IMPLANT DESIGN USING HETEROGENEOUS BONE PROPERTIES AND PROBABILISTIC TOOLS TO DETERMINE OPTIMAL GEOMETRIES FOR FIXATION FEATURES

摘要

An implant, and a method of designing the implant, takes into account heterogeneous bone properties. The method may be directed to designing a fixation feature of the implant using a virtual bone model. Bone property information derived from image data may be mapped to the virtual bone. A virtual model of the implant may be created, including a virtual fixation feature characterized by an input parameter. One or more simulations may be performed, the simulations being of an implantation of the virtual implant on the virtual bone. Values for at least one input parameter may be used for each simulation, each simulation resulting in a value for an output parameter. The input and output values may be analyzed to derive a relationship between the values, the relationship being used to design the fixation feature of the implant.

主权项

1. A method of designing at least one fixation feature of an implant for a bone, comprising:
creating a virtual model of the bone; mapping bone property information to the virtual bone, the bone property information derived from image data; creating a virtual model of the implant including at least one virtual fixation feature characterized by at least one input parameter; performing a first simulation of an implantation of the virtual implant on the virtual bone with a first value for the at least one input parameter, the first simulation resulting in at least a first value for an output parameter; performing a second simulation of the implantation of the virtual implant on the virtual bone with a second value for the at least one input parameter, the second simulation resulting in at least a second value for the output parameter; deriving a relationship between the values of the input parameter and the values of the output parameter; and designing the fixation feature of the implant based on the derived relationship.