| abstract |
A three-dimensional marking device includes: a multi-faceted cube including at least four sides, the at least four sides respectively serving as a main mark and at least three sub-marks, wherein the main mark includes a main graphic code, and the at least three sub-marks each include a first A secondary graphic code, a second graphic code, and a third graphic code, the main graphic code is used to provide a spatial coordinate information, which is used to calculate the six-degree-of-freedom attitude data; and a nail-shaped body to fix a On the surgical site. |