| 摘要 |
A system and method of developing better-designed medical devices, particularly prosthesis and more particularly cardiovascular stents and endovascular grafts. The system comprises a geometry generator, a mesh generator, a stress/strain/deformation analyzer, and, optionally, a visualization tool. In one embodiment, the geometry generator receives three - dimensional volumetric data of an anatomical feature and generates a geometr ic model. The mesh generator then receives such geometric model of an anatomica l feature or an in vitro model and a geometric model of a candidate medical device. In another embodiment, the mesh generator only receives a geometric model of the candidate medical device. Using the geometric model(s) received , the mesh generator creates or generates a mesh or a finite element model. Th e stress/strain/deformation analyzer then receives the mesh, and the material models and loads of that mesh. Using analysis, preferably non-linear analysi s, the stress/strain/deformation analyzer determines the predicted stresses, strains, and deformations on the candidate medical device. Such stresses, strains, and deformations may optionally be simulated visually using a visualization tool. |
