University of Minnesota


Earl E. Bakken
Medical Devices Center

Innovation Patent

Material Analysis of Anatomical Items


Fastener Placement Apparatus

Illustration from Patent

A computer-implemented method for medical device modeling includes accessing an electronic definition for a model of a three-dimensional item and an electronic definition of a three-dimensional spline relating to an internal anatomical volume; determining, with a computer-based finite element analysis system and using the electronic definitions, stresses created by the three-dimensional item along the three-dimensional spline, for different points along the three-dimensional spline; and displaying stress data generated by the finite element analysis system with a visualization system, the display of the stress data indicating levels of stress on portions of the three-dimensional item at particular locations along the three-dimensional spline.

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Patent No.: US 9,865,096
Date of Patent: January 9, 2018

Inventors: Dane Coffey (Burbank, CA), Daniel F. Keefe (St. Paul, MN), Arthur G. Erdman (New Brighton, MN), Benjamin J. Bidne (Hanover, MN), Gregory Ernest Ostenson (St. Paul, MN), David M. Flynn (Lino Lakes, MN), Kenneth Matthew Merdan (Loretto, MN), Chi-Lun Lin (Minneapolis, MN)

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