Invention Grant
- Patent Title: System and method for determining the three-dimensional location and orientation of identification markers
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Application No.: US16409835Application Date: 2019-05-12
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Publication No.: US11304777B2Publication Date: 2022-04-19
- Inventor: Ehud (Udi) Daon , Martin Beckett
- Applicant: Navigate Surgical Technologies, Inc.
- Applicant Address: CA Vancouver
- Assignee: Navigate Surgical Technologies, Inc.
- Current Assignee: Navigate Surgical Technologies, Inc.
- Current Assignee Address: CA Vancouver
- Agency: Brannon Sowers & Cracraft PC
- Agent Kevin R. Erdman
- Main IPC: A61B9/00
- IPC: A61B9/00 ; A61B90/94 ; A61B90/00 ; A61C1/08

Abstract:
The present invention relates to a tool system comprising a handheld implement having a passive vectorized tracking marker permanently integrated with the implement at a predetermined location on the implement in a predetermined orientation with respect to the implement; and a database comprising geometric information describing the at least one of a rotationally asymmetric shape of the tracking marker and a rotationally asymmetric pattern disposed on the tracking marker. The system may further comprise: a tracker configured for obtaining image information about the tracking marker when the tracking marker is in a field of view of the tracker; and a controller having a processor and memory, the controller in communication with the database and the tracker, the processor programmable for receiving and processing image information from the tracker; accessing the database to retrieve the geometric information; and comparing the image information with the geometric information. The handheld implement may be three-dimensionally tracked by the tracker.
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