Additive Manufacturing

MAR 2018

ADDITIVE MANUFACTURING is the magazine devoted to industrial applications of 3D printing and digital layering technology. We cover the promise and the challenges of this technology for making functional tooling and end-use production parts.

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ByyBy Author MARCH 2018 Additive Manufacturing CHECK THIS OUT 64 By Peter Zelinski How Smith & Nephew Delivers Patient-Specific Surgical Tooling Medical device maker Smith & Nephew uses MRI measurements of knee-replacement patients in conjunction with 3D printing to make a "cutting block" tailored to the patient's individual form and dimensions. The custom instru- ment guides the surgeon's work, ensuring precise implant placement for that patient, which promises to maximize the implant's life. The custom surgical guides made from patient data are produced on an EOS additive machine and shipped to the hospital for surgery. Mark Morrison, manager of research and tribology for Smith & Nephew, recently discussed this application with me in a conversation we filmed at the most recent Additive Manufacturing Conference. Watch the video at gbm.media/smithneph, and find our complete collection of video interviews at gbm.media/amvideos. Smith & Nephew's Mark Morrison filmed the conversation with me at the most recent Additive Manufacturing Conference (additiveconference.com), where he was a speaker. The company is also using additive manufacturing for implants themselves. Since 2016, it has manufactured acetabular cups for hip replacement this way, employing additive to realize a propri- etary porous structure that aids fusing with the patient's bone. Tailored to the geometry of the patient's body thanks to MRI measurement, the custom instrument guides the surgeon's cut to ensure precise implant placement.

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