- 专利标题: METHOD, SYSTEM AND APPARATUS FOR MAINTAINING PATIENT REGISTRATION IN A SURGICAL NAVIGATION SYSTEM
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申请号: US17301988申请日: 2021-04-21
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公开(公告)号: US20210259784A1公开(公告)日: 2021-08-26
- 发明人: Audrey Yu-Ching KUO , Kirusha SRIMOHANARAJAH , Gal SELA , Alexander Gyles PANTHER , Kelly Noel DYER
- 申请人: SYNAPTIVE MEDICAL INC.
- 申请人地址: CA Toronto
- 专利权人: SYNAPTIVE MEDICAL INC.
- 当前专利权人: SYNAPTIVE MEDICAL INC.
- 当前专利权人地址: CA Toronto
- 优先权: CA2958624 20170221
- 主分类号: A61B34/20
- IPC分类号: A61B34/20 ; G01R33/28 ; A61B5/11 ; A61B5/00 ; A61B90/00 ; A61B5/055
摘要:
A device and methods for maintaining patient registration in surgical navigation, involving: obtaining a patient position in a tracking system frame of reference, based on a fiducial marker array affixed in a first position relative to the patient; receiving an initial surface scan depicting the patient and the fiducial array; responsive to receiving an intraoperative image depicting the patient: obtaining a position, in the tracking system frame of reference, of the fiducial array affixed in a second position relative to the patient; receiving a secondary surface scan depicting the patient and the fiducial array; detecting a deviation in a position of the fiducial marker array relative to the patient between the initial and secondary surface scans; and applying the deviation to the position of the patient to generate an updated position of the patient in the tracking system frame of reference, based on the fiducial array affixed in the second position.