公开(公告)号：US20230371984A1

公开(公告)日：2023-11-23

申请号：US18319445

申请日：2023-05-17

申请人： Washington University ,  The George Washington University

发明人： Eric Leuthardt ,  Guy Genin ,  Peter Brunner ,  Robert Pless ,  Camilo Molina ,  Carl Hacker ,  Daniel Moran ,  Alicia Repka ,  Halle Lowe ,  Jacob Sandler

IPC分类号： A61B17/58 ,  A61B34/20 ,  A61B90/00

CPC分类号： A61B17/58 ,  A61B34/20 ,  A61B90/39 ,  A61B2034/2055

摘要： Among the various aspects of the present disclosure is the provision of devices, systems, and methods for tracking the positions and orientations of at least one bone screw implanted within a surgical site. The disclosed device includes an extension that includes an extension base configured to couple to the bone screw, a marker arm coupled at one end to the extension base in a hinged arrangement, and an optical marker attached to a free end of the marker arm opposite the hinged attachment. The optical marker includes a pair of lenticular arrays in a coplanar arrangement in which the major axes of the lenticular arrays are mutually perpendicular. Each lenticular array is configured to display different hues at different viewing angles. The disclosed method includes transforming a single image of a surgical site containing at least one bone screw and extension into the global positions of each bone screw based on the pixel positions and hues corresponding to the lenticular arrays of each optical marker.