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After 17 Years at 3D Systems, Katie Weimer is betting on regenerative breast tissue featuring GenesisTissue

DateJuly 13, 2026
CategoriesCohort News
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After spending 17 years helping build healthcare applications at 3D Systems and its predecessor Medical Modeling, Katie Weimer wasn’t planning to launch a startup. But when a regenerative breast tissue project she had worked on for years was in danger of being shelved, she decided to take a chance.

“It was just kind of going to go away, and I said, ‘I’ll take it,'” Weimer told 3DPrint.com. “I had been working on this regenerative breast tissue project since roughly 2021. I believed in the mission and didn’t want to see it disappear. It needed focused money and attention, and I needed to move fast. Those things are really hard in a big company.”

That decision eventually became GenesisTissue, a Colorado-based startup developing a 3D printed scaffold designed to help patients regenerate their own breast tissue after cancer surgery.

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