Formlabs, a 3D printing system manufacturer, and Dr Sam Pashneh-Tala, Research Fellow at the University of Sheffield, have developed a 3D printing technique for complex artificial blood vessels which can aid surgery for cardiovascular disease.

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Conventional surgical treatments for cardiovascular disease rely on autografts, which require invasive surgery. Synthetic vascular grafts made from polymer materials are also available, but these are prone to infection and blood clotting, especially in smaller diameter vessels. A new technique is needed, and this is where tissue engineering fits in, enabling new blood vessels to be grown in the lab and then used for implantation.

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Dr. Sam Pashneh-Tala from the University of Sheffield is now using high-precision desktop stereolithography (SLA) 3D printing to produce tissue-engineered blood vessels with a variety of geometries. His unique methods will allow for patient-specific vascular graft designs to be produced, so patients and doctors will have more surgical options. […]

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