Technique for determining a trajectory defined by an elongated member placed in bone
AssigneeStryker European Operations Limited
InventorFlorian Herrmann
Life of this patent
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Abstract
A computer-implemented technique of determining a trajectory defined by a guide wire or other elongated member is presented. A method implementation of the technique in one variant comprises obtaining image data representative of a guide wire placed in a bone, processing the image data to determine an extension of the guide wire, and selecting a portion of the guide wire extension. The method further comprises determining, from the selected portion of the guide wire extension, trajectory data indicative of a guide wire-defined trajectory.
Claims20
A computer-implemented method of determining a trajectory defined by an elongated member, the method comprising
- obtaining image data representative of an elongated member placed in a bone;
- processing the image data to determine an extension of the elongated member;
- segmenting the image data to determine first image information representative of a bone surface;
- selecting a portion of the extension of the elongated member, wherein selecting the portion of the extension of the elongated member comprises determining an intersection between the bone surface and the extension of the elongated member;
- and
- determining, from the selected portion of the extension of the elongated member, trajectory data indicative of a trajectory defined by the elongated member.
An apparatus computer system comprising one or more processors and memory storing program code for controlling operation of the one or more processors for determining a trajectory defined by an elongated member, the apparatus computer system being configured to
- obtain image data representative of an elongated member placed in a bone;
- process the image data to determine an extension of the elongated member;
- segment the image data to determine first image information representative of a bone surface;
- select a portion of the extension of the elongated member, wherein selecting the portion of the extension of the elongated member comprises determining an intersection between the bone surface and the extension of the elongated member;
- and
- determine, from the selected portion of the extension of the elongated member, trajectory data indicative of a trajectory defined by the elongated member.
Dependencies are inferred from the claim text.