- 专利标题: CALLIBRATION-FREE SYSTEM AND METHOD FOR DETERMINING THE THREE-DIMENSIONAL LOCATION AND ORIENTATION OF IDENTIFICATION MARKERS
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申请号: US15788826申请日: 2017-10-20
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公开(公告)号: US20180055579A1公开(公告)日: 2018-03-01
- 发明人: Ehud (Udi) DAON , Martin Gregory BECKETT
- 申请人: Navigate Surgical Technologies, Inc.
- 主分类号: A61B34/20
- IPC分类号: A61B34/20 ; A61B90/00 ; A61C1/00
摘要:
The present invention involves a vectorized multi-material fiducial reference for use in tracking on a user-calibration free basis a non-visible scan-detectable structure of a body as part of a three-dimensional tracking system. The fiducial consists of scan-detectable elements embedded within the body of the fiducial, the body being formed of a material compatible with the tracked body. The scan-detectable elements are embedded in a rotationally asymmetric pattern in the fiducial with to an accuracy compatible with surgery. A vectorized tracking marker may be attached directly or indirectly to the fiducial. The system employs a controller in communication with a non-stereo optical tracker to track in real time the marker and thereby the fiducial based on a prior scan of the surgical site with the fiducial attached. A method for manufacturing the fiducial employs pins to hold the scan-detectable elements accurately in position while forming the body of the fiducial around the elements.
公开/授权文献
- US1793026A Twin-section egg carton 公开/授权日:1931-02-17