Patent ID: 11918294
Assignee: BRAINLAB AG
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A computer-implemented method of determining a virtual trajectory with respect to a three-dimensional virtual representation of a patient's body part, the method comprising:
a) acquiring image data which describes the three-dimensional virtual representation of the patient's body part;
b) acquiring position data which describes a spatial position of a user's visual axis within a virtual-world co-ordinate system;
c) determining visualization data based on the image data and the position data, which describes an image of the virtual representation of the patient's body part as seen along the user's visual axis within the virtual-world co-ordinate system; and
d) determining virtual-world trajectory data based on the position data, which describes the spatial position of the virtual trajectory with respect to the virtual representation of the patient's body part within the virtual-world co-ordinate system, wherein the spatial position of the virtual trajectory within the virtual-world co-ordinate system is defined to coincide with and to move with the spatial position of the user's visual axis as the user's visual axis is moved within the virtual-world co-ordinate system until the spatial position of the virtual trajectory within the virtual-world co-ordinate system is fixed to a specific spatial position with respect to the virtual representation of the patient's body part via a user input.