimport it back and convert it into label map again. I called this "back and forth technique". You can model the finest details on your model and then you can continue the segmentation right where you need it, catching even the slightest details of the morphology of the targeted structure. This technique, combined with my expertise, gives me the ability to produce the best possible details on some of the most challenging cases, including nasal cavity, heart valves, brain models etc. etc. To use this technique, just import the stl file, convert it into a label map (for 3D slicer - segmentation module/ export/import models and label maps). The main advantages of this technique are: 1. You can combine the segmentation with the most advanced CAD functions of your favorite software. Two highly specialized programs are better than one "Jack of all trades" (cough cough Mimics cough cough) 2. Advanced artefact removing. 3. Advanced small detail segmentation and modelling. 4. Combined with several markers (separate segmentations, several voxels in size) on the nearby anthropometric points, this technique increases the accuracy of the final product significantly. Without points of origin, the geometry of your model will go to hell, if you're not especially careful (yes, I'm talking about the 3D brushes in Slicer). 5. You can easily compare the label map with the 3d model, converted back. Every deviation, produced during the CAD operations will be visible like a big, shining dot, which you can easily see and correct. This is one of the strongest quality control techniques. 6. You can create advanced masks with all the geometrical forms you can possibly imagine, which you can use for advanced detail segmentation. Those masks will be linked with the spatial coordinates of the targeted structures - the stl file preserves the exact coordinates of every voxel, which was segmented. 7. You can go back and forth multiple times, as many as you like. 8. This technique is more powerful than the best AI, developed by now. It combines the best from the digital technologies with the prowess of the human visual cortex (the best video card up to date). The main disadvantages are: 1. It's time consuming. 2. It produces A LOT of junk files. 3. Advanced expertise is needed for this technique. This is not some "prank modelling", but an actual morphological work. A specialized education and practical experience in the human anatomy, pathology and radiology will give you the best results, which this technique can offer. 4. You need highly developed visual cortex for this technique (dominant visual sense). This technique is not for the linguistic, spatial-motor, olphactory etc. types of brains. Recent studies confirms, that a part of the population have genetically determined bigger, more advanced visual cortex (The human connectome project, Prof. David Van Essen, Washington University in Saint Louis). Such individuals become really successful cinematographers, designers, photographers and medical imaging specialists. The same is true for all the other senses, but right now we're talking about visual modality and 3D intellect (I'm sorry, dear linguists, musicians, craftsmen and tasters). It's not a coincidence that I have so many visual artists in my family (which makes me the medical black sheep). But if you don't have this kind of brain, you can still use the technique for quality control and precise mask generation. Just let the treshould module or the AI to do the job for you in the coordinates, in which you want (You should really start using the Segment Editor module in Slicer 3D). 5. You really need to love your work, if you're using this technique. For the usual 3D modelling you don't need so many details in your model and to "CAD your way around" is enough for the task. 6. You should use only stl files. For some reason, the obj format can't preserve the spatial geometry as good as the stl format. Maybe because the stl is just a simple map of vertex coordinates and the obj contains much more sophisticated data. The simple, the better. On the picture - comparison of the semilunar valves, made by treshould segmentation at 250-450 Hounsfield units (in green) and modelled and reimported model (in red).
  3. 1 point

    Version 1.0.0

    2 downloads

    trial - 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. upper, teeth, tooth, incisor, molar, premolar, canine, dental, dentistry, bone, .stl, 3d, model, hard, spine, maxillofacial, printable,

    Free

  4. 1 point
    Dr. Mike

    Full size Thorax 3D print

    A quarter is shown at the bottom for scale.
  5. 1 point
    Dr. Mike

    Temporal Bone Left

    Here is an article on the benefits of using 3D printed temporal bones for surgical training https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6703115/
  6. 1 point
    valchanov

    Medical 3D printing 101

    This topic is for medical 3d printing tips and tricks for the newbies. I'm starting with the bones, you can add whatever you can share. Bones. The main advantage of the orthopedical presurgical 3d printed models is the possibility to create an accurate model, which can be used for metal osteosynthesis premodelling - the surgeons can prepare (bend, twist, accommodate) the implants prior the operation. After a sterilisation (autoclaving, UV-light, gamma-ray etc etc), those implants can be used in the planned surgery, which will decrease the overall surgery time (in some cases with more than an hour) with all it's advantages, including a dramatic decreasing of the complication rates, the X-ray exposure for the patient and for the surgeons, the cost and the recovery rates etc etc. For this purpose, you need a smooth bone model, with clearly recognizable and realistic landmarks, realistic measurements and physical properties, close to the real bone. Traditionally, the orthopedical surgeons in my institution used polystyrene models, made by hand, now they have access to 3d printed models and they are better in any way. Here are some tips how to print that thing. 1. Method - FDM. The bone models are the easiest and the most forgiving to print. You can make them with literally every printer you can find. FDM is a strong option here and, in my opinion, the best method on choice. 2. Matherial - PLA - it's cheap, it's easy to print, it's the bread and butter for the bone printing. Cool extruding temperature (195-200C) decrease the stringing and increases the details in the models. 3. Layer heigh - 0,150mm. This is the best compromise between the print time, the quality and the usability of the models. 3. Perimeters (shell thickness) - 4 perimeters. One perimeter means one string of 3d printed material. It's width depends on the nozzle diameter and the layer thickness. For Prusa MK3 with 0,4mm nozzle 1 perimeter is ~0,4mm. To achieve a realistic cortical bone, use 4 perimeters (1,7mm). The surgeons loves to cut stuff, including the models, in some cases I have to print several models for training purposes. 4 perimeters PLA feels like a real bone. 4. Infill - 15% 3d infill (gyroid, cuboid or 3d honey comb). The gyroid is the best - it looks and feels like a spongy bone. It's important to provide a realistic tactile sensation for the surgeons, especially the trainees. They have to be able to feel the moment, when they pass the cortical bone and rush into the spongiosa. 5. Color - different colors for every fracture fragment. If the model is combined with a 3D visualization, which colors corresponds with the colors of the 3d print, this will make the premodelling work much easier for the surgeons. Also, it looks professional and appealing. 6. Postprocessing - a little sanding and a touch of a acrylic varnish will make the model much better. 7. Support material - every slicer software can generate support, based on the angle between the building platform and the Z axis of the model. You can control this in details with support blockers and support enforcers, which for the bones is not necessary, but it's crucial for the vessels and the heart. Conclusions - the bone models are easy to make, they look marvelous and can really change the outcome of every orthopedical surgery.
  7. 1 point
  8. 1 point
    embodi3d

    embodi3D 3D Printed Models

    Examples of 3D printed models created by embodi3D
  9. 1 point
    valchanov

    Medical 3D printing 101

    Bones The main advantage of the orthopedical presurgical 3d printed models is the possibility to create an accurate model, which can be used for metal osteosynthesis premodelling - the surgeons can prepare (bend, twist, accommodate) the implants prior the operation. After a sterilisation (autoclaving, UV-light, gamma-ray etc etc), those implants can be used in the planned surgery, which will decrease the overall surgery time (in some cases with more than an hour) with all it's advantages, including a dramatic decreasing of the complication rates, the X-ray exposure for the patient and for the surgeons, the cost and the recovery rates etc etc. For this purpose, you need a smooth bone model, with clearly recognizable and realistic landmarks, realistic measurements and physical properties, close to the real bone. Traditionally, the orthopedical surgeons in my institution used polystyrene models, made by hand, now they have access to 3d printed models and they are better in any way. Here are some tips how to print that thing. 1. Method - FDM. The bone models are the easiest and the most forgiving to print. You can make them with literally every printer you can find. FDM is a strong option here and, in my opinion, the best method on choice.2. Matherial - PLA - it's cheap, it's easy to print, it's the bread and butter for the bone printing. Cool extruding temperature (195-200C) decrease the stringing and increases the details in the models.3. Layer heigh - 0,150mm. This is the best compromise between the print time, the quality and the usability of the models.3. Perimeters (shell thickness) - 4 perimeters. One perimeter means one string of 3d printed material. It's width depends on the nozzle diameter and the layer thickness. For Prusa MK3 with 0,4mm nozzle 1 perimeter is ~0,4mm. To achieve a realistic cortical bone, use 4 perimeters (1,7mm). The surgeons loves to cut stuff, including the models, in some cases I have to print several models for training purposes. 4 perimeters PLA feels like a real bone.4. Infill - 15% 3d infill (gyroid, cuboid or 3d honey comb). The gyroid is the best - it looks and feels like a spongy bone. It's important to provide a realistic tactile sensation for the surgeons, especially the trainees. They have to be able to feel the moment, when they pass the cortical bone and rush into the spongiosa.5. Color - different colors for every fracture fragment. If the model is combined with a 3D visualization, which colors corresponds with the colors of the 3d print, this will make the premodelling work much easier for the surgeons. Also, it looks professional and appealing. 6. Postprocessing - a little sanding and a touch of a acrylic varnish will make the model much better.7. Support material - every slicer software can generate support, based on the angle between the building platform and the Z axis of the model. You can control this in details with support blockers and support enforcers, which for the bones is not necessary, but it's crucial for the vessels and the heart.Conclusions - the bone models are easy to make, they look marvelous and can really change the outcome of every orthopedical surgery.
  10. 1 point

    Version 1.0.0

    11 downloads

    Patient born with Pulmonary Stenosis, Double Outlet Right Ventricle, Transposition of the Great Arteries, Ventricular Septal Defect, and Atrial Septal Defect. Scanned 19.5 Years later. This file was created with democratiz3D. Automatically create 3D printable models from CT scans. Learn more. tetralogy of fallot, ventricle, auricle, pulmonary, stenosis, double outlet right ventricle, transposition of the great arteries, ventricular septal defect, atrial septal, defect, ct scan with contrast, mediastinum, lung, sternum, ribs, bronchi, trachea, cava, vein, inferior, superior, aorta, ascending, descending, mediastinum, 3d, model, printable, .stl,

    Free

  11. 1 point

    Version 1.0.0

    137 downloads

    Intervertebral disks for segmented cervical spine 3D print

    $1.99

  12. 1 point

    Version 1.0.0

    20 downloads

    This is a full High definition 3D model set of a head, made from 0,7mm CT scan. Caucasian female in her 20s. The set doesn't include the original dataset and the metadata for ethical reasons. I can provide the dataset as a personal request. The set includes: 1. Full head model of a head with the nasal cavity, paranasal sinuses, the pharynx and the superior part of the larynx. 2. Skull model with most of the foramens. The inner ear is NOT included in the set. 3. Mandibula model. 4. The first 6 cervical vertebrae. 5. The hyoid bone. The models are accurate, with proper geometry and measurements, in their raw format. They are also 3d printable. I can slice and dice them in whatever format you need, but I'll have to charge you additionally for that. anatomy, morphology, head, skull, vertebra, cervical, hyoid, set, atlas, axis, frontal, temporal, occipital, orbit, zygomatic, arch, mandible, angle, ramus, nasal, anterior, posterior, vertebral, foramen, mastoid, process, skin, bone, 3d, model, printable, .stl, maxillofacial, eye, lips, face, spinous, teeth, tooth, incisor, molar, premolar, canine, coronoid,

    $100.00

  13. 1 point
    kayla elvir

    kayla

    Version 1.0.0

    20 downloads

    neck jaw, head, neck, .stl, atlas, axis, odontoid, cervical, spine, petrous, ridge, frontal, parietal, temporal, orbit, eyeball, ethmoid, cells, mastoid, foramen, magnum, thyroid, gland, infrahyoid, suprahyoid, trachea, esophagus, ct, scan, with, contrast, sinus, venous, mandible, maxilla, cerebellum,

    Free

  14. 1 point
    valchanov

    Postprocessing 3D prints

    I was thinking the same, until I found the Silk PLA. It's a composite - 85% PLA, 15% Polyester and it's dirt cheap. The advantages are: 1. In contrast to the natural PLA, the Silk one doesn't warp or deform during the cooling (or at least the deformation is minimal). 2. It prints really well. You can make the impossible possible with this material. 3. It looks amazing. The layer lines are almost invisible, the silk finishing is appealing, the colors are vivid. 4. The supports falls easily. You just have to pull them and they are done. Tried this on a heart, brain and aorta models. You don't even need increased retraction for this. 5. The stringing is minimal. No more "hairs". 6. It's cheap. 7. Because of those characteristics, this is material of choice for models with accurate morphological measurements. I'm using mostly this material, when I want to have an accurate model. So, check the local store for this material and try it yourself. You can thank me latter. P.S. For best results, print it at 200C.
  15. 1 point

    Version 1.0.0

    5 downloads

    Thoracoabdominal aneurysm - 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. whole, body, bone, 3d, model, .stl, printable, thorax, chest, scapula, clavicle, ribs, heart, sternum, ventricle, auricle, bronchi, kidney, celiac, trunk, mesenteric, superior, renal, arteries, descendent, aneurysm, graft, iliac, lumbar, spine, pelvis, ischium, sacrum, foramina, coccyx, acromion

    Free

  16. 1 point

    Version 1.0.0

    11 downloads

    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,

    Free

  17. 1 point

    Version 1.0.0

    5 downloads

    CTA Head Muscle - 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. Temporal fascia, Auricularis anterior muscle, Auricularis superior muscle, Auricularis posterior muscle, Frontal belly of occipitofrontalis muscle, Procerus muscle, Masseteric fascia, Levator labii superioris muscle, Orbicularis oris muscle, Zygomaticus minor muscle, Zygomaticus major muscle, Orbicularis oris muscle, Mentalis muscle, Depressor labii inferioris muscle, Modiolus (circled region), Depressor anguli oris muscle, Buccinator muscle, Risorius muscle, Platysma muscle, Orbicularis oculi muscle, Orbital part, Palpebral part, Occipital belly of occipitofrontalis muscle, Parotidfascia, Nasalis muscle, transverse part, Alar part, Depressor septi nasi muscle, Investing layer of (deep) cervical fascia, Levator labii superioris alaeque nasi muscle, 3d, model, .stl, head, skull, face, facial, external, auditory, conduct, neck, face

    Free

  18. 1 point

    Version 1.0.0

    2 downloads

    Muham0 - 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. Temporal fascia, Auricularis anterior muscle, Auricularis superior muscle, Auricularis posterior muscle, Frontal belly of occipitofrontalis muscle, Procerus muscle, Masseteric fascia, Levator labii superioris muscle, Orbicularis oris muscle, Zygomaticus minor muscle, Zygomaticus major muscle, Orbicularis oris muscle, Mentalis muscle, Depressor labii inferioris muscle, Modiolus (circled region), Depressor anguli oris muscle, Buccinator muscle, Risorius muscle, Platysma muscle, Orbicularis oculi muscle, Orbital part, Palpebral part, Occipital belly of occipitofrontalis muscle, Parotidfascia, Nasalis muscle, transverse part, Alar part, Depressor septi nasi muscle, Investing layer of (deep) cervical fascia, Levator labii superioris alaeque nasi muscle, 3d, model, .stl, head, skull, face, facial, external, auditory, conduct, neck, face

    Free

  19. 1 point

    Version 1.0.0

    76 downloads

    Individually segmented vertebra for cervical spine, C1 through C7. Cervical disks are available as a separate file. Clear silicone sealant works well to assemble print. Anterior arch of the atlas, Base of the skull, Odontoid process, Posterior arch of the atlas, Mandible, Spinous process, Body of the axis, Anterior superior margin of the vertebra, Transverse process, Anterior inferior margin of the vertebra, Superior articular facet, Inferior articular facet, Superior vertebral end plate, Inferior vertebral end plate, Intervertebral facet joint, Intervertebral disk space, Lamina, Articular pillar, Spinous process

    $4.00

  20. 1 point

    495 downloads

    This half-size half-skull model shows detailed skull anatomy, including the cervical spine, skull base foramina, paranasal sinuses, and orbit. Perfect for teaching and as a discussion piece. Available for download in full and half size, STL and COLLADA formats. Please download and modify! Share your new creation by uploading to Embodi3D!

    Free

  21. 1 point

    Version 1.0.0

    3 downloads

    Aorta 1 - 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. muscle, pectoral, serratus, minor, teres, sternum, major, shoulder, ribs, chest, thorax, trapezium, dorsal, back, spine, spinous, ventricle, auricle, bronchi, trachea, intercostal

    Free

  22. 1 point

    Version 1.0.0

    13 downloads

    Aorta 2 - 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. pulmonary, trubk, heart, ventricle, auricle, aorta, descendent, ascendent, bronchi, trachea, ribs, bone, dorsal, sternum, arch, carotid, subclavian

    Free

  23. 1 point

    Version 1.0.0

    63 downloads

    Hand Muscle - stl file processed, 3d, model, muscle, hand, wrist, stl, fingers, printable, extensor pollicis longus and brevis, extensor indicis, muscles of Hand: dorsal and palmar interosseous, lumbrical, extensor digitorum, extensor digiti minimi, extensor carpi ulnaris, abductor pollicis longus and abductor pollicis brevis, opponens pollicis, flexor pollicis brevis, adductor pollicis, abductor digiti minimi, flexor digiti minimi brevis, opponens digiti minimi

    Free

  24. 1 point

    Version 1.0.0

    14 downloads

    This 3D printable STL file contains a model of the left shoulder was derived from a real medical CT scan. It shows the deltoid, pectoralis, triceps, and biceps muscles in great detail. Also, the muscles of the chest wall and ribs are also shown. This model was created using the democratiz3D free online 3D model creation service. QIN-HN-01-0003

    Free

  25. 1 point
    Dr. Mike

    Human Heart

    Version 2

    608 downloads

    STL file of 3D printable human heart, full-size. The model has not yet been optimized for 3D printing, so there may be issues with minimum wall thickness, etc. If you print this file, please report back about how the printing went.

    Free

  26. 1 point

    Version 1.0.0

    3 downloads

    The shoulder joint is a large and complex ball and socket joint formed by the humerus and the scapula (glenohumeral joint) while the clavicle join the acromion to form the acromioclavicular joint. The shoulder joint is the most mobile joint in the human body on cost of instability. Lot of elements share to compensate the instability such as rotator cuff muscles, tendons and ligaments as well as the glenoid labrum. Muscles of the shoulder joint The rotator cuff: supraspinatus, infraspinatus, teres minor and subscapularis Posterior muscle group: deltoid, latissimus dorsi and teres major Anterior muscle group: pectoralis major and coracobrachialis This 3D model was created from the file STS_040 The original CT examination can be reviewed at: The 3D bone model created from this scan can be reviewed at:

    Free

  27. 1 point

    Version 1.0.0

    7 downloads

    The shoulder joint is a large and complex ball and socket joint formed by the humerus and the scapula (glenohumeral joint) while the clavicle join the acromion to form the acromioclavicular joint. The shoulder joint is the most mobile joint in the human body on cost of instability. Lot of elements share to compensate the instability such as rotator cuff muscles, tendons and ligaments as well as the glenoid labrum. Muscles of the shoulder joint The rotator cuff: supraspinatus, infraspinatus, teres minor and subscapularis Posterior muscle group: deltoid, latissimus dorsi and teres major Anterior muscle group: pectoralis major and coracobrachialis This 3D model was created from the file STS_037 The original CT examination can be reviewed at: The 3D bone model created from this scan can be reviewed at: The 3D skin model created from this scan can be reviewed at:

    Free

  28. 1 point

    Version 1.0.0

    110 downloads

    Cardiac CTA showing the left heart. This was derived from a file originally shared by Liam.

    Free

  29. 1 point
    SJSato

    Lumbar Spine 3D print

    Dr. Mike, mainly I like to print biomedical models for personal interest and curiosity. I am trying to get more adept at segmenting out my own models from scans but I'm still on the upward slope of learning. At this point, it is just a geeky hobby.
  30. 1 point

    658 downloads

    This anatomically accurate heart and pulmonary artery tree was extracted from a CT angiogram DICOM dataset (0.4 mm slice thickness x 300 slices). The model may be useful for medical education and shows shows the aorta, coronary sinuses, coronary arteries, pulmonary arteries and the cardiac ventricles and atria. The file is in STL format and compressed with ZIP. Thank you to Dr Mike for the excellent renders. Find us at www.healthphysics.com.au

    Free

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