Stereolithography (SLA Models)

Stereolithography is a computer driven process that creates precise models using lasers and epoxy resin. A computer controlled HeCd laser generates an ultraviolet beam, which travels across the surface of a vat of a photo-curable liquid polymer. The laser draws each cross section of the anatomy, one layer at a time. The photovoltaic energy from the laser polymerizes the epoxy instantaneously. The cured cross sectional layer is lowered into the vat of resin and the next layer is processed. Successive layers of the anatomy are built in .006 inch increments until the model is completed.

Epoxy Mono-Color

These stereolithographic models are made with an epoxy resin and are the most accurate of all ProtoMED models. ProtoMED recommends ordering epoxy models for patient fitted prostheses that are cast or machined from the model.

Acrylic 2-Color

These stereolithographic models are made with an acrylic resin called Stereocol. Surgeons order two colored models when they have a portion of the anatomy they want to see distinguished from the bony tissue, or they want to take the model into surgery. Stereocol has an FDA USP Class VI rating.