Bone and tool tracking with optical waveguide modeling system in computer-assisted surgery using patient-attached multicore optical fiber

摘要

There is described a method for tracking a patient in a coordinate system of a surgical tool using an optical waveguide modeling system having one multicore optical fiber with a portion attached to the surgical tool and a portion attached to the patient. The method generally includes receiving a patient model representing a shape and orientation of at least one of a limb and a bone of the patient, generating a waveguide model representing a shape and orientation of the multicore optical fiber as attached to the surgical tool and to the patient, and tracking the patient model in the coordinate system by registering the patient model in the coordinate system using the waveguide model and known spatial relationships relating to the surgical tool, the portion of the multicore optical fiber attached to the surgical tool, and the portion of the multicore optical fiber attached to the patient.