3D Printing Trends in Manufacturing Day 2: End-Use Parts

Jack Stubbs

Future of Simulation Training Tablet App instruction Ultra realism Modular and Expandable Performance Metrics

3D Print Applications Anatomical models Pilot production training models Molds for anatomical models Prototype applications Device concept models Instrumented surgical device testing

Anatomical Models

Arthroscopic Skills Trainers 10 skills trainers built Multi-Institutional Clinical study started at the University of MN Medical School

Prototype C-Arm X-ray Trainer Used in Training courses in Europe and Asia 2 systems developed Multiple anatomical models Transitioning to production 50 systems ordered

Pilot Production

Medical Instrument Prototypes with Sensors Laryngoscope with pressure sensors Used to measure student performance on simulators and cadavers

CREST Process for Design DICOM Imaging Tissue segmentation Digital Model Dynamic models Tissue Characterization

Segmentation Segmentation software, like ViTAL’s Vitrea, allows for the isolation of desired structures, and extraction of a 3D model.

3D Model Building Extracted 3D model is brought into a 3D software program and used as a template to construct an accurate digital.

3D Sculpt and Paint 3D models are sculpted and painted to add realistic surface detail

Constructing Full Anatomical Model from MRI

3D Print The high-detail models are sent to a 3D printer, to be made into molds for soft, silicone versions.

3D Print as Anatomy Mold

Spine and Skeletal

Cam Model from MR using Vitrea) Model Accuracy   Patients Cam Model from MR using Vitrea) Tongue Mean(s.d) 95% Cl cross sectional area(cm2) 25.6(3.7) 23.8-27.5 24 Horizontal diameter(cm) 6.3(0.7) 5.9-6.6 6.5 Coronar diameter(cm) 4.4(0.5) 4.2-4.7 4 Edge-Pharynx(cm) 1.6(0.7) 1.2-1.9 1.7 Palate 2.7(1.0) 2.3-3.2 Curved length(cm) 3.7(0.6) 3.4-4.0 3.9 Height(cm) 2.7(0.7) 2.4-3.1 2.7 Center-Pharynx(cm) 1.5(0.2) 1.4-1.6 1.4 Palate-Epiglottis (cm) 4.4(0.9) 4.0-4.9 Palate- Vallecula(cm) 5.7(1.0) 5.3-6.2 5.7 Epiglottis Anterior Length 1.6(0.4) 1.4-1.7 Posterior length 2.8(0.7) 2.5-3.2 2.8 Tip-Pharynx(cm) 0.9(0.4) 0.7-1.1 0.6 Vallecul-Pharynx(cm) 1.7(0.6) 1.4-2.0 2.2 Overall Distances Teeth-Pharynx(cm) 8.1(0.6) 7.9-8.4 8.8 Lip-Pharynx(cm) 9.5(0.6) 9.2-9.8 9.6 Volumes Oral Airspace(cm3) 4.3(5.3) 1.9-6.8 Retropalatal Airspace(cm3) 5.1(2.0) 4.2-6.1 Pharyngeal Airspace(cm3) 13.5(7.7) 9.9-17.1 18 approximately Comparison measurements were made on the CREST MR model of airway anatomy that is being used to create the synthetic tissue models. The publication, ‘Degrees of Reality’, published in the Journal of American Anethesiology, June, 2012, is used as a summary of average dimensional features of human anatomy.

Phase 1 Prototype

Intubation Training

Soooo creepy… 