- 专利标题: Methods and devices for tracking objects by surgical navigation systems
-
申请号: US15821985申请日: 2017-11-24
-
公开(公告)号: US11103314B2公开(公告)日: 2021-08-31
- 发明人: Kamyar Abhari , Kai Michael Hynna , Gal Sela , Kirusha Srimohanarajah
- 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
- 代理机构: Rowand LLP
- 主分类号: A61B34/20
- IPC分类号: A61B34/20 ; G16H20/40 ; G16H30/40 ; G16H30/20 ; A61B90/00 ; A61B90/50 ; A61B34/30 ; A61B17/00
摘要:
A method and device for tracking objects by surgical navigation systems. The method includes: capturing an image of the tracked object; determining whether a unique identifiable feature associated with at least one totem pattern is discernible in the image; when the unique identifiable feature is discernible: determining a position or an orientation of the tracked object based on the at least one totem pattern; and registering the at least one totem pattern in the surgical coordinate space; and when the unique identifiable feature is indiscernible: determining a position of each totem pattern relative to other totem patterns such that a combination of totem patterns within the captured image is a marker group detectable as a composite totem pattern; determining a position or an orientation of the tracked object based on the composite totem pattern associated with the tracked object; and registering the composite totem pattern in the surgical coordinate space.